Table 1.
Patients’ Baseline Characteristics, Electrocardiogram, Angiography Findings, and In‐Hospital Outcomes.
| aVR ST Elevation | No aVR ST Elevation | P | |
|---|---|---|---|
| (n = 97) | (n = 282) | Value | |
| Baseline characteristics and risk factors | |||
| Age (years) | 67 (60–75) | 64 (54–73) | 0.01 |
| Men | 52 (54) | 174 (62) | 0.16 |
| Obesity (body mass index ≥ 30 kg/m2) | 29 (30) | 81 (29) | 0.83 |
| Hypertension | 76 (78) | 197 (70) | 0.11 |
| Diabetes | 36 (37) | 98 (35) | 0.67 |
| Hyperlipidemia | 56 (58) | 159 (56) | 0.82 |
| Current smoking | 22 (23) | 74 (26) | 0.49 |
| Family history of CAD | 20 (21) | 60 (21) | 0.89 |
| Previous MI | 13 (13) | 37 (13) | 0.94 |
| Previous PCI | 35 (36) | 74 (26) | 0.06 |
| TIMI risk score | <0.001 | ||
| Low risk 0–2 | 7 (7) | 74 (26) | |
| Intermediate risk 3–4 | 51 (53) | 152 (54) | |
| High risk 5–7 | 39 (40) | 56 (20) | |
| Hemodynamic and laboratory data | |||
| Killip class > 1 on admission | 11 (11) | 32 (11) | 1 |
| Systolic blood pressure (mmHg) | 149 (126–168) | 140 (125–156) | 0.01 |
| Heart rate (beats/minute) | 88 (75–99) | 79 (69–92) | 0.006 |
| Peak troponin I (μg/L) | 2.10 (0.18–7.72) | 0.48 (0.09–4.12) | 0.007 |
| Electrocardiogram and echocardiogram findings | |||
| ST depression | 78 (80) | 39 (14) | <0.001 |
| Anterior ST depression (V1–V4) | 41 (42) | 15 (5) | <0.001 |
| Lateral ST depression (I, aVL, V5, and V6) | 75 (77) | 32 (11) | <0.001 |
| Inferior ST depression (II, III, and aVF) | 48 (49) | 7 (2) | <0.001 |
| Lead I | 56 (58) | 19 (7) | <0.001 |
| Lead II | 70 (72) | 17 (6) | <0.001 |
| T‐wave inversion | 5 (5) | 90 (32) | <0.001 |
| Left ventricular ejection fraction (%) | 60 (45–61) | 60 (50–65) | 0.46 |
| Angiographic findings and in‐hospital outcomes | |||
| Left main/three‐vessel disease | 38 (39) | 50 (18) | <0.001 |
| Three‐vessel disease | 37 (38) | 44 (16) | <0.001 |
| Left main disease | 8 (8) | 6 (2) | 0.01 |
| In‐hospital revascularization | 71 (73) | 169 (60) | 0.02 |
| In‐hospital PCI | 53 (55) | 150 (53) | 0.81 |
| In‐hospital CABG | 18 (19) | 19 (7) | <0.001 |
| In‐hospital all‐cause death | 2 (2) | 1 (0.4) | 0.16 |
| In‐hospital recurrent MI | 0 (0) | 1 (0.4) | 1 |
| In‐hospital heart failure | 13 (13) | 33 (12) | 0.66 |
| In‐hospital cardiogenic shock | 3 (3) | 4 (1) | 0.38 |
| Length of stay (days) | 5.2 (2.5–9.5) | 4.0 (2.5–6.4) | 0.03 |
Data are expressed as number (percentage) or median (interquartile range).
CAD = coronary artery disease; MI = myocardial infarction; PCI = percutaneous coronary intervention; TIMI = Thrombolysis In Myocardial Infarction; CABG = coronary artery bypass grafting.