====== Gazi Yasargil ======

Mahmut Gazi Yasargil (born July 6, 1925) is a Turkish medical scientist and [[neurosurgeon]]. 

From 1953 until his retirement in 1993 he was first resident, chief resident and then [[professor]] and [[chairman]] of the Department of Neurosurgery, [[University Hospital Zurich]].

In 1999 he was honored as "Neurosurgery’s Man of the Century 1950–1999" at the [[Congress of Neurological Surgeons]] Annual Meeting.

He collaborated with [[Raymond Madiford Peardon Donaghy]] at the University of Vermont in developing [[microneurosurgery]]. 

The [[Extra intracranial bypass surgery]] (EIBS) has been proposed by [[Gazi Yasargil]] and [[Raymond Madiford Peardon Donaghy]] in [[1967]] to bypass an occlusive process in the arteries supplying the brain that is not accessible surgically in another way.

During microsurgery in the [[anterior communicating artery]] region, Yasargil noted and spared several branches of the anterior communicating artery
((Yasargil MG, Fox JL, Ray MW: The operative approach to aneurysms
of the anterior communicating artery. In Krayenbiihl H. (ed.). Advances
and Technical Standards in Neurosurgery, vol. 2. Vienna, Springer
Verlag, pp. 115-128, 1975)).

[[Gazi Yasargil]] first described standard techniques and procedures for [[pterional craniotomy]] (PC) in his publication in 1984.

Yaşargil treated epilepsy and brain tumors with instruments of his own design. 

[[Gazi Yasargil]] differentiated cerebral [[micro arteriovenous malformation]]s (micro-AVMs) from such [[angiographically occult arteriovenous malformation]]s (AVMs) and defined them as AVMs with a nidus of 1 cm or smaller
((Yaşargil MG. New York: Thieme; 1987. Microneurosurgery. Volume IIIA. AVM of the Brain, History, Embryology, Pathological Considerations, Hemodynamics, Diagnostic Studies, Microsurgical Anatomy.)).

Yasargil described four different types of intraoperatively observed anatomical [[sylvian fissure]] (SF) variants
((Yasargil MG. Stuttgart: Thieme Publishers; 1984. Operative anatomy, in Microneurosurgery; pp. 252–90.)).
((Microneurosurgery III-B: Avm of the Brain, Clinical Considerations, General and Special Operative Techniques,...Jan 15, 1988
by Mahmut Gazi Yasargil))

The classification system for [[tentorial meningioma]]s proposed by [[Gazi Yasargil]] is the most accurate and emphasizes the surgical anatomy
((Yasargil MG. Meningiomas. Microneurosurgery. In: Yasargil MG, editor. Microneurosurgery of CNS tumors. Vol. 4B. ***Publication city is missing: Stuttgart Georg, Thieme; 1996. pp. 134–65.)).

===== References =====