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Table 1 Baseline clinical characteristics

From: Index of microcirculatory resistance predicts long term cardiac systolic function in patients with STEMI undergoing primary PCI

 

IMR ≤ 40 U (n = 28)

IMR > 40 U (n = 25)

p value

Male

23 (82.1)

23 (92.0)

0.295

Age (years)

56.2 ± 10.5

60.2 ± 10.2

0.168

Hypertension

17 (60.7)

17 (68.0)

0.775

Diabetes mellitus

7 (25.0)

8 (32.0)

0.761

Smoking

21 (75.0)

13 (52.0)

0.095

Hyperlipemia

4 (14.3)

6 (24.0)

0.488

Ischemic time (min)

246 ± 180

293 ± 150

0.293

D–B (min)

81.0 ± 24.2

74.6 ± 24.1

0.340

Admission BP

 SBP (mmHg)

 DBP (mmHg)

130.4 ± 15.9

80.4 ± 16.5

126.6 ± 15.0

80.4 ± 11.0

0.377

0.986

Periprocedural medication

 Aspirin

 P2Y12

 ACEI

 Statin

 β-blocker

28 (100.0)

28 (100.0)

28 (100.0)

28 (100.0)

28 (100.0)

25 (100.0)

25 (100.0)

25 (100.0)

25 (100.0)

25 (100.0)

Hemoglobin (g/L)

124.6 ± 7.7

125.6 ± 7.4

0.609

Blood glucose (mmol/L)

6.5 ± 1.7

6.5 ± 2.2

0.637

T-CHO (mmol/L)

5.4 ± 1.7

5.0 ± 1.6

0.321

LDL-C (mmol/L)

2.7 ± 0.8

2.7 ± 0.8

0.586

HbA1c (%)

5.7 ± 0.8

6.1 ± 1.4

0.214

BNP (pg/ml)

218.6 ± 136.5

254.5 ± 220.1

0.542

IMR

22.4 ± 6.6

43.6 ± 3.7

 < 0.001

  1. Values are mean ± SD or n (%)
  2. D-B, door-balloon; SBP, systolic blood pressure; DBP, diastolic blood pressure; ACEI, angiotensin converting enzyme inhibitor; T-CHO, total cholesterol; LDL-C, low density lipoprotein; HbA1c, glycosylated hemoglobin; BNP, B-type natriuretic peptide; IMR, index of microvascular resistance