Intraoperative Cerebral Angiography in the Surgical Resection of Brain Arteriovenous Malformations
Issued Date
2026-05-01
Resource Type
eISSN
22288082
Scopus ID
2-s2.0-105037602257
Journal Title
Siriraj Medical Journal
Volume
78
Issue
5
Start Page
350
End Page
358
Rights Holder(s)
SCOPUS
Bibliographic Citation
Siriraj Medical Journal Vol.78 No.5 (2026) , 350-358
Suggested Citation
Tapunya K., Aurboonyawat T. Intraoperative Cerebral Angiography in the Surgical Resection of Brain Arteriovenous Malformations. Siriraj Medical Journal Vol.78 No.5 (2026) , 350-358. 358. doi:10.33192/smj.v78i5.277427 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/116614
Title
Intraoperative Cerebral Angiography in the Surgical Resection of Brain Arteriovenous Malformations
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Author's Affiliation
Corresponding Author(s)
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Abstract
Objective: This study aimed to determine the effectiveness of IOCA in reducing residual AVMs after surgery. Materials and Methods: We retrospectively reviewed all AVM resection surgeries performed at Siriraj Hospital between January 2008 and December 2022. The use of intraoperative cerebral angiography was recorded. The primary outcome was the presence of residual AVM on postoperative imaging. Results: The study included 92 patients, who were divided into two groups: those undergoing IOCA (44) and those undergoing surgery without IOCA (48). The initial incidence of residual AVMs prior to IOCA did not differ between the two groups (15.90% vs. 18.75%, p=0.720). However, postoperative imaging revealed significantly fewer missed residual AVMs in the IOCA group compared to the non-IOCA group (4.54% vs. 18.75%, p=0.036; absolute risk reduction (ARR) = 14.21% and a number needed to treat (NNT) = 7.04). The overall rate of acute complications did not differ significantly between the two groups (p = 0.108), but the mean length of hospital stay was higher in the non-IOCA group (19.31 vs. 8.57, p=0.001). Conclusion: Intraoperative cerebral angiography may help reduce the incidence of residual AVMs after surgery and decrease the length of hospital stays.