Christian O Twiss

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Courses

Scholarly Contributions

Chapters

• Michalak, J. R., Kim, S., Kim, S., Funk, J., Twiss, C. O., & Twiss, C. O. (2018). Sacral Neuromodulation for Overactive Bladder. In Neuromodulation. Springer, Cham. doi:10.1007/978-3-319-73266-4_3
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  Overactive bladder (OAB) is a urologic condition that negatively impacts quality of life. Sacral neuromodulation (SNM) is a safe and effective treatment option that has been studied extensively in patients with severe and refractory OAB. SNM significantly reduces urgency, frequency, and incontinence while also improving quality of life. Although SNM is not currently indicated for the treatment of OAB symptoms due to neurologic disease, recent literature suggests that these patients may also benefit from SNM. Other areas requiring further investigation include reduction of adverse events associated with SNM and the overall cost benefit ratio of SNM.
• Funk, J., Twiss, C. O., Michalak, J., & Kim, S. (2017). Surgical Techniques for Interstim Placement. In Adult and Pediatric Neuromodulation. Springer International.
• Kim, S., Funk, J., Twiss, C. O., & Michalak, J. R. (2017). Sacral Neuromodulation for Overactive Bladder.. In Adult and Pediatric Neuromodulation.
• Twiss, C. O., Funk, J., Kim, S., & Michalak, J. (2017). Sacral Neuromodulation for Overactive Bladder. In Adult and Pediatric Neuromodulation. Springer International.
• Twiss, C. O., Raz, S., & Triaca, V. (2012). Bulbocavernosus Muscle and Fat Pad Supplement. In Hinman's Atlas of Urologic Surgery, 3rd Ed.. Elsevier Saunders.
• Twiss, C. O., & Rosenblum, N. (2008). Chapter 76 – PERINEAL HERNIA AND PERINEOCELE. In Female Urology. doi:10.1016/B978-1-4160-2339-5.50125-7
• Twiss, C. O., & Rosenblum, N. (2008). Perineal Hernia and Perineocele. In Female Urology, 3rd Ed.. Saunders Press.
• Twiss, C. O., Triaca, V., Konijeti, R., & Raz, S. (2008). Reconstructive surgery for pelvic floor relaxation. In Reconstructive Urologic Surgery. CRC Press. doi:10.3109/9780203091487-66
• Twiss, C. O., Triaca, V., Konijeti, R., & Raz, S. (2008). Surgery for Pelvic Floor Relaxation. In Textbook of Reconstructive Urologic Surgery. Informa Press.

Journals/Publications

• Rust, J., Seaman, J. A., & Twiss, C. O. (2023). Modified Martius Flap Urethroplasty: A New Technique. Videourology, 37(1). doi:https://doi.org/10.1089/vid.2023.0013
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  New technique of femal urethroplasty
• Patel, S., Chaus, F. M., Funk, J. T., & Twiss, C. O. (2022). Total Autologous Fascia Lata Sacrocolpopexy for Treatment of Pelvic Organ Prolapse: Experience in Thirty-Four Patients. Urology, 170, 73-77.
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  To develop a technique for open/robotic sacrocolpopexy using autologous fascia lata autograft. We report our experience in our first 34 patients.
• Zeng, J., Bergersen, A., Price, E., Callegari, M., Austin, E., Oduyemi, O., Poling, K., Hsu, C. H., Funk, J., & Twiss, C. (2022). Symptom Resolution and Recurrent Urinary Incontinence Following Removal of Painful Midurethral Slings. Urology, 159, 78-82.
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  To evaluate pain improvement and recurrent stress incontinence (SUI) following painful synthetic midurethral sling (MUS) removal.
• Bergersen, A., Price, E., Callegari, M., Austin, E., Oduyemi, O., Hsu, C. H., Funk, J. T., & Twiss, C. O. (2021). Pain Resolution and Recurrent Prolapse Rates Following Vaginal Mesh Removal. Urology, 150, 134-138.
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  To evaluate pain resolution and recurrent prolapse following removal of painful pelvic organ prolapse (POP) mesh.
• Chaus, F., Chaus*, F., Funk, J., Twiss, C. O., & Twiss, C. O. (2020). V07-03 TRANSGENDER NEOVAGINA SACROCOLPOPEXY WITH AUTOLOGOUS FASCIA LATA. The Journal of Urology, 203, e643-e644. doi:10.1097/ju.0000000000000897.03
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  INTRODUCTION AND OBJECTIVE:With the increasing prevalence of gender-affirming surgeries, management of the long-term complications of these surgeries is an important topic. One complication is prol...
• Lwin, A. A., Zeng, J., Evans, P., Phung, M. C., Hynes, K. A., Price, E. T., Twiss, C. O., Tzou, D. T., & Funk, J. T. (2020). Holmium Laser Enucleation of the Prostate is Safe and Feasible as a Same Day Surgery. Urology.
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  To assess the safety, feasibility and treatment outcomes of Holmium Laser Enucleation of the Prostate (HoLEP) as a same day surgery (SDS).
• Twiss, C. O. (2020). Developed by the Joint Writing Group of the American Urogynecologic Society and the International Urogynecological Association. Joint position statement on the management of mesh-related complications for the FPMRS specia. Int Urogynecology Journal. doi:10.1007/s00192 020-04248-x
• Twiss, C. O. (2020). Joint position statement on the management of mesh-related complications for the FPMRS specialist. International urogynecology journal, 31(4), 679-694.
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  The scientific approach to categorizing mesh complications and optimal methods to address them have been complicated by the rapid proliferation and evolution of materials and techniques that have been used over the past 20 years in surgical treatment of pelvic floor disorders. In addition, terminology used to diagnose and categorize mesh complications and the descriptions of surgical procedures to manage them have been adopted inconsistently, further hampering the development of a collective experience with a standardized lexicon. Finally, much of the high-quality data on management of mesh complications is based on materials that are rarely used or not commercially available today.Women experiencing mesh complications need to be heard and should have access to resources and providers who are most able to help. Many women require multiple procedures to address their mesh complications, and for some of these patients, relief is incomplete. We should strive to optimize the treatment at the initial diagnosis of a mesh-related complication.This Position Statement has 4 goals:1. Using the best and most relevant evidence available, provide guidance for the FPMRS subspecialist caring for patients who may be experiencing mesh complications2: Provide an algorithm outlining treatment choices for patients with mesh-related complications that can be used as a platform for shared decision making in the treatment of these complications3: Identify and prioritize gaps in evidence concerning specific mesh complications and their treatments4: Identify provider and health facility characteristics that may optimize the outcomes of treatments for these complications.
• Twiss, C. O. (2020). Pain Resolution and Recurrent Prolapse Rates Following Vaginal Mesh Removal. Urology. doi:doi: 10.1016/j.urology.2020.06.057
• Twiss, C. O. (2020). Total Autologous Fascia Lata Anterior and Apical Pelvic Organ Prolapse Repair: A New Technique and Initial Experience. Journal of Urology. doi:10.1016/j.urology.2019.12.015
• Bergersen, A., Hinkel, C., Funk, J., & Twiss, C. O. (2019). Management of Vaginal Mesh Exposure: A Systematic Review. Arab Journal of Urology.
• Bergersen, A., Hinkel, C., Funk, J., & Twiss, C. O. (2019). Management of vaginal mesh exposure: A systematic review. Arab journal of urology, 17(1), 40-48.
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  : To identify various predisposing factors, the clinical presentation, and the management of vaginal mesh-related complications, with special emphasis on mesh exposure and the indications for and results of vaginal mesh removal. : A systematic literature review was performed using a search strategy based on the Preferred Reporting Items for Systematic Reviews and Meta-analyses criteria. PubMed was queried for studies regarding aetiology, risk factors, and management of vaginal mesh exposure from 1 January 2008 to June 2018. Full-text articles were obtained for eligible abstracts. Relevant articles were included, and the cited references were used to identify relevant articles not previously included. : A total of 102 abstracts were identified from the PubMed search criteria. An additional 45 studies were identified based on review of the cited references. After applying eligibility criteria and excluding impertinent articles, 58 studies were included in the final analysis. : Numerous studies have found at least some degree of symptomatic improvement regardless of the amount of mesh removed. Focal areas of exposure or pain can be successfully managed with partial mesh removal with low rates of complications. With partial mesh removal, many patients will ultimately require subsequent mesh removal procedures. For this reason, complete mesh excision is an alternative for patients with diffuse vaginal pain, large mesh exposure, and extrusion of mesh into adjacent viscera. However, when considering complete mesh removal, it is important to counsel patients regarding possible complications of removal and the increased risk of recurrent stress urinary incontinence and pelvic organ prolapse postoperatively. : MUS: midurethral sling; OR: odds ratio; POP: pelvic organ prolapse; PRISMA: Preferred Reporting Items for Systematic Reviews and Meta-analyses; SUI: stress urinary incontinence; TOT: transobturator; TVT: tension-free vaginal tape.
• Chaus, F. M., Funk, J. T., Pangilinan, J., Lin, F. C., & Twiss, C. O. (2019). Total Autologous Fascia Lata Anterior and Apical Pelvic Organ Prolapse Repair: A New Technique and Initial Experience. Urology.
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  To address renewed interest in nonmesh transvaginal Pelvic Organ Prolapse (POP) repair since the FDA reclassification of transvaginal mesh, our goal was to develop a transvaginal sacrospinous fixation for anterior and apical POP using only autologous fascia lata. We report our experience in 33 patients.
• Kim, S., Pollock, G., Twiss, C. O., & Funk, J. (2019). Surgery for Posterior Compartment Vaginal Prolapse: Graft Augmented Repair.. Urol Clin North Am.. doi:10.1016/j.ucl.2018.08.015
• Pollock, G. R., Twiss, C. O., Chartier, S., Vedantham, S., Funk, J., & Arif Tiwari, H. (2019). Comparison of magnetic resonance defecography grading with POP-Q staging and Baden-Walker grading in the evaluation of female pelvic organ prolapse. Abdominal radiology (New York).
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  The physical examination and pelvic imaging with MRI are often used in the pre-operative evaluation of pelvic organ prolapse. The objective of this study was to compare grading of prolapse on defecography phase of dynamic magnetic resonance imaging (dMRI) with physical examination (PE) grading using both the Pelvic Organ Prolapse Quantification (POP-Q) staging and Baden-Walker (BW) grading systems in the evaluation of pelvic organ prolapse (POP).
• Vedantham, S., Twiss, C. O., Tiwari, H. A., Pollock, G. R., Funk, J., & Chartier, S. (2021). Comparison of magnetic resonance defecography grading with POP-Q staging and Baden-Walker grading in the evaluation of female pelvic organ prolapse.. Abdominal radiology (New York), 1-8. doi:10.1007/s00261-019-02313-8
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  The physical examination and pelvic imaging with MRI are often used in the pre-operative evaluation of pelvic organ prolapse. The objective of this study was to compare grading of prolapse on defecography phase of dynamic magnetic resonance imaging (dMRI) with physical examination (PE) grading using both the Pelvic Organ Prolapse Quantification (POP-Q) staging and Baden-Walker (BW) grading systems in the evaluation of pelvic organ prolapse (POP)..We retrospectively reviewed the charts of 170 patients who underwent dMRI at our institution. BW grading and POP-Q staging were collected for anterior, apical, and posterior compartments, along with absolute dMRI values and overall grading of dMRI. For the overall grading/staging from dMRI, BW, and POP-Q, Spearman rho (ρ) was used to assess the correlation. The correlations between dMRI grading and POP-Q staging were compared to the correlations between dMRI grading and BW grading using Fisher's Z transformation..A total of 54 patients were included. dMRI grading was not significantly correlated with BW grading for anterior, apical, and posterior compartment prolapse (p > 0.15). However, overall dMRI grading demonstrated a significant (p = 0.025) and positive correlation (ρ = 0.305) with the POP-Q staging system. dMRI grading for anterior compartment prolapse also demonstrated a positive correlation (p = 0.001, ρ = 0.436) with the POP-Q staging derived from measurement locations Aa and Ba. The overall dMRI grade is better correlated with POP-Q stage than with BW grade (p = 0.024)..Overall and anterior compartment grading from dMRI demonstrated a significant and positive correlation with the overall POP-Q staging and anterior compartment POP-Q staging, respectively. The overall dMRI grade is better correlated with POP-Q staging than with BW grading.
• Arif Tiwari, H., Twiss, C. O., Lin, F. C., Funk, J., Vedantham, S., Martin, D. R., & Kalb, B. T. (2018). Improved Detection of Pelvic Organ Prolapse: Comparative Utility of Defecography Phase Sequence to Nondefecography Valsalva Maneuvers in Dynamic Pelvic Floor Magnetic Resonance Imaging. Current Problems in Diagnostic Radiology.
• Arif-Tiwari, H., Twiss, C. O., Lin, F. C., Funk, J. T., Vedantham, S., Martin, D. R., & Kalb, B. T. (2018). Improved Detection of Pelvic Organ Prolapse: Comparative Utility of Defecography Phase Sequence to Nondefecography Valsalva Maneuvers in Dynamic Pelvic Floor Magnetic Resonance Imaging. Current problems in diagnostic radiology.
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  To evaluate the utility of a defecography phase (DP) sequence in dynamic pelvic floor MRI (DPMRI), in comparison to DPMRI utilizing only non-defecography Valsalva maneuvers (VM).
• Arif-Tiwari, H., Twiss, C. O., Lin, F. C., Funk, J., Vedantham, S., Martin, D. R., & Kalb, B. T. (2018). Improved Detection of Pelvic Organ Prolapse: Comparative utility of defecography phase (DP) sequence to non-defecography Valsalva maneuvers (VM) in dynamic pelvic floor MRI (dMRI). Journal: Current Problems in Diagnostic Radiology. ScienceDirect. doi:https://doi.org/10.1067/j.cpradiol.2018.08.005Get rights and content
• Austin, E. T., Bergersen, A., Callegari, M., Funk, J., Oduyemi, O., Price, E., Twiss, C. O., & Twiss, C. O. (2018). MP33-19 SYMPTOM RESOLUTION AND RECURRENT PROLAPSE RATES FOLLOWING VAGINAL MESH REMOVAL. The Journal of Urology, 199(4S). doi:10.1016/j.juro.2018.02.1090
• Lin, F. C., Funk, J. T., Tiwari, H. A., Kalb, B. T., & Twiss, C. O. (2018). Dynamic Pelvic Magnetic Resonance Imaging Evaluation of Pelvic Organ Prolapse Compared to Physical Examination Findings. Urology, 119, 49-54.
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  To compare dynamic magnetic resonance imaging (dMRI) defecography phase findings with physical examination (PE) grading in the evaluation of pelvic organ prolapse (POP).
• Lin, F., Arif Tiwari, H., Kalb, B., Funk, J., & Twiss, C. O. (2018). Dynamic Pelvic MRI in the Evaluation of Pelvic Organ Prolapse and Correlation with Physical Exam Findings. Female Urology and Voiding Dysfunction, 119, 49-54. doi:doi: 10.1016/j.urology.2018.05.031. Epub 2018 Jun 23.
• Lin, F., Twiss, C. O., Funk, J., Kalb, B. T., Arif Tiwari, H., Arif Tiwari, H., Kalb, B. T., Funk, J., Lin, F., & Twiss, C. O. (2017). Dynamic Pelvic MRI Evaluation of Pelvic Organ Prolapse Compared to Physical Exam Findings. Journal of Urology.
• Twiss, C. O., Funk, J., Oduyemi, O., Austin, E., Callegari, M., Price, E., & Bergersen, A. (2018). Symptom Resolution and Recurrent Stress Incontinence Following Urethral Sling Removal. Journal of Urology, 6(199), 1577-1583.
• Twiss, C. O., Twiss, C. O., Lin, F. C., & Funk, J. (2018). V10-05 TOTAL AUTOLOGOUS FASCIA LATA ROBOTIC SACROCOLPOPEXY: A NEW TECHNIQUE. The Journal of Urology, 199(4). doi:10.1016/j.juro.2018.02.2661
• Twiss, C. O., Twiss, C. O., Price, E., Phung, M., Lwin, A., Hynes, K., & Funk, J. (2018). MP62-19 HOLMIUM LASER ENUCLEATION OF THE PROSTATE: PERIOPERATIVE OUTCOMES FOR SAME DAY PROCEDURES. The Journal of Urology, 199(4). doi:10.1016/j.juro.2018.02.2020
• Funk, J., Twiss, C. O., Gretzer, M., Jonathan, W., Edward, B., & Michalak, J. (2017). The Impact of Surgical Masks on the Rate of Postoperative Urinary Tract Infection after Cystoscopy and Ureteroscopy. Journal of Urology.
• Kim, S., Pollock, G. R., Twiss, C. O., & Funk, J. T. (2019). Surgery for Posterior Compartment Vaginal Prolapse: Graft Augmented Repair. The Urologic clinics of North America, 46(1), 87-95.
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  Posterior compartment vaginal prolapse can be approached with multiple surgical techniques, including transvaginally, transperineally, and transanally, repaired with either native tissue or with the addition of an augment. Augment material for posterior compartment prolapse includes biologic graft (dermal, porcine submucosal), absorbable mesh (Vicryl polyglactin), or nonabsorbable synthetic mesh (polypropylene). Anatomic success rates for posterior compartment repair with augment has ranged from 54% to 92%. Augmented posterior compartment repair has not been shown to have superior outcome to native tissue repair. The focus of this article is on the transvaginal approach comparing native tissue repair with graft or mesh augmented repair.
• Lin, F. C., Funk, J. T., Arif Tiwari, H., Kalb, B. T., & Twiss, C. O. (2017). Dynamic Pelvic MRI Evaluation of Pelvic Organ Prolapse Compared to Physical Exam Findings. Urology. doi:https://doi.org/10.1016/j.urology.2018.05.031
• Michalak, J., Lin, F., & Twiss, C. O. (2017). Preoperative Evaluation and Optimization of the Geriatric Urologic Patient. Urology Practice, 4, 499-507. doi:http://dx.doi.org/10.1016/j.urpr.2016.10.006
• Twiss, C. O., Kalb, B. T., Arif Tiwari, H., Funk, J., & Lin, F. (2017). Dynamic Pelvic MRI Evaluation of Pelvic Organ Prolapse Compared to Physical Exam Findings. Journal of Urology, 197(4), e53. doi:https://doi.org/10.1016/j.juro.2017.02.199
• Dyer, A. J., & Twiss, C. O. (2014). Painful bladder syndrome: an update and review of current management strategies. Current urology reports, 15(2), 384.
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  Interstitial cystitis/painful bladder syndrome (IC/PBS) remains a prevalent, but untreated disease with a poorly understood pathophysiology. Nonetheless, four main processes currently appear to be involved in producing IC/PBS symptoms: (1) disruption of the bladder GAG/proteoglycan layer, (2) upregulated immune/inflammatory response, (3) neural upregulation, and (4) pelvic floor dysfunction. Current and emerging therapies aimed at these potential targets will be the focus of this review with an update on IC/PBS therapy.
• Onyishi, S. E., & Twiss, C. O. (2014). Pressure flow studies in men and women. The Urologic clinics of North America, 41(3), 453-67, ix.
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  There are well established pressure flow criteria and nomograms for urinary obstruction in men. The pressure flow criteria for female urinary obstruction are not well established due to differences in female voiding dynamics as compared to men. Typically, other information such as radiographic data and clinical symptoms are needed to facilitate the diagnosis. Detrusor underactivity remains a poorly studied clinical condition without definitive urodynamic diagnostic criteria. Modalities proposed for objective analysis of detrusor function such as power (watt) factor, linear passive urethral resistance relation and BCI nomogram were all developed to analyze male voiding dysfunction. Overall, further investigation is needed to establish acceptable urodynamic criteria for defining detrusor underactivity in women.
• Twiss, C. O., Brown, C., & Sylvester, O. (2014). Detrusor Underactivity and Detrusor Hyperactivity with Impaired Contractility. Current Bladder Dysfunction Reports, 9, 341-349.
• Nelson, P. S., Lee, P., Terris, M. K., Culig, Z., Wang, Z., & Twiss, C. O. (2013). American Journal of Clinical and Experimental Urology: Editorial Board (2013) e-Century Publishing Corporation. American journal of clinical and experimental urology, 1(1), 83-4.
• Terris, M. K., Wang, Z., Culig, Z., Twiss, C. O., Lee, P., & Nelson, P. S. (2013). Launching of american journal of clinical and experimental urology. American journal of clinical and experimental urology, 1(1), 1-2.
• Anger, J., Twiss, C., Triaca, V., Patel, M., Smith, A., Kim, J., Raz, S., & Rodríguez, L. V. (2009). Validating the Incontinence Symptom Severity Index: A Self-Assessment Instrument for Voiding Symptom Severity in Women. Journal of Urology, 182(5), 2384-2391. doi:10.1016/j.juro.2009.07.025
• Twiss, C. O., Kilpatrick, L., Craske, M., Buffington, T., Ornitz, E., Rodriguez, L., Mayer, E. A., & Naliboff, B. D. (2009). Increased Startle Responses in Interstitial Cystitis: Evidence for Central Hyperresponsiveness to Visceral-Related Threat. Journal of Urology, 181, 2127-33.
• Twiss, C. O., Triaca, V., Anger, J., Patel, M., Smith, A., Kim, J. H., Raz, S., & Rodriguez, L. V. (2009). Validating the Incontinence Symptom Severity Index: A Self-Assessment Instrument for Voiding Symptom Severity in Women. Journal of Urology, 182, 2384-91.
• Twiss, C. O., Wang, L., Zou, X., Berger, A. D., Peng, Y., Li, Y., Chiu, J., Guo, H., Stagopan, J., Wilton, A., Gerald, W., Basch, R., Osman, I., & Lee, P. (2009). Increased Expression of Histone Deacetylaces (HDACs) and Inhibition of Prostate Cancer Growth and Invasion by HDAC Inhibitor SAHA. American Journal of Translational Research, 62.
• Twiss, C. O., & Raz, S. (2008). Complications of Synthetic Mid-Urethral Slings. Issues in Incontinence.
• Twiss, C. O., & Rodriguez, L. V. (2008). Female Stress Urinary Incontinence - Where are We?. Journal of Urology, 179, 1664-5.
• Twiss, C. O., Anger, J. T., Triaca, V., Patel, M., Smith, A., Kim, J., Raz, S., & Rodriguez, L. V. (2008). VALIDATION OF THE INCONTINENCE SYMPTOM SEVERITY INDEX: A SELF-ASSESSMENT INSTRUMENT FOR VOIDING SYMPTOM SEVERITY IN WOMEN. Journal of Urology, 179(4S), 486-486. doi:10.1016/s0022-5347(08)61429-9
• Twiss, C. O., Triaca, V., Bergman, J., & Rodriguez, L. V. (2008). The Epidemiology, Social Burden and Genetics of Pelvic Organ Prolapse. Current Bladder Dysfunction, 3, 90-94.
• Twiss, C. O., Triaca, V., Smith, A. L., Rodriguez, L. V., Raz, S., & Kim, J. H. (2008). Description of a salvage technique in patients with previously failed continent catheterizable ileocecal urinary diversion. Neurourology and Urodynamics, 27(2), 118-119.
• Velez-Carrasco, W., Merkel, M., Twiss, C. O., & Smith, J. D. (2008). Dietary methionine effects on plasma homocysteine and HDL metabolism in mice. The Journal of nutritional biochemistry, 19(6), 362-70.
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  The effects of dietary manipulation of folate and methionine on plasma homocysteine (Hcy) and high-density lipoprotein cholesterol (HDL-C) levels in wild-type and apolipoprotein-E-deficient mice were determined. A low-folate diet with or without folate and/or methionine supplementation in drinking water was administered for 7 weeks. Fasted Hcy rose to 23 microM on a low-folate/high-methionine diet, but high folate ameliorated the effect of high methionine on fasted plasma Hcy to approximately 10 microM. Determination of nonfasted plasma Hcy levels at 6-h intervals revealed a large diurnal variation in Hcy consistent with a nocturnal lifestyle. The daily average of nonfasted Hcy levels was higher than fasted values for high-methionine diets but lower than fasted values for low-methionine diets. An acute methionine load by gavage of fasted mice increased plasma Hcy 2.5 h later, but mice that had been on high-methionine diets had a lower fold induction. Mice fed high-methionine diets weighed less than mice fed low-methionine diets. Based on these results, two solid-food diets were developed: one containing 2% added methionine and the other containing 2% added glycine. The methionine diet led to fasted plasma Hcy levels of >60 microM, higher than those with methionine supplementation in drinking water. Mice on methionine diets had >20% decreased body weights and decreased HDL-C levels. An HDL turnover study demonstrated that the HDL-C production rate was significantly reduced in mice fed the methionine diet.
• Triaca, V., Twiss, C. O., & Raz, S. (2007). Urethral compression for the treatment of postprostatectomy urinary incontinence: is history repeating itself?. European urology, 51(2), 304-5.
• Twiss, C. O., Arboleda, V. A., Arboleda, V. A., Mayer, E. A., Mayer, E. A., Craske, M. G., Craske, M. G., Twiss, C. O., Triaca, V., Rodriguez, L. V., Raz, S., Ornitz, E. M., Naliboff, B. D., Mayer, E. A., Kilpatrick, L. A., Ibrahimovic, H., Craske, M. G., & Arboleda, V. A. (2007). 127: Evidence for Central Hyperexitability in Patients with Interstitial Cystitis. The Journal of Urology, 177(4S), 44-44. doi:10.1016/s0022-5347(18)30392-6
• Twiss, C. O., Fischer, M. C., & Nitti, V. W. (2007). Comparison between reduction in 24-hour pad weight, International Consultation on Incontinence-Short Form (ICIQ-SF) score, International Prostate Symptom Score (IPSS), and Post-Operative Patient Global Impression of Improvement (PGI-I) score in patient evaluation after male perineal sling. Neurourology and urodynamics, 26(1), 8-13.
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  We assessed the utility of three self-assessment instruments: the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), the post-operative Patient Global Impression of Improvement (PGI-I) score, and the International Prostate Symptom Score (IPSS) by correlating them with an objective outcome, the change in 24-hr pad weight, after a male perineal sling.
• Twiss, C. O., Silverman, D. H., Zabihi, N., Twiss, C. O., Triaca, V., Silverman, D. H., Rodriguez, L. V., Raz, S., & Geist, C. (2007). 1377: Effecsts of Sacral Neuromodulation on the Central Nervous System. The Journal of Urology, 177(4S), 454-454. doi:10.1016/s0022-5347(18)31591-x
• Twiss, C. O., Sinsheimer, J. S., Vilain, E., Twiss, C. O., Stanley, N., Sinsheimer, J. S., Rodriguez, L. V., Nikolova, G., & Lee, H. (2007). 1280: Increased Susceptibility to Genitovaginal Prolapse Associated with a Polymorphism in the Promoter of the Extracellular Matrix Protein LAMC1. The Journal of Urology, 177(4S), 421-422. doi:10.1016/s0022-5347(18)31494-0
• Twiss, C. O., Triaca, V., & Raz, S. (2007). The Posterior Compartment: Evaluation and Functional Outcomes after Surgical Repair. Current Bladder Dysfunction Report, 2, 205-13.
• Twiss, C. O., Triaca, V., & Rodriguez, L. V. (2007). Familial Transmission of Urogenital Prolapse and Incontinence. Current Opinion Ob Gyn, 19, 464.
• Twiss, C. O., Triaca, V., Rodriguez, L. V., & Raz, S. (2007). V870: Transvaginal Repair of Vesicovaginal Fistula using Peritoneal Flap Advancement. The Journal of Urology, 177(4), 289-290. doi:10.1016/s0022-5347(18)32161-x
• Twiss, C. O., Triaca, V., Rodriguez, L. V., Raz, S., & Konijeti, R. (2007). 1278: The Role of Diagnostic Criteria of Obstruction in Patients with High Grade Cystocele: Correlation to Subjective Symptoms. The Journal of Urology, 177(4S), 421-421. doi:10.1016/s0022-5347(18)31492-7
• Twiss, C. O., Triaca, V., Shah, S. M., Rutman, M. P., Rodriguez, L. V., Raz, S., & Deng, D. Y. (2007). V867: Spiral Sling Salvage Anti-Incontinence Procedure for Female Patients with Severe Urethral Incompetence. The Journal of Urology, 177(4S), 289-289. doi:10.1016/s0022-5347(18)32158-x
• Twiss, C. O., Nitti, V. W., Twiss, C. O., Nitti, V. W., & Fischer, M. C. (2006). 1364: Association between Involuntary Detrusor Contractions on Preoperative Urodynamics and Postoperative Outcomes in Patients Undergoing Male Perineal Sling. The Journal of Urology, 175(4S), 440-440. doi:10.1016/s0022-5347(18)33577-8
• Twiss, C. O., Nitti, V. W., Twiss, C. O., Nitti, V. W., & Fischer, M. C. (2006). 1365: Predictive Factors for Involuntary Detrusor Contractions on Preoperative Urodynamics in Patients Undergoing Male Perineal Sling. The Journal of Urology, 175(4S), 440-440. doi:10.1016/s0022-5347(18)33578-x
• Twiss, C. O., Nitti, V. W., Twiss, C. O., Nitti, V. W., & Fischer, M. C. (2006). 357: Comparison Between Change in 24-Hour Pad Weight, AUA Symptom Score, ICIQ-SF Score, and PGI-I Score in Patient Evaluation after Male Perineal Sling. The Journal of Urology, 175(4S), 116-117. doi:10.1016/s0022-5347(18)32613-2
• Nitti, V. W., Twiss, C. O., Twiss, C. O., Nitti, V. W., Huckabay, C. P., & Chang, K. (2005). 1129: Intermediate Term Analysis of Young Men with Primary Bladder Neck Obstruction Treated with Transurethral Incision of the Bladder Neck. The Journal of Urology, 173(4S), 306-307. doi:10.1016/s0022-5347(18)35285-6
• Twiss, C. O., Fleischmann, N., & Nitti, V. (2005). Correlation of Abdominal Leak Point Pressure with Objective Incontinence Severity in Men with Post-Prostatectomy Stress Incontinence. Neurourology and Urodynamics, 24, 207.
• Twiss, C. O., Huackabay, C., Berger, A., & Nitti, V. W. (2005). A Urodynamics Protocol to Optimally Assess Men with Post-Prostatectomy Incontinence. Neurourology and Urodynamics, 24, 622.
• Twiss, C. O., Slova, D., & Lepor, H. (2005). Outcomes for Men Under 50 Years of Age Undergoing Radical Prostatectomy: A Rationale for Earlier PSA Screening. Urology, 66, 141.
• Nitti, V. W., Twiss, C. O., Twiss, C. O., Nitti, V. W., & Fleischmann, N. (2004). 1706: Abdominal Leak Point Pressure Does not Correlate with Objective Urine Loss in Men with Post Prostatectomy Incontinence. The Journal of Urology, 171(4S), 451-451. doi:10.1016/s0022-5347(18)38898-0
• Twiss, C. O., & Grasso, M. (2000). Abdominal Pain Associated with an Intra-Abdominal Gonad in Adult. Rev Urology, 2, 178.
• Twiss, C. O., Martin, S., Shore, R., & Lepor, H. (2000). A Continence Index Predicts the Return of Urinary Continence Following Radical Retropubic Prostatectomy. Journal of Urology, 164, 1241.
• Twiss, C. O., Shore, R. O., Martin, S., & Lepor, H. (2000). A CONTINENCE INDEX PREDICTS THE EARLY RETURN OF URINARY CONTINENCE AFTER RADICAL RETROPUBIC PROSTATECTOMY. The Journal of Urology, 164(4), 1241-1247. doi:10.1016/s0022-5347(05)67148-0
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  Purpose: We evaluated the ability of a newly developed continence index to predict the return of urinary continence 3 months after radical retropubic prostatectomy.Materials and Methods: We developed and used a continence index to determine continence level after removal of the urinary catheter on postoperative day 15 in 145 men. A total of 20 patients were evaluated independently by 2 nurse specialists to assess continence index reliability. We evaluated continence level, pad use and degree of bothersomeness due to incontinence 3 months after catheter removal. The association of continence score with outcome variables was calculated using the Mantel-Haenszel trend test and the predictive ability of the continence score was determined by logistic regression to produce cumulative odds ratios.Results: The intraclass correlation coefficient was 0.995 for the independently assessed continence index ratings and the Cronbach coefficient α was 0.65 for the 5 continence index parameters. Complete continence or co...

Presentations

• Twiss, C. O. (2023, October). Emil Tanagho Lectureship: "The Riddle of the Sphincter". Western Section of the American Urological Association. Lake Tahoe, CA: Western Section of the American Urological Association.
• Twiss, C. O., & Rust, J. (2022, February). Video Abstract Presentation " Modified Martius Flap Urethroplasty". SUFU Winter Meeting in San Diego, CA. San Diego, CA.
• Chaus, F., Funk, J., & Twiss, C. O. (2021, September). Large Fascia Lata Harvests for Pelvic Organ Prolapse Repair: Are they Safe?. International Continence Society. Melbourne, Australia (Virtual On-line).
• Bergersen, A., Price, E., Callegari, M., Austin, E., Oduyemi, O., Funk, J., & Twiss, C. O. (2018, Spring). Symptom Resolution and Recurrent Prolapse Rates Following Vaginal Mesh Removal. American Urological Association Meeting 2018. San Francisco, CA.
• Bergersen, A., Price, E., Callegari, M., Austin, E., Oduyemi, O., Funk, J., & Twiss, C. O. (2018, Spring). Symptom Resolution and Recurrent Stress Incontinence Following Urethral Sling Removal. SUFU Meeting 2018. San Antonio, TX.
• Bergersen, A., Price, E., Callegari, M., Austin, E., Oduyemi, O., Joel, F., & Twiss, C. O. (2018, Spring). SYMPTOM RESOLUTION AND RECURRENT PROLAPSE RATES FOLLOWING VAGINAL MESH REMOVAL. Society of Urodynamics, Female Pelvic Medicine, and Urogenital Reconstruction. Austin, TX.
• Chaus, F., Pangilinan, J., Funk, J., & Twiss, C. O. (2018, Fall). TOTAL AUTOLOGOUS FASCIA LATA ANTERIOR AND APICAL PELVIC ORGAN PROLAPSE REPAIR: EXPERIENCE IN THIRTY-THREE PATIENTS. Western Section American Urological Association. Maui, HI.
• Funk, J., Lin, F., & Twiss, C. O. (2018, Winter). Video Submission: Total Autologous Fascia Lata Sacrocolpopexy. SUFU 2018 Winter Meeting. San Antonio, TX.
• Twiss, C. O. (2018, Spring). Vaginal Mesh Removal and Beyond. Kimbrough SGUS Meeting. Phoenix, AZ.
• Lin, F., Arif Tiwari, H., Kalb, B., Funk, J., & Twiss, C. O. (2017, May). Dynamic Pelvic MRI in the Evaluation of Pelvic Organ Prolapse and Correlation with Physical Exam Findings. American Urological Association 2017 Annual Meeting. Scottsdale, AZ.
• Arif Tiwari, H., Costello, J. R., Funk, J., Kalb, B. T., Martin, D. R., Meshksar, A., Petkovska, I., Czeyda-Pommersheim, F., & Twiss, C. O. (2016, April). Comparative Evaluation of Defecography Phase to Non-Defecography Valsalva Maneuver in Dynamic Pelvic Floor MRI. Canadian Association of Radiologists, 79th Annual Scientific Meeting (ASM). Montreal, QC.
• Martin, D. R., Funk, J., Twiss, C. O., Kalb, B. T., & Arif Tiwari, H. (2014, May). Addition of a Defecography Phase to Dynamic Pelvic MRI Enhances Detection and Visualization of Pelvic Organ Prolapse. American Urological Association Meeting. Orlando, FL.
• Martin, D. R., Twiss, C. O., Funk, J., Kalb, B. T., & Arif Tiwari, H. (2014, February). Addition of a Defecography Phase to Dynamic Pelvic MRI Enhances Detection and Visualization of Pelvic Organ Prolapse. Society of Urodynamics, Female Pelvic Medicine, and Urogenital Reconstruction Meeting. Miami, FL.
• Twiss, C. O., Arif, H. M., Kalb, B., Funk, J. T., & Martin, D. (2014, Spring). Addition of a Defecography Phase to Dynamic Pelvic MRI Enhances Detection and Visualization of Pelvic Organ Prolapse. American Urological Association Meeting. Orlando, FL: AUA.

Poster Presentations

• Bergersen, A., Price, E., Callegari, M., Oduyemi, O., Funk, J., & Twiss, C. O. (2018, February). SYMPTOM RESOLUTION AND RECURRENT STRESS INCONTINENCE FOLLOWING URETHRAL SLING REMOVAL. Society for Urodynamics, Female Pelvic Medicine, and Urogenital Reconstruction. Austin, TX.
• Funk, J., Twiss, C. O., Price, E. T., Phung, M. C., Hynes, K. A., LaGrandeur, J. R., Pangilinan, J. Q., & Lwin, A. A. (2018, October, 2018). Holmium Laser Enucleation of the Prostate: Perioperative Outcomes for Same Day Procedures.. Western Section, American Urological Assocation. Maui, Hawaii.
• Funk, J., Twiss, C. O., Price, E. T., Phung, M. C., Hynes, K. A., LaGrandeur, J. R., Pangilinan, J. Q., & Lwin, A. A. (2018, October, 2018). Holmium Laser Enucleation of the Prostate: Perioperative Outcomes for Same Day Procedures.. World Congress of Endourology. Maui, Hawaii.
• Funk, J., Twiss, C. O., Price, E. T., Phung, M. C., Hynes, K. A., LaGrandeur, J. R., Pangilinan, J. Q., & Lwin, A. A. (2018, September, 2018). Holmium Laser Enucleation of the Prostate: Perioperative Outcomes for Same Day Procedures.. Western Section, American Urological Assocation. Paris, France.
• Bergerson, A., Austin, E., Bricklin, L., Price, E., Funk, J., & Twiss, C. O. (2017, Summer). Impact of Transvaginal Mesh Removal on Vaginal Pain, Urinary Incontinence, and Pelvic Organ Prolapse. Western Section American Urological Association Meeting. Vancouver, BC.
• Twiss, C. O., Funk, J. T., & Tourville, E. (2015, Spring). Validation of the SEAPI-S Questionnaire. SUFU Meeting. Scottsdale, AZ: SUFU.
• Twiss, C. O., Arif, H. M., Kalb, B., Funk, J. T., & Martin, D. (2014, Spring). Addition of a Defecography Phase to Dynamic Pelvic MRI Enhances Detection and Visualization of Pelvic Organ Prolapse. SUFU Meeting. Miami, FL: SUFU.

Others

• Lin, F., Craig, M., Twiss, C. O., & Funk, J. (2017, March). Total autologous fascia lata anterior repair and vaginal vault suspension: A new technique!. Society of Urodynamics, Female Pelvic Medicine & Urogential Reconstruction.
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  Video presentation