International Journal of Science and Research (IJSR)

International Journal of Science and Research (IJSR)
Call for Papers | Fully Refereed | Open Access | Double Blind Peer Reviewed

ISSN: 2319-7064


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Research Paper | Physiotherapy | India | Volume 12 Issue 5, May 2023


To Evaluate the Effect of Manual Hyperinflation on Lung Compliance and PaO2/FIO2 Ratio on Stable Ventilated Post Coronary Artery Surgery (CAS) Patient using Laerdal Circuit

Sagar Ramesh Deshpande | Prakashkumar J. Patel [4]


Abstract: Background & objectives: The aim of this study was to assess the effect of Manual Hyperinflation on lung compliance and PaO2/FIO2 ratio on stable ventilated post coronary artery surgery (CAS) patient using laerdal circuit. Patients and Methods: Total number of 90 participants of both the gender with age group between 55 to 77 years, post - operative CABG patients were to be divided in to two groups i. e. group A (experimental group) and group B (control group). Study duration was 6 Months. Sampling techniques was Simple random sample techniques. All patients who consented to the study were ventilated post - operatively on ventilator. Postoperative data were collected, and the commencement of the study was done within 1 - 2 hours of the patient received in recovery room. Manual hyperinflation was delivered via laerdal circuit with attached self - inflating bag of 1.6 litre. A pressure cuff manometer was incorporated to ensure the pressure maintained below 40 cmH2O Patient was positioned supine with bed flat and suction was done to ensure there is no secretion present in the central airway, as this may interfere in the study results. Set of baseline measurement of dependent variable is taken and lung compliance is measured alongside ABG sampling. Results: There were improvement in Within group in both the groups for all the outcome measures between - group analysis showed that the experimental and control groups were different statistically in PaO2/FiO2 ratio and lung compliance with F = 24.030, p<0.001 and F = 8.096, p < 0.001. Conclusion: These results, together with observations of both groups, suggest that manual hyperinflation registers significant improvement in lung compliance and PaO2/FiO2 ratio.


Keywords: Manual hyperinflation, lung compliance, and PaO2/FIO2 ratio, coronary artery surgery


Edition: Volume 12 Issue 5, May 2023,


Pages: 2244 - 2247


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