• Abramo Aziz Rizk, Kristof Nijs, Anne T Di Donato, Nahemah Hasanaly, Naeema S Masohood, and Tumul Chowdhury.
• Faculty of Health Sciences, McMaster University, Hamilton.
• J Neurosurg Anesthesiol. 2025 Jan 14.

AbstractAfter intracranial surgery, sympathetic overdrive and increased blood catecholamine levels can contribute to postoperative hypertension, a significant clinical problem. The objective of this review was to summarize, quantify, and assess the epidemiological perspective of post-craniotomy hypertension and its association with adverse outcomes. This PROSPERO-registered systematic review was conducted following PRISMA guidelines. We searched electronic databases for studies that investigated adult patients who had elective craniotomy for any indication and reported hypertension within 72 hours postoperatively. Study quality was assessed using the Newcastle-Ottawa scale. Twenty-one studies, including 2602 patients, were identified for inclusion in this review. Multiple thresholds and criteria for defining post-craniotomy hypertension were used across studies. The pooled incidence of post-craniotomy hypertension from 13 studies (2279 patients) was 30% [95% CI, 15%-50%]. Post-craniotomy hypertension was associated with a 2.6 times higher risk of having an intracerebral hemorrhage within 72 hours after surgery (pooled risk ratio, 2.63; 95% CI, 1.16-5.97). There were insufficient data to investigate the quantitative association of post-craniotomy hypertension with 30-day adverse events. In summary, 1 out of 3 patients exhibited hypertension post-craniotomy, and this was associated with a significantly higher risk of having intracranial hemorrhage within 72 hours post-procedure. A generally accepted and clinically relevant criteria for post-craniotomy hypertension should be defined.Copyright © 2025 Wolters Kluwer Health, Inc. All rights reserved.

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