Research Article

Thrombotic vs. Bleeding Events of Interruption of Dual Antiplatelet Therapy within 12 Months among Patients with Stent-Driven High Ischemic Risk Definition following PCI

Table 3

Lesion and procedural characteristics.

Interruption of DAPT within 12 months after PCI value
No (n = 2809)Yes (n = 1122)

Lesion characteristics
Multivessel CAD2525 (89.9)998 (88.9)0.382
Location of the lesion treated
 LM140 (5.0)50 (4.5)0.486
 LAD2386 (84.9)964 (85.9)0.436
 LCx835 (29.7)348 (31.0)0.426
 RCA959 (34.1)371 (33.1)0.520
 Bypass graft7 (0.2)3 (0.3)0.919
Target lesion morphology
 Heavy calcified lesion143 (5.1)55 (4.9)0.807
 In-stent restenosis lesion128 (4.6)49 (4.4)0.796
 Bifurcation lesion569 (20.3)221 (19.7)0.693
 Bifurcation with two stents implanted283 (10.1)98 (8.7)0.200
 Thrombotic lesion116 (4.1)52 (4.6)0.480
 Chronic total occlusion541 (19.3)194 (17.3)0.153
Type B2 or C lesion2510 (89.4)1020 (90.9)0.146
SYNTAX score14.67 ± 8.4614.51 ± 8.260.629
Total lesion length, mm57.22 ± 30.3555.76 ± 27.880.163
Procedural characteristics
Number of vessels treated1.49 ± 0.601.50 ± 0.590.566
Number of lesions treated1.75 ± 0.811.75 ± 0.811.000
 11241 (44.1)501 (44.7)0.787
 21111 (39.6)432 (38.5)0.543
 ≥3458 (16.3)189 (16.8)0.680
Number of stents implanted2.66 ± 1.162.59 ± 1.130.105
 1429 (15.3)189 (16.8)0.221
 2863 (30.7)343 (30.6)0.926
 ≥31517 (54.0)590 (52.6)0.420
Total stent length, mm61.00 ± 29.3459.99 ± 27.900.327
 Total stent length > 60 mm1280 (45.9)523 (46.6)0.666
Mean stent diameter, mm2.92 ± 0.522.91 ± 0.540.640
Vascular access site0.459
 Radial approach2538 (90.4)1005 (89.6)
 Femoral approach271 (9.6)117 (10.4)
Use of intravascular ultrasound214 (7.6)91 (8.1)0.602
Use of glycoprotein IIb/IIIa inhibitors520 (18.5)223 (19.9)0.324
Drug-eluting stent type0.949
 First-generation DES286 (10.2)115 (10.2)
 Second-generation DES2523 (89.8)1007 (89.8)

Values are mean ± SD for continuous variables and n (%) for categorical variables. CAD indicates coronary artery disease; DES, drug-eluting stent; LM, left main coronary artery; LAD, left anterior descending coronary artery; LCx, left circumflex coronary artery; RCA, right coronary artery; and SYNTAX, Synergy between PCI with Taxus and Cardiac Surgery.