A systematic review and meta-analysis of real-world studies evaluating the association between beta-blocker use and postoperative adverse events of carotid endarterectomy (CEA).
J Vasc Surg 2021;
75:1456-1465.e5. [PMID:
34788650 DOI:
10.1016/j.jvs.2021.10.052]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2021] [Accepted: 10/27/2021] [Indexed: 11/22/2022]
Abstract
OBJECTIVE
To estimate the association of beta-blocker use with postoperative adverse events of CEA based on real-world data.
METHODS
Electronic bibliographic sources (MEDLINE, EMBASE, and CENTRAL) were searched up to Apr. 2021 using a combination of thesaurus and free-text terms to identify the studies about the effect of beta-blockers on outcomes of CEA. The systematic review was conducted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. All observational studies and randomized controlled trials investigating the effect of preoperative beta-blockers on the outcomes of CEA were included. Independent extraction of articles by two authors using predefined data fields, including study quality indicators. All pooled analyses were based on a random-effects model.
RESULTS
A total of seven observational studies (six case-control studies and one cohort study) were included. Of the three case-control studies that examine the association of beta-blockers with composite postoperative adverse events, two studies including three datasets totaled 24161 participants were included in the quantitative synthesis and the overall results showed a statistically significant association between beta-blocker use and composite postoperative adverse events of CEA (OR 1.35, 95%CI 1.15- 1.59, p = .0003; I2 = 13%). Publication bias was not present in the meta-analysis (Egger's test showed non-significant results: p = .453). Two of the included studies utilized indirect measures of cerebral ischemia: intraoperative EEG, intraoperative hemodynamic indicators; and found a significant association between beta-blockers and intraoperative cerebral ischemia. Another two studies were included for meta-analysis on the association between beta-blockers and 30-day strokes or death of CEA (OR 1.61, 95%CI 0.98-2.65, p = .06; I2=0%). Of all included studies, there is only one cohort study that reported the association of beta-blockers with postoperative MI by chi-squared analysis (OR 1.96, 95%CI 1.86-2.07).
CONCLUSION
This systematic review suggested that there was an increased risk of postoperative adverse outcomes of CEA among beta-blocker users compared to non-users in the real world.
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