3.4.8 ≥small residual VSD during follow-up
The meta-analysis for ≥small residual VSD during follow-up included 98 patients undergoing TVD and 400 patients undergoing non-TVD procedures from 3 studies, no significant difference in ≥small residual VSD during follow-up was identified(OR=0.86, 95% CI=0.26-0.87, p=0.81) (Fig.3g ).