Perioperative Outcomes of Patients Undergoing Lobectomy on Clopidogrel.

BACKGROUND: Perioperative management of antiplatelet therapy for patients undergoing pulmonary resection must balance the risk of cardiovascular events with that of hemorrhage. An optimal approach has not been defined in this population. We sought to characterize outcomes of patients undergoing pulmonary lobectomy on antiplatelet therapy with clopidogrel.

METHODS: A prospective institutional database was retrospectively reviewed to identify all patients undergoing pulmonary lobectomy from 2007 to 2015 who received perioperative clopidogrel. Patients were grouped according to the timing of clopidogrel discontinuation before operation: group I, 5 days or less; group II, 6 to 14 days; and group III, more than 14 days. Analyses were performed to assess the effect of timing of discontinuation on adverse events.

RESULTS: Sixty-two patients were identified and included in the analysis. The indication for clopidogrel was coronary artery disease in 44 patients (71%), 35 (56%) of whom had prior stent placement. The overall incidences of transfusion and major cardiovascular events were 16% (10 of 62) and 6.5% (4 of 62), respectively. Non-ST elevation myocardial infarctions occurred in 4 patients. Three were in patients with stents, all placed more than 1 year before the operation. There were no significant differences identified in estimated blood loss, operative duration, or perioperative deaths.

CONCLUSIONS: No significant outcome differences in perioperative cardiovascular or hemorrhagic events were identified among the groups. Although these findings suggest that clopidogrel may be discontinued shortly before the operation with limited risk of bleeding, we also found that holding therapy for more than 14 days preoperatively may be safe in appropriately selected patients.