Overall (n=190) Without additional heparin (n=159) With additional heparin (n=31)
P-value
Any bleeding event (%) 6 (3.2) 3 (1.9) 3 (9.7) 0.056
Groin hematoma 3 2 1
Cardiac tamponade 1 1 0
Laryngopharyngeal bleeding 1 0 1
Hemoptysis 1 0 1