Aim: To assess the change and analyze the possible predictors in RV function post CABG
Methods and Results: This cross-sectional retrospective study enrolled all patients undergoing isolated CABG and compared those
with postoperative RV systolic dysfunction versus patients without RV dysfunction. We included 164 patients underwent CABG with
a mean age of 56.1 ± 12.2 years old. Those patients were classified in to two groups: Group I (64.6%) patients with postoperative RV
dysfunction and group II (35.4%) without RV dysfunction postoperatively. We summarize our data as followings: 1) Demographic
and clinical data: group I patients had prevalence of DM and obesity were compared to group II patients (p = 0.02 and 0.05 respectively),
otherwise all other clinical predictors didn’t differ between the groups. 2) Echocardiography, angiography and operative data:
patients of group I had higher rates of preoperative larger LV, LV systolic dysfunction, reduced TAPSE values and severe diseased
coronaries compared to group II patients. 3) Change in RV function after CABG and prognosis: There was significant deterioration of
RV function post CABG in early follow up postoperative period (13% preoperatively VS 65% postoperatively; p = 0.04). Patients who
had better preoperative RV function maintained it postoperatively compared to patients with baseline RV dysfunction, p = 0.04. RV
dysfunction in our study is not associated with increased in-hospital mortality.
Conclusion: CABG has negative impact on RV function. Obesity and uncontrolled DM show role in RV dysfunction post operatively.
Evaluation of RV function in perioperative period is of future challenging |
