What question did this study set out to answer?

To present a method for intraoperatively localizing blind ends in long-gap esophageal atresia using fiber-guided red LED light.

February 22, 2026Surgical Case Reports0 citationsOpen Access

Fiber-Guided Red Light-Emitting Diode Localization of an Esophageal Blind End in Long-Gap Esophageal Atresia Surgery: A Case Report

HKHiroki KanamoriFujita Health University TTTomonori TsuchiyaFujita Health University YKYasuhiro KondoFujita Health University

Key Points

To present a method for intraoperatively localizing blind ends in long-gap esophageal atresia using fiber-guided red LED light.
Describes the use of Tumguide, a device transmitting red light through an optical fiber.
Highlights the surgical approach for identifying the lower esophageal blind end.
Successful intraoperative localization of the lower esophageal blind end was achieved using the device.
Improved visibility facilitated surgical procedures in long-gap esophageal atresia.

Abstract

INTRODUCTION: Esophageal atresia (EA) Gross type A is a congenital malformation in which both the upper and lower esophagus have blind ends without a tracheoesophageal fistula. The gap between the segments is often long (long-gap EA), making intraoperative localization challenging. We report a case in which the lower esophageal blind end was readily localized using Tumguide (Otsuka Pharmaceutical Factory, Tokushima, Japan), a device that transmits biologically transparent red light from a light-emitting diode (LED) through an optical fiber.

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