Abstract
Abstract Background Definitive chemoradiotherapy (dCRT) is an important treatment option for cStage III/IVa esophageal cancer. In our hospital, dCRT is the treatment of choice for cT4b. In this study, we investigated the technique, prognosis, and postoperative complications of salvage surgery after dCRT, with the aim of gaining knowledge to achieve both cure and safety. Methods The study included 36 patients who underwent conversion surgery after dCRT for thoracic esophageal cancer with suspected invasion of other organs between April 2012 and June 2021. The median age was 68 years (38–80 years). cT4b invasive organs were trachea and left main bronchus in 21 cases, aorta in 11 cases, and other organs in 4 cases. Thoracoscopic esophagectomy was performed in 13 patients. Reconstruction of the gastrointestinal tract via the posterior sternal route was the basic procedure. Resluts There was one case of death in hospital (3%). Postoperative complications (Clavien-Dindo Grade II or higher) were observed in 17 patients (47%), including pneumonia in 9 patients (25%) and suture failure in 5 patients (14%). The median postoperative hospital stay was 17 days. The incidence of postoperative pneumonia was lower in patients with higher preoperative serum Alb and preoperative PNI. The median recurrence-free survival was 14 months. Histopathologically, 7 patients (19%) showed cancerous remnants, and the prognosis was poor in patients with remnant disease, aortic invasion, or preoperative lymph node metastasis. Conclusion Perioperative outcomes were considered acceptable. Down staging is likely to be achieved after dCRT, but preoperative nutritional status should be improved. The prognosis is poor in patients with aortic invasion or lymph node metastasis, and the indication for chemoradiation should be carefully considered. Postoperative adjuvant therapy is an issue for the future.
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