{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,29]],"date-time":"2025-10-29T06:25:45Z","timestamp":1761719145905,"version":"3.40.5"},"reference-count":11,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2022,7,25]],"date-time":"2022-07-25T00:00:00Z","timestamp":1658707200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Gastro and Hepatol"],"published-print":{"date-parts":[[2022,9]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background and Aim<\/jats:title><jats:p>Bright endoscopic light sources improve the visibility of the intestinal mucosa. A newly launched endoscopic system developed by Olympus Corporation (Tokyo, Japan) in 2020 required modification to prevent heat\u2010induced tissue damage, which reportedly occurs during magnifying chromoendoscopy. We investigated the mechanism of this phenomenon by evaluating the rise in temperature of stained and unstained porcine mucosa using the new and previous endoscopic systems.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Surface temperatures of stained (India ink, 0.05% crystal violet, 0.5% methylene blue, or 0.2% indigo carmine) and unstained porcine mucosa were evaluated using infrared imaging after contact with the new endoscopic system before it was modified (system\u2010EVIS X1; scope\u2010GIF\u2010EZ1500) and compared with a previous endoscopic system (system\u2010EVIS EXERAIII; scope\u2010GIF\u2010H190). We performed histological analysis of the porcine mucosa stained with 0.05% crystal violet after contact with the new endoscope to evaluate the degree of tissue damage.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Surface temperatures remained &lt;\u00a040\u00b0C when the new endoscope was in contact with the unstained mucosa. However, the maximum surface temperature rose to &gt;\u00a070\u00b0C when the new endoscope was in contact with the stained mucosa (stained other than indigo carmine). Histological analysis revealed cavity formation in porcine epithelium stained with crystal violet where the endoscope made contact for \n. Using the previous endoscope, the maximum surface temperature of stained mucosa remained below approximately 60\u00b0C, and the surface temperature of the unstained mucosa remained below 30\u00b0C.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Heat transfer by light absorption could cause heat\u2010induced tissue damage during magnifying chromoendoscopy using the new endoscope.<\/jats:p><\/jats:sec>","DOI":"10.1111\/jgh.15963","type":"journal-article","created":{"date-parts":[[2022,7,21]],"date-time":"2022-07-21T09:39:17Z","timestamp":1658396357000},"page":"1801-1805","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Thermal tissue damage caused by new endoscope model due to light absorption"],"prefix":"10.1111","volume":"37","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5903-8677","authenticated-orcid":false,"given":"Yukiko","family":"Hiramatsu","sequence":"first","affiliation":[{"name":"Department of Gastroenterology and Hepatology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6067-3694","authenticated-orcid":false,"given":"Takahiro","family":"Utsumi","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hirokazu","family":"Higuchi","sequence":"additional","affiliation":[{"name":"Department of Medical Equipment Kyoto University Hospital  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2995-0483","authenticated-orcid":false,"given":"Jun","family":"Hayashi","sequence":"additional","affiliation":[{"name":"Department of Energy Conversion Science Kyoto University  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takahiro","family":"Horimatsu","sequence":"additional","affiliation":[{"name":"Institute for Advancement of Clinical and Translational Science (iACT) Kyoto University Hospital  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7675-0495","authenticated-orcid":false,"given":"Mitsuhiro","family":"Nikaido","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuki","family":"Nakanishi","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takahiro","family":"Shimizu","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Manabu","family":"Muto","sequence":"additional","affiliation":[{"name":"Department of Therapeutic Oncology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Seno","sequence":"additional","affiliation":[{"name":"Department of Gastroenterology and Hepatology Kyoto University Graduate School of Medicine  Kyoto Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2022,7,25]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1136\/gutjnl-2019-319631"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cgh.2009.11.009"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0030-1256663"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1053\/j.gastro.2019.04.014"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.vgie.2021.04.008"},{"key":"e_1_2_6_7_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-2008-1077507"},{"volume-title":"Handbook of Heat Transfer","year":"1998","author":"Rohsenow WM","key":"e_1_2_6_8_1"},{"key":"e_1_2_6_9_1","first-page":"695","article-title":"Studies of thermal injury: II. The relative importance of time and surface temperature in the causation of cutaneous burns","volume":"23","author":"Moritz AR","year":"1947","journal-title":"Am. J. Pathol."},{"volume-title":"First Degree Burn","year":"2017","author":"Pencle FJ","key":"e_1_2_6_10_1"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1111\/ddg.13504"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.5999\/aps.2014.41.4.317"}],"container-title":["Journal of Gastroenterology and Hepatology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jgh.15963","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/jgh.15963","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/jgh.15963","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,22]],"date-time":"2023-08-22T22:01:10Z","timestamp":1692741670000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/jgh.15963"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2022,7,25]]},"references-count":11,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2022,9]]}},"alternative-id":["10.1111\/jgh.15963"],"URL":"https:\/\/doi.org\/10.1111\/jgh.15963","archive":["Portico"],"relation":{},"ISSN":["0815-9319","1440-1746"],"issn-type":[{"type":"print","value":"0815-9319"},{"type":"electronic","value":"1440-1746"}],"subject":[],"published":{"date-parts":[[2022,7,25]]},"assertion":[{"value":"2022-05-25","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-07-11","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2022-07-25","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}