Coronary bypass surgery in patients with pulmonary hypertension; early and late results

Coronary bypass surgery in patients with pulmonary hypertension; early and late resultsObjective: Pulmonary hypertension is a pathophysiological and hemodynamic condition that can occur in different diseases. Pulmonary hypertension is one of the reasons that increase the morbidity and mortality of open heart surgery. In this study we aimed to evaluate the effects of preoperative pulmonary hypertension on early and late results in patients undergoing coronary artery bypass surgery and the effects of coronary artery bypass surgery on pulmonary hypertension.Methods: This study has been performed retrospectively with 69 patients after institutional ethics committee approval. Preoperative, peroperative, early and late postoperative period datas examined from the data base of our clinic. The parameters such as pulmonary arterial pressure, ejection fraction, NYHA FC, arrhythmia was evaluated in preoperative period and last check of postoperative period.Results: In our study the mean number of bypass, mean intensive care unit stay and mean length of hospital stay was respectively 2.25 ± 8.30 (1-5), 2.83±1.19 (1-8) days 7.65 ± 3.26 (6-32) days. The most common problem in the early postoperative period (? 30 days) was atrial fibrillation (14.4%). There was no increase in the NYHA functional classification 84% of cases. Preoperative and postoperative values of the mean ejection fraction and mean pulmonary artery pressure of patients was respectively 45.28±9.67 (25-65), 46.03±12.4 (20-65) (p=0.447), 36.67±6.81 (30-60) mmHg, 37.81±10.07 (20-70) mmHg (p=0.378). The late mortality of cases was 5.79%. In our study 33.9 ± 17 (9-100) months follow up period, life expectancy was calculated 94.7 months.Conclusion: As a result of this study, preoperative evaluation of these patients for appropriate medical treatment at peroperative and postoperative period, coronary bypass surgery can be performed with low morbidity and mortality rates. Patients early results was good and long-term results satisfactory. In the late period after surgical revascularization pulmonary hypertension showed no significant change and had no adverse effect on quality of life.Key words: Pulmonary hypertension, coronary bypass surgery, early results, late results, complication