Why the study?
The authors aimed to assess baseline electrocardiographic and standard laboratory predictors of low to mid-range LVEF at 1-month follow-up in STEMI patients.
Do baseline ECG and biochemical parameters predict low-to-mid-range LVEF at one month in STEMI patients?
Cross-Sectional (n=130)
Do baseline ECG and biochemical parameters predict low-to-mid-range LVEF at one month in STEMI patients?
Baseline aVR R wave peak time and peak CK-MB levels are significant predictors of early left ventricular remodeling after STEMI.
May aid early LVEF risk stratification in STEMI using routine tests; hypothesis-generating and requires prospective validation before practice change.
Aim: We aimed to assess low to mid-range left ventricular ejection fraction (LVEF) predictors at one-month follow-up in STEMI patients using baseline electrocardiography (ECG) and standard laboratory tests.Methods: In this retrospective cross-sectional study, 130 STEMI patients (79% male, mean age: 57.2 ± 11.9 years) were enrolled. Multivariate linear regression analysis determined the relationship of baseline 12-lead ECG and clinical/laboratory parameters with LVEF at the 1st-month follow-up visit.Results: The mean LVEF of the patients at the 1st-month follow-up visit was 51.8 ± 8.7%. There was a significant negative correlation between age (r = -0.206)*, peak CK-MB level (-0.0411)**, QTc interval (r = -0.209)*, STE amount (mV) (r = -0.286)**, V5–6 RWPT (r = -0.238)** and aVR RWPT (r = -0.466)** with LVEF (*p < 0.05; **p < 0.01). The aVR R wave peak time (RWPT) (OR: 0.88, p < 0.01) and peak CK-MB level (OR: 0.91, p < 0.01) were the two most important predictors of low-to-mid-range LVEF (<%50) during mean 38 ± 5 days follow-up after STEMI.Conclusion: Our study results suggested that the baseline aVR RWPT and peak CK-MB level were associated with low-to-mid-range LVEF at the 1st-month follow-up after STEMI. These parameters may be used in the risk stratification of STEMI patients to develop LV remodeling during follow-up.
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Doğan et al. (2024) conducted a cross-sectional in ST-segment elevation myocardial infarction (STEMI) (n=130). Baseline aVR R wave peak time (RWPT) and peak CK-MB level was evaluated on Low-to-mid-range LVEF (<50%) (OR 0.88, p=< 0.01).
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