5. Conclusion
In summary, VSD closure using TVD technique results in longer CPB and cross-clamp time, and increases risk of TR during follow-up. Studies with longer follow-up periods, more detailed clinical data and lesser risk of bias are needed to further testify the effectiveness of TVD technique.
Conflicts of interest :The authors declare that there are no conflict of interests
Author contribution statement : Yongjun Qian: Conceptualization, Methodology, Supervision; Dou Yuan: Writing- Original draft preparation; Liping Chen: Writing-Review & Editing. Xiaoling Zhang: Editing. All authors read and approved the final version of the manuscript.