American Academy of Neurology (AAN)
76^th Annual Meeting in Denver, Colo. (April 13-18, 2024)

• Escamilla-Ocanas C, Morales N, Damani R, Bershad E, Hirzallah M, Siddiqui K, et al. The fragility index of randomized controlled trials for early blood pressure management of intracerebral hemorrhage. Presented at the American Academy of Neurology (AAN), 76^th Annual Meeting in Denver, Colo. (April 13-18, 2024).  
• Escamilla-Ocanas C, Morales-Cardona N, Akhbardeh A, Hirzallah M. Development of an automated algorithm for optic nerve sheath diameter measurement using transorbital ultrasound. Presented at the American Academy of Neurology (AAN), 76^th Annual Meeting in Denver, Colo. (April 13-18, 2024).  
• Escamilla-Ocanas C, Torrealba-Acosta G, Morales-Cardona N, Ramachandran L, Garcia C, Hirzallah M. Simulation-based brain death determination training for neurology residents. Presented at the American Academy of Neurology (AAN), 76^th Annual Meeting in Denver, Colo. (April 13-18, 2024).  

IEEE International Solid-State Circuits Conference (ISSCC)
San Francisco, Calif. (2024)

• Topalli G, Fan Y, Cheung MY, Veeraraghavan A, Hirzallah M, Chi T. 17.11 a 9mW ultrasonic through transmission transceiver for non-invasive intracranial pressure sensing. 2024 IEEE International Solid-State Circuits Conference (ISSCC), San Francisco, CA, USA, 2024, pp. 334-336, doi: 10.1109/ISSCC49657.2024.10454476. 

Neurocritical Care Society (NCS)
21^st Annual Meeting in Phoenix, Ariz. (Aug. 15-18, 2023)

• Escamilla-Ocanas CE, Morales-Cardona NC, Siddiqui K, Venkatasubba Rao CP, Bershad E, Hirzallah M, et al. High hypoperfusion index on CT perfusion is associated with an unfavorable discharge disposition on patients with large core infarct. Neurocrit Care. 2023;39(suppl 1):S167. 
• McGlennon MR, Tucker B, Escamilla-Ocanas CE, Morales NC, Steele EJ, Venkatasubba Rao CP, et al. Effects of balanced versus unbalanced hypertonic saline on renal function in neurocritical care. Neurocrit Care. 2023;39(suppl 1):S15. 
• Morales-Cardona NC, Escamilla-Ocanas CE, Siddiqui K, Venkatasubba Rao CP, Bershad E, Hirzallah M, et al. High hypoperfusion intensity ratio associated with prolonged ICU-stay and unfavorable discharge disposition in patients who undergo mechanical thrombectomy. Neurocrit Care. 2023;39(suppl 1):S168. 
• Ramachandran L, Ahmad A, Damani R, Rao C, Siddiqui K, Bershad E, et al. Hypoperfusion index and early ischemic changes. Neurocrit Care. 2023;39(suppl 1):S169. 
• Sanchez Mas E, Ramachandran L, Ahmad A, Achuo E, Damani R, Rao C, et al. Deep venous thrombosis after four factor prothrombin complex concentrate in a neurocritical care unit. Neurocrit Care. 2023;39(suppl 1):S180. 
• Siddiqui K, Ramachandran L, Shrestha B, Atwood H, D'Avignon S, Zuniga E, et al. Correlation of personalized and standard blood pressure thresholds with mortality in patients with intracranial hemorrhage and intraventricular hemorrhage. Neurocrit Care. 2023;39(suppl 1):S146. 

National Aeronautics and Space Administration (NASA)
2023 Human Research Program Investigators' Workshop in Galveston, Texas (Feb. 7-9, 2023)

• Bershad EM, Hirzallah MI, Williams MA, Malm J, Eklund A. Enhancing exploration platforms and analog definition intracranial pressure. Presented at the National Aeronautics and Space Administration (NASA), 2023 Human Research Program Investigators' Workshop in Galveston, Texas (Feb. 7-9, 2023).   [View poster]
• Bershad EM, Strangman G, Ivkovic V, Kramer L, Hasan K, Rao CP, et al. The long-term consequences of spaceflight on brain and eye health (SANS LTH). Presented at the National Aeronautics and Space Administration (NASA), 2023 Human Research Program Investigators' Workshop in Galveston, Texas (Feb. 7-9, 2023).  
• Hernández CS, Gil A, Bershad E, Urquieta E, Hirzallah MI, Wehse A, et al. Initial analysis of pre- and post-flight refractive error changes in commercial spaceflight participants. Presented at the National Aeronautics and Space Administration (NASA), 2023 Human Research Program Investigators' Workshop in Galveston, Texas (Feb. 7-9, 2023). [Oral Presentation] 
• Hirzallah MI, Bose S, Hu J, Maltz JS. Machine learning for the automation of optic nerve sheath diameter measurement: Current progress and future implications for crew autonomy. Presented at the National Aeronautics and Space Administration (NASA), 2023 Human Research Program Investigators' Workshop in Galveston, Texas (Feb. 7-9, 2023).   [View poster]
• Hirzallah MI, Lochner P, Hafeez MU, Lee AG, Krogias C, Dongarwar D, et al. Uncovering methodological inconsistencies in ultrasonographic optic nerve sheath diameter measurement and a path forward using expert consensus. Presented at the National Aeronautics and Space Administration (NASA), 2023 Human Research Program Investigators' Workshop in Galveston, Texas (Feb. 7-9, 2023).   [View poster]

Neurocritical Care Society (NCS)
20^th Annual Meeting in San Antonio, Texas (Oct. 17-21, 2022)

• Escamilla-Ocañas CE, Torrealba-Acosta G, Mandava P, Qasim MS, Gutiérrez-Flores B, Bershad E, et al. Patient and cost-benefit of utilizing checklists in the Neurocritical Care Unit. Presented at the Neurocritical Care Society (NCS), 20^th Annual Meeting in San Antonio, Texas (Oct. 17-21, 2022).  
• Hafeez MU, Manchanda R, Hirzallah MI. Methodological inconsistencies in optic nerve sheath diameter measurement using bedside ultrasound - A systematic review of literature. Neurocrit Care. 2022;37:S657. 

American Academy of Neurology (AAN)
74^th Annual Meeting in Seattle, Wash. (April 2-7, 2022)

• Torrealba-Acosta G, Escamilla-Ocanas C, Mandava P, Bershad E, Hirzallah M, Venkatasubba Rao C, et al. Implementation of systematic safety checklists in a neurointensive care unit: A quality and improvement study. Neurology. 2022;98(18 suppl):. [Oral Presentation] 

National Aeronautics and Space Administration (NASA)
Virtual 2022 Human Research Program Investigators' Workshop (Feb. 7-10, 2022)

• Bershad E, Hirzallah M, Damani R, Venkatasubba Rao C, Urquieta E, Wu J, et al. CADRE: Commercial astronaut data repository. Presented at the National Aeronautics and Space Administration (NASA), Virtual 2022 Human Research Program Investigators' Workshop (Feb. 7-10, 2022). [Oral Presentation] 
• Fall D, Lee A, Bershad E, Kramer L, Mader T, Clark J, et al. A review of optic nerve sheath diameter use in spaceflight and analogues with qualitative analysis and future directions. Presented at the National Aeronautics and Space Administration (NASA), Virtual 2022 Human Research Program Investigators' Workshop (Feb. 7-10, 2022).  
• Hirzallah M, Urquieta E, Wu J, Basner M, Shelhamer M, Sargsyan A, et al. Governance and institutional review board challenges for the Inspiration4 mission?s crew health research program (MESH -i4 and CADRE). Presented at the National Aeronautics and Space Administration (NASA), Virtual 2022 Human Research Program Investigators' Workshop (Feb. 7-10, 2022). [Oral Presentation] 

Neurocritical Care Society (NCS)
19^th Annual Meeting in Chicago, Ill. (Oct. 26-29, 2021)

• Cuesta Isabel IJ, Damani R, Bershad E, Venkatasubba Rao CP, Hirzallah M, Desai A, et al. The use of point of care compression ultrasound as a screening tool for lower extremity deep vein thrombosis in the neurocritical care unit. Neurocrit Care. 2021;35:S409. 

American Academy of Neurology (AAN)
Virtual 2021 Annual Meeting (April 17-22, 2021)

• Hafeez MU, Siddiqui K, Ahmad A, Bershad E, Hirzallah MI, Venkatasubba Rao CP, et al. Adverse neurological events amongst patients undergoing Extracorporeal Membrane Oxygenation (ECMO). Neurology. 2021;96(15 Suppl):2600. 
• Siddiqui K, Hafeez MU, Ahmad A, Bershad E, Hirzallah MI, Venkatasubba Rao CP, et al. EEG findings in patients undergoing extracorporeal membrane oxygenation (ECMO). Neurology. 2021;96(15 Suppl):2726. 

Society of Vascular and Interventional Neurology (SVIN)
Virtual 2020 Annual Meeting (Nov. 18-21, 2020)

• De la Garza C, Torrealba-Acosta G, Hassan AE, Jafari M, Desai A, Sellers A, et al. Predictors of functional outcome in post-mechanical thrombectomy patients. Presented at the Society of Vascular and Interventional Neurology (SVIN), Virtual 2020 Annual Meeting (Nov. 18-21, 2020).   [View poster]
• De la Garza C, Torrealba-Acosta G, Hassan AE, Moore S, Hall H, Jafari M, et al. Clinical description of post-mechanical thrombectomy patients treated at a comprehensive stroke center. Presented at the Society of Vascular and Interventional Neurology (SVIN), Virtual 2020 Annual Meeting (Nov. 18-21, 2020).   [View poster]
• De la Garza C, Torrealba-Acosta G, Hassan AE, Moore S, Hall H, Sellers A, et al. Cell count ratios as outcome predictors in acute ischemic stroke patients treated with mechanical thrombectomy. Presented at the Society of Vascular and Interventional Neurology (SVIN), Virtual 2020 Annual Meeting (Nov. 18-21, 2020).   [View poster]

Neurocritical Care Society (NCS)
Virtual 18^th Annual Meeting (Sept. 22-25, 2020)

• Venkatasubba Rao C, Escamilla-Ocanas CE, Torrealba-Acosta G, Qasim M, Hafeez M, Gutierrez-Flores B, et al. Early systolic blood pressure variability and hyponatremia are associated with cerebral vasospasm in aSAH patients. Neurocrit Care. 2020;32(1 suppl):S233. 
• Venkatasubba Rao C, Escamilla-Ocanas CE, Torrealba-Acosta G, Qasim M, Hafeez M, Gutierrez-Flores B, et al. Early systolic blood pressure variability is associated with a poor neurological outcome at discharge in aSAH patients. Neurocrit Care. 2020;32(1 suppl):S235. 
• Venkatasubba Rao C, Torrealba-Acosta G, Escamilla-Ocanas CE, Qasim M, Hafeez M, Gutierrez-Flores B, et al. Positive fluid balance during NICU stay is associated with decreased survival after aSAH. Neurocrit Care. 2020;32(1 suppl):S234. 

American Academy of Neurology (AAN)
72^nd Annual Meeting in Toronto, Ontario, Canada (April 25 - May 1, 2020)

• Escamilla-Ocanas CE, Torrealba Acosta G, Hirzallah M, Bershad E, Venkatasubba Rao C, Damani R. Utilization of systematic safety checklists to improve length-of-stay, infection rates, preventable complications and mortality at the Neurointensive Care Unit of the Baylor Saint Luke's Medical Center: A quality improvement study. Neurology. 2020;94(15 Suppl):1370. 

University of Pittsburgh Medical School
UPMC Critical Care Symposium in Pittsburgh, Penn. (Nov. 11, 2019)

• Hirzallah MI. Radiology 101 for nurses and respiratory therapists. Presented at the University of Pittsburgh Medical School, UPMC Critical Care Symposium in Pittsburgh, Penn. (Nov. 11, 2019).  

University of Pittsburgh
Mitchell P. Fink Scholar Day in Pittsburgh, Penn. (April 16, 2019)

• Hirzallah MI, Kiderman A, Nturibi EM, Balaban C, Molyneux BJ. Feasibility of virtual reality-based video-oculography to detect neurologic deterioration in the intensive care unit. Presented at the University of Pittsburgh, Mitchell P. Fink Scholar Day in Pittsburgh, Penn. (April 16, 2019).  

University of Pittsburgh
Mitchell P. Fink Scholar Day in Pittsburgh, Penn. (April 24, 2018)

• Khandker N, Hirzallah MI, Darby JD, Shutter LA. Telemedicine assessment of brain death examinations. Presented at the University of Pittsburgh, Mitchell P. Fink Scholar Day in Pittsburgh, Penn. (April 24, 2018). [Oral Presentation] 

National Aeronautics and Space Administration (NASA)
2018 Human Research Program Investigators' Workshop in Galveston, Texas (Jan. 22-25, 2018)

• Kramer LA, Hirzallah MI, Hasan KM, Younes K, Menon U, Macias B, et al. Quantitative magnetic resonance of cerebral blood flow hemodynamics in acute head down tilt. Presented at the National Aeronautics and Space Administration (NASA), 2018 Human Research Program Investigators' Workshop in Galveston, Texas (Jan. 22-25, 2018).  

Neurocritical Care Society (NCS)
15^th Annual Meeting in Waikoloa, Hawaii (Oct. 10-13, 2017)

• Hirzallah MI, Edquilang G, Cooper S, Vu KY, Xavier A, Choi HA. Causes of deterioration in neurological patients. Neurocrit Care. 2017;27(2 Suppl):S106. 

American Academy of Neurology (AAN)
67^th Annual Meeting in Washington, DC (April 18-25, 2015)

• Gildersleeve K, Hirzallah MI, Pandurengan P, Gonzales NR. Decompressive hemicraniectomy for spontaneous supratentorial intracerebral hemorrhage: A descriptive analysis. Neurology. 2015;84(Meeting Abstracts 1):P3.099. 

European Stroke Organisation (ESO)
1^st Conference in Glasgow, Scotland (April 17-19, 2015)

• Gildersleeve K, Gonzales NR, Hirzallah MI, Esquenazi Y, Moomaw C, Sekar P, et al. Decompressive hemicraniectomy for supratentorial spontaneous intracerebral hemorrhage: A retrospective case-control study using propensity score matching. Int J Stroke. 2015;10(2 Suppl):290. 

Texas Neurological Society
18^th Annual Winter Conference in Austin, Texas (Feb. 6-8, 2015)

• Nguyen A, Hirzallah MI, Ondo W. Pre-workout supplement triggered Call-Fleming Syndrome. Presented at the Texas Neurological Society, 18^th Annual Winter Conference in Austin, Texas (Feb. 6-8, 2015).  

International Neuromodulation Society (INS)
10^th World Congress in London, United Kingdom (May 21-26, 2011)

• Alo KM, Hirzallah MI, Richter EO. The sacral spine and coccygeal space. Presented at the International Neuromodulation Society (INS), 10^th World Congress in London, United Kingdom (May 21-26, 2011).  

University of Edinburgh
Edinburgh, Scotland (April 26, 2011)

• Hirzallah MI, Davies NO, Becker T, Becker CG. Ablation and protection of dopaminergic neurons in zebrafish embryos. Presented at the University of Edinburgh, Edinburgh, Scotland (April 26, 2011).  

University of Jordan
Scientific Day at Faculty of Medicine in Amman, Jordan (April 6, 2010)

• Hirzallah MI, Ehlayel AM, Amireh SO, Ghanem MT, Al-Samhouri AS, Quneibi SS, et al. Attitudes and perceptions of medical students at the University of Jordan towards medical research. Presented at the University of Jordan, Scientific Day at Faculty of Medicine in Amman, Jordan (April 6, 2010).