Open AccessIncidence of Aneurysmal Subarachnoid Hemorrhage with Procedures Requiring General Anesthesia in Patients with Unruptured Intracranial Aneurysms
Author(s) -
Hesham Masoud,
Vijaylakshmi Nair,
Adekorewale Odulate-Williams,
Sameer Sharma,
Grahame Gould,
Joshua Thatcher,
Thanh N. Nguyen
Publication year - 2018
Publication title -
interventional neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.07
H-Index - 5
eISSN - 1664-9737
pISSN - 1664-5545
DOI - 10.1159/000490582
Subject(s) - medicine , subarachnoid hemorrhage , aneurysm , incidence (geometry) , natural history , retrospective cohort study , anesthesia , surgery , physics , optics
Background: The role of general anesthesia in precipitating aneurysm rupture is not clearly defined. In this study, we aimed to assess the natural history of unruptured aneurysms in patients undergoing non-aneurysm-related procedures requiring general anesthesia. Methods: Retrospective review of consecutive patients with untreated intracranial aneurysms that underwent unrelated surgery with operative note documentation of general anesthesia. Events of intraoperative and postoperative subarachnoid hemorrhage were recorded to determine the incidence of rupture. Results: A total of 110 patients harboring 134 unsecured aneurysms were studied. The mean age was 56.5 years (range, 17–92), and 68% were women (n = 75/110). Mean aneurysm size was 3.5 mm (range 1.5–17). A total of 208 procedures were performed under general anesthesia. There were no events of subarachnoid hemorrhage in 5.7 years of follow-up. Conclusion: In our study, general anesthesia did not precipitate aneurysm rupture, and there were no instances of subarachnoid hemorrhage during the follow-up period. Our results suggest a benign natural history for aneurysms undergoing unrelated general anesthesia. However, this should be interpreted with caution given limitations related to our small sample size and retrospective study design.