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Table 2 Angiographic and PCI characteristics

From: 3-Year outcomes in patients with heavily calcified lesions undergoing percutaneous coronary intervention using cutting balloons

Angiographic and PCI characteristics

Before PSM

After PSM

Non-HCL

n = 2222

HCL

n = 210

P value

SMD

Non-HCL

n = 172

HCL

n = 172

P value

SMD

Multi-vessel disease

542 (24.4)

85 (40.5)

 < 0.001

0.349

54 (31.4)

54 (31.4)

1.000

 < 0.001

PCI vessels

LM

90 (4.1)

16 (7.6)

0.025

0.153

7 (4.1)

7 (4.1)

1.000

 < 0.001

LM bifurcate

65 (2.9)

9 (4.3)

0.375

0.073

5 (2.9)

5 (2.9)

1.000

 < 0.001

LAD

1418 (63.8)

139 (66.2)

0.542

0.050

108 (62.8)

108 (62.8)

1.000

 < 0.001

LCX

560 (25.2)

70 (33.3)

0.013

0.179

52 (30.2)

52 (30.2)

1.000

 < 0.001

RCA

844 (38.0)

95 (45.2)

0.047

0.148

69 (40.1)

69 (40.1)

1.000

 < 0.001

Total lesion length, mm

33.3 ± 24.7

46.6 (28.6)

 < 0.001

0.497

36.9 ± 25.1

39.5 ± 22.9

0.311

0.109

Minimum reference vessel diameter, mm

2.94 ± 0.41

2.86 ± 0.37

0.004

0.216

2.87 ± 0.40

2.88 ± 0.38

0.757

0.033

Target/control vessela

LM

 

12 (5.7)

  

6 (3.5)

6 (3.5)

1.000

 < 0.001

LM bifurcate

 

9 (4.3)

  

5 (2.9)

5 (2.9)

  

LAD

 

97 (46.2)

  

82 (47.7)

82 (47.7)

1.000

 < 0.001

LCX

 

38 (18.1)

  

31 (18.0)

31 (18.0)

1.000

 < 0.001

RCA

 

84 (40.0)

  

64 (37.2)

64 (37.2)

1.000

 < 0.001

Complex lesion (type B2 and C)a

 

203 (96.7)

  

147 (85.5)

166 (96.5)

0.001

0.393

Target/control lesion length, mma

 

31.3 ± 11.0

  

26.3 ± 12.6

30.1 ± 13.0

0.006

0.299

Minimum stent diameter, mm

2.94 (0.37)

2.85 (0.34)

0.001

0.265

2.88 (0.35)

2.86 (0.35)

0.540

0.068

Post-dilation

1628 (73.3)

188 (89.5)

 < 0.001

0.427

128 (74.4)

153 (89.0)

0.001

0.383

IVUS

77 (3.5)

10 (4.8)

0.440

0.065

3 (1.7)

8 (4.7)

0.220

0.166

Procedural failure

18 (0.8)

19 (9.0)

 < 0.001

0.388

2 (1.2)

13 (7.6)

0.008

0.317

Periprocedural complications

255 (11.5)

41 (19.5)

0.001

0.224

16 (9.3)

35 (20.3)

0.006

0.315

Coronary perforation

9 (0.4)

3 (1.4)

0.132

0.108

0 (0.0)

2 (1.2)

0.478

0.153

Tamponade

3 (0.1)

2 (1.0)

0.089

0.111

0 (0.0)

2 (1.2)

0.478

0.153

Coronary dissection

56 (2.5)

11 (5.2)

0.038

0.141

7 (4.1)

9 (5.2)

0.798

0.055

Slow/no flow

59 (2.7)

13 (6.2)

0.007

0.173

2 (1.2)

13 (7.6)

0.008

0.317

Periprocedural MI

205 (9.3)

32 (15.2)

0.007

0.184

9 (5.2)

26 (15.1)

0.004

0.331

  1. Values are mean ± SD or number (%)
  2. HCL, heavily calcified lesion; IVUS, intravascular ultrasound; LAD, left anterior descending artery; LCX, left circumflex artery; LM, left main artery; PCI, percutaneous intervention; PSM, propensity score matching; RCA, right coronary artery; SMD, standard mean deviation
  3. aThe control vessels were designated in the patients with non-HCLs after PSM according to the target vessel of their paired patients with HCLs. Therefore, the control vessels were not applicable before PSM
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BMC Cardiovascular Disorders

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