Additional Radiotherapy With or Without Chemotherapy Following Endoscopic Resection for Stage I Esophageal Carcinoma: A Pilot Study

Autor: Xu Yang MD, Yu Men MD, Jianyang Wang MD, Jingjing Kang MD, Xin Sun MD, Maoyuan Zhao MD, Shuang Sun MD, Meng Yuan MD, Yongxing Bao MD, Zeliang Ma MM, Guiqi Wang MD, Zhouguang Hui MD
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Technology in Cancer Research & Treatment, Vol 20 (2021)
Druh dokumentu: article
ISSN: 1533-0338
15330338
DOI: 10.1177/15330338211048051
Popis: Objective: To evaluate the safety and efficacy of additional radiotherapy after endoscopic resection (ER) for stage I esophageal carcinoma (EC) with high-risk factors. Materials and methods: Patients with stage cT1N0M0 EC who underwent ER and additional radiotherapy between January 2010 and August 2019 at our institution were retrospectively included. Overall survival (OS), disease-free survival (DFS), cancer-specific survival (CSS), local control rate, regional control rate, common acute toxicities, esophageal stricture, and dysphagia were analyzed. Results: Thirty-one consecutive patients were included in the study. The median age was 62 years (range, 49-78). Thirty patients (96.8%) had squamous cell carcinoma, and one patient (3.2%) had adenosquamous cell carcinoma. Twenty-six patients (83.9%) had submucosal invasion, 15 patients (48.4%) had lymphovascular invasion, and one patient (3.2%) had a venous invasion. The 1-, 3-, and 5-year OS rates were 100.0%, 86.9%, and 68.5%, respectively. The corresponding DFS rates were 100.0%, 85.2%, and 75.8%, respectively. The corresponding CSS rates were 100.0%, 89.8%, and 78.6%, respectively. The local and regional control rates were 100.0% and 93.5%, respectively. No grade 4-5 acute toxicities were observed. Fifteen patients (48.4%) were endoscopically diagnosed with esophageal strictures after ER. At the last follow-up, 28 patients (90.5%) were able to eat a regular diet, one patient (3.2%) could eat a soft diet, one needed a semifluid diet, and only one (3.2%) had to eat a fluid diet. Conclusions: For patients with stage I EC, additional radiotherapy following ER is safe and effective, with the swallowing function well-preserved. Nevertheless, prospective studies are needed to verify these results.
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