Table 3 Comparison of coronary angiography and interventional therapy between the three groups.

From: Comparison of different interventional treatment strategies for patients with type 4b acute myocardial infarction caused by very late stent thrombosis

 

Overall (n = 316)

Re-stent (n = 203)

DCB (n = 42)

POBA (n = 71)

P value

ST time, years

7.54 ± 4.21

7.88 ± 4.33

8.36 ± 4.60

6.44 ± 3.57

0.025*

First stent implantation for AMI

142(44.9)

90(44.3)

23(57.5)

29(39.7)

0.038*

Type of first intervention stent

    

0.197

 Bare metal stent

2(0.6)

2(1.0)

0(0.0)

0(0.0)

 

 First generation DES

183(57.9)

106(52.2)

20(50.0)

57(78.1)

 

 Second generation DES

124(39.2)

78(38.4)

20(50.0)

26(35.6)

 

Second CAG, (%)

 Single vessel lesion

68(21.5)

42(20.7)

8(20.0)

18(24.7)

0.986

 Bifurcation lesion

69(21.8)

42(20.7)

8(20.0)

19(26.0)

0.947

 Calcified lesion

20(6.3)

11(5.4)

4(10.0)

5(6.8)

0.593

 Occlusive lesion

229(72.5)

138(68.0)

29(72.5)

62(84.9)

0.947

 Left main lesion

18(5.7)

12(5.9)

1(2.5)

5(6.8)

0.644

 B2/C lesion

172(54.4)

98(48.3)

16(40.0)

58(79.5)

0.003**

 Preoperative TIMI blood flow grade III

85(26.9)

52(25.6)

11(27.5)

22(30.1)

0.854

 Postoperative TIMI blood flow grade III

295(93.4)

187(92.1)

39(97.5)

69(94.5)

0.425

Culprit vessels, (%)

    

0.781

 LAD

122(38.6)

76(37.4)

18(45.0)

28(38.4)

 

 LCX

47(14.9)

28(13.8)

5(12.5)

14(19.2)

 

 RCA

108(34.2)

64(31.5)

13(32.5)

31(42.5)

 

 LM

18(5.7)

11(5.4)

1(2.5)

6(8.2)

 

 SVG

14(4.4)

10(4.9)

0(0.0)

4(5.5)

 

 Reference vessel diameter (mm)

3.14 ± 0.43

3.10 ± 0.46

3.12 ± 0.40

3.18 ± 0.42

0.091

 Length of lesions (mm)

24.92 ± 6.60

25.11 ± 6.23

23.50 ± 5.46

24.51 ± 6.43

0.307

Interventional devices

 Glycoprotein IIb/IIIa inhibitor

70(22.2)

48(23.6)

6(15.0)

16(21.9)

0.238

 Aspiration catheter

111(35.1)

74(36.5)

13(32.5)

23(31.5)

0.196

 IABP

38(12.0)

29(14.3)

1(2.5)

8(11.1)

0.025*

Intravascular imaging

 OCT

10(3.2)

6(3.0)

2(5.0)

2(2.7)

0.702

 IVUS

22(7.0)

12(5.9)

0(0.0)

6(8.2)

0.182

Post-hospitalization medication, (%)

 DAPT

316(100.0)

203(100.0)

42(100.0)

71(100.0)

1

 Statins

297(94.0)

183(90.1)

35(87.5)

69(94.5)

0.587

 ACEI/ARB/ARNI

259(82.0)

162(79.8)

29(72.5)

68(93.1)

0.394

 Beta blocker

286(90.5)

173(85.2)

35(87.5)

66(90.4)

0.813

 LMWH

305(96.5)

199(98.0)

35(83.3)

71(100.0)

0.001**

  1. DCB, drug coated balloon; POBA, plain old balloon angioplasty ; ST, stent thrombosis; MI, myocardial infarction; DES, drug-eluting stent; CAG, coronary angiography; TIMI; thrombolysis in myocardial infarction; LAD, left anterior descending artery; LCX, left circumflex artery; RCA, right coronary artery; LM, left main coronary artery; SVG, saphenous vein graft; IABP, intra-aortic balloon pump; OCT, optical coherence tomography; IVUS, intravascular ultrasound; DAPT, dual antiplatelet therapy; ACEI, angiotensin-converting enzyme inhibitor; ARB, angiotensin II receptor blocker; ARNI, angiotensin receptor neprilysin inhibitor; LMWH, low molecular weight heparin.(*P < 0.05,**P < 0.01)
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