Chikatoshi Katada1, Satoshi Tanabe2, Takuya Wada3, Kenji Ishido3, Takafumi Yano3, Yasuaki Furue3, Yuki Kondo3, Natsuko Kawanishi3, Sakiko Yamane3, Akinori Watanabe3, Mizutomo Azuma3, Wasaburo Koizumi3. 1. Department of Gastroenterology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0374, Japan. ckatada@med.kitasato-u.ac.jp. 2. Department of Research and Development Center for New Medical Frontiers, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0374, Japan. 3. Department of Gastroenterology, Kitasato University School of Medicine, 1-15-1 Kitasato, Minami, Sagamihara, Kanagawa, 252-0374, Japan.
Abstract
PURPOSE: Treatment strategies for superficial esophageal squamous cell carcinoma (S-ESCC) are determined mainly on the basis of the depth of invasion. We retrospectively studied the accuracy of the depth of tumor invasion, comprehensively assessed using the Japan Esophageal Society (JES) classification. METHODS: The study group comprised 256 patients who underwent narrow band imaging (NBI) magnifying endoscopy, and endoscopic submucosal dissection for S-ESCC. The depth of invasion of S-ESCC was classified into three groups: EP/LPM, MM/SM1, and SM2. The following variables were studied retrospectively: (1) the diagnostic accuracy of non-magnifying white-light endoscopy, (2) the diagnostic accuracy of type B vessels, (3) the diagnostic accuracy of avascular area (AVA), (4) the diagnostic accuracy of the JES classification, and (5) the diagnostic accuracy of comprehensive diagnosis. The depth of invasion was assessed by white-light non-magnifying endoscopy, followed by NBI magnifying endoscopy. RESULTS: The positive predictive value (PPV) of white-light non-magnifying endoscopy was 86% for EP/LPM, 53% MM/SM1, and 74% for SM2. The PPV of the diagnosis of type B vessels was 93% for EP/LPM, 62% for MM/SM1, and 74% for SM2. The PPV of the AVA diagnosis was 73% for EP/LPM, 89% for MM/SM1, and 100% for SM2. The PPV of diagnosis according to the JES classification was 93% for EP/LPM, 65% for MM/SM1, and 77% for SM2. The PPV of the comprehensive diagnosis was 94% for EP/LPM, 63%, for MM/SM1, and 75% for SM2. CONCLUSIONS: The additional use of NBI magnifying endoscopy can enhance the diagnostic accuracy of the depth of invasion in patients with S-ESCC.
PURPOSE: Treatment strategies for superficial esophageal squamous cell carcinoma (S-ESCC) are determined mainly on the basis of the depth of invasion. We retrospectively studied the accuracy of the depth of tumor invasion, comprehensively assessed using the Japan Esophageal Society (JES) classification. METHODS: The study group comprised 256 patients who underwent narrow band imaging (NBI) magnifying endoscopy, and endoscopic submucosal dissection for S-ESCC. The depth of invasion of S-ESCC was classified into three groups: EP/LPM, MM/SM1, and SM2. The following variables were studied retrospectively: (1) the diagnostic accuracy of non-magnifying white-light endoscopy, (2) the diagnostic accuracy of type B vessels, (3) the diagnostic accuracy of avascular area (AVA), (4) the diagnostic accuracy of the JES classification, and (5) the diagnostic accuracy of comprehensive diagnosis. The depth of invasion was assessed by white-light non-magnifying endoscopy, followed by NBI magnifying endoscopy. RESULTS: The positive predictive value (PPV) of white-light non-magnifying endoscopy was 86% for EP/LPM, 53% MM/SM1, and 74% for SM2. The PPV of the diagnosis of type B vessels was 93% for EP/LPM, 62% for MM/SM1, and 74% for SM2. The PPV of the AVA diagnosis was 73% for EP/LPM, 89% for MM/SM1, and 100% for SM2. The PPV of diagnosis according to the JES classification was 93% for EP/LPM, 65% for MM/SM1, and 77% for SM2. The PPV of the comprehensive diagnosis was 94% for EP/LPM, 63%, for MM/SM1, and 75% for SM2. CONCLUSIONS: The additional use of NBI magnifying endoscopy can enhance the diagnostic accuracy of the depth of invasion in patients with S-ESCC.
Entities:
Keywords:
Avascular area; Esophageal squamous cell carcinoma; Japan Esophageal Society classification; Magnifying endoscopy; Narrow band imaging; Type B vessels
Authors: Chan Hyuk Park; Dong-Hoon Yang; Jong Wook Kim; Jie-Hyun Kim; Ji Hyun Kim; Yang Won Min; Si Hyung Lee; Jung Ho Bae; Hyunsoo Chung; Kee Don Choi; Jun Chul Park; Hyuk Lee; Min-Seob Kwak; Bun Kim; Hyun Jung Lee; Hye Seung Lee; Miyoung Choi; Dong-Ah Park; Jong Yeul Lee; Jeong-Sik Byeon; Chan Guk Park; Joo Young Cho; Soo Teik Lee; Hoon Jai Chun Journal: Clin Endosc Date: 2020-03-30
Authors: Chan Hyuk Park; Dong-Hoon Yang; Jong Wook Kim; Jie-Hyun Kim; Ji Hyun Kim; Yang Won Min; Si Hyung Lee; Jung Ho Bae; Hyunsoo Chung; Kee Don Choi; Jun Chul Park; Hyuk Lee; Min-Seob Kwak; Bun Kim; Hyun Jung Lee; Hye Seung Lee; Miyoung Choi; Dong-Ah Park; Jong Yeul Lee; Jeong-Sik Byeon; Chan Guk Park; Joo Young Cho; Soo Teik Lee; Hoon Jai Chun Journal: Intest Res Date: 2020-10-13