Abstract

The relative safety and efficacy of left atrial appendage closure (LAAC) for atrial fibrillation (AF) in patients with chronic kidney disease (CKD) have not been well defined. To evaluate the results in this cohort, we conducted a systematic review and meta-analysis of observational studies. We searched the PubMed, EMBASE, Web of Science, and Cochrane Library databases from inception to January 2023 for all relevant studies. Our inclusion criteria were met by twelve observational studies that included 61324 patients altogether. Compared with no CKD group, in-hospital mortality (OR: 2.84, 95% CI: 2.12-3.81, p<0.01, I2 = 0%), acute kidney injury (AKI) (OR: 4.39,95% CI:4.00-4.83, P<0.01, I2 = 3%), major bleeding events (OR: 1.44, 95% CI: 1.29-1.60, p<0.01 I2 = 0%), and pericardial effusion/tamponade (OR 1.30; 95% CI 1.13-1.51, p < 0.01; I2 = 0%) were more common in the CKD group, especially in patients with end-stage renal disease (ESRD). No significant difference was observed in the occurrence of stroke (OR: 1.24, 95% CI: 0.86-1.78, P = 0.25, I2 = 0%), LAAC success rates (OR: 1.02, 95% CI: 0.33-3.16, p = 0.97, I2 = 58%) and vascular access complications (OR: 1.13, 95% CI: 0.91-1.39, p = 0.28, I2 = 0%) between the two groups. During the follow-up, there was no difference in the risk of stroke between the two groups. CKD patients who receive LAAC have a greater risk of in-hospital mortality, AKI, pericardial effusion/tamponade, and major bleeding events than those without CKD, especially in patients with ESRD. No significant difference in the risk of stroke was found in the long-term follow-up after LAAC between the two groups, demonstrating a similar efficacy of LAAC to prevent stroke in CKD patients.

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