Blood urea nitrogen-to-left ventricular ejection fraction ratio as a prognostic indicator in non-ST-elevation myocardial infarction: Clinical utility as a mortality marker.

BACKGROUND: Non-ST-elevation myocardial infarction (NSTEMI) accounts for the majority of acute coronary syndromes, and accurate early risk stratification is essential for guiding clinical management. Traditional scoring systems are complex and may no…

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