Driver BE, Khalil A, Henry T, Kazmi F, Adil A, Smith SW. A new 4-variable formula to differentiate normal variant ST segment elevation in V2-V4 (early repolarization) from subtle left anterior descending coronary occlusion - Adding QRS amplitude of V2 improves the model. J Electrocardiol. 2017;50(5):561-569.

Smith SW, Khalil A, Henry TD, et al. Electrocardiographic differentiation of early repolarization from subtle anterior ST-segment elevation myocardial infarction. Ann Emerg Med. 2012;60(1):45-56.e2.

Bozbeyoğlu E, Aslanger E, Yıldırımtürk Ö, et al. A tale of two formulas: Differentiation of subtle anterior MI from benign ST segment elevation. Ann Noninvasive Electrocardiol. 2018;:e12568.

Dr. Stephen W. Smith

Subtle Anterior STEMI Calculator (4-Variable)

bazett

rwave

Differentiates normal variant ST elevation (benign early repolarization) from anterior STEMI, more sensitive than 3-variable version.

Normal variant ST elevation vs true anterior STEMI.

Subtle Anterior STEMI (4-Variable)

Dominic Larose, MD

The Subtle Anterior STEMI Calculator (4-Variable) differentiates normal variant ST elevation (benign early repolarization) from anterior STEMI, more sensitive than 3-variable version.

QT Interval

Length

T-MACS

TIMI Risk Index

Framingham Risk Score (Hard Coronary Heart Disease)

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Calc Function