Iman Ghaderi

Interests

Research

Assessments of Operative Performance and Laparoscopic Procedures

Teaching

Minimally Invasive and Endoscopic Surgery

Courses

Scholarly Contributions

Chapters

• Ghaderi, I., & Neumayer, L. A. (2016). The Management of Recurrent Inguinal Hernia. In Cameron and Cameron eds; Current Surgical Therapy. 12th Edition Elsevier.
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  In progress for the 12th Edition
• Ghaderi, I. (2017). Unitary View of Validity. In The SAGE Encyclopedia of Educational Research, Measurement and Evaluation.
• Ghaderi, I., & Galvani, C. (2016). Surgical Treatment of Obesity and the Metabolic Syndrome. In Scientific American Surgery. Decker Publishing; Hamilton, Ontario, Canada.

Journals/Publications

• Celdran-Bonafonte, D., O'Connell, K. A., Gothard, K. M., Ghaderi, I., Besselsen, D., & Doane, C. J. (2024). Dolichocolon (redundant colon) in a rhesus macaque (Macaca mulatta). Journal of medical primatology, 53(1), e12664. doi:10.1111/jmp.12664
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  Dolichocolon (redundant colon) is an underdiagnosed cause of severe constipation in humans. The clinical presentation reported here in a rhesus macaque closely resembles that of intestinal adenocarcinoma, the most common neoplasia in macaques. Dolichocolon should be considered in differential diagnosis of macaques with anorexia, weight loss, and constipation.
• Chang, M., Weiss, B., Worrell, S., Hsu, C. H., & Ghaderi, I. (2024). Readability of online patient education material for foregut surgery. Surgical endoscopy, Epub ahead of print. doi:10.1007/s00464-024-11042-z
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  Health literacy is the ability of individuals to use basic health information and services to make well-informed decisions. Low health literacy among surgical patients has been associated with nonadherence to preoperative and/or discharge instructions as well as poor comprehension of surgery. It likely poses as a barrier to patients considering foregut surgery which requires an understanding of different treatment options and specific diet instructions. The objective of this study was to assess and compare the readability of online patient education materials (PEM) for foregut surgery.
• Rahimi, A. O., Hsu, C. H., Soliman, D., Maegawa, F. B., & Ghaderi, I. (2024). The impact of COVID-19 pandemic on patient selection and access to care, approach type, and postoperative outcomes in bariatric surgery. Surgery for Obesity and Related Diseases: Official Journal of the American Society for Bariatric Surgery (ASMBS). doi:10.1016
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  The COVID-19 pandemic had affected the health systems across the world since early 2020 with a concern about access to medical care during the first wave of COVID-19 pandemic.
• Rahimi, A. O., Soliman, D., Hsu, C. H., & Ghaderi, I. (2024). The impact of gender, race, and ethnicity on bariatric surgery outcomes. Surgery for Obesity and Related Diseases: Official Journal of the American Society for Bariatric Surgery (ASMBS), 20(5), 454-461. doi:10.1016/j.soard.2023.12.020
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  The rates of postoperative complications can vary among specific patient populations.
• Ghaderi, I. (2023).

  Dolichocolon (redundant colon) in a rhesus macaque (Macaca mulatta)

  . Journal of Medical Primatology. doi:10.1111/jmp.12664
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  Dolichocolon (redundant colon) is an underdiagnosed cause of severe constipation in humans. The clinical presentation reported here in a rhesus macaque closely resembles that of intestinal adenocarcinoma, the most common neoplasia in macaques. Dolichocolon should be considered in differential diagnosis of macaques with anorexia, weight loss, and constipation.
• Jonas, N., Nagaraj, M. B., Scott, D., Ghaderi, I., Alseidi, A., Gee, D. W., Polanco, P. M., Shim, J. K., Stefanidis, D., & Nepomnayshy, D. (2023).

  Demonstrating Feasibility of Video-Based Assessment Metrics for the Advanced Training in Laparoscopic Suturing (ATLAS) Curriculum

  . Journal of the American College of Surgeons, S101. doi:10.1097/01.xcs.0000933184.65761.06
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  Jonas, Nicholas; Nagaraj, Madhuri MD, MS; Scott, Daniel J MD, FACS; Ghaderi, Iman MD, MSc, MHPE, FRCSC, FACS, FASMBS; Alseidi, Adnan A MD, EdM, FACS; Gee, Denise W MD, FACS; Polanco, Patricio Marcelo MD, FACS; Shim, Joon Kyung MD, FACS; Stefanidis, Dimitrios MD, FACS; Nepomnayshy, Dmitry MD, FACS Author Information
• Maegawa, F. B., Patel, A. D., Serrot, F. J., Patel, S. G., Stetler, J. L., Patel, D. C., Ghaderi, I., Hsu, C. H., Ashouri, Y., Sarmiento, J. M., Konstantinidis, I. T., & Lin, E. (2023). Gastric Cancer Surgery in the US: a Contemporary Trend Analysis of Lymphadenectomy and the Impact of Minimally Invasive Approaches. Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 27(9), 1825-1836. doi:10.1007/s11605-023-05735-4
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  The National Comprehensive Cancer Network guidelines recommend harvesting 16 or more lymph nodes for the adequate staging of gastric adenocarcinoma. This study examines the rate of adequate lymphadenectomy over recent years, its predictors, and its impact on overall survival(OS).
• Maegawa, F. B., Patel, A. D., Serrot, F. J., Patel, S. G., Stetler, J. L., Patel, D., Ghaderi, I., Hsu, C., Ashouri, Y., Sarmiento, J. M., Konstantinidis, I. T., & Lee, E. (2023).

  Gastric Cancer Surgery in the US: a Contemporary Trend Analysis of Lymphadenectomy and the Impact of Minimally Invasive Approaches

  . J Gastrointest Surg, 27, 1825-1836. doi:10.1007/s11605-023-05735-4
• Mashaqi, S., Rihawi, A., Rangan, P., Ho, K., Khokhar, M., Helmick, S., Ashouri, Y., Combs, D., Ghaderi, I., & Parthasarathy, S. (2023).

  The impact of bariatric surgery on breathing-related polysomnography parameters—Updated systematic review and meta-analysis

  . Frontiers in Sleep, 2 - 2023. doi:10.3389/frsle.2023.1212936
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  Introduction We conducted this systematic review and meta-analysis (SRMA) to evaluate the impact of bariatric surgery on obstructive sleep apnea (OSA) as represented by the following polysomnography (PSG) parameters: apnea-hypopnea index (AHI), oxygen desaturation index (ODI), mean oxygen desaturation (mean SpO 2 ), total sleep time spent with SpO 2 < 90% (T-90), and the nadir of oxygen saturation (L SpO 2 ). Methods A comprehensive search of the literature was conducted in Ovid MEDLINE, Embase, and Scopus databases from inception to March 31, 2023. Only articles written in English were reviewed. The analysis of all outcomes was performed using a random-effects model. We included 30 studies (two randomized controlled trials and 28 observational studies) in the final quantitative synthesis with a total of 1,369 patients. Results We concluded that bariatric surgery (regardless of the type) was associated with reduction in AHI [MD 23.2 events/h (95%CI 19.7, 26.8)], ODI [MD 26.8 events/h (95%CI 21.6, 32.1)], mean SpO 2 [MD−1.94% (95%CI −2.5, −1.4)], T-90 [MD 7.5min (95%CI 5.0, 10.0)], and L SpO 2 [MD 9.0% (95%CI −11.8, −6.3)]. Conclusion Our SRMA results are updates to previously published results and continue to support the positive impact of bariatric surgery on OSA and sleep-related hypoxia.
• Rahimi, A. O., Ashouri, Y., Maegawa, F. B., Hsu, C., & Ghaderi, I. (2023).

  Robotic Bariatric Surgery in Older Adults, Is It Safer Than the Laparoscopic Approach? A 7-Year Analysis of Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Database

  . OBES SURG, 33, 2671-2678. doi:10.1007/s11695-023-06720-1
• Rahimi, A. O., Ashouri, Y., Maegawa, F., Hsu, C. H., & Ghaderi, I. (2023). Robotic Bariatric Surgery in Older Adults, Is It Safer Than the Laparoscopic Approach? A 7-Year Analysis of Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Database. Obesity surgery, 33(9), 2671-2678.
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  Utilization of the robotic platform in bariatric surgery has increased over the past several years. The population of older adults who benefit from bariatric surgery is also growing. This study evaluated the safety of robotic-assisted bariatric surgery in older adults using the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Database.
• Rahimi, A. O., Hsu, C. H., Maegawa, F., Soliman, D., King, R. J., Ashouri, Y., & Ghaderi, I. (2023). First Assistant In Bariatric Surgery: A Comparison Between Laparoscopic And Robotic Approaches: A 4-Year Analysis of the MBSAQIP Database (2016-2019). Obesity surgery, 866-873. doi:10.1007/s11695-023-06996-3
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  The first assistant (FA) plays an important role in the operating room for bariatric surgery. The aim of this study was to examine the relationship between the type of FA and operative time (OT) and postoperative outcomes comparing robotic and laparoscopic approaches in bariatric surgery.
• Ashouri, Y., Ho, K., Ho, H., Hsu, C. H., Ghaderi, I., Riall, T. S., Konstantinidis, I. T., & Maegawa, F. B. (2022). Minimally invasive vs open pancreatoduodenectomy on oncological adequacy: a propensity score-matched analysis. Surgical endoscopy, 36(10), 7302-7311.
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  The adoption of minimally invasive pancreatoduodenectomy (MIPD) has increased over the last decade. Most of the data on perioperative and oncological outcomes derives from single-center high-volume hospitals. The impact of MIPD on oncological outcomes in a multicenter setting is poorly understood.
• Ho, K., Hsu, C. H., Maegawa, F., Ashouri, Y., Ho, H., Ajmal, S., & Ghaderi, I. (2022). Operative Time and 30-Day Outcomes in Bariatric Surgery: Comparison between Robotic and Laparoscopic Approach: 4-Year MBSAQIP Database Analysis. Journal of the American College of Surgeons, 235(1), 138-144.
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  The main criticism of robotic surgery is longer operative time (OT). The aim of this study was to examine the variables that determine OT, the association between OT and 30-day outcomes, and the effect of the robotic approach in bariatric surgery.
• Rahimi, A. O., Ho, K., Chang, M., Gasper, D., Ashouri, Y., Dearmon-Moore, D., Hsu, C. H., & Ghaderi, I. (2022). A systematic review of robotic surgery curricula using a contemporary educational framework. Surgical endoscopy.
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  There has been a rising trend in robotic surgery. Thus, there is demand for a robotic surgery curriculum (RSC) for training surgical trainees and practicing surgeons. There are limited data available about current curricular designs and the extent to which they have incorporated educational frameworks. Our aim was to study the existing robotic surgery curricula using Kern's 6-step approach in curriculum development.
• Gabrysz-Forget, F., Bonds, M., Lovett, M., Alseidi, A., Ghaderi, I., & Nepomnayshy, D. (2021). Practicing on the Advanced Training in Laparoscopic Suturing Curriculum (ATLAS): Is Mastery Learning in Residency Feasible to Achieve Expert-Level Performance in Laparoscopic Suturing?. Journal of surgical education, 77(5), 1138-1145.
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  Mastery learning assumes that given enough time and appropriate instructional strategies, most trainees will be able to achieve proficiency. Expert-level performance requires numerous hours of intensive and focus practice. We aimed to study whether it was possible for surgical trainees to achieve expert-derived proficiency level in laparoscopic suturing using the Advanced Training in Laparoscopic Suturing (ATLAS) curriculum over a short period of time.
• Ghaderi, I., Hsu, C. H., Hines, E. M., Alabagi, A., & Galvani, C. C. (2021). The Impact of Navigation Grid Overlay on Performance of Camera Assistants during Laparoscopic Abdominal Procedures: A Randomized Controlled Trial. Journal of surgical education, 78(3), 991-997.
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  Camera assistance is important for proper visualization of the operative field in laparoscopic surgery. Navigation grid (NG) has been designed to help the camera assistants focus the camera on the target operative field. This is a randomized, controlled trial to study the effect of the NG on performance of camera assistants.
• Ghaderi, I., Korovin, L., & Farrell, T. M. (2021). Preparation for Challenging Cases: What Differentiates Expert From Novice Surgeons?. Journal of surgical education, 78(2), 450-461.
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  The study of expert performance provides a rich field for exploration in the surgical literature. This study aimed to examine the difference between expert and novice surgeons in their preparation for challenging cases.
• Ghaderi, I., Tran, T., Carton, M., Samame, J., & Galvani, C. (2021). The impact of intensive laparoscopic training course with structured assessment and immediate feedback on residents' operative performance in animal lab. Surgical Endoscopy, 2021 Jul(35(7)), 3370-3378.
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  The impact of intensive laparoscopic training course with structured assessment and immediate feedback on residents' operative performance in animal lab. Surg Endosc. 2021 Jul;35(7):3370-3378. doi: 10.1007/s00464-020-07778-z. Epub 2020 Jul 8. PMID: 32642846.
• Ghaderi, I., Tran, T., Carton, M., Samamé, J., & Galvani, C. (2021). The impact of intensive laparoscopic training course with structured assessment and immediate feedback on residents' operative performance in animal lab. Surgical endoscopy, 35(7), 3370-3378.
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  The objective of this study was to examine the impact of an intensive laparoscopic training course incorporating structured assessment and immediate feedback on residents' operative performance in animal lab.
• Lee, A., Haddad, D., Rybin, D., Howell, C., Ghaderi, I., Berman, S., Zhou, W., & Tan, T. W. (2021). The impact of hemoglobin A on outcomes after lower extremity bypass. Journal of vascular surgery, 73(4), 1332-1339.e5.
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  Diabetes has been shown to be associated with increased risk of postoperative complications after lower extremity bypass (LEB), although it is unclear whether medium-term glucose control affects outcomes. This study aimed to assess the association of perioperative hemoglobin A (HbA) level on perioperative outcomes after LEB.
• Maegawa, F. B., Konstantinidis, I. T., Hsu, C., Ho, K. L., Ho, H., Ghaderi, I., Bartz-kurycki, M., & Ashouri, Y. (2021). Association Between Hospital Volume and Surgical Outcomes after Hepato-pancreato-biliary Surgery Among US Veterans: A Veterans Affairs Surgical Quality Improvement Program Analysis. Journal of the American College of Surgeons, 233(5), e108. doi:10.1016/j.jamcollsurg.2021.08.288
• Scarritt, T., Hsu, C. H., Maegawa, F. B., Ayala, A. E., Mobily, M., & Ghaderi, I. (2021). Trends in Utilization and Perioperative Outcomes in Robotic-assisted Bariatric surgery using the MBSAQIP database: A 4-Year Analysis. Obesity surgery, 31(2), 854-861.
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  Robotic-assisted surgery has become increasingly popular across surgical subspecialties. We aimed to analyze trends in the national utilization and outcomes in bariatric surgery.
• Galvani, C. A., Ghaderi, I., & Dhanabalsamy, N. (2020). Surgical Treatment of Obesity and the Metabolic Syndrome. DeckerMed Transitional Year Weekly Curriculum™. doi:10.2310/tywc.2066
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  Obesity and obesity-related comorbid conditions have been steadily increasing in the United States over the past few decades. Despite the availability of several anti-obesity measures such as diet, exercise, pharmacotherapy and behavioral modifications, bariatric surgery is the only effective modality that can provide a sustainable long-term weight loss and improve obesity-associated comorbidities. In this chapter, we discuss perioperative assessment and work-up of morbidly obese patients, minimally invasive approaches to various bariatric surgery procedures including laparoscopic adjustable gastric band, sleeve gastrectomy, gastric bypass and biliopancreatic diversion with duodenal switch, and their short and long term outcomes. We also address revisional bariatric surgery and use of robotic platform and other new procedures and their role in metabolic and bariatric surgery. This review contains 7 figures, 2 videos, 2 tables, and 110 references. Keywords: Obesity, comorbidities, metabolic surgery, bariatric surgery, gastric bypass, adjustable gastric band, sleeve gastrectomy, Biliopancreatic Diversion with Duodenal Switch, revisional surgery
• Galvani, C. A., Ghaderi, I., & Dhanabalsamy, N. (2020). Surgical Treatment of Obesity and the Metabolic Syndrome. Surgery. doi:10.2310/surg.2066
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  Obesity and obesity-related comorbid conditions have been steadily increasing in the United States over the past few decades. Despite the availability of several anti-obesity measures such as diet, exercise, pharmacotherapy and behavioral modifications, bariatric surgery is the only effective modality that can provide a sustainable long-term weight loss and improve obesity-associated comorbidities. In this chapter, we discuss perioperative assessment and work-up of morbidly obese patients, minimally invasive approaches to various bariatric surgery procedures including laparoscopic adjustable gastric band, sleeve gastrectomy, gastric bypass and biliopancreatic diversion with duodenal switch, and their short and long term outcomes. We also address revisional bariatric surgery and use of robotic platform and other new procedures and their role in metabolic and bariatric surgery. This review contains 7 figures, 2 videos, 2 tables, and 110 references. Keywords: Obesity, comorbidities, metabolic surgery, bariatric surgery, gastric bypass, adjustable gastric band, sleeve gastrectomy, Biliopancreatic Diversion with Duodenal Switch, revisional surgery
• Ghaderi, I., & Farrell, T. M. (2020). Toward effective feedback: From concept to practice.. Surgery, 167(4), 685-688. doi:10.1016/j.surg.2019.06.014
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  Feedback is the building block of assessment and an essential component of effective teaching. In this article, we will provide a comprehensive definition of feedback and a relevant conceptual framework for learning to explain how feedback can be used to improve performance. We will discuss the process of providing feedback, and the role teacher and learner can play to make it more effective. We will also examine the misunderstandings and pitfalls around feedback, as well as generational differences that may influence its impact.
• Ghaderi, I., Gabrysz-Forget, F., Bonds, M., Lovett, M., & Alseidi, A. (2020). Practicing on the advanced training in laparscopic Suturing curriculum ATLAS; is mastery learning in residency feasible to achieve expert level performance in laparoscopic suturing?. Journal of surgical education.
• Ghaderi, I., Gondal, A. B., Samame, J., Serrot, F., & Galvani, C. A. (2020). Preoperative Endoscopic and Radiologic Evaluation of Bariatric Patients: What Do They Add?. Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 24(4), 764-771. doi:10.1007/s11605-019-04219-8
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  Preoperative esophagogastroduodenoscopy (EGD) and barium swallow (BS) are commonly performed for evaluation in bariatric surgery patients. The routine use of these modalities has been controversial..A retrospective review of a prospectively maintained database was performed to include primary bariatric surgery patients between March 2013 and August 2016..Two hundred nine patients were included. All the patients underwent preoperative EGD and BS. The mean age was 43.12 years and BMI 46.4 kg/m2. Reflux symptoms were present in 58.5% of patients. Preoperative EGD revealed abnormalities in 87.5% of patients: esophagitis (54.5%), Barrett's esophagus (5.3%), dysplasia (1%), and gastritis (51%). Endoscopic evidence of HH was documented in 52.2% of patients while only 34% of patients had evidence of HH in their BS. Of the asymptomatic patients, 80.2% had abnormal EGD. Helicobacter pylori on biopsy was found in 17.2% patients, out of which 47.2% were asymptomatic. Based on EGD findings, the choice of surgical procedure was changed in 3.34% of patients. Repair of HH was performed in 107 patients, with 68.2% (n = 73) symptomatic patients and 31.8% (n = 34) asymptomatic patients. On ROC analysis, EGD was better predictive of the presence of HH (AUC = 0.802, OR 5.20, p = < 0.0001) and symptoms were a poor indicator for GERD..Preoperative EGD is abnormal in the majority of patients regardless of their symptoms. EGD is the only modality that can provide tissue sample, which can potentially determine the type of bariatric surgery. Given the low diagnostic accuracy of BS, its routine use can be eliminated.
• Ghaderi, I., Hsu, C. H., Hines, E. M., Alabagi, A., & Galvani, C. (2020). The impact of navigation grid overlay on performance of camera assistants during laparoscopic abdominal procedures; a randomized controlled trial. Journal of Surgical Education.
• Ghaderi, I., Hsu, C. H., White, M., Korovin, L. N., Hsu, C. H., Ghaderi, I., & Farrell, T. M. (2020). Surgeons' expertise during critical event in laparoscopic cholecystectomy: An expert-novice comparison using protocol analysis.. American journal of surgery, 219(2), 340-345. doi:10.1016/j.amjsurg.2018.12.024
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  The purpose of this study was to examine differences in thought processes between novice and experienced surgeons when they were presented with a critical situation during laparoscopic cholecystectomy..A group of experienced and novice surgeons were shown a recording of a laparoscopic cholecystectomy with an intraoperative bleeding event. The think-aloud method was used to capture surgeons' thought processes. Verbal reports were recorded, transcribed and analyzed using the protocol analysis method..Sixteen subjects (8 in each group) participated at two centers. Experienced surgeons demonstrated deeper comprehension of the operative field, richer mental image of future events and superior awareness of potentially dangerous situations. They also spent more time engaged in metacognitive activity..This study highlights the differences and similarities between surgeons with different levels of experience during a challenging intraoperative encounter. The domains of cognition and mental image as well as metacognition appear to be key elements of surgical expertise.
• Ghaderi, I., Korovin, L., & Farrell, T. M. (2020). Preparation for Challenging Cases: What differentiates expert from novice surgeons?. Journal of Surgical Education. doi:10.1016/j.jsurg.2020.08.019
• Ghaderi, I., Lee, A., Haddad, D., Rybin, D., Howell, C., Berman, S., Zhou, W., & Tan, T. W. (2020). The impact of hemaglobin on outcomes after lower extremity bypass. J Vasc Surgery.
• Mathis, R., Watanabe, Y., Ghaderi, I., & Nepomnayshy, D. (2020). What are the skills that represent expert-level laparoscopic suturing? A Delphi Study.. Surgical endoscopy, 34(3), 1318-1323. doi:10.1007/s00464-019-06904-w
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  As the field of laparoscopic surgery grows, the need for a valid assessment of laparoscopic surgical skills becomes apparent. The objective of this study was to identify laparoscopic suturing skills reflective of performing at an expert level..A Delphi Study was conducted with expert laparoscopic surgeons. Tasks were considered to meet criteria for consensus after 80% of survey participants answered "strongly agree." Results of the previous round of surveys were shared with participants at the start of the next round. The predefined endpoint for the Delphi was set as maximum of three rounds, reaching 80% consensus on each skill, or if > 50% of initial respondents fail to return for subsequent surveys..After three rounds of surveys completed by 13 advanced laparoscopic surgeons, 8 observed skills met consensus (> 80% selected "strongly agree"): forehand suturing, continuous suturing, avoiding tissue trauma, achieving a technically acceptable final product (tight closure), tying a secure knot at the end of suturing, maintaining/checking for appropriate tightness of running suture, accurate depth perception, and loading the needle in < 3 attempts. Skills that approached consensus (with > 50% ranking them as "strongly agree") included correct penetration of target tissue, ability to create a surgeon's knot, awareness of needle tip position, confined space suturing, following the curve of the needle, smooth movements of instruments, loading the needle correctly, adjusting for tissue thickness, and bimanual dexterity..Using Delphi methodology, we identified the skills that are representative of expert laparoscopic suturing. This information can be used to create an assessment tool for this domain. Validation of such a tool will help advance the surgical field towards true competency-based assessment of expertise.
• Tran, T., Samame, J., Ghaderi, I., Galvani, C. C., & Carton, M. M. (2020). The impact of intensive laparoscopic training course with structured assessment and immediate feedback on residents’ operative performance in animal lab. Surgical Endoscopy and Other Interventional Techniques, 35(7), 1-9. doi:10.1007/s00464-020-07778-z
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  The objective of this study was to examine the impact of an intensive laparoscopic training course incorporating structured assessment and immediate feedback on residents’ operative performance in animal lab. Surgical residents participated in a 2-day intensive laparoscopic training course. They performed the same procedures on two consecutive days on live pigs. Junior residents (PGY1-2) performed laparoscopic cholecystectomy and incisional hernia repair and the senior residents (PGY3-5) performed laparoscopic Nissen fundoplication, splenectomy, and low anterior colon resection. Assessment tools with proven validity evidence (global and procedure-specific rating tools for operative assessment of laparoscopic skills) were used to assess their operative performance. Faculty assessment and self-assessments were completed immediately after each procedure on both days. The Wilcoxon rank test was used to examine the effect of training on resident performance after one repetition. Forty surgical residents (20 junior and 20 senior residents) participated. There was a significant improvement in general laparoscopic skills during incisional hernia repair and Nissen fundoplication using global rating scales (p < 0.05). Moreover, there was an improvement in their performance during cholecystectomy, incisional hernia repair, and low anterior colectomy when procedure-specific skills assessments were used (p < 0.05). There was a positive correlation between residents’ self-reported confidences and their operative performance Trainees showed significant improvements in performance in general and procedure-specific laparoscopic skills in a wide range of procedures after an intensive training course. This study demonstrates the benefit of a structured training curriculum in improving operative performance in basic and advanced laparoscopic skills in a simulated environment. Future studies are needed to examine the duration of training required to achieve skill retention and competency.
• Ayala, A. E., Gondal, A. B., Hines, E. M., Mobily, M. E., & Ghaderi, I. (2019). Does the Hispanic Paradox Exist in Bariatric Surgery? Single Institutional Experience in the Southwestern US. Journal of The American College of Surgeons, 229(4), e67. doi:10.1016/j.jamcollsurg.2019.08.892
• Ghaderi, I., & Farrell, T. M. (2019). Toward effective feedback: From concept to practice. Surgery.
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  Feedback is the building block of assessment and an essential component of effective teaching. In this article, we will provide a comprehensive definition of feedback and a relevant conceptual framework for learning to explain how feedback can be used to improve performance. We will discuss the process of providing feedback, and the role teacher and learner can play to make it more effective. We will also examine the misunderstandings and pitfalls around feedback, as well as generational differences that may influence its impact.
• Ghaderi, I., Gondal, A. B., Samamé, J., Serrot, F., & Galvani, C. A. (2019). Preoperative Endoscopic and Radiologic Evaluation of Bariatric Patients: What Do They Add?. Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract.
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  Preoperative esophagogastroduodenoscopy (EGD) and barium swallow (BS) are commonly performed for evaluation in bariatric surgery patients. The routine use of these modalities has been controversial.
• Ghaderi, I., Hsu, C. H., Khoubyari, R., & Mobily, M. (2019). Development of a Bariatric Surgery Specific Risk Assessment Tool for Perioperative Myocardial Infarction. Surgery for Obesity and Related Diseases, 15(3), 462-8.
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  Expected to be published in 2019 - still awaiting final details.
• Gondal, A. B., Ayala, A. E., Hines, E. M., & Ghaderi, I. (2019). Prophylactic Inferior Vena Cava Filters Do Not Reduce Thromboembolism or Mortality for Gastric Bypass. Journal of The American College of Surgeons, 229(4), S28-S29. doi:10.1016/j.jamcollsurg.2019.08.078
• Gondal, A. B., Hines, E. M., Ayala, A. E., & Ghaderi, I. (2019). Trends in Use and Perioperative Outcomes in Robotic-Assisted Bariatric Surgery. Journal of The American College of Surgeons, 229(4), S30-S31. doi:10.1016/j.jamcollsurg.2019.08.082
• Gondal, A. B., Hines, E. M., Ayala, A. E., Chaudhary, S., & Ghaderi, I. (2019). Influence of Overlap Syndrome on Morbidity and Mortality after Bariatric Surgery. Journal of The American College of Surgeons, 229(4), S24-S25. doi:10.1016/j.jamcollsurg.2019.08.068
• Gondal, A. B., Hsu, C. H., Khoubyari, R., & Ghaderi, I. (2019). Development of a bariatric surgery specific risk assessment tool for perioperative myocardial infarction. Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery, 15(3), 462-468.
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  Perioperative myocardial infarction (PMI) is a feared complication after surgery. Bariatric surgery, due to its intraabdominal nature, is traditionally considered an intermediate risk procedure. However, there are limited data on MI rates and its predictors in patients undergoing bariatric surgery.
• Gondal, A. B., Hsu, C. H., Serrot, F., Rodriguez-Restrepo, A., Hurbon, A. N., Galvani, C., & Ghaderi, I. (2019). Enhanced Recovery in Bariatric Surgery: A Study of Short-Term Outcomes and Compliance. Obesity surgery, 29(2), 492-498.
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  The implementation of Enhanced Recovery After Surgery (ERAS) guidelines has been widely studied among various surgical specialties. We aimed at comparing the perioperative outcomes and compliance with ERAS protocol in bariatric surgery at our center.
• Gondal, A. B., Hsu, C. H., Zeeshan, M., Hamidi, M., Joseph, B., & Ghaderi, I. (2019). A frailty index and the impact of frailty on postoperative outcomes in older patients after bariatric surgery. Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery, 15(9), 1582-1588.
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  The prognostic value of frailty in the elderly surgical population has been well studied across surgical specialties. However, no studies have yet explored the effects of frailty across the full spectrum of adverse events after bariatric surgery.
• Korovin, L., Ericsson, K. A., White, M. L., Farrell, T. M., Galvani, C., & Ghaderi, I. (2019). Surgeons Expertise During Critical Event in Laparoscopic Cholecystectomy: An Expert-Novice Comparison Using Protocol Analysis. The American Journal of Surgery.
• Lee, A., Haddad, D. J., Hu, B., Zhou, W., Zhou, W., Berman, S., Ghaderi, I., & Tan, T. (2019). IP235. The Impact of Hemoglobin A1c on Outcomes After Lower Extremity Bypass. Journal of Vascular Surgery, 69(6), e174. doi:10.1016/j.jvs.2019.04.241
• Mathis, R., Watanabe, Y., Ghaderi, I., & Nepomnayshy, D. (2019). What are the skills that represent expert-level laparoscopic suturing? A Delphi Study. Surgical endoscopy, 18, 1-6.
  More info

  As the field of laparoscopic surgery grows, the need for a valid assessment of laparoscopic surgical skills becomes apparent. The objective of this study was to identify laparoscopic suturing skills reflective of performing at an expert level.
• Fu, S. S., Carton, M. M., Ghaderi, I., & Galvani, C. A. (2018). Robotic-Assisted Simultaneous Repair of Paraesophageal Hernia and Morgagni Hernia: Technical Report. Journal of laparoendoscopic & advanced surgical techniques. Part A, 28(6), 745-750.
  More info

  Morgagni hernias are a rare form of congenital diaphragmatic hernia, accounting for 2%-3% of cases. The presence of a simultaneous Morgagni hernia and paraesophageal hernia (PEH) is even more rare, with only a few reported cases in the surgical literature. Both open and laparoscopic surgical approaches have been previously described. Herein we discuss a robotic-assisted surgical approach to the repair of simultaneous Morgagni hernia and PEH in a 65-year-old woman. Simultaneous repair of Morgagni hernia and PEH is indicated mainly when symptoms are generally indistinctive. The use of robotic technology allowed for both hernias to be repaired both primarily and with mesh reinforcement.
• Ghaderi, I., Flanagan, E., Bhansali, S., & Farrell, T. M. (2018). Duplicated gallbladder with obstructive jaundice: a case report with video. Mini-invasive Surgery, 2(5), 13. doi:10.20517/2574-1225.2017.52
• Ghaderi, I., Gondal, A. B., Lopez, K., Dicochea, C., White, M., & Mobily, M. (2018). Factors Affecting Compliance Rate with Bariatric Surgery Program in Hispanic and Native American Communities- A Pilot Study. Surgery for Obesity and Related Diseases, 14(11), S196. doi:10.1016/j.soard.2018.09.491
• Ghaderi, I., Gondal, A., & Galvani, C. (2018). Reoperative Bariatric Surgery; Analysis of Indictations and Outcomes. Surgical Endoscopy, 32(1), 130-359.
• Ghaderi, I., Gondal, A., Khan, A., Gollapali, V., & Choudhury, N. (2018). Minimally Invasive Management of Gallstone Ileus Surgical Endoscopy. Surgical Endoscopy, 32(1), 130-359.
• Hsu, C. H., Ghaderi, I., Hsu, C. H., Gondal, A. B., & Ghaderi, I. (2018). Comparative Short-Term Safety of Laparoscopic Roux-en-Y Gastric Bypass vs Laparoscopic Sleeve Gastrectomy in Super Obese Patients. Journal of The American College of Surgeons, 227(4), S16-S17. doi:10.1016/j.jamcollsurg.2018.07.015
• Korovin, L. N., Farrell, T. M., Hsu, C. H., White, M., & Ghaderi, I. (2018). Surgeons' expertise during critical event in laparoscopic cholecystectomy: An expert-novice comparison using protocol analysis. American journal of surgery.
  More info

  The purpose of this study was to examine differences in thought processes between novice and experienced surgeons when they were presented with a critical situation during laparoscopic cholecystectomy.
• Tanoue, N., Korovin, L. N., Carton, M., Galvani, C. A., & Ghaderi, I. (2018). Faculty feedback versus residents' self-assessment of operative performance: Different but complementary. American journal of surgery, 215(2), 288-292.
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  Surgical training requires development of both technical and cognitive skills. The study analyzed feedback by faculty and residents' self-assessments during a laparoscopic training course to identify structure of feedback in this context and compared the focus of trainees to faculty.
• Bilgic, E., Watanabe, Y., Nepomnayshy, D., Gardner, A., Fitzgibbons, S., Ghaderi, I., Alseidi, A., Stefanidis, D., Paige, J., Seymour, N., McKendy, K. M., Birkett, R., Whitledge, J., Kane, E., Anton, N. E., & Vassiliou, M. C. (2017). Multicenter proficiency benchmarks for advanced laparoscopic suturing tasks. American journal of surgery, 213(2), 217-221.
  More info

  Advanced laparoscopic suturing (LS) tasks were developed based on a needs assessment. Initial validity evidence has been shown. The purpose of this multicenter study was to determine expert proficiency benchmarks for these tasks.
• Ghaderi, I., Fitzgibbons, S., Watanabe, Y., Lachapelle, A., & Paige, J. (2017). Surgical Skills Curricula In American College of Surgeons Accredited Education Institutes: An International Survey. American Journal of Surgery, 213(4)(Epub ahead of 2017), 678-686.
• Ghaderi, I., Fitzgibbons, S., Watanabe, Y., Lachapelle, A., Paige, J., & , A. f. (2017). Surgical skills curricula in American College of Surgeons Accredited Education Institutes: An international survey. American journal of surgery, 213(4), 678-686.
  More info

  A clear understanding of simulation-based curricula in use at American College of Surgeons Accredited Education Institutes (ACS-AEIs) is lacking.
• Ghaderi, I., Fu, M., Schwarz, E., Farrell, T. M., & Paige, J. (2017). SAGES Continuing Education Committee: SAGES framework for Continuing Professional Development (CPD) courses for practicing surgeons. Surgical Endoscopy.
• Ghaderi, I., Fu, M., Schwarz, E., Farrell, T. M., & Paige, J. (2017). SAGES framework for continuing professional Development (CPD) courses for practicing surgeons; the new SAGES course endorsement system. Surgical Endoscopy, 10, 3827.
• Ghaderi, I., Fu, M., Schwarz, E., Farrell, T. M., Paige, J., & , S. C. (2017). SAGES framework for Continuing Professional Development (CPD) courses for practicing surgeons: the new SAGES course endorsement system. Surgical endoscopy, 31(10), 3827-3835.
• Ghaderi, I., Park, Y. S., Ott, M., Juul, D., Harris, I. B., & Farrell, T. M. (2017). Response to "An Addition to the Technical Skills Assessment Toolbox".. Annals of surgery, 266(2), e37. doi:10.1097/sla.0000000000001430
• Watanabe, Y., Madani, A., Bilgic, E., McKendy, K. M., Enani, G., Ghaderi, I., Fried, G. M., Feldman, L. S., & Vassiliou, M. C. (2017). Don't fix it if it isn't broken: a survey of preparedness for practice among graduates of Fellowship Council-accredited fellowships. Surgical endoscopy, 31(5), 2287-2298.
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  General surgery residency may not adequately prepare residents for independent practice. It is unclear; however, if non-ACGME-accredited fellowships are better meeting training needs. The purpose of this mixed-method study was to determine perceived preparedness for practice and to identify gaps in fellowship training.
• Farrell, T. M., Ghaderi, I., McPhail, L. E., Alger, A. R., Meyers, M. O., & Meyer, A. A. (2016). Measuring Patterns of Surgeon Confidence Using a Novel Assessment Tool. The American surgeon, 82(1), 28-35.
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  Confidence should increase during surgical training and practice. However, few data exist regarding confidence of surgeons across this continuum. Confidence may develop differently in clinical and personal domains, or may erode as specialization or age restricts practice. A reliable scale of confidence is needed to track this competency. A novel survey was distributed to surgeons in private and academic settings. One hundred and thirty-four respondents completed this cross-sectional survey. Surgeons reported anticipated reactions to clinical scenarios within three patient care domains (acute inpatient, nonacute inpatient, and outpatient) and in personal spheres. Confidence scores were plotted against years of experience. Curves of best fit were generated and trends assessed. A subgroup completed a second survey after four years to assess the survey's reliability over time. During residency, there is steep improvement in confidence reported by surgeons in all clinical domains, with further increase for inpatient domains during transition into practice. Confidence in personal spheres also increases quickly during residency and thereafter. The surgeon confidence scale captures the expected acquisition of confidence during early surgical experience, and will have value in following trends in surgeon confidence as training and practice patterns change.
• Flanagan, E., Ghaderi, I., Overby, D. W., & Farrell, T. M. (2016). Reduced Survival in Bariatric Surgery Candidates Delayed or Denied by Lack of Insurance Approval. The American surgeon, 82(2), 166-70.
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  Bariatric surgery reduces mortality for Americans who meet candidacy criteria and have insurance coverage. Unfortunately, some medically suitable candidates are denied or delayed during insurance approval processes. The long-term impact of such care delays on survival is unknown. Using a prospectively maintained bariatric intake database, we identified consecutive applicants who were evaluated and medically cleared by our multidisciplinary care team and for whom insurance approval was requested. We compared survival in those who were initially approved by their insurance carriers (controls) and those who were initially denied coverage (subjects). Mortality was determined using the Social Security Death Index. Kaplan-Meier survival curves were plotted and the log-rank test for significance was applied. From August 2003 to December 2008, 463 patients (391 females, mean age 45 ± 10 years, mean body mass index 52.5 ± 9.4 kg/m(2)) were medically cleared for a bariatric procedure. Of these, 363 were approved by insurance on initial request, whereas 100 were denied. Given the study's intention to measure the aggregate impact of delays and denials, nine patients who later came to operation after appeal or coverage change were maintained in the subject cohort. During 0- to 113-month follow-up, six subjects (6%) died compared with seven controls (1.9%), corresponding to a statistically significant survival benefit for patients initially approved for bariatric surgery without delay or denial (P < 0.001). In conclusion, access to bariatric surgical care was impeded by insurance certification processes in 22 per cent of medically acceptable candidates. Processes that delay or restrict efficient access to bariatric surgery are associated with a 3-fold mortality increase.
• Galvani, C. A., Loebl, H., Osuchukwu, O., Samamé, J., Apel, M. E., & Ghaderi, I. (2016). Robotic-Assisted Paraesophageal Hernia Repair: Initial Experience at a Single Institution. Journal of laparoendoscopic & advanced surgical techniques. Part A, 26(4), 290-5.
  More info

  Laparoscopic surgery is considered the standard approach for the treatment of paraesophageal hernias (PEHs). Despite its advantages, this approach is technically demanding with a significant learning curve. Data about the safety and utility of the robotically assisted paraesophageal hernia repair (RA-PEHR) are scarce. The aim of this study is to assess the feasibility and safety of robotic assistance for the treatment of PEH.
• Ghaderi, I., Fitzgibbons, S., Watanabe, Y., Lachapelle, A. S., & Paige, J. T. (2015). Surgical skills curricula in American College of Surgeons Accredited Education Institutes. Journal of The American College of Surgeons, 221(4), e76. doi:10.1016/j.jamcollsurg.2015.08.099
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  Successful integration of military tactical requirements into a civilian training paradigm: Advanced Trauma Life Support Operational Emphasis (ATLS-OE) Travis M Polk, MD, FACS, Zsolt T Stockinger, MD, FACS, Matthew J Martin, MD, FACS, Kirby R Gross, MD, FACS, Jeffrey A Bailey, MD, FACS Naval Medical Center Portsmouth, Portsmouth, VA; Joint Trauma System, San Antonio, TX; Madigan Army Medical Center, Tacoma, WA

Presentations

• Ghaderi, I., Rahimi, A. O., King, R., Hsu, C., & Ashouri, Y. (2023, May /Spring). How Gender, Race/Ethnicity, and Procedure Type Affect Postoperative Complications in Bariatric Surgery Patients: A 7-Year Analysis of Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) Database (2015 – 2021). The University of Arizona, Department of Surgery Research Symposium. Tucson, AZ: The University of Arizona, Department of Surgery.
• Rahimi, A. O., Gasper, D., Chang, M. J., Ho, K., Ashouri, Y., Hsu, C., & Ghaderi, I. (2023, May / Spring).

  Development of a rating scale to assess robotic surgery curriculum using Kern’s six-step approach to curricular design

  . The University of Arizona, Department of Surgery Research Symposium. Tucson, AZ: The University of Arizona, Department of Surgery.
• Ajmal, S., Hsu, C., Ghaderi, I., Ho, K., & Ashouri, Y. (2022, June). The Impact of COVID-19 Pandemic on Access to Bariatric Surgery. ASMBS Annual Meeting 2022. Dallas: American Society for Metabolic and Bariatric Surgery (ASMBS).
• Ghaderi, I., Ho, H., Ho, K., Maegawa, F., Marisa, B., Ashouri, Y., & Hsu, C. (2021, October/Fall).

  Safety Of Robotic Bariatric Surgery In Older Adults: A 5-year Analysis Of The Metabolic And Bariatric Surgery Accreditation And Quality Improvement Program (MBSAQIP) Database

  . American College of SurgeonsAmerican College of Surgeons.
• Ghaderi, I., Gondal, A. B., Ayala, A., & Hines, E. (2019, Oct / Fall). Prophylactic Inferior Cava Filters Do Not Reduce Thromboembolism or Mortality for Gastric Bypass. ACS Clinical Congress 2019. San Francisco, CA: ACS.
• Ghaderi, I., Gondal, A. B., Hines, E., Ayala, A., & Chaudhary, S. (2019, Oct / Fall). Influence of Overlap Syndrome on Morbidity and MOrtality after Bariatric Surgery. ACS Annual Clinical Congress 2019. San Francisco, CA: ACS.
• Ghaderi, I., Gondal, A., Ayala, A., & Hines, E. (2019, Oct / Fall). Trends in Utilization and Perioperative Outcomes in Robotic-Assisted Bariatric Surgery. ACS Annual Clinical Congress 2019. San Francisco, CA: ACS.
• Ghaderi, I., Korovin, L., Hsu, C. H., White, M., & Farrell, T. (2019, Aug / Summer). Surgeons Expertise in Difficult Laparoscopic Cholecystectomy: An Expert Novice Comparison Using Think Aloud Method. MHPE Annual Conference 2019. Chicago, IL: UIC College of Medicine.
• Ghaderi, I. (2018, May / Spring). A Use of Think Aloud Method to Assess Competency. ASE Surgical Education Week. Austin, TX: Association of Surgical Education.
• Ghaderi, I., Gondal, A., Hsu, C. H., & Mobily, M. (2018, November / Fall). How safe are Lap Sleeve Gastrectomy and Lap Roux-en-Y Gastric Bypass in super Obese Patients? In investigation.... ASMBS - Annual Obesity Week. Nashville, TN: ASMBS.
• Ghaderi, I., Gondal, A., Hsu, C. H., Zeeshan, M., Hamidi, M., & Joseph, B. (2018, October / Fall). Comparative Short-term safe of Laparoscopic Roux-en-Y Gastric ByPass vs. Lap Sleeve Gastrectomy. American College of Surgeons Clinical Congress. Boston, MA: American College of Surgeons.
• Ghaderi, I., Gondal, A., Hsu, C. H., Zeeshan, M., Hamidi, M., & Joseph, B. (2018, October / Fall). Uses of Modified Frailty Index to Predict Postop Complication Rates After Bariatric Surgery;. American College of Surgeons Clinical Congress. Boston, MA: American College of Surgeons.
• Ghaderi, I., Gondal, A., Korovin, L., White, M. L., & Farrell, T. N. (2018, May / Spring). Preparation for Challenging Cases: What Differentiates Expert Surgeons from Novices?. ASE 2018 Surgical Education Week. Austin, TX: Association of Surgical Education.
• Ghaderi, I., Gondal, A., Lopez, K., Dicochea, C., & White, M. L. (2018, May / Spring). Factors Affecting Compliance Rate with Bariatric Surgery Program in Hispanic and Native American Communities. University of Arizona Research Symposium. Tucson, AZ: Department of Surgery, College of Medicine, University of Arizona.
• Ghaderi, I., Hsu, C. H., Khoubyari, R., & Mobily, M. (2018, November / Fall). Development of a Bariatric Surgery Specific Scoring System for Screening Patients at Risk for Perioperative Myocardial Infarction. ASMBS Annual Obesity Week. Nashville, TN: ASMBS.
• Ghaderi, I., Korvin, L., Hsu, C. H., White, M., & Farrell, T. (2018, May / Spring). Surgeons Expertise in Laparoscopic Cholecystectomy; An Expert Novice Comparison Using Think Aloud Method. ASE Surgical Education Week. Austin, TX: Association of Surgical Education.
• Ghaderi, I., Dort, J., Abdelfattah, K., McKendy, K., & Scott, D. (2017, April). An Introduction to Teaching in the OR Using the Briefing Intra-operative Teaching Debriefing BID Model. Surgical Education Week. San Diego, CA: Association of Surgical Education.
• Ghaderi, I., Serrot, F., Fu, S., & Galvani, C. (2017, October 2017). The Impact of Enhanced Recovery After Surgery (ERAS) Program on Short Term Outcomes after Bariatric Surgery for Obesity and Related Diseases. ACS Clinical Congress. San Diego, CA.
• Ghaderi, I. (2016, December). Surgeon's Expertise in Laparoscopic Cholecystectomy; An Expert Novice comparison of Cognitive Process Using Protocol Analysis. Research Psychology Grand Rounds. Tallahassee, FL: Florida State University.
• Ghaderi, I., Lee, H., Singh, P., Razjouyan, J., Galvani, C., & Najafi, B. N. (2016, April). Impact of Structured Intensive Laparoscopic Training Course on Resident's Operative Performance and Their Stress Level in Animal Lab. Surgical Education Week. Boston, MA: Association of Surgical Education.
• Ghaderi, I., Watanabe, Y., Nepomnayshy, D., Gardner, A. K., Fitzgibbons, S. C., Alseidi, A., Stefanidis, D., Paige, J. T., Seymour, N., McKendy, K. M., Bilgic, E., Deal, S., & Vassiliou, M. C. (2016, Arpil). Multicenter Proficiency Benchmarks for an Advanced Laparoscopic Surgery Curriculum. Surgical Education Week. Boston, MA: Association of Surgical Education.

Poster Presentations

• Katherine, H., Hsu, C., Ashouri, Y., Karasek, L., Ajmal, S., & Ghaderi, I. (2022, June/Summer). How Robotic Approach Changes the Impact of First Assistant on Operative Time in Bariatric Surgery: A 4 Year Analysis of MBSAQIP Database 2016-2019. ASMBS Annual Meeting 2022. Dallas, TX: American Society for Metabolic and Bariatric Surgery (ASMBS).
• Katherine, H., Hsu, C., Ashouri, Y., Laura, K., Ajmal, S., & Ghaderi, I. (2022, June/Summer). How Robotic Approach Changes the Impact of First Assistant on Operative Time in Bariatric Surgery: A 4 Year Analysis of MBSAQIP Database 2016-2019. ASMBS Annual Meeting. Dallas, TX: American Society for Metabolic and Bariatric Surgery (ASMBS).
• Ghaderi, I., Ayala, A. E., Gondal, A. B., Hines, E., & Mobily, M. (2019, Oct / Fall). Does the Hispanic Paradox Exist in Bariatric Surgery? A single institutional experience in Southwestern US. American College of Surgeons Clinical Congress 2019. San Francisco, CA: ACS.
• Ghaderi, I., Gondal, A. B., & Mobily, M. (2019, Apr / Spring). Geriatric Robotic assisted Bariatric Surgery: How do sleeve gastrectomy and Roux-en-Y Gastric Bypass Compare..... SAGES 2019 Annual Meeting.
• Ghaderi, I., Gondal, A. B., & Mobily, M. (2019, Apr / Spring). The Impact of Low Preoperative Albumin on Short-term Outcomes after Bariatric Surgery. SAGES 2019 Annual Meeting.
• Ghaderi, I. (2018, 4/2018). Reoperative Bariatric Surgery; Analysis of Indications and Outcomes; A Single Center Experience. World Congress Endoscopic Surgery / SAGES & CAGS. Seattle, WA: SAGES & CAGS.
  More info

  This is for an iposter presentation at the 16th World congress of Endoscopic Surgery
• Ghaderi, I. (2018, 4/2018). Smartphones as Telementoring Tools for Training in the Fundamentals of Laparoscopic Surgery FLS Skills. World Congress of Endoscopic Surgery / SAGES & CAGS. Seattle, WA: SAGES & CAGS.
  More info

  This is for an iposter presentation at the 16th World Congress of Endoscopic Surgery
• Ghaderi, I., Gondal, A., Hsu, C. H., Zeeshan, M., Hamidi, K., & Joseph, B. (2018, October / Fall). Metabolic syndrome and Short-term Postop Complications in Bariatric Surgery. ACS Clinical Congress. Boston, MA: American College of Surgeons.
• Ghaderi, I., Cahir, T. M., Gondal, A., Biffar, D., & Hamilton, A. (2017, November). Smartphones As Telementoring Tools for Training in the Fundamentals of Laparoscopic Surgery (FLS) Skills. UA Jurior Investigator Poster Forum. Tucson, AZ: University of Arizona.
• Ghaderi, I., Gondal, A., Korovin, L., & White, M. (2017, November). Preparation for Challenging Cases: What Differentiates Expert Surgeons from Novices?. UA Junior Investigator Poster Forum. Tucson, AZ: University of Arizona.
• Ghaderi, I., Gondal, A., Serrot, F., & Galvani, C. (2017, November). The Impact of Enhanced Recovery After Surgery (ERAS) Program on short term outcomes after Bariatric Surgery. UA Junior Investigator Poster Forum. Tucson, AZ: University of Arizona.
• Ghaderi, I., Korovin, L. N., Erickson, K. A., White, M. L., Farrell, T. M., & Galvani, C. (2017, November). Surgeons' Expertise During Critical Event in Laparoscopic Cholecystectomy. UA Junior Investigator Forum. Tucson, AZ: University of Arizona.
• Ghaderi, I., Tran, T., Samame, J., Ibrahim, R., Loebl, H., & Galvani, C. (2016, March). The Impact of Structured Intensive Laparoscopic Training Course in residents Operative Performance in Animal Lab. SAGES 2016; Society of American Gastrointestinal and Endoscopic Surgeons. Boston, MA: SAGES.
• Ghaderi, I. (2009, September). Evaluation of surgical performance during laparoscopic incisional hernia repair. Annual Meeting Canadian Association of General Surgeons. Victoria, BC, Canada: Canadian Association of General Surgeons.
• Ghaderi, I., & Fleiszer, D. M. (2004, May). Variation in Medical Record Documentation in the Breast Clinic. Annual Fraser Gurd Day. Montreal, Canada: Univeristy of Montreal.
• Ghaderi, I., & Vaillancourt, M. (2010, April). Measuring performance using the GOALS Incisional Hernia Module. 12th World Congress of Endoscopic Surgery. National Harbor, MD: World Association for Endoscopic Surgery.
• Ghaderi, I., Fakhrejahani, E., Kaviani, A., & Mehrdad, N. (2002, March). Iranian Woman's Beliefs toward Breast Cancer; a Qualitative Study. 3rd European Breast Cancer Conference. Barcelona, Spain: European Breast Conference.
• Ghaderi, I., Fitzgibbons, S., Watanabe, Y., Lachapelle, A., & Paige, J. (2015, October). Surgical Skills curricula in ACS Accredited Education Institutes. The ACS Clinical Congress. Chicago, IL: American College of Surgeons.
• Ghaderi, I., Galvani, C. A., Samame, J., & Takla, H. (2015, November). Preoperative Endoscopic and Radiologic Evaluation of Bariatric Patients; What do they add?. Obesity Week. Los Angeles, CA: ASMBS.
• Ghaderi, I., Kaviani, A., Mehrdad, N., Karbakhsh, M., Ebrahimi, M., & Hashemi, E. (2002, March). Physicians Don't See Eye to Eye with Each Other on the Feature of the Psychosocial Support. 3rd European Breast Cancer Conference. Barcelona, Spain: European Breast Cancer Conference.
• Ghaderi, I., Madani, A., deGara, C., & Schlachta, C. M. (2010, September). Canadian General Surgeons Opinion About Clinical Practice Audit Preliminary Data. Canadian Association of General Surgeons. Quebec City, Canada: Association of General Surgeons in Canada.
• Ghaderi, I., Park, Y., Auvergne, L., & Farrell, T. M. (2014, April). Assessment of Performance during Advanced Laparoscopic Fellowship - A single Subject Design. Surgical Spring Week. Salt Lake City, UT: SAGES.
• Ghaderi, I., Park, Y., Juul, D., Farrell, T. M., & Harris, I. (2013, April). Technical Skills Assessment Toolbox; A Review Using the Unitary Validity Framework. Surgical Education Week. Orlando, FL: ASE - Association Surgical Education.
• Ghaderi, I., Samame, J., Takla, H. M., Ibrahim, R. M., Serrot, F., & Galvani, C. A. (2015, September). The Validity of Centers of Excellence for Metabolic and Bariatric Surgery Process for a Non-Accredited Center. ASMBS Obesity Week. Los Angeles, CA: ASMBS.

Creative Productions

• Ghaderi, I. (2018. Minimally Invasive Management of Gallstone Ileus. World Congress of Endoscopic Surgery/SAGES & CAGS. Seattle, WA: SAGES & CAGS.
• Ghaderi, I. (2017. Laparoscopic Management of Small Bowel Volvulus with Extensive Bowel Necrosis. Annual Surgical Meeting. Scottsdale, AZ: Western Surgical Association.
• Ghaderi, I. (2017. Slipped Gastric Bank with Organo-Axial Volvulus of Stomach. Surgical Association Annual Meeting. Scottsdale, AZ: Western Surgical Association.
• Ghaderi, I. (2016. Robotic Assisted Recurrent Hiatal Hernia Repair; takedown of Nissen Fundoplication and Conversion to Roux en Y. SAGES Annual Meeting. Boston, MA: SAGES Society of American Gastrointestinal and Endoscopic Surgeons.
• Ghaderi, I. (2016. Robotic assisted Repair of a Giant Paraesophageal Hiatal Hernia in a Patient with Scoliosis. SAGES Annual Meeting. Boston, MA.
• Ghaderi, I., Mcclenathan, J., & Aziz, H. (2016. De Garengeot's Hernia. Video Presentation. Washington, DC: American College of Surgeons - Annual Meeting.
• Ghaderi, I. (2015. Laparoscopic Robotic assisted Roux en Y Gastric Bypass ina Patient with an Incidental Left Paraduodenal Hernia. American College of Surgeons Clinical Congress. Chicago, IL.
• Ghaderi, I. (2015. Robotic Assisted Laparoscopic Redo Hiatal Hernia Repair with Nissen Fundoplication. ACS Clinical Congress Meeting 2015. Chicago, IL: American College of Surgeons.
• Ghaderi, I., Bhansali, S., Flannagan, E., & Farrell, T. M. (2013. A Duplicated Gallbladder with Obstructive Jaundice; A Case report with Video. Report with Video. Washington, DC: American College of Surgeons Clinical Congress.

Case Studies

• Ghaderi, I. (2004. Toward Excellence as the Standard for Medical Practice(pp Thesis Dissertation).
  More info

  Supervised by Dr. David Fleiszer
• Ghaderi, I., & Shirvani, F. (2001. Diagnostic Approach to Abdominal Pain in Children and It's Management(pp Tehran, Iran).
  More info

  Tehran, Iran

Others

• Ghaderi, I., Gondal, A. B., Mobily, M., & Hines, E. (2019, Apr). A Rare Finding During Sleeve Gastrectomy: Concurrent repair of diaphragmatic hernia during sleeve gastrectomy and hiatel hernia repair. SAGES 2019 Annual Meeting.
• Ghaderi, I., Mobily, M., Gondal, A. B., & Motlagh, M. (2019, April). Spegelian Hernia: An uncommon cause of a common complaint. SAGES 2019 Annual Annual Meeting.
• Ghaderi, I., Cahir, T., Gondal, A., Biffar, D., & Hamilton, A. (2018, April / Spring). Smartphones as Telementoring Tools for Training in the Fundamentals of Laparoscopic Surgery. Surgical Endoscopy.
• Ghaderi, I., Flanagan, E., Bhansali, S., & Farrell, T. M. (2018, May). Duplicated Gallbladder with Obstructive Jaundice: a case report with video. Minimally Invasive Surgery.
• Ghaderi, I. (2015, July). Surgeons Expertise in Laparoscopic Cholecystectomy; An Expert Novice Comparison. IRBS Human Subjects # 1601346448.
  More info

  Dr. Ghaderi is principal investigator
• Ghaderi, I. (2017, July). The Impact of Navigation Grid and Pointer on Focusing of Instruments During Laparoscopic Surgery (Image1 Spies). IRBS Human Subjects # 1702183854.
  More info

  Dr. Ghaderi is principal investigator