• J. Vasc. Surg. · Jul 2014

    Predictors and consequences of unplanned hospital readmission within 30 days of carotid endarterectomy.

    • Karen J Ho, Arin L Madenci, Marcus E Semel, James T McPhee, Louis L Nguyen, C Keith Ozaki, and Michael Belkin.
    • Division of Vascular Surgery, Northwestern Memorial Hospital, Chicago, Ill.
    • J. Vasc. Surg. 2014 Jul 1;60(1):77-84.

    ObjectiveIn the United States, vascular surgeons frequently perform carotid endarterectomy (CEA). Given the resource burden of unplanned readmission (URA), we sought to identify the predictors and consequences of URA after this common vascular surgery procedure to identify potential points of intervention.MethodsUsing a prospective single-institution database, we retrospectively identified consecutive patients undergoing CEA (2001-2011). Demographic and perioperative factors were prospectively collected. The primary end point was 30-day postdischarge URA after CEA. The secondary end point was 1-year survival. We performed a univariable analysis for URA followed by a multivariable Cox model. A Kaplan-Meier analysis was performed for 1-year survival.ResultsDuring the study period, 840 patients underwent 897 CEAs. The 30-day postdischarge overall readmission rate and URA rate were 8.6% and 6.5%, respectively. Most URA patients (n = 42; 73.4%) were readmitted for a CEA-related reason (headache, cardiac, hypertension, surgical site infection, bleeding/hematoma, stroke/transient ischemic attack, dysphagia, or hyperperfusion syndrome). Seventeen patients (29.3%) had more than one reason for URA. Median time to URA was 4 days (interquartile range, 1-9 days). Postoperative length of stay, indication for CEA, and discharge destination were not associated with URA. In multivariable analysis, in-hospital occurrence of congestive heart failure (hazard ratio [HR], 15.1; 95% confidence interval [CI], 4.7-48.8; P < .001), stroke (HR, 5.0; 95% CI, 1.8-14.0; P < .001), bleeding/hematoma (HR, 3.1; 95% CI, 1.4-6.9; P = .003), and prior coronary artery bypass grafting (HR, 2.0; 95% CI, 1.2-3.5; P = .01) were significantly associated with URA. Patients in the URA group also had decreased survival during 1 year (91% vs 96%; P = .01, log-rank).ConclusionsThe 30-day URA rate after CEA is low (6.5%). Prior coronary artery bypass grafting and in-hospital postoperative occurrence of stroke, bleeding/hematoma, and congestive heart failure identify those at increased risk of URA, and URA signals increased long-term risk of postoperative mortality.Copyright © 2014 Society for Vascular Surgery. Published by Mosby, Inc. All rights reserved.

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