Ventilation Difficulty Caused by Obstructed Heated Breathing Circuit

Author:

Kwon Jiyeon1ORCID,Kang Eunsu1,Shin Sunghyun1,Lee Byeongcheol1,Ko Myoungjin1,Kim Sehun1,Lee Soojee2

Affiliation:

1. Department of Anesthesia and Pain Medicine, Inje University Haeundae Paik Hospital, 875 Haeundae-ro, Haeundae-gu, Busan 48108, Republic of Korea

2. Department of Anesthesia and Pain Medicine, Inje University Busan Paik Hospital, 75 Bokji-ro, Busanjin-gu, Busan 47392, Republic of Korea

Abstract

For perioperative hypothermia prevention, a heated, humidified breathing circuit equipped with a fluid-warming unit inside the inspiratory limb has been developed. We report a ventilation difficulty caused by an obstructed heated breathing circuit. Cotton surrounding the hot wire, temperature sensor, and fluid tubing in the distal inspiratory limb was irregularly thicker than that of a normal circuit and nearly blocked the lumen. Despite carrying out routine checks on the anesthesia workstation preoperatively, we failed to make a prediagnosis by omitting the flow test after changing the circuit. This case puts emphasis on a routine flow test with a meticulous examination of the heated breathing circuit before every procedure.

Publisher

MDPI AG

Subject

General Medicine

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