Narrow band imaging under less-air condition improves the visibility of superficial esophageal squamous cell carcinoma

被引：7

作者：

Iwatsubo, Taro ^{[1
,2
]}

Ishihara, Ryu ^{[1
]}

Yamasaki, Yasushi ^{[3
]}

Tonai, Yusuke ^{[4
]}

Hamada, Kenta ^{[3
]}

Kato, Minoru ^{[5
]}

Suzuki, Sho ^{[6
,7
]}

Kono, Mitsuhiro ^{[1
]}

Fukuda, Hiromu ^{[1
]}

Shimamoto, Yusaku ^{[1
]}

Nakagawa, Kentaro ^{[1
]}

Ohmori, Masayasu ^{[1
]}

Arao, Masamichi ^{[1
,8
]}

Matsuno, Kenshi ^{[1
]}

Iwagami, Hiroyoshi ^{[1
]}

Inoue, Shuntaro ^{[1
]}

Nakahira, Hiroko ^{[1
]}

Matsuura, Noriko ^{[1
]}

Shichijo, Satoki ^{[1
]}

Maekawa, Akira ^{[1
]}

Kanesaka, Takashi ^{[1
]}

Takeuchi, Yoji ^{[1
]}

Higashino, Koji ^{[1
]}

Uedo, Noriya ^{[1
]}

Higuchi, Kazuhide ^{[2
]}

机构：

[1] Osaka Int Canc Inst, Dept Gastrointestinal Oncol, Chuo Ku, 3-1-69 Otemae, Osaka 5418567, Japan

[2] Osaka Med Coll, Internal Med 2, Osaka, Japan

[3] Okayama Univ Hosp, Dept Gastroenterol, Okayama, Japan

[4] Sanda City Hosp, Dept Gastroenterol, Sanda, Hyogo, Japan

[5] Osaka Univ, Dept Gastroenterol & Hepatol, Grad Sch Med, Osaka, Japan

[6] Univ Miyazaki Hosp, Div Endoscopy, Dept Gastroenterol & Hepatol, Miyazaki, Japan

[7] Univ Miyazaki Hosp, Ctr Digest Dis, Miyazaki, Japan

[8] Takayama Red Cross Hosp, Dept Gastroenterol, Gifu, Japan

来源：

BMC GASTROENTEROLOGY | 2020年 / 20卷 / 01期

关键词：

Narrow band imaging; Less air; Superficial esophageal squamous cell carcinoma; NEOPLASIA; CANCER; JAPAN; HEAD;

D O I：

10.1186/s12876-020-01534-2

中图分类号：

R57 [消化系及腹部疾病];

学科分类号：

摘要：

BackgroundThe current virtual chromoendoscopy equipment cannot completely detect superficial squamous cell carcinoma (SCC) in the esophagus, despite its development in the recent years. Thus, in this study, we aimed to elucidate the appropriate air volume during endoscopic observation to improve the visibility of esophageal SCC.MethodsThis retrospective study included a total of 101 flat type esophageal SCCs identified between April 2017 and January 2019 at the Department of Gastrointestinal Oncology, Osaka International Cancer Institute. Video images of narrow band imaging (NBI) under both less-air and standard-air conditions were recorded digitally. Videos were evaluated by five endoscopists. Relative visibility between less-air and standard-air conditions of the brownish area, brownish color change of the epithelium, and dilated intrapapillary capillary loop (IPCL) were graded as 5 (definitely better under less-air condition) to 1 (definitely worse under less-air condition), with 3 indicating average visibility (equivalent to standard-air observation).ResultsThe mean (standard deviation) visibility score of the brownish area, brownish color change of the epithelium, and dilated IPCLs under less-air condition were 3.94 (0.58), 3.73 (0.57), and 4.13 (0.60), respectively, which were significantly better than that under standard-air condition (p<0.0001). Esophageal SCC evaluated as <greater than or equal to>4 in the mean visibility score of the brownish area, brownish color change of the epithelium, and dilated IPCLs accounted for 50% (51/101 lesions), 34% (34/101 lesions), and 67% (68/101 lesions), respectively.ConclusionsThe present results suggested that NBI with less air might improve the visibility of flat type esophageal SCC compared with NBI with standard air. Less-air NBI observation may facilitate the detection of flat type esophageal SCC.Trial registrationThe present study is a non-intervention trial.

引用

页数：8

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