Acosta F
Hahnemann University, Respiratory Therapy School, Philadelphia, Pa.
Heart Lung. 1988 May;17(3):299-301.
Weaning patients with chronic obstructive pulmonary disease from mechanical ventilators is occasionally a long and difficult process complicated by the patient's fear of losing his or her breath during the weaning procedure. A case is presented of an anxious 58-year-old man who was taught to relax using biofeedback and progressive relaxation during aerosol "T-piece" weaning trials. The relaxation effect was elicited by having the patient contract and relax specific muscle groups in a progressive manner, to experience the difference between the states. Ear oximetry served as physiologic feedback as well as a safety feature in the event of oxygen desaturation during exercise. During and after the exercises he felt secure breathing without the ventilator as measured by the physiologic parameters: heart rate, respiratory rate, and oxygen saturation determined by oximetry.
慢性阻塞性肺疾病患者撤离机械通气偶尔是一个漫长而艰难的过程，患者在撤机过程中担心失去呼吸会使情况变得复杂。本文介绍了一例58岁焦虑男性患者的病例，在雾化“T型管”撤机试验期间，他通过生物反馈和渐进性放松训练学会了放松。通过让患者逐步收缩和放松特定肌肉群来引发放松效果，以体验不同状态之间的差异。耳部血氧测定既作为生理反馈，又在运动过程中出现氧饱和度下降时起到安全保障作用。在运动期间及之后，根据生理参数（心率、呼吸频率和通过血氧测定确定的氧饱和度）测量，他感觉在没有呼吸机的情况下呼吸也很安全。
