Table 3 Comparison of Angiography and PCI characteristics between patients with and without PMI

Angiography characteristics

 Number of diseased vessels

1.7 ± 0.8

2.2 ± 0.9

<0.01

 Multi-vessel stenosis (%)

166 (49.8%)

157 (74.4%)

<0.01

 Number of diseased lesions

2.5 ± 1.6

3.6 ± 2.0

<0.01

 Average Gensini score

30.6 ± 20.0

43.3 ± 26.1

<0.01

 Average Syntax score

12.7 ± 6.9

16.9 ± 9.0

<0.01

 Severe CAD (%)

237 (71.2%)

194 (91.9%)

<0.01

Target lesion characteristics

--464 lesions

--357 lesions

 A (%)

86 (18.5%)

53 (14.8%)

<0.01

 B1 (%)

106 (22.8%)

64 (17.9%)

<0.01

 B2 (%)

110 (23.7%)

90 (25.2%)

0.048

 C (%)

162 (34.9%)

150 (42.0%)

<0.01

PCI characteristics

 Number of target vessels

1.1 ± 0.4

1.3 ± 0.5

<0.01

 Multi-vessel PCI (%)

35 (10.5%)

68 (32.2%)

<0.01

 Number of implanted stents

1.4 ± 0.6

1.8 ± 0.8

<0.01

 Total stent length (mm)

34.7 ± 17.8

49.4 ± 25.9

<0.01

 Type of stents

  --Sirolimus stent (%)

166 (49.8)

98 (46.4)

0.224

  --Everolimus stent (%)

134 (40.2)

84 (40.0)

0.842

  --Others (%)

33 (10.0)

29 (13.6)

0.218

 Max inflation pressure (atm)

13.3 ± 2.6

13.0 ± 1.7

0.762

 Contrast volume (ml)

144.8 ± 47.3

172.3 ± 63.5

<0.01

Procedural complications

 No reflow/slow reflow

4 (1.2%)

2 (1.0%)

0.682

 Side-branch occlusion (%)

10 (3.0%)

12 (5.7%)

0.064

 Distal thrombosis

1 (0.3%)

1 (0.5%)

0.342