Left ventricular size and function according to resolution of ST segment elevation and infarct site
| Time | ST fall | LVEF | LVESVI | LVEDVI |
|---|---|---|---|---|
| Anterior MI | ||||
| 60 min | ⩾50% | 0.454-165 (0.34–0.59) | 27.34-165 (17.9–41.5) | 51.54-165 (38.7–68.5) |
| <50% | 0.34 (0.25–0.47) | 43.8 (28.0–68.6) | 68.0 (49.8–94.0) | |
| 90 min | ⩾50% | 0.41* (0.29–0.58) | 30.2**(18.1–50.2) | 54.5** (38.8–76.7) |
| <50% | 0.35 (0.26–0.48) | 42.0 (26.9–65.5) | 66.7 (48.9–71.1) | |
| 180 min | ⩾50% | 0.39 (0.28–0.54) | 34.2* (20.7–55.8) | 59.2 (42.6–82.3) |
| <50% | 0.34 (0.24–0.48) | 43.2 (27.0–69.1) | 67.0 (49.0–93.4) | |
| Inferior MI | ||||
| 60 min | ⩾50% | 0.45 (0.36–0.56) | 28.4 (21.2–38.1) | 53.1 (41.4–68.3) |
| <50% | 0.42 (0.33–0.54) | 30.3 (20.1–45.6) | 54.2 (38.6–76.2) | |
| 90 min | ⩾50% | 0.46 (0.37–0.56) | 27.9 (21.0–36.9) | 52.3 (40.8–67.1) |
| <50% | 0.42 (0.32–0.54) | 31.1 (20.2–47.8) | 55.2 (38.9–78.9) | |
| 180 min | ⩾50% | 0.45 (0.35–0.56) | 29.4 (21.3–40.5) | 54.6 (42.8–69.7) |
| <50% | 0.42 (0.34–0.53) | 29.8 (19.8–44.9) | 53.1 (36.8–76.7) | |
| All MI | ||||
| 60 min | ⩾50% | 0.454-165 (0.35–0.56) | 28.44-165(19.2–39.1) | 52.14-165 (41.4–68.3) |
| <50% | 0.37 (0.27–0.51) | 37.3 (23.1–58.6) | 62.2 (43.6–87.2) | |
| 90 min | ⩾50% | 0.444-165 (0.33–0.58) | 28.24-165(19.0–41.7) | 52.5** (38.9–70.8) |
| <50% | 0.37 (0.28–0.50) | 37.2 (28.2–49.0) | 61.7 (43.7–87.1) | |
| 180 min | ⩾50% | 0.42* (0.31–0.56) | 32.4* (21.3–48.5) | 55.6 (41.8–75.7) |
| <50% | 0.37 (0.27–0.51) | 36.8 (22.8–59.9) | 60.1 (41.8–86.7) |
↵4-165 p<0.001; **p<0.01; *p<0.05.
LVEF, LVESVI and LVEDVI shown as geometric mean (geometric SD).
LVEF, left ventricular ejection fraction; LVESVI, left ventricular end systolic volume index (ml min−1 m−2); LVEDVI, left ventricular end diastolic volume index (ml min−1 m−2).