Research Article

In Acute ST-Segment Elevation Myocardial Infarction, Coronary Wedge Pressure Is Associated with Infarct Size and Reperfusion Injury as Evaluated by Cardiac Magnetic Resonance Imaging

Table 2

CMR characteristics, three to seven days after the index procedure.

ParameterValue (n = 35)

LVESV (ml), mean ± SD75.42 ± 28.75
LVEDV (ml), mean ± SD144.57 ± 40.16
LVEF (%), mean ± SD48.69 ± 10.02
Left ventricular mass/BSA (g/m2), mean ± SD64.69 ± 14.21
Edema, n (%)35 (100)
Edema (% of left ventricular mass), mean ± SD30.81 ± 12.12
MVO, n (%)23 (65.71)
MVO (% of left ventricular mass), median (Q1–Q3)0.36 (0.00–1.57)
IMH, n (%)13 (37.14)
IMH (% of left ventricular mass), median (Q1–Q3)0.00 (0.00–0.57)
Necrosis, n (%)35 (100)
Necrosis (% of left ventricular mass), mean ± SD14.57 ± 9.34

BSA = body surface area; IMH = intramyocardial hemorrhage; LVEF = left ventricular ejection fraction; LVEDV = left ventricular end-diastolic volume; LVESV = left ventricular end-systolic volume; MVO = microvascular obstruction; n = number; Q1 = 1st quartile; Q3 = 3rd quartile; and SD = standard deviation.