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Table 1 Baseline demographic and clinical characteristics of patients included in the study

From: In-hospital major arrhythmias, arrhythmic death and resuscitation after successful primary percutaneous intervention for acute transmural infarction: a retrospective single-centre cohort study

 

Total

Patients with composite endpoint

Patients without composite endpoint

P-value

Demographics

 Total, %

975

72 (7.4%)

903 (92.6%)

 

 Female, %

29.2% (285/975)

33.3% (24/72)

28.9% (261/903)

0.45

 Age, (years)

62 (52–73)

68 (53–78)

62 (52–72)

< 0.05

Clinical presentation

 BMI, kg/m2

27 (25–30)

26 (25–29)

28 (25–30)

< 0.03

 Adiposity (BMI > 30), %

24.0% (220/916)

12.7% (8/63)

24.9% (212/853)

< 0.05

Medical history

 Previous MI, %

14.0% (135/961)

24.3% (17/70)

13.2% (118/891)

< 0.05

 Previous PCI, %

12.5% (120/960)

14.3% (10/70)

12.4% (110/890)

0.64

 Previous CABG, %

3.3% (32/962)

7.1% (5/70)

3.0% (27/892)

0.06

 Previous stroke, %

3.0% (29/963)

4.3% (3/70)

2.9% (26/893)

0.52

 Hypertension, %

71.4% (688/964)

70.4% (50/71)

71.4% (638/893)

0.85

 Hypercholesterolemia, %

74.9% (719/960)

59.7% (43/72)

76.1% (676/888)

< 0.01

 Diabetes mellitus, %

24.0% (234/975)

29.1% (21/72)

23.5% (213/903)

0.27

 Current smoker, %

46.9% (449/958)

31.9% (22/69)

48.0% (427/889)

< 0.01

 PAD, %

5.7% (54/946)

13.0% (9/69)

5.1% (45/877)

< 0.01

 Aspirin on admission, %

23.7% (221/957)

37.1% (26/70)

22.0% (195/887)

< 0.01

Laboratory on admission

 Potassium, mmol/L

4.0 (3.7–4.3)

4.2 (3.8–4.7)

4.0 (3.7–4.3)

< 0.05

 Creatinine, mg/dl

0.9 (0.8–1.1)

1.1 (0.9–1.4)

0.9 (0.8–1.1)

< 0.0001

 Elevated CRP (≥5×), %

10.3% (76/741)

14.3% (8/56)

9.9% (68/685)

0.30

 WBC > 10.000 μl, %

57.0% (547/960)

72.0% (52/72)

55.7% (495/885)

< 0.01

 HbA1c, %

8.4 ± 7.5

10.4 ± 13.8

8.1 ± 6.4

0.9

ECG on admission

 anterior STEMI, %

39.5% (383/970)

55.6% (40/72)

38.5% (343/891)

< 0.05

 AF, %

4.4% (42/968)

10.3% (7/71)

3.9% (35/890)

< 0.01

 LBBB, %

1.8% (17/965)

5.5% (4/72)

1.5% (13/888)

< 0.05

 AV block, %

3.9% (38/968)

4.1% (3/72)

3.9% (35/820)

0.97

Coronary angiogram and intervention

 Three-vessel disease, %

27.3% (266/975)

31.9% (23/72)

26.9% (243/903)

0.36

 Time to reperfusion < 4 h, %

89.3% (868/972)

92.4% (67/72)

89.6% (795/893)

0.35

 Coronary thrombus, %

19.2% (187/973)

33.3% (24/72)

18.2% (163/894)

< 0.01

 Stent implantation, %

98.7% (956/969)

97.2% (70/72)

99.5% (886/890)

< 0.05

 GPIIa-IIIb antagonist, %

2.9% (28/965)

6.9% (5/72)

2.6% (23/887)

0.05

 Bivalirudin, %

15.0% (145/968)

20.3% (15/72)

14.5% (130/889)

0.17

Clinical course

 CCU stay, h

46 (32–54)

49 (20–169)

46 (33–52)

0.17

 Routine hospital ward stay, h

150 (120–193)

170 (105–200)

150 (120–193)

0.60

 Telemetric monitoring, h

47 (33–66)

50 (13–192)

47 (33–58)

0.26

 Use of vasopressors, %

12.5% (122/975)

83.5% (60/72)

6.9% (62/896)

< 0.0001

 Maximum troponin value, U/L

3.4 (1.5–6.4)

5.9 (1.7–14.1)

3.3 (1.5–6.1)

< 0.01

 Maximum CK value, mg/dl

1413 (549–2822)

2178 (609–4513)

1351 (545–2706)

< 0.01

Clinical outcome

 EF < 30%, %

9.3% (80/857)

43.4% (23/53)

7.1% (57/804)

< 0.0001

 Death

6.5% (63/974)

72.2% (52/72)

1.2% (11/896)

< 0.0001

 Cardiac death, % of total

88.9% (56/63)

96.2% (50/52)

54.5% (6/11)

< 0.001

  1. Troponin was assayed as troponin T (normal < 0.01 U/L)
  2. Abbreviations: BMI body mass index, MI myocardial infarction, PCI percutaneous coronary intervention, CABG coronary artery bypass grafting, PAD peripheral artery disease, CRP C-reactive protein, WBC white blood cell count, Hba1c glycated hemoglobin, STEMI ST-elevation MI, AF atrial fibrillation, LBBB left bundle branch block, AV atrioventricular, GP glycoprotein, CCU coronary care unit, CK creatine phosphokinase (normal < 250 mg/dl), EF ejection fraction