Post Hoc analysis of cardiopulmonary indicators trends among post-operative coronary artery bypass graft patients with normal ventilator weaning response and dysfunctional ventilator weaning response

Objectives: The objectives of this post hoc analysis was to describe the characteristics of cardiopulmonary indicators among patients with normal ventilator weaning response and dysfunctional ventilator weaning response after coronary artery bypass graft surgery, and to find the differences in characteristics of cardiopulmonary indicators between patients with normal ventilator weaning response and dysfunctional ventilator weaning response after coronary artery bypass graft surgery. Materials and Methods: A post hoc analysis was performed using available data. Descriptive and inferential statistics were used to describe and compare the data. Available data was collected using a retrospective chart audit of the patients who underwent coronary artery bypass graft surgery. All the statistical significance tests were performed as two-tailed tests. A p value of < 0.05 was considered significant. Results: The results revealed that there are significant differences between patients with normal ventilator weaning response and dysfunctional ventilator weaning response in the trends of cardiopulmonary indicators including respiratory rate, cardiac output, cardiac index, pulmonary artery diastolic pressure, and pulmonary artery systolic pressure during the first eight post-operative hours of coronary artery bypass graft surgery. Conclusions: Cardiopulmonary indicators may be used to assess the ventilator weaning process following coronary artery bypass graft surgery. The results may have implications to the assessment, planning, providing, evaluating, and coordinating post-operative care for patients undergoing coronary artery bypass graft surgery.