수술후 환자체위 변화가 호흡능에 미치는 영향

Abstract

It is undesirable to have postoperative hypoxemia. Respiratory function were compared with two different positions: one is horizontal supine, the other is 5°head down and I5°upper body-up supine position, for the preventive measure of postoperative hypoxemia by estimating ventilatory values (minute venti Iat ion, vital capacity, frequency) with Wright's spirometer and pH, PaC02 and PaO, with IL 213 blood gas analyzer. Following results were Obtained. 1) It was noted increased PaCO, in the upper body-up supine position than in the horizontal supine position with and without oxygen inhalations. 2) It was noted increased vital capacity in the upper body-up supine position than in the horizontal supine position with and without oxygen inhalations. 3) No changes in minute ventilation, frequency, pH and PaC02 noted in above two different positions with and without oxygen inhalations. 4) Increased PaO, and vital capacity induced yb patient's position changes might be related to incr< lased functional residual capacity.