Variation Trend of Rapid Shallow Breathing Index in Prediction of Ventilator Weaning Process_Chinese Journal of Respiratory and Critical Care Medicine

Authors：

MA Yujie , CAO Xiangyuan.

Intensive Care Unit, Affiliated Hospital of Ningxia Medical College. Yinchuan,Ningxia, 750004, ChinaCorresponding Author: CAO Xiang-yuan, E-mail: ccxyuan@ hotmail. com;

Corresponding author：

Keywords：

Mechanical ventilation; Rapid shallow breathing index; Ventilator weaning

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Objective To determine the usefulness of serial measurements of the rapid shallow breathing index ( f/VT , RSBI) as a predictor for successfully weaning of patients undergoing prolonged mechanical ventilation ( gt; 72 hours) . Methods 76 mechanically ventilated patients were prospectively analyzed. 120-min spontaneous breathing trial was conducted after the patients having fullfiled the traditional weaning criteria, and RSBI were continuously monitored by the ventilator at five time points ( 5, 15, 30,60, and 120 min) . A repeated measure of general linear model in SPSS 15.0 was conducted to analyze the data. Results 62 patients completed 120-minute spontaneous breath trial and in which 20 patients failed weaning. There was no significant difference of RSBI at five time points during weaning ( P gt;0. 05) . But the
variation trends of RSBI during weaning time were significant different between the successful weaning patients and the failed weaning patients ( P lt; 0. 05) . Conclusions In patients undergoing prolonged mechanical ventilation, the variation trend of RSBI is more valuable than single RSBI in the prediction of
successful weaning.

Citation： MA Yujie,CAO Xiangyuan.. Variation Trend of Rapid Shallow Breathing Index in Prediction of Ventilator Weaning Process. Chinese Journal of Respiratory and Critical Care Medicine, 2010, 9(6): 567-569. doi: Copy

1.	Meade M, Guyatt G, Cook D, et al. Predicting success in weaning from mechanical ventilation. Chest, 2001 , 120: 400S-424S.
2.	Alía I, Esteban A. Weaning from mechanical ventilation. Crit Care,2000, 4 : 72-80.
3.	Yang KL, Tobin MJ. A prospective study of indexes predicting the outcome of trials of weaning from mechanical ventilation. N Engl J Med, 1991, 324 : 1445 -1450 .
4.	屠欣. 撤机参数在机械通气患者呼吸机撤离中的应用价值. 中华结核和呼吸杂志, 2004, 27 : 829-832.
5.	陆志华, 方强, 王国彬. 浅快呼吸指数对COPD 机械通气患者撤机的意义. 中国急救医学, 2005 , 25: 165-166.
6.	高勇, 王海军, 徐海燕, 等. 浅快呼吸指数作为老年患者脱离呼吸机指标的评估. 中国呼吸与危重监护杂志, 2005, 4 : 432-434.
7.	Krieger BP, Isber J, Breitenbucher A, et al. Serial measurements of the rapid-shallow-breathing index as a predictor of weaning outcome in elderly medical patients. Chest, 1997 , 112: 1029-1034.
8.	张铂, 秦英智. 浅快呼吸指数在两种自主呼吸试验方法中的临床研究. 中国危重病急救医学, 2009, 21: 397-401 .
9.	Segal LN, Oei E, Oppenheimer BW, et al. Evolution of pattern of breathing during a spontaneous breathing trial predicts successful extubation. Intensive Care Med, 2010, 36: 487 -495.

1. Meade M, Guyatt G, Cook D, et al. Predicting success in weaning from mechanical ventilation. Chest, 2001 , 120: 400S-424S.
2. Alía I, Esteban A. Weaning from mechanical ventilation. Crit Care,2000, 4 : 72-80.
3. Yang KL, Tobin MJ. A prospective study of indexes predicting the outcome of trials of weaning from mechanical ventilation. N Engl J Med, 1991, 324 : 1445 -1450 .
4. 屠欣. 撤机参数在机械通气患者呼吸机撤离中的应用价值. 中华结核和呼吸杂志, 2004, 27 : 829-832.
5. 陆志华, 方强, 王国彬. 浅快呼吸指数对COPD 机械通气患者撤机的意义. 中国急救医学, 2005 , 25: 165-166.
6. 高勇, 王海军, 徐海燕, 等. 浅快呼吸指数作为老年患者脱离呼吸机指标的评估. 中国呼吸与危重监护杂志, 2005, 4 : 432-434.
7. Krieger BP, Isber J, Breitenbucher A, et al. Serial measurements of the rapid-shallow-breathing index as a predictor of weaning outcome in elderly medical patients. Chest, 1997 , 112: 1029-1034.
8. 张铂, 秦英智. 浅快呼吸指数在两种自主呼吸试验方法中的临床研究. 中国危重病急救医学, 2009, 21: 397-401 .
9. Segal LN, Oei E, Oppenheimer BW, et al. Evolution of pattern of breathing during a spontaneous breathing trial predicts successful extubation. Intensive Care Med, 2010, 36: 487 -495.

Chinese Journal of Respiratory and Critical Care Medicine

Variation Trend of Rapid Shallow Breathing Index in Prediction of Ventilator Weaning Process

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