Impact of the endoscopist's experience on the negative predictive value of capsule endoscopy

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• 作者：Benito Velayos Jimé ; nez ; ^{benitovelayos@hotmail.com} ; Noelia Alcaide Suá ; rez ; Guillermo Gonzá ; lez Redondo ; Luis Ferná ; ndez Salazar ; Rocí ; o Aller de la Fuente ; Lourdes del Olmo Martí ; nez ; Lourdes Ruiz Rebollo ; José ; Manuel Gonzá ; lez Herná ; ndez
• 关键词：Capsule endoscopy ; Learning curve ; Obscure gastrointestinal bleeding ; Training ; Reading ; Negative predictive value
• 刊名：Gastroenterología y Hepatología (English Edition)
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：40
• 期：1
• 页码：10-15
• 全文大小：344 K
• 卷排序：40

文摘

The impact of the accumulated experience of the capsule endoscopy (CE) reader on the accuracy of this test is discussed.AimTo determine whether the negative predictive value of CE findings changes along the learning curve.MethodsWe reviewed the first 900 CE read by 3 gastroenterologists experienced in endoscopy over 8 years.These 900 CE were divided into 3 groups (300 CE each): group 1 consisted of the sum of the first 100 CE read by each of the 3 endoscopists; group 2, the sum of the second 100 and groups 3, the sum of the third 100.Patients with normal CE were monitored for at least 28 months to estimate the negative predictive value.ResultsA total of 54 (18%) CE in group 1, 58 (19.3%) in group 2 and 47 (15.6%) in group 3 were normal, although only 34 patients in group 1, 38 in group 2 and 36 in group 3 with normal CE completed follow up and were eventually studied.The negative predictive value was 88.2% in group 1, 89.5% in group 2 and 97% in group 3 (p > .05).ConclusionThe negative predictive value tended to increase, but remained high and did not change significantly after the first 100 when readers are experienced in conventional endoscopy and have preliminary specific training.