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Table 1 Comparison of clinical and angiographic characteristics among STEMI patients with different culprit vessel

From: Rapid predictors for the occurrence of reduced left ventricular ejection fraction between LAD and non-LAD related ST-elevation myocardial infarction

  LAD system (n = 315) Non-LAD system (n = 238)
EF < 55 % EF ≥ 55 % P EF < 55 % EF ≥ 55 % P
n = 169 n = 146 n = 64 n = 174
(1) Clinical characteristics       
 Male (%) 133 (78.7 %) 121 (82.9 %) 0.349 54 (84.4 %) 139 (79.9 %) 0.433
Age (years) 65.4 ± 11.4 60.7 ± 12.7 <0.01 67.4 ± 11.9 63.9 ± 11.3 0.034
 Hypertension (%) 98 (58.7 %) 82 (56.6 %) 0.704 40 (62.5 %) 114 (65.9 %) 0.627
 Diabetes (%) 94 (55.6 %) 68 (46.6 %) 0.098 29 (45.3 %) 79 (45.7 %) 0.961
 Stable angina history (%) 58 (34.3) 59 (40.4 %) 0.265 25 (39.1 %) 62 (35.6 %) 0.626
Time to hospital (hours) 6.0 ± 2.5 5.3 ± 2.7 <0.01 6.6 ± 2.7 5.3 ± 2.4 <0.01
 D-to-B time (minutes) 76.2 ± 27.4 74.6 ± 25.6 0.675 71.2 ± 21.3 74.3 ± 22.7 0.304
(2) Angiographic characteristics       
 Number of disease vessels 1.8 ± 0.8 1.6 ± 0.8 0.197 2.2 ± 0.8 1.9 ± 0.8 0.061
 Multi-vessel stenosis (%) 94 (55.6 %) 66 (45.2 %) 0.065 47 (73.4 %) 100 (57.5 %) 0.025
  --two vessels disease (including culprit vessel) 56 35   19 51  
  --three vessels disease (including culprit vessel) 38 31   28 49  
  --LAD AMI complicated with LCX stenosis 64 46   -- --  
  --LAD AMI complicated with RCA stenosis 68 51   -- --  
  --non-LAD AMI complicated with LAD stenosis -- --   24 48  
 Occlusion in proximal segment (%) 101 (59.8 %) 70 (47.9 %) 0.036 21 (32.8 %) 57 (32.8) 0.994
 Slow or no reflow (%) 34 (20.1 %) 26 (17.8 %) 0.603 12 (18.8 %) 20 (11.5 %) 0.146
 Post-PCI SBP (mmHg) 114.5 ± 16.8 119.2 ± 16.7 0.014 110.7 ± 18.7 113.1 ± 16.5 0.368
 Post-PCI DBP (mmHg) 70.7 ± 9.1 72.9 ± 7.7 0.027 68.5 ± 11.0 70.9 ± 9.0 0.123
  1. LAD system STEMI in left main or left main artery or left anterior descending artery; Non-LAD system STEMI in left circumflex or right coronary artery;
  2. DBP diastolic blood pressure; D-to-B door to balloon; SBP systolic blood pressure;
  3. STEMI ST-Elevation Myocardial Infarction; Time to hospital: from chest pain on-set to diagnosis;