Effect of flow and volume-oriented incentive spirometer exercise on the hemodynamic parameters in cardiac surgery patients. Pilot interventional study

Abstract

Background: The 2 types of incentive spirometers (flow and volume-oriented) prescribed after cardiac surgery demonstrate a difference in the pattern of breathing, diaphragm mobility, pulmonary function test. Limited research is available on effect of incentive spirometer on hemodynamic parameters. Purpose: To provide hemodynamic perspective for preference of a specific type of incentive spirometer after cardiac surgery. Method: Ideal method of performing breathing on their prescribed incentive spirometer was explained. On 2nd day post surgery, heart rate, respiratory rate, oxygen saturation and blood pressure were noted immediately before and after performing 8 breaths on incentive spirometer. Results: The intergroup comparison i.e., difference between changes caused by flow and volume-oriented incentive spirometers are statistically insignificant. The intra group comparison, the changes in hemodynamic parameters by flow and volume-oriented incentive spirometers are statistically insignificant, except for heart rate with flow-oriented incentive spirometers showed statistically significant increase. Conclusions: There is no difference in the impact of flow oriented and volume-oriented Incentive spirometers on hemodynamic parameters in post cardiac surgery patients. KEY WORDS: Incentive spirometer, Cardiac surgery, Heart rate, Blood pressure, Respiratory Rate, Oxygen saturation.