Background
Postoperative complications after esophagectomy for esophageal cancer have a negative effect on patients' survival. Although postoperative complications are more frequently observed after salvage esophagectomy than after planned esophagectomy, the effects of postoperative complications on long-term oncologic outcomes after salvage esophagectomy remain unclear.
Methods
This retrospective study of 70 esophageal cancer patients after definitive chemoradiotherapy (dCRT) compared long-term outcomes between those with and without complications. The association between morbidity and overall survival (OS) was evaluated by a Cox regression analysis. To identify the risk factors for pulmonary complications, logistic regression analysis was carried out.
Results
Postoperative complications occurred in 42 (60.0%) patients. Pulmonary complications and anastomotic leakage occurred in 23 (32.9%) and 9 (12.9%) patients, respectively. Overall complications and anastomotic leakage did not affect long-term outcomes. Survival was significantly worse for patients with pulmonary complications. Radiation dose (<60 Gy), response to dCRT (complete), ypStage (0-II), residual disease (R0), and pulmonary complications (negative) were independent factors related to a favorable OS. BMI (<20 kg/m2), ASA-PS (2-3), and radiation dose (>60 Gy) were significant factors affecting the occurrence of pulmonary complications.
Conclusions
Development of postoperative pulmonary complications was independently associated with poor prognosis in patients who underwent salvage esophagectomy after dCRT.
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