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Aneurysm Surgery: Past, Present and Future. Mario Zuccarello, M.D. University of Cincinnati, Dept of Neurosurgery Mayfield Clinic. John Hunter (1728-1793) HUNTERIAN LIGATION. Hunterian Ligation. 461 patients with ICA ligation Mortality rate 20.7% Stroke rate 30%.
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Aneurysm Surgery:Past, Present and Future Mario Zuccarello, M.D. University of Cincinnati, Dept of Neurosurgery Mayfield Clinic
John Hunter (1728-1793) HUNTERIAN LIGATION
Hunterian Ligation • 461 patients with ICA ligation • Mortality rate 20.7% • Stroke rate 30% Sahs, Perret, &Locksley, 1969
Egas Moniz (1874-1955) 1ST CEREBRAL ANGIOGRAPHY IN 1927
Harvey Cushing (1869-1939) SILVER CLIP
Walter Dandy (1886-1946) 1ST CLIP ON ICA ANEURYSM
Aneurysm Surgery: Past • Dandy “ clipping of aneurysms is hopeless” • As late as the 1960s mean mortality 28.7% • Merritt in 1963 advised surgery only for aneurysms with large associated hematomas
“We need a different clip” Mayfield Connection • The problem • “How to clip a large basilar bifurcation aneurysm with a fragile neck and an adherent P1 segment” . . . Drake
Mayfield Connection • 1969 development of the fenestrated clip The Cincinnati Post, March 28, 1970
Proc Neurol Surg 9, 1978 Youmans 2, 1973
M. Gazi Yasargil (1925- ) OPERATING MICROSCOPE MODERN CLIPS