HE_MACS v.1
History and Electrocardiogram-only Manchester Acute Coronary Syndromes (HE-MACS) stratifies ACS risk with history and EKG only (not yet externally validated).
To calculate the probability of ACS or MACE.
Use to stratify the ACS risk. The probability (in %) is calculated by using the formula: % = 1 / (1 + e^x) where x = - [(1.426 * sweating) + (1.838 * EKG) + (0.734 * pain) + (0.996 * vomiting) + (1.353 * systolic BP) + (0.675 * tobacco) + (0.024 * age) + (0.462 * sex) − 4.416]. All variables, except for age and sex, are answered with No (0 points) or Yes (1 point). Sex is answered with Female (0 points) or Male (1 point). Interpretation: Risk of ACS or MACE in 30 days: Risk group: <4.0% Very low 4.0-6.9% Low 7.0-49.9% Moderate ≥50.0% High
Not to be used for patients under 18 years.
1. Alghamdi A, Howard L, Reynard C, Moss P, Jarman H, Mackway-Jones K, Carley S, Body R. Enhanced triage for patients with suspected cardiac chest pain: the History and Electrocardiogram-only Manchester Acute Coronary Syndromes decision aid. Eur J Emerg Med. 2019 Oct;26(5):356-361. doi: 10.1097/MEJ.0000000000000575. PMID: 30289775; PMCID: PMC6728057.
OBSERVATION.he_macs.v0, EVALUATION.he_macs_assessment.v0
