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1,329 calculators and references across 60 specialties, with formula confidence shown up front.

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Echo Dyssynchrony Index (Ts-SD 12 LV) Calculator

Echo Dyssynchrony Index (Ts-SD 12 LV): Explanation and Clinical Context The Echo Dyssynchrony Index, calculated as the standard deviation of time to peak systolic velocity (Ts) across 12 left ventricular segments using tissue Doppler imaging, is a validated measure to quantify mechanical dyssynchrony in patients with heart failure. It was originally described by Yu et al. (2004) and has been used to predict response

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ELECTRa Registry Mortality Score (Lead Extraction)

ELECTRa Registry Mortality Score: Explanation and Clinical Context The ELECTRa Registry Mortality Score, also known as the EROS (ELECTRa Registry Outcome Score), is a risk stratification tool developed to predict the likelihood of major adverse events (MAEs) and mortality in patients undergoing transvenous lead extraction (TLE). It incorporates clinical variables such as age, gender, left ventricular ejection fractio

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ESC 2022 ICD Mortality Model Calculator

ESC 2022 ICD Mortality Model: Explanation and Clinical Context The ESC 2022 ICD Mortality Model is a risk prediction tool designed to estimate the 5-year mortality risk in patients with ischemic heart disease. It incorporates various clinical parameters such as age, gender, NYHA class, renal function (eGFR), hemoglobin levels, heart rate, and history of prior cardiovascular events. This model aids clinicians in ident