식도의 예리한 이물은 내시경으로 제거하는 과정 중에도 출혈, 천공 등 심각한 합병증이 발생할 수 있다. 따라서 안전하게 제거하는 방법으로 지금까지 overtube, protector hood 등이 사용되어 왔다. 면도날은 흔하지 않은 식도 이물이지만, 크기가 크고 날카로운 날로 인해 제거하기가 쉽지 않다. 저자들은 일반적인 overtube의 내경보다 크고 식도에 매복된 면도날을 쐐기모양으로 고안한 overtube를 이용하여 안전하게 제거한 1예를 문헌 고찰과 함께 보고한다.

Foreign bodies in the upper esophagus should be removed as soon as possible to avoid serious complications. These foreign bodies can penetrate the bowel wall and cause severe complications. The peristalsis of the esophagus is not strong enough to prevent it from retaining swallowed objects. Hence, perforation from a foreign body is more likely to occur in the esophagus than in the rest of the gastrointestinal tract. A razor blade is a rare foreign body of the esophagus. Its sharpness and large size make it difficult to remove. A razor blade was very firmly impacted in the esophageal wall in our case, and the razor blade had not moved from the upper esophagus. A standard overtube has limitations to remove a razor blade inside the overtube`s lumen. We report here on a case of using a wedge resected overtube made it possible to successfully extract a razor blade and no serious complications occurred after extraction of the razor blade. (Korean J Gastrointest Endosc 2011;42:293-296)