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Gill Sviri, MD, MSC

Assistant Affiliate Member, Research Institute
Houston Methodist


Dr. Sviri graduated medical school at the Technion-Israel Institute of Technology. Dr. Sviri did his training in Neurosurgery in Haifa, Israel and did a clinical skull base and cerebrovascular fellowship at the University of Washington, where he is currently affiliated as assistant professor. Dr. Sviri is currently vice chairman in the department of neurosurgery at the Rambam (Maimonides) Health Care Campus in Haifa, Israel. The hospital provides Level I trauma services for more than 2 million north Israel residents. Dr. Sviri holds an appointment as a clinical assistant professor in neurosurgery at the Israel institute of Technology. He joined the Houston Methodist Research Institute Neurosciences Research Program in 2014 as an Assistant Affiliate Member.

Description of Research

Dr. Sviri’s research program focuses on clinical evaluation of cerebral blood flow and metabolism in traumatic brain injury and after spontaneous subarachnoid hemorrhage. His current research is focused on defining the relationship between cerebral autoregulation impairments and cerebral metabolism after traumatic brain injury. Dr. Sviri has studied and described the impact of cerebral vasospasm on blood flow to the brain stem and established a new transcranial Doppler grading criteria for posterior circulation vasospasm. Dr. Sviri has also described the appearance of cerebral vasospasm in a new imaging modality – the perfusion CT. The studies on TBI focused on evaluation of the time course for autoregulation recovery after severe traumatic brain injury, suggesting that some patients recovered their autoregulation early and some have a late recovery with an autoregulation paralysis for couple of weeks and more after the injury. Dr. Sviri also found that in severe traumatic brain injury the metabolic rate for oxygen is impaired as some of the patients have mild impairments and those with severe injury lost their ability to extract and to use oxygen.

Areas Of Expertise

Cerebral autoregulation Cerebral blood flow (CBF) Traumatic brain injury (TBI) Vasospasm
Education & Training

MSc, Bruce Rappaport Faculty of Medicine Technion-Israel Institute of Technology, Haifa

Decompressive craniectomy in elderly patients with traumatic brain injury
Paldor, I, Peso, D & Sviri, G 2020, Journal of Clinical Neuroscience, vol. 78, pp. 269-272.

Challenges in the treatment of breast cancer brain metastases: evidence, unresolved questions, and a practical algorithm
Meattini, I, Andratschke, N, Kirby, AM, Sviri, G, Offersen, BV, Poortmans, P & Kaidar Person, O 2020, Clinical and Translational Oncology.

Decreasing External Ventricular Drain-Related Infection Rates with Duration-Independent, Clinically Indicated Criteria for Drain Revision: A Retrospective Study
Katzir, M, Lefkowitz, JJ, Ben-Reuven, D, Fuchs, SJ, Hussein, K & Sviri, G 2019, World neurosurgery.

Risk factors for meningitis in neurosurgical patients with cerebrospinal fluid drains: prospective observational cohort study
Hussein, K, Rabino, G, Feder, O, Eghbaryeh, H, Zayyad, H, Sviri, G, Benenson, R & Paul, M 2019, Acta Neurochirurgica.

Minimally Invasive Surgery for Resection of Parapharyngeal Space Tumors
Duek, I, Sviri, G, Billan, S & Gil, Z 2017, Journal of Neurological Surgery, Part B: Skull Base.

Seasonal variation in spontaneous intracerebral hemorrhage in northern Israel
Telman, G, Sviri, G, Sprecher, E, Amsalem, Y & Avizov, R 2017, Chronobiology International, vol. 34, no. 5, pp. 563-570.

Combined endoscopic transcervical-transoral robotic approach for resection of parapharyngeal space tumors
Duek, I, Amit, M, Sviri, GE & Gil, Z 2017, Head and Neck, vol. 39, no. 4, pp. 786-790.

Intraspinal hypotension syndrome presents as transient quadriplegia
Katzir, M, Tov, S, Eran, A & Sviri, G 2016, British Journal of Neurosurgery, pp. 1-3.

Sviri, G 2016, Journal of Neurosurgery, vol. 124, no. 3, pp. 886-887.

Intrathecal or intraventricular therapy for post-neurosurgical Gram-negative meningitis: Matched cohort study
Shofty, B, Neuberger, A, Naffaa, ME, Binawi, T, Babitch, T, Rappaport, ZH, Zaaroor, M, Sviri, G & Paul, M 2016, Clinical Microbiology and Infection, vol. 22, no. 1, pp. 66-70.

Smart(phone) medicine
Katzir, M, Laarakker, AS, Sviri, G & Zaaroor, M 2016, Journal of Trauma and Acute Care Surgery, vol. 80, no. 1, pp. 171-172.

Iatrogenic metastasis of a colloid cyst
Katzir, M, Attia, M, Sviri, G, Zaaroor, M & Abeshaus, S 2015, Acta Neurochirurgica, vol. 157, no. 12, pp. 2201-2203.

Massive cerebral swelling immediately after cranioplasty, a fatal and unpredictable complication: report of 4 cases
Sviri, G 2015, Journal of Neurosurgery, vol. 123, no. 5, pp. 1188-1193.

Risk factors associated with death or neurological deterioration among patients with Gram-negative postneurosurgical meningitis
Neuberger, A, Shofty, B, Bishop, B, Naffaa, ME, Binawi, T, Babich, T, Rappaport, ZH, Zaaroor, M, Sviri, G, Yahav, D & Paul, M 2015, Clinical Microbiology and Infection.

Uncal herniation in a fully conscious patient - The sliding uncus syndrome
Katzir, M, Attia, M, Sviri, G & Zaaroor, M 2015, British Journal of Neurosurgery, vol. 29, no. 2, pp. 308-309.

Treatment and Outcome of Patients with Skull Base Chordoma: A Meta-analysis
Amit, M, NaAra, S, Binenbaum, Y, Billan, S, Sviri, G, Cohen, JT & Gil, Z 2014, Journal of Neurological Surgery, Part B: Skull Base, vol. 75, no. 6, pp. 383-390.

Transcranial approach to jugular paragangliomas
Sviri, G 2014, Operative Techniques in Otolaryngology - Head and Neck Surgery, vol. 25, no. 3, pp. 259-264.

Why mortality is still high with modern care of 613 evacuated mass lesions presented as severe head injuries 1999-2009
Levi, L, Guilburd, J, Soustiel, J, Sviri, G, Constantinescu, M & Zaaroor, M 2012, . in Intracranial Pressure and Brain Monitoring XIV. 114 edn, Acta Neurochirurgica, Supplementum, no. 114, Springer-Verlag Wien, pp. 301-304.

The Geriatric Scoring System (GSS) in meningioma patients - Validation
Cohen-Inbar, O, Sviri, G, Soustiel, JF & Zaaroor, M 2011, Acta Neurochirurgica, vol. 153, no. 7, pp. 1501-1508.

Cerebral blood flow and metabolism following decompressive craniectomy for control of increased intracranial pressure
Soustiel, JF, Sviri, G, Mahamid, E, Shik, V, Abeshaus, S & Zaaroor, M 2010, Neurosurgery, vol. 67, no. 1, pp. 65-72.

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