Moody L E, Lowry L, Yarandi H, Voss A
University of South Florida, College of Nursing, USA.
Clin Nurs Res. 1997 Nov;6(4):311-30; discussion 330-3. doi: 10.1177/105477389700600402.
This study identified psychophysiologic variables related to successful weaning in 27 ventilator-dependent patients with chronic bronchitis and emphysema (CBE) from two long-term care pulmonary-specialty hospitals in South Central Florida. Subjects were studied from admission until weaning occurred (successful weaning without mechanical ventilation) or until they were transferred without being weaned or died (unsuccessful weaning). The study subjects, 15 males and 12 females, ranged in age from 56 to 89. Baseline data on the variables (age, mastery, hope, social support, dyspnea, and rapid shallow breathing index [RSBI]) were not statistically significant by gender. The logistic regression model identified mastery and RSBI to be the best predictors of successful weaning (model chi 2 = 16.33, df = 2, and p value = .0003; prediction rate 82%).
这项研究在佛罗里达州中南部地区两家长期护理肺科专科医院的27名依赖呼吸机的慢性支气管炎和肺气肿（CBE）患者中，确定了与成功撤机相关的心理生理变量。对受试者从入院开始进行研究，直至撤机成功（无需机械通气成功撤机），或直至未撤机即被转院或死亡（撤机失败）。研究对象包括15名男性和12名女性，年龄在56岁至89岁之间。变量（年龄、掌控感、希望、社会支持、呼吸困难和快速浅呼吸指数[RSBI]）的基线数据在性别上无统计学意义。逻辑回归模型确定掌控感和RSBI是成功撤机的最佳预测指标（模型卡方值 = 16.33，自由度 = 2，p值 = .0003；预测率82%）。
