Abstract:
BACKGROUND:Meticulous haemostasis is one of the most important factors during microneurosurgical resection of brain arteriovenous malformation (AVM). Controlling major arterial feeders and draining veins with clips and bipolar coagulation are well-established techniques, while managing with bleeding from deep tiny vessels still proves to be challenging. This technical note describes a technique used by the senior author in AVM surgery for last 20 years in dealing with the issue highlighted. METHOD:"Dirty coagulation" is a technique of bipolar coagulation of small feeders carried out together with a thin layer of brain tissue that surrounds these fragile vessels. The senior author uses this technique for achieving permanent haemostasis predominantly in large and/or deep-seated AVMs. To illustrate the efficacy of this technique, we retrospectively reviewed the outcome of Spetzler-Martin (SM) grade III-V AVMs resected by the senior author over the last 5 years (2010-2015). RESULTS:Thirty-five cases of AVM surgeries (14 SM grade III, 15 SM grade IV and 6 SM grade V) in this 5-year period were analysed. No postoperative intracranial haemorrhage was encountered as a result of bleeding from the deep feeders. Postoperative angiograms showed complete resection of all AVMs, except in two cases (SM grade V and grade III). CONCLUSIONS:"Dirty coagulation" provides an effective way to secure haemostasis from deep tiny feeders. This cost-effective method could be successfully used for achieving permanent haemostasis and thereby decreasing postoperative haemorrhage in AVM surgery.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Kozyrev DA,Thiarawat P,Jahromi BR,Intarakhao P,Choque-Velasquez J,Hijazy F,Teo MK,Hernesniemi Jdoi
10.1007/s00701-017-3138-8subject
Has Abstractpub_date
2017-05-01 00:00:00pages
855-859issue
5eissn
0001-6268issn
0942-0940pii
10.1007/s00701-017-3138-8journal_volume
159pub_type
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