{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,27]],"date-time":"2026-04-27T22:59:04Z","timestamp":1777330744912,"version":"3.51.4"},"reference-count":43,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"4","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["JAHA"],"published-print":{"date-parts":[[2022,2,15]]},"abstract":"<jats:sec xml:lang=\"en\">\n            <jats:title>Background<\/jats:title>\n            <jats:p xml:lang=\"en\">Complications are a measure of procedural quality, yet variation in complication rates following catheter ablation of atrial fibrillation (AF) among hospitals has not been systematically examined. We examined institutional variation in the risk\u2010standardized 30\u2010day complication rates (RSCRs) following AF ablation which may suggest variation in care quality.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec xml:lang=\"en\">\n            <jats:title>Methods and Results<\/jats:title>\n            <jats:p xml:lang=\"en\">This cohort study included all patients &gt;18\u00a0years old undergoing AF ablations from 2012 to 2017 in Australia and New Zealand. The primary outcome was procedure\u2010related complications occurring during the hospital stay and within 30 days of hospital discharge. We estimated the hospital\u2010specific risk\u2010standardized complication rates using a hierarchical generalized linear model. A total of 25\u00a0237 patients (mean age, 62.5\u00b111.4\u00a0years; 30.2% women; median length of stay 1\u00a0day [interquartile range, 1\u20132\u00a0days]) were included. Overall, a complication occurred in 1400 (5.55%) patients (4.34% in hospital, 1.46% following discharge, and 0.25% experienced both). Bleeding (3.31%), pericardial effusion (0.74%), and infection (0.44%) were the most common complications while stroke\/transient ischemic attack (0.24%), cardiorespiratory failure and shock (0.19%), and death (0.08%) occurred less frequently. Among 46 hospitals that performed \u226525 ablations during the study period, the crude complication rate varied from 0.00% to 21.43% (median, 5.74%). After adjustment for differences in patient and procedural characteristics, the median risk\u2010standardized complication rate was 5.50% (range, 2.89%\u201310.31%), with 10 hospitals being significantly different from the national average.<\/jats:p>\n          <\/jats:sec>\n          <jats:sec xml:lang=\"en\">\n            <jats:title>Conclusions<\/jats:title>\n            <jats:p xml:lang=\"en\">Procedure\u2010related complications occur in 5.55% of patients undergoing AF ablations, although the risk of complications varies 3\u2010fold among hospitals, which suggests potential disparities in care quality and the need for efforts to standardize AF ablation practices among hospitals.<\/jats:p>\n          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