{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T21:35:11Z","timestamp":1789508111587,"version":"build-2803163510"},"reference-count":24,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2016,12,2]],"date-time":"2016-12-02T00:00:00Z","timestamp":1480636800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Digestive Endoscopy"],"published-print":{"date-parts":[[2017,3]]},"abstract":"<jats:sec><jats:title>Background and Aim<\/jats:title><jats:p>Small\u2010caliber endoscopes such as gastroscopes or pediatric colonoscopes are occasionally required to negotiate fixed or angulated colons. However, the use of a new ultrathin instrument (diameter 7.0 mm) narrower than other conventional colonoscopes has not been evaluated. The aim of the present study was to compare the use compare the use of an ultrathin colonoscope (<jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content>) with a pediatric colonoscope (<jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content>) for colonoscopy in older female patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A prospective, randomized, controlled trial was conducted in a single academic endoscopy unit. A total of 77 female patients aged \u226570 years undergoing unsedated colonoscopy were randomized to colonoscopy with a <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> (<jats:italic>n<\/jats:italic> = 39) or <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> (<jats:italic>n<\/jats:italic> = 38). Primary outcome measurement was the degree of pain using a numerical rating scale, and secondary outcomes were cecal intubation rate, ileal intubation rate, time to cecum and adenoma detection rate.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was a significant difference in reported pain using the numerical rating scale (median, <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> 1 <jats:italic>vs <\/jats:italic><jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> 4, <jats:italic>P<\/jats:italic> &lt; 0.0001). Cecal intubation rates were 97.4% in <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> and 92.1% in <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> (<jats:italic>P<\/jats:italic> = 0.36), and ileal intubation rates were 82.0% and 89.4% (<jats:italic>P<\/jats:italic> = 0.76), respectively. However, median times to cecum were significantly longer using <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> compared with <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> (15.2 min <jats:italic>vs<\/jats:italic> 11.1 min, <jats:italic>P<\/jats:italic> = 0.022). Adenoma detection rates were 30.7% in <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> and 26.3% in <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> (<jats:italic>P<\/jats:italic> = 0.80).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Colonoscopy using <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> was almost equivalent to that of <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> in older female patients, with significantly less pain compared with <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content>. <jats:styled-content style=\"fixed-case\">UTC<\/jats:styled-content> may be an alternative to <jats:styled-content style=\"fixed-case\">PDC<\/jats:styled-content> for the difficult colon.<\/jats:p><\/jats:sec>","DOI":"10.1111\/den.12761","type":"journal-article","created":{"date-parts":[[2016,11,15]],"date-time":"2016-11-15T11:48:51Z","timestamp":1479210531000},"page":"168-174","source":"Crossref","is-referenced-by-count":9,"title":["Ultrathin versus pediatric instruments for colonoscopy in older female patients: A randomized trial"],"prefix":"10.1111","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6812-2966","authenticated-orcid":false,"given":"Daiki","family":"Nemoto","sequence":"first","affiliation":[{"name":"Department of Coloproctology Aizu Medical Center Fukushima Medical University Aizuwakamatsu\u2010City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kenichi","family":"Utano","sequence":"additional","affiliation":[{"name":"Department of Coloproctology Aizu Medical Center Fukushima Medical University Aizuwakamatsu\u2010City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shungo","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Coloproctology Aizu Medical Center Fukushima Medical University Aizuwakamatsu\u2010City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Noriyuki","family":"Isohata","sequence":"additional","affiliation":[{"name":"Department of Coloproctology Aizu Medical Center Fukushima Medical University Aizuwakamatsu\u2010City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4529-3543","authenticated-orcid":false,"given":"David G.","family":"Hewett","sequence":"additional","affiliation":[{"name":"University of Queensland, School of Medicine Brisbane Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazutomo","family":"Togashi","sequence":"additional","affiliation":[{"name":"Department of Coloproctology Aizu Medical Center Fukushima Medical University Aizuwakamatsu\u2010City Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,12,2]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gie.2007.12.028"},{"key":"e_1_2_7_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(00)03205-0"},{"key":"e_1_2_7_4_1","doi-asserted-by":"publisher","DOI":"10.1111\/codi.12837"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1097\/MOG.0b013e328349cfc0"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gie.2006.08.046"},{"key":"e_1_2_7_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gie.2011.11.020"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-5107(89)72804-2"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1572-0241.2006.00790.x"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00384-007-0415-7"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-5107(00)70361-0"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1067\/mge.2002.124562"},{"key":"e_1_2_7_13_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0032-1309755"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gie.2011.07.032"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1055\/s-0032-1310063"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/den.12323"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-5107(89)72803-0"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0016-5107(96)70050-0"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.3748\/wjg.v6.i5.659"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gie.2006.06.084"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1572-0241.2008.01812.x"},{"key":"e_1_2_7_22_1","first-page":"2667","article-title":"Validation of an instrument to assess colon cleansing [abstract]","volume":"94","author":"Aronchick CA","year":"1999","journal-title":"Am. 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