Comparison of d-PPMI with o-PPMI
As seen in Table 1, the d-PPMI patients were less likely to be female (40.7% vs 46.9%; p=0.04). Interestingly, they had a significantly shorter length of stay for index hospitalization (3.7 days vs 4.9 days, p<0.001). They also had a higher incidence of atrial fibrillation, ventricular tachyarrhythmias, pulmonary vascular disease, uncomplicated diabetes. In comparing conduction system disorders (Table 2), the presence of advanced heart block was significantly higher in in d-PPMI (10.8% vs 5.4%; p=0.001), with higher presence of preoperative right bundle branch block (8.3% vs 3.5 %, p=0.002), second degree heart block (2.6% vs 0.8%;p=0.048) and bifascicular block(3.1% vs 1.2%;p=0.02). First-degree heart block was higher in the d-PPMI group but was not statistically significant.