Study Of Right Ventricular And Pulmonary Arterial Hemodynamic Changes In Perioperative Pulmonary Lobectomy Patients

Objective To discuss the hemodynamic changes of right ventricle and pulmonary artery in perioperative pulmonary lobectomy patients, so as to enhance better perioperative managements. Methods 28 patients undergoing pulmonary lobectomy were examined by colour doppler echocardiography(CDE) to determine the hemodynamic parameters of right ventricle and pulmonary artery preoperatively, and in postoperative day 2～4 and 8～14. Results There were normal hemodynamic parameters of right ventricle and pulmonary artery measured preoperatively in the study.Comparing with preoperative parameters, there were significant decrease (P<0.05) of right ventricular stroke volume(RVSV) and right ventricular cardiac output (RVCO) with significant increase (P<0.05) of HR, PASP,PADP,PAMP, and PVR in the postoperative day 2~4; and there were no significant difference (P>0.05) of those above mentioned in postoperative day 8~14. Conclusion There were transient hemodynamic changes after pulmonary lobectomy, with decreased right ventricular pumping function and increased pulmonary aterial pressure and PVR in postoperative day 2~4. It was recovered fundamentally in postoperative day 8~14...