Long‐term outcomes of esophageal squamous cell carcinoma with invasion depth of pathological T1a‐muscularis mucosae and T1b‐submucosa by endoscopic resection followed by appropriate additional treatment

2021 ◽  
Author(s):  
Sakiko Naito ◽  
Toshiyuki Yoshio ◽  
Akiyoshi Ishiyama ◽  
Tomohiro Tsuchida ◽  
Junki Tokura ◽  
...  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ken Namikawa ◽  
Toshiyuki Yoshio ◽  
Shoichi Yoshimizu ◽  
Akiyoshi Ishiyama ◽  
Tomohiro Tsuchida ◽  
...  

AbstractIn Japan, preoperatively diagnosed T1a-muscularis mucosae or T1b-submucosa 1 (MM/SM1) esophageal squamous cell carcinoma (ESCC) is a relative indication for endoscopic resection (ER). We evaluated long-term outcomes in patients after ER for non-circumferential ESCC with a preoperative diagnosis of MM/SM1 invasion. We retrospectively reviewed 66 patients with a preoperative diagnosis of non-circumferential MM/SM1 ESCC endoscopically resected between 2010 and 2015. Patients were divided into low- (adequate follow-up) and high-risk (requiring additional treatment) groups for lymph node metastasis according to risk factors (submucosal invasion, lymphovascular invasion, or droplet infiltration) and long-term outcomes were analyzed. Pathological invasion to T1a-lamina propria mucosa, MM/SM1, and T1b-SM2 was seen in 22, 38, and 6 lesions, respectively. Overall, 71.2% patients were classified into the “adequate follow-up” group. Of these, only one patient had a lymph node recurrence, which was successfully treated by additional therapy. The remaining 28.8% patients were classified into the “requiring additional treatment” group, where no recurrences were observed after additional treatments. After a median follow-up of 58.6 months, no deaths happened due to ESCC. The 3- and 5-year overall survival rates were 93.6% and 88.7%, respectively. ER is a valid initial treatment for non-circumferential ESCC with preoperatively diagnosed MM/SM1 invasion.


2018 ◽  
Vol 50 (8) ◽  
pp. 833-838 ◽  
Author(s):  
Shoichi Yoshimizu ◽  
Toshiyuki Yoshio ◽  
Akiyoshi Ishiyama ◽  
Tomohiro Tsuchida ◽  
Yusuke Horiuchi ◽  
...  

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