title: Monitoring of cortical blood flow during temporary arterial occlusion in aneurysm surgery by the thermal diffusion method.
abstract: During aneurysm surgery, regional cortical blood flow (CoBF) was continuously monitored in 12 patients with a thermal diffusion flow probe in an attempt to assess the effects of temporary major arterial occlusion on blood flow and outcome. When the CoBF was above 30 ml/100 g/min, the safe period for temporary clipping applied distal to the perforators was 15 minutes. The occlusion time should be shortened when the CoBF is below 30 ml/100 g/min. Two patients suffered basal infarction, which was not detected by CoBF monitoring. Attention should be paid to the blood flow in the deep structures when a temporary clip is applied at a site proximal to the perforating branches. Direct measurement of CoBF may be of value in estimating the time that temporary occlusion of a major vessel can be tolerated.
authors.affiliation: Department of Neurological Surgery and Radiology, Kagawa Medical School, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Ohmoto
authors.forename: S
authors.initials: S
authors.lastname: Nagao
authors.forename: S
authors.initials: S
authors.lastname: Mino
authors.forename: T
authors.initials: T
authors.lastname: Fujiwara
authors.forename: Y
authors.initials: Y
authors.lastname: Honma
authors.forename: T
authors.initials: T
authors.lastname: Ito
authors.forename: M
authors.initials: M
authors.lastname: Ohkawa
mesh_terms: D000368:Aged; D002544:Cerebral Infarction / Q000000981:diagnostic imaging / Q000209:etiology; D002560:Cerebrovascular Circulation / Q000502:physiology*; D003080:Cold Temperature; D003250:Constriction; D004058:Diffusion; D005260:Female; D006358:Hot Temperature; D006801:Humans; D002532:Intracranial Aneurysm / Q000150:complications / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D014057:Tomography, X-Ray Computed