Abstract: Objective To explore the occurrence, prognosis and influencing factors of vascular puncturerelated complications during cardiac catheterization. Method The clinical data of 1488 children undergoing cardiac catheterization from January to December 2019 was retrospectively analyzed. Results The vascular puncture related complications after cardiac catheterization happened in a total of 74 children ( 5 . 0 %) including 39 boys and 35 girls with a median age of 60 . 0 ( 25 . 0 - 108 . 0 ) months. There were 64 cases of hematoma at the puncture site, 5 cases of femoral arteriovenous fistula, 3 cases of pseudoaneurysm and 2 cases of thrombosis. Compared with the non-complication group, the age, weight and length (height) of the complication group were higher; the proportions of artery puncture, preoperative anticoagulation, use of large catheter sheath and postoperative congenital heart disease were also higher. The differences were statistically significant (P< 0 . 05 ). Conclusions The incidence of vascular puncture related complications after cardiac catheterization in children was 5 %. Preoperative anticoagulant therapy, intraoperative puncture of arterial vessels, implantation of large catheter sheath and previous history of congenital heart disease surgery are more likely to lead to complications.

Key words: cardiac catheterization; vascular puncture; complication; child