Table 2.
Comparison between early-phase and late-phase MFWR
| Item | Early rupture | Late rupture | P value |
| Patients (n) | 12 | 8 | |
| Age (years) | 72.3±8.5 | 66.7±7.4 | 0.346 |
| Female (%) | 41.7 | 25.0 | 0.642 |
| Systolic BP (mm Hg) | 110.0±29.2 | 108.0±25.0 | 0.876 |
| Diastolic BP (mm Hg) | 70.2±19.4 | 71.3±19.2 | 0.904 |
| Heart rate (beats per minute) | 92.3±16.9 | 76.6±19.4 | 0.070 |
| SPO2 (%) | 83.8±11.6 | 87.3±12.0 | 0.533 |
| Blood biochemistry | |||
| CK (peak, u/L) | 1018.4±1135.5 | 3430.8±3214.4 | 0.076 |
| CKMB (peak, u/L) | 75.9±74.5 | 305.3±262.1 | 0.044 |
| RBC (×109/L) | 4.0±0.7 | 4.2±0.5 | 0.567 |
| PLT (×109/L) | 202.8±47.4 | 171.0±70.6 | 0.270 |
| Creatine (µmol/L) | 78.9±23.5 | 102.6±26.1 | 0.077 |
| Death (%） | 66.7 | 87.5 | 0.603 |
| Patency rate of IRA | 33.3 | 62.5 | 0.362 |
| Ultrasonic cardiogram | |||
| LVEDD (mm) | 52.0±3.9 | 57.0±5.5 | 0.146 |
| LVESD (mm) | 35.5±6.7 | 42.3±6.2 | 0.121 |
| EF (%) | 63.0±3.8 | 45.8±5.6 | <0.001 |
| Hypertension (%) | 58.3 | 50.0 | 1.000 |
| Diabetes (%) | 16.7 | 12.5 | 1.000 |
| Cerebral infarction (%) | 8.3 | 25.0 | 0.537 |
| CKD (%) | 0.0 | 0.0 | |
| COPD (%) | 0.0 | 12.5 | 0.400 |
| STEMI (%) | 75.0 | 87.5 | 0.122 |
| Anterior (%) | 77.8 | 28.6 | |
| Inferior posterior (%) | 0.0 | 28.6 | |
| High lateral (%) | 11.1 | 28.6 | |
| Inferior and right ventricle (%) | 11.1 | 14.3 | |
| NSTEMI (%) | 25.0 | 12.5 | 0.619 |
| IABP (%) | 16.7 | 0.0 | 0.495 |
| Aspirin (%) | 83.3 | 100.0 | 0.495 |
| Clopidogrel (%) | 75.0 | 87.5 | 0.619 |
| Ticagrelor (%) | 0.0 | 12.5 | 0.400 |
| β-blocker (%) | 66.7 | 62.5 | 1.000 |
| ACEI/ARB (%) | 58.3 | 50.0 | 1.000 |
| CCB (%) | 8.3 | 0.0 | 1.000 |
| Statin (%) | 91.7 | 100.0 | 1.000 |
Data are mean±SD and n (%).
ACEI/ARB, ACE inhibitors/angiotensin II receptor blockers; BP, blood pressure; CCB, calcium channel blocker; CK, creatine kinase; CKD, chronic kidney disease; CKMB, creatine kinase isoenzyme-B; COPD, chronic obstructive pulmonary disease; EF, ejection fraction; IAPB, intra-aortic balloon pump; IRA, infarct-related artery; LVEDD, left ventricular end-diastolic diameter; LVESD, left ventricular end-systolic diameter; MFWR, myocardial free wall rupture; NSTEMI, non-ST segment elevated myocardial infarction; PLT, platelets; RBC, red blood cell; SPO2, oxyhemoglobin saturation by pulse oximetry; STEMI, ST segment elevated myocardial infarction.