Michael Avery

Interests

Research

Stroke and aneurysm treatment outcomes;Optimizing peri-operative outcomes for skull base tumor surgery;Improving endoscopic techniques

Teaching

Anatomical/cadaveric teaching, clinical teaching with an emphasis on vascular/endovascular and skull base pathologies

Courses

No activities entered.

Scholarly Contributions

Chapters

• Avery, M. (2021). Cerebral vasospasm. In Neurointerventional Surgery: An Evidence Based Approach, 1st Ed..
• Avery, M. (2022). Endoscopic endonasal approaches. In Youssef S et al (Eds). . In Contemporary Skull base Surgery: A Comprehensive Guide to Functional Preservation.
• Avery, M. (2022). Pituitary surgery. In De Groot’s Endocrinology: Basic Science and Clinical Practice, 8th Ed..
• Avery, M. (2022). Principles of skull base reconstruction. In Contemporary Skull base Surgery: A Comprehensive Guide to Functional Preservation.
• Avery, M., Ogilvy, C., & Mitha, A. (2017). Cerebrovascular disease. In Reference Collection in Neuroscience and Biobehavioral Psychology. doi:10.1016/B978-0-12-809324-5.02031-9
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  This article consists of a general overview of brain and spinal cord vascular diseases, including occlusive diseases, vascular malformations of the brain and spine, and vascular pathologies related to trauma. Important features of the presenting symptoms, diagnosis, and pathophysiology of these diseases are discussed. Typical management techniques are also highlighted, with a focus on current surgical and endovascular treatment methods.

Journals/Publications

• Avery, M. (2016). Intra-operative indocyanine green videoangiography to guide decision making regarding need for vessel bypass: a case report and technical note. Surg Neurol Int.
• Avery, M. (2021). Endoscopic endonasal surgery for anterior skull base meningiomas. Mini-invasive Surg, 17.
• Barkhoudarian, G., Zhou, D., Avery, M., Khan, U., Mallari, R. J., Emerson, J., Griffiths, C., & Kelly, D. F. (2024). Comparative analysis of endoscope obscurations with utilization of an endonasal access guide for endonasal skull base surgery . Operative Neurosurgery.
• Campos, J. K., Meyer, B. M., Zarrin, D. A., Khan, M. W., Collard de Beaufort, J. C., Amin, G., Avery, M. B., Golshani, K., Beaty, N. B., Bender, M. T., Colby, G. P., Lin, L. M., & Coon, A. L. (2024). Immediate procedural safety of adjunctive proximal coil occlusion in middle meningeal artery embolization for chronic subdural hematomas: Experience in 137 cases. Interventional neuroradiology : journal of peritherapeutic neuroradiology, surgical procedures and related neurosciences, 15910199231224003.
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  Endovascular embolization of the middle meningeal artery (MMA) has emerged as an adjunctive and stand-alone modality for the management of chronic subdural hematomas (cSDH). We report our experience utilizing proximal MMA coil embolization to augment cSDH devascularization in MMA embolization.
• Sheldon, B. L., Riordan, K., Fallahi, S., Samargandy, S., Le, C. H., & Avery, M. B. (2024). An unusual case of aggressive endometrial adenocarcinoma metastasis to the clivus: illustrative case. Journal of neurosurgery. Case lessons, 8(18).
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  Though endometrial carcinomas are a relatively common cancer of the female genitourinary tract, they rarely metastasize. Similarly, clival metastases make up a tiny fraction of all brain metastases. To the authors' knowledge, an endometrial carcinoma clival metastasis has never been described in the literature; therefore, the authors present the following unusual case of a 69-year-old female with a history of an initially grade 2 endometrial adenocarcinoma that metastasized to her clivus.
• Mamaril-Davis, J., Aguilar-Salinas, P., Avila, M. J., Dumont, T., & Avery, M. B. (2023). Recurrence Rates Following Treatment of Spinal Vascular Malformations: A Systematic Review and Meta-Analysis. World neurosurgery, 173, e250-e297.
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  Spinal vascular malformations (SVMs), including arteriovenous malformations (AVMs) and arteriovenous fistulas (AVFs), are a varied group of vascular lesions that can be subclassified according to localization, vascular structure, and hemodynamics. Early intervention is necessary to halt progression of disease and minimize irreversible dysfunction. We sought to characterize initial treatment success and recurrence rates following interventional treatment of various types of SVMs.
• Olson, M. G., Avery, M. B., Javaherian, S., Sivakumar, W., Kelly, D. F., Griffiths, C., & Barkhoudarian, G. (2022). Minimally invasive pericranial flap harvest through a supraorbital eyebrow craniotomy: Technical note in salvage skull base reconstruction. Clinical neurology and neurosurgery, 217, 107266.
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  The supraorbital eyebrow craniotomy is a minimally invasive approach that provides access to pathologies of the anterior and middle cranial fossae. Vascularized flaps are preferred when considering reconstructive options, however, small incisions may not provide adequate access to vascularized tissue. We present two cases demonstrating a modified technique for harvesting pericranium through an eyebrow supraorbital craniotomy for reconstruction of large skull base defects.
• Al Saiegh, F., Sweid, A., Chalouhi, N., Philipp, L., Mouchtouris, N., Khanna, O., Avery, M. B., Schmidt, R. F., Ghosh, R., Hafazalla, K., Weinberg, J. H., Starke, R. M., Gooch, M. R., Tjoumakaris, S., Rosenwasser, R. H., & Jabbour, P. (2021). Comparison of Transradial vs Transfemoral Access in Neurovascular Fellowship Training: Overcoming the Learning Curve. Operative neurosurgery (Hagerstown, Md.), 21(1), E3-E7.
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  The transradial access (TRA) is rapidly gaining popularity for neuroendovascular procedures as there is strong evidence for its benefits compared to the traditional transfemoral access (TFA). However, the transition to TRA bears some challenges including optimization of the interventional suite set-up and workflow as well as its impact on fellowship training.
• Avery, M. B., Mallari, R. J., Barkhoudarian, G., & Kelly, D. F. (2021). Supraorbital and mini-pterional keyhole craniotomies for brain tumors: a clinical and anatomical comparison of indications and outcomes in 204 cases. Journal of neurosurgery, 1-11.
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  The authors' objective was to compare the indications, outcomes, and anatomical limits of supraorbital (SO) and mini-pterional (MP) craniotomies in patients with intra- and extraaxial brain tumors, and to assess approach selection, utility of endoscopy, and surgical field overlap.
• Belanger, B. L., Avery, M. B., Sen, A., Eesa, M., & Mitha, A. P. (2021). Creating Clinically Relevant Aneurysm Sizes in the Rabbit Surgical Elastase Model. World neurosurgery, 152, e173-e179.
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  Creating aneurysm sizes in animal models that resemble human aneurysms is essential to study and test neuroendovascular devices. The commonly used rabbit surgical elastase model, however, produces saccular aneurysms that are smaller than those typically treated in humans. The goal of this study was to determine whether an increased vessel stump length and the addition of calcium chloride to the incubation solution has an effect on the resulting aneurysm size.
• Chalouhi, N., Sweid, A., Al Saiegh, F., Sajja, K. C., Schmidt, R. F., Avery, M. B., Mouchtouris, N., Khanna, O., Weinberg, J. H., Romo, V., Tjoumakaris, S., Gooch, M. R., Herial, N., Rosenwasser, R. H., & Jabbour, P. (2021). Feasibility and initial experience of left radial approach for diagnostic neuroangiography. Scientific reports, 11(1), 1089.
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  Neuroangiography has seen a recent shift from transfemoral to transradial access. In transradial neuroangiography, the right dominant hand is the main access used. However, the left side may be used specifically for left posterior circulation pathologies and when right access cannot be used. This study describes our initial experience with left radial access for diagnostic neuroangiography and assesses the feasibility and safety of this technique. We performed a retrospective review of a prospective database of consecutive patients between April 2018 and January 2020, and identified 20 patients whom a left radial access was used for neurovascular procedures. Left transradial neuroangiography was successful in all 20 patients and provided the sought diagnostic information; no patient required conversion to right radial or femoral access. Pathology consisted of anterior circulation aneurysms in 17 patients (85%), brain tumor in 1 patient (5%), and intracranial atherosclerosis disease involving the middle cerebral artery in 2 patients (10%). The left radial artery was accessed at the anatomic snuffbox in 18 patients (90%) and the wrist in 2 patients (10%). A single vessel was accessed in 7 (35%), two vessels in 8 (40%), three vessels in 4 (20%), and four vessels in 1 (5%). Catheterization was successful in 71% of the cases for the right internal carotid artery and in only 7.7% for the left internal carotid artery. There were no instances of radial artery spasm, radial artery occlusion, or procedural complications. Our initial experience found the left transradial access to be a potentially feasible approach for diagnostic neuroangiography even beyond the left vertebral artery. The approach is strongly favored by patients but has significant limitations compared with the right-sided approach.
• Mallari, R. J., Avery, M. B., Corlin, A., Eisenberg, A., Hammond, T. C., Martin, N. A., Barkhoudarian, G., & Kelly, D. F. (2021). Streamlining brain tumor surgery care during the COVID-19 pandemic: A case-control study. PloS one, 16(7), e0254958.
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  The COVID-19 pandemic forced a reconsideration of surgical patient management in the setting of scarce resources and risk of viral transmission. Herein we assess the impact of implementing a protocol of more rigorous patient education, recovery room assessment for non-ICU admission, earlier mobilization and post-discharge communication for patients undergoing brain tumor surgery.
• Schmidt, R. F., Sweid, A., Chalouhi, N., Avery, M. B., Sajja, K. C., Al-Saiegh, F., Weinberg, J. H., Asada, A., Joffe, D., Zarzour, H. K., Gooch, M. R., Rosenwasser, R. H., Jabbour, P. M., & Tjoumakaris, S. I. (2021). Endovascular Management of Complex Fenestration-Associated Aneurysms: A Single-Institution Retrospective Study and Review of Existing Techniques. World neurosurgery, 146, e607-e617.
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  Aneurysms associated with fenestrations of intracranial arteries are exceptionally rare findings. Management strategies for these aneurysms are not well-defined, especially regarding endovascular treatment. We sought to investigate the strategies and feasibility of endovascular treatment approaches for various fenestration-associated intracranial aneurysms.
• Al Saiegh, F., Ghosh, R., Leibold, A., Avery, M. B., Schmidt, R. F., Theofanis, T., Mouchtouris, N., Philipp, L., Peiper, S. C., Wang, Z. X., Rincon, F., Tjoumakaris, S. I., Jabbour, P., Rosenwasser, R. H., & Gooch, M. R. (2020). Status of SARS-CoV-2 in cerebrospinal fluid of patients with COVID-19 and stroke. Journal of neurology, neurosurgery, and psychiatry, 91(8), 846-848.
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  Emergence of the novel corona virus (severe acute respiratory syndrome (SARS)-CoV-2) in December 2019 has led to the COVID-19 pandemic. The extent of COVID-19 involvement in the central nervous system is not well established, and the presence or the absence of SARS-CoV-2 particles in the cerebrospinal fluid (CSF) is a topic of debate.
• Jamshidi, M., Rajabian, M., Avery, M. B., Sundararaj, U., Ronsky, J., Belanger, B., Wong, J. H., & Mitha, A. P. (2020). A novel self-expanding primarily bioabsorbable braided flow-diverting stent for aneurysms: initial safety results. Journal of neurointerventional surgery, 12(7), 700-705.
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  The advent of metal flow-diverting stents has provided neurointerventionalists with an option for treating aneurysms without requiring manipulations within the aneurysm sac. The large amount of metal in these stents, however, can lead to early and late thrombotic complications, and thus requires long-term antiplatelet agents. Bioabsorbable stents have been postulated to mitigate the risk of these complications. Here we present early data on the first self-expandable primarily bioabsorbable stent for aneurysms.
• Khanna, O., Velagapudi, L., Das, S., Sweid, A., Mouchtouris, N., Al Saiegh, F., Avery, M. B., Chalouhi, N., Schmidt, R. F., Sajja, K., Gooch, M. R., Tjoumakaris, S., Rosenwasser, R. H., & Jabbour, P. M. (2020). A comparison of radial versus femoral artery access for acute stroke interventions. Journal of neurosurgery, 1-6.
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  In this study, the authors aimed to investigate procedural and clinical outcomes between radial and femoral artery access in patients undergoing thrombectomy for acute stroke.
• Sajja, K. C., Sweid, A., Al Saiegh, F., Chalouhi, N., Avery, M. B., Schmidt, R. F., Tjoumakaris, S. I., Gooch, M. R., Herial, N., Abbas, R., Zarzour, H., Romo, V., Rosenwasser, R., & Jabbour, P. (2020). Endovascular robotic: feasibility and proof of principle for diagnostic cerebral angiography and carotid artery stenting. Journal of neurointerventional surgery, 12(4), 345-349.
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  Robots in surgery aid in performing delicate, precise maneuvers that humans, with inherent physical abilities, may be limited to perform. The CorPath 200 system is FDA approved and is being implemented in the US for interventional cardiology procedures. CorPath GRX robotic-assisted platform is the next-generation successor of CorPath 200.
• Avery, M. B., Belanger, B. L., Bromley, A., Sen, A., & Mitha, A. P. (2019). Mesenchymal Stem Cells Exhibit Both a Proinflammatory and Anti-Inflammatory Effect on Saccular Aneurysm Formation in a Rabbit Model. Stem cells international, 2019, 3618217.
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  Several studies have demonstrated a potential interaction between mesenchymal stem cells (MSCs) and saccular aneurysms. In this study, we sought to determine whether allogenic bone marrow-derived MSCs had the ability to prevent aneurysm formation in a known rabbit elastase aneurysm model. MSCs were injected intravenously in experimental rabbits at the time of surgical creation and two weeks postcreation and compared with control rabbits receiving vehicle injection. Angiography was used to compare aneurysm measurements four weeks postcreation, and aneurysms were harvested for histological properties. Serum was collected longitudinally to evaluate cytokine alterations. Serum from control animals was also utilized to perform tests with MSCs to compare the effect of the serologic environment in animals with and without aneurysms on MSC proliferation and cytokine production. While aneurysm morphometric comparisons revealed no differences, significant cytokine alterations were observed and , suggesting both anti-inflammatory and proinflammatory processes were occurring in the presence of MSCs. Histological analyses suggested that tunica intima hyperplasia was inhibited in the presence of MSCs.
• Avery, M. B., Magal, I., Kherani, A., & Mitha, A. P. (2019). Risk of Stroke in Patients With Ocular Arterial Occlusive Disorders: A Retrospective Canadian Study. Journal of the American Heart Association, 8(3), e010509.
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  Background Monocular vision loss, attributed to either central retinal artery occlusion ( CRAO ), branch retinal artery occlusion ( BRAO ), or ocular ischemic syndrome ( OIS ), is thought to be associated with an increased prevalence of cerebral infarcts. However, there is a paucity of data substantiating this. We aimed to investigate this relationship in a Canadian center and further understand the importance of associated internal carotid artery stenosis in potential clinical decision making. Methods and Results We performed a retrospective cohort study at a comprehensive stroke center of patients presenting initially with CRAO , BRAO , or OIS to a centralized ophthalmology center over a 5-year period. Patients were followed for 3 years for the occurrence of a hemispheric stroke. We identified 83 affected eyes, with 31 CRAO , 35 BRAO , and 17 OIS patients. Before ocular diagnosis, 32.3%, 11.4%, and 41.2% of CRAO , BRAO , and OIS patients, respectively, experienced a symptomatic stroke. Of the remaining patients, 4.8%, 12.9%, and 40%, respectively, suffered a hemispheric stroke within 3 years of ocular diagnosis. Logistic regressions suggested that for CRAO and BRAO patients together, the degree of ipsilateral internal carotid artery stenosis is unable to predict the occurrence of a stroke ( P=0.18), whereas our model correctly predicted a stroke in 82.4% of OIS patients ( P=0.005). Conclusions CRAO , BRAO , and OIS are associated with significantly increased symptomatic stroke rates. Degree of ipsilateral internal carotid artery stenosis may not be useful in risk stratification for these patients, suggesting that they should be triaged appropriately for stroke risk-factor management, independent of internal carotid artery stenosis.
• de Lotbinière-Bassett, M., Avery, M. B., & Starreveld, Y. P. (2019). A Unique Case of Sinonasal Teratocarcinosarcoma Presenting as Foster Kennedy Syndrome. The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques, 46(3), 366-368.
• Avery, M. B., Sambrano, S., Khader Eliyas, J., Eesa, M., & Mitha, A. P. (2018). Accuracy and precision of venous pressure measurements of endovascular microcatheters in the setting of dural venous sinus stenosis. Journal of neurointerventional surgery, 10(4), 387-391.
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  Dural venous sinus stenosis (DVSS) may lead to increased intracranial pressure, sometimes requiring a stent if a high pressure gradient exists. Many neuroendovascular physicians use microcatheters to measure gradients, yet there are no studies comparing the accuracies and precisions of modern day microcatheters. We examined pressure recordings from five commonly used microcatheters in an experimental DVSS model.
• Avery, M., Alaqeel, A., Bromley, A., Chen, Y., Wong, J., Eesa, M., & Mitha, A. (2018). A refined experimental model of fusiform aneurysms in a rabbit carotid artery. Journal of Neurosurgery, 131(1). doi:10.3171/2018.2.JNS173168
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  Objective: Reliable animal models are an important aspect of translational research, especially for relatively uncommon clinical entities such as fusiform aneurysms. While several animal models exist, very few are tailored to cerebral fusiform aneurysms, which have unique attributes compared to abdominal fusiform aneurysms. The authors aimed to build from previous models to create a cerebral fusiform aneurysm model that is simple to use and reliable. Methods: Twelve female New Zealand White rabbits were assigned to 3 groups: group E, elastase only; group C, CaCl2 only; group EC, elastase + CaCl2. All rabbits underwent surgical exposure of the right common carotid artery (CCA) and 20 minutes of peri-carotid incubation with their respective chemicals. Angiography was performed 6 weeks later for arterial dilation measurements, with 50% increase in diameter being defined as fusiform aneurysm formation. The arterial segments, along with the contralateral CCAs, were harvested and assessed histologically for wall component measurements and elastin semiquantification. A separate rabbit underwent aneurysm creation per the group EC protocol and was treated with an endovascular flow-diversion device. Results: All of the group EC rabbits developed fusiform aneurysms (mean dilation of 88%), while none of the group E or group C rabbits developed aneurysms (p = 0.001). Histological analysis revealed increased internal elastic lamina fragmentation in the group EC aneurysms, which also had less tunica intima hyperplasia. All aneurysms exhibited thinning of the tunica media and reduction in elastin content. The use of an endovascular flow-diverting stent was successful, with complete parent vessel remodeling, as expected, 4 weeks after deployment. Conclusions: The peri-arterial application of combined elastase and CaCl2 to the CCA appears sufficient to reliably produce fusiform aneurysms after 6 weeks. Exposure to elastase or CaCl2 individually appears insufficient, despite the observed histological changes to the arterial wall. The proposed fusiform aneurysm model is able to accommodate endovascular devices, simulating the tortuous pathway experienced in using such devices in human cerebral aneurysms and thus is a satisfactory model to use in translational research.
• Ryu, W. H., Avery, M. B., Dharampal, N., Allen, I. E., & Hetts, S. W. (2017). Utility of perfusion imaging in acute stroke treatment: a systematic review and meta-analysis. Journal of neurointerventional surgery, 9(10), 1012-1016.
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  Variability in imaging protocols and techniques has resulted in a lack of consensus regarding the incorporation of perfusion imaging into stroke triage and treatment. The objective of our study was to evaluate the available scientific evidence regarding the utility of perfusion imaging in determining treatment eligibility in patients with acute stroke and in predicting their clinical outcome.
• Ogilvy, C. S., Chua, M. H., Fusco, M. R., Griessenauer, C. J., Harrigan, M. R., Sonig, A., Siddiqui, A. H., Levy, E. I., Snyder, K., Avery, M., Mitha, A., Shores, J., Hoh, B. L., & Thomas, A. J. (2015). Validation of a System to Predict Recanalization After Endovascular Treatment of Intracranial Aneurysms. Neurosurgery, 77(2), 168-73; discussion 173-4.
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  With increasing use of endovascular techniques in the treatment of ruptured and unruptured aneurysms, the issue of obliteration efficacy has become increasingly important. We have previously reported the Aneurysm Recanalization Stratification Scale, which uses accessible predictors including aneurysm-specific factors (size, rupture, and intraluminal thrombosis) and treatment-related features (treatment modality and immediate angiographic result) to predict retreatment risk after endovascular therapy.
• Haji, F., van Adel, B., Avery, M., Megyesi, J., & Young, G. B. (2014). Intracranial aneurysm rupture following intravenous thrombolysis for stroke. The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques, 41(1), 95-8.
• Ranger, A. M., Chaudhary, N., Avery, M., & Lownie, S. (2013). Brainstem cavernoma hemorrhage during pregnancy in a 15-year-old: description of a unique neurosurgical approach. Journal of child neurology, 28(10), 1312-5.
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  Cavernous haemangiomas, or cavernous malformations, have been reported during pregnancy, most of which have been either supratentorial or spinal lesions. We encountered a 15-year old pregnant patient with a rapidly progressive and haemorrhagic brainstem cavernous haemangioma. The case presented here describes the history and findings of this patient, as well as the less-commonly utilized technique we used to access the floor of the fourth ventricle via occipital craniotomy for complete macroscopic resection of this lesion, resulting in the gradual return of most of her neurological deficits.
• Ranger, A. M., Chaudhary, N., Avery, M., & Fraser, D. (2012). Central pontine and extrapontine myelinolysis in children: a review of 76 patients. Journal of child neurology, 27(8), 1027-37.
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  This study aimed to identify the causes and contributing factors, neurologic presentation, and outcomes of central pontine and extrapontine myelinolysis and to examine any trends in the presentation and course of these disorders over the past 50 years. Seventy-six pediatric cases were identified in the literature. Age, sex, decade of diagnosis, neurologic presentation, outcome, and attributed causes were extracted. The results showed that the diagnosis, course, and outcomes of central pontine and extrapontine myelinolysis clearly have changed over the past few decades. Early cases generally were diagnosed at autopsy as opposed to computed tomography or magnetic resonance imaging more recently. Ninety-four percent of cases prior to 1990 and only 7% of cases from 1990 onward resulted in patient mortality. The decade in which the case was reported was the strongest predictor of outcome (P < .001), followed by sodium dysregulation (P = .045) and dehydration (P = .07).
• Avery, M. (2011). Cavernous hemangioma presenting during pregnancy: a detailed literature review. J Pediatr Neurol.

Presentations

• Avery, M. (2024, June). Dural Arteriovenous Fistulas. University of Arizona Neurosurgery Didactic Conference.
• Avery, M. (2024, November). ENT & Neurosurgery: Better Together. University of Arizona Otolaryngology Grand Rounds.
• Avery, M. (2024, November). Pituitary Surgery. University of Arizona Endocrinology Grand Rounds.
• Avery, M. (2024, October). Pituitary Tumors. Mt Graham Regional Medical Center Grand Rounds.
• Avery, M. (2024, September). A Career in Neurosurgery. University of Arizona Medical Directive Society.
• Avery, M. (2023, April). A Career in Neurosurgery. University of Arizona Alpha Epsilon Delta Society.
• Avery, M. (2023, April). Pituitary Tumors from a Neurosurgical Perspective. University of Arizona Endocrinology Grand Rounds.
• Avery, M. (2023, August). Pterional and Supraorbital Approaches. University of Arizona Neurosurgery Didactic Conference.
• Avery, M. (2023, February). Pituitary Tumors. University of Arizona Neurosurgery Didactic Conference.
• Avery, M. (2023, March). Cerebellopontine Angle and Posterior Fossa. University of Arizona Neurosurgery Didactic Conference.
• Aguilar, P., Mamaril-Davis, J., & Avery, M. (2022, October). Recurrence Rates Following Interventional Treatment of Spinal Cord Arteriovenous Malformations: a Meta-Analysis. Arizona Neurosurgical Society Annual Meeting.
• Avery, M. (2022). Cerebral Aneurysms                     . University of Arizona Neuroscience Grand Rounds.
• Avery, M. (2022). Mesenchymal Stem Cell Therapy for Cerebral Aneurysms. University of Arizona Neuroscience Grand Rounds.
• Avery, M. (2022, April). Pituitary Gland. University of Arizona Neurosurgery Didactic Conference.
• Avery, M. (2022, August). Pterional and Supraorbital Approaches. University of Arizona Neurosurgery Didactic Conference.
• Avery, M. (2021). Invited Lecture at The 11th Annual Neuroscience Nursing Symposium. Pacific Neuroscience Institute.

Poster Presentations

• Samargandy, S., Avery, M., Le, C., & Chang, E. (2023, September). Comparing Physcial and Virtual "Digital Twin" Models of Endoscopic Skull Base Disorders for Pre-Operative Planning. American Rhinologic Society Annual Meeting.
• Mamaril-Davis, J., Aguilar, P., Avila, M., Dumont, T., & Avery, M. (2022, October). Recurrence Rates Following Interventional Treatment of Spinal Cord Arteriovenous Malformations: a Meta-Analysis. Congress of Neurological Surgeons Annual Meeting.
• Avery, M., & Mitha, A. P. (2018, January). Mesenchymal Stem Cells Localize to Developint Saccular Aneurysms. AANS/CNS Cerebrovascular Section Annual Meeting.
• Avery, M., & Mitha, A. P. (2017, July). Can Mesenchymal Stem Cells Inhibit Saccular Aneurysm Formation?. Society of NeuroInterventional Surgery Annual Meeting.
• Avery, M., & Mitha, A. P. (2017, September). Ocular Ischemia is a Significant Risk Ractor for Stroke. Canadian Stroke Congress.