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- W351187958 abstract "The embolization of the cerebral arteriovenous malformation (AVM) is useful to prevent bleeding from the nidus under direct surgery. But various factors, such as emergency cases due to massive bleeding or when preoperative embolizations are difficult, have prevented it.Over the past 4 years we attempted embolization using fibrin glue and pyoktanine during direct surgery for such cases.In this procedure the craniotomy is done in the usual manner and the main feeder of the AVM is cannulated.Angiography is done prior to embolization via this cannulation tube. Then fibrinogen mixed with tiny amounts of pyoktanine and thrombin with contrast material is injected simultaneously. The feeders and the niduses of the AVM are clearly distinguished from the surrounded structures and hematoma after embolization because they are stained with pyoktanine. In addition the softness of the AVM is maintained. This makes ease of the AVM removal without destruction of the surrounding glial tissue. No cases showed massive bleeding after embolization during the removal. This embolization method with fibrine glue is very useful for several reasons. We can use this method for the emergency operations without special catheters. The AVM is very distinguishable visually because it is stained with pyoktanine.The problem of this method is transient hypotension just after the injection of fibrin glue and pyoktanine. This hypotension was observed in 2 of seven cases. We cannot explain the cause, but the fibrine glue and pyoktanine may be involved. This phenomenon is just transient. The blood pressure recovered immediately. In addition pulmonary embolism was not observed in these cases. This phenomenon should be studied further." @default.
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- W351187958 date "1997-01-01" @default.
- W351187958 modified "2023-09-26" @default.
- W351187958 title "The Efficacy of Embolization for the Arteriovenous Malformations with Fibrine Glue Stained by Pyoktanine during the Operation: Preliminary Report" @default.
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- W351187958 doi "https://doi.org/10.2335/scs1987.25.3_207" @default.
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