Comparison between low and high inspiratory flow rate of incentive spirometry on lung volume and dyspnea score after cardiac surgery : a randomized control trial.

ชื่อผู้วิจัย: 
ผศ.ดร.สุกัลยา กฤษณเกรียงไกร
Category: 
กายภาพบำบัด
Topic: 
Comparison between low and high inspiratory flow rate of incentive spirometry on lung volume and dyspnea score after cardiac surgery : a randomized control trial.
Abstract: 
The objective of this study was to compare the effects of high inspiratory flow rates (HF), low inspiratory flow rates (LF) of flow-oriented incentive spirometry (IS) and control of deep breathing exercise (DBE) on vital capacity (VC) and dyspnea score. Sixty-three patients undergoing cardiac surgery were randomly divided into three groups of control (n=21), low inspiratory flow rates (n=21) and high inspiratory flow rates (n=21) groups. The VC and dyspnea score were assessed on the pre-operative and the 1st-6th post-operative day. Data were analyzed using two-way repeated ANOVA. The VC of all the three groups showed significantly decrease on the 1st post-operative day and gradually increase nearly reach to the baseline on the 6th post-operative day. The dyspnea score was significantly increased on the 1st post-operative day and then returned to baseline on the 5th post-operative day for the HF groups and on the 6th post-operative day for the LF group but not reach the baseline for the control group. Both the VC and dyspnea score did not showed significant differences when compared between groups. This study concluded that in cardiac surgery patients, the IS training with HF and LF were not more effective in lung volume than the DBE. The dyspnea of using IS with HF was return to normal earlier than the IS with LF and the DBE.
Year Published: 
2559