Unplanned reoperation after hepatectomy: an analysis of risk factors and outcomes.

BACKGROUND/PURPOSE: Reoperation is being increasingly utilized as a metric for surgical care quality. The aim of this study was to identify the incidence of and risk factors for unplanned reoperation following index hepatectomy.

METHODS

Pre, intra- and post-operative information of patients who underwent partial hepatectomy in 435 hospitals participating in the American College of Surgeons National Surgical Quality Improvement Program from 2011 to 2013 were analyzed.

RESULTS

343 (4%) of 9195 patients required reoperation within 30 days of index hepatectomy. The index procedures with the highest incidence of reoperation (%) were trisectionectomy (7%) and right hepatectomy (5%). Patients who underwent reoperation had increased index operative duration (323 ± 174 min versus 243 ± 125 min, p < 0.001), postoperative transfusion (57% versus 23%, p < 0.001), wound complications, cardiorespiratory, renal, thromboembolic, and infectious events. Hemorrhage was the most common indication for reoperation (10%). Male gender, ASA class 4, and right hepatectomy or trisectionectomy were independent predictors of reoperation (OR 1.4 [1.1-1.7], p = 0.007; 2.0 [1.3-3.1], p = 0.003; 1.6 [1.2-2.0], p = 0.001 and 2.5 [1.8-3.4], p < 0.001, respectively). All reoperations occurred during index hospitalization and resulted in longer mean length of stay (19 ± 17 days versus 7 ± 7 days, p < 0.001).

CONCLUSION

Reoperation is associated with several patient characteristics and procedural factors in this national sample. Knowledge of these factors can increase awareness of patients at risk for reoperation.