Table 6.

Antithrombotic drugs

	Pre-intervention n (%)	Follow-up n (%)
ASA		8 (53.3)
ASA + coumarins	7 (46.7)
ASA + clopidogrel		3 (20.0)
ASA + clopidogrel + coumarins	4 (26.7)
Coumarins	3 (20.0)
None	1 (6.6)	4 (26.7)

ASA: acetylsalicylic acid.