Table 1: Incidence and underlying causes of late/very late stent thrombosis in SES and PES.

SESPES value

Incidence of late/very late ST16/77 (21%) 25/94 (27%)0.47
Underlying causes of late/very late ST
 AMI, penetration of the necrotic core5 (31%)5 (20%)0.47
 Bifurcation stenting1 (6%)9 (36%)0.06
 Long/overlapping stents0 (0%)2 (8%)0.50
 Stent underexpansion1 (6%)1 (4%)1.00
 Isolated uncovered struts2 (13%)1 (4%)0.55
 Localized hypersensitivity7 (44%)0 (0%)0.0005
 Malapposition from excessive fibrin deposition0 (0%)7 (28%)0.03

AMI: acute myocardial infarction; PES: paclitaxel-eluting stents; SES: sirolimus-eluting stents; ST: stent thrombosis (Reproduced with permission from [49].)