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H2FPEF Score (Heart Failure with Preserved EF Probability) Calculator

H2FPEF Score: Explanation and Clinical Context The H2FPEF Score is a validated diagnostic scoring system designed to estimate the likelihood of heart failure with preserved ejection fraction (HFpEF) in patients presenting with unexplained dyspnea. It integrates six easily measurable clinical and echocardiographic variables: Heavy (BMI ≥30 kg/m²), Hypertensive (≥2 antihypertensive medications), Atrial fibrillation, Pu

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HeartLogic Multisensor Algorithm (Approximate Calculator)

HeartLogic Multisensor Algorithm — Explanation, clinical context and references The HeartLogic algorithm is a proprietary, multisensor device diagnostic implemented in certain Boston Scientific implantable cardioverter-defibrillators (ICDs) and cardiac resynchronization therapy devices. It combines trends from multiple sensors — notably accelerometer-derived first and third heart sounds (S1, S3), intrathoracic (thora

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HF-CARB (Chronic Ambulatory HF Risk Model) Calculator

HF-CARB (Chronic Ambulatory Heart Failure Risk Model) — explanation and clinical context This 5-item clinical model (derived from IC-BERG recommendations) evaluates ambulatory patients with chronic heart failure at the clinic by checking five simple features: NYHA class III–IV, clinical signs of congestion, a hospitalization or emergency visit for HF in the previous 12 months, a daily loop diuretic dose ≥40 mg furose

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HF-CRT Echo Resynchronization Index Calculator

HF-CRT Echo Resynchronization Index: Explanation and Clinical Context The HF-CRT Echo Resynchronization Index is a composite echocardiographic measure designed to quantify the mechanical dyssynchrony and remodeling response in patients undergoing cardiac resynchronization therapy (CRT). It integrates key mechanical and electrical parameters that have been shown to predict CRT benefit, including septal-to-lateral dela

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HF-CRT Echo Resynchronization Index Calculator

HF-CRT Echo Resynchronization Index: Explanation and Clinical Context The HF-CRT Echo Resynchronization Index is a composite echocardiographic measure designed to quantify the mechanical dyssynchrony and remodeling response in patients undergoing cardiac resynchronization therapy (CRT). It integrates key mechanical and electrical parameters that have been shown to predict CRT benefit, including septal-to-lateral dela

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HFA-PEFF Score Calculator

HFA-PEFF Score: Explanation and Clinical Context The HFA-PEFF algorithm is a stepwise diagnostic approach for suspected heart failure with preserved ejection fraction (HFpEF) that uses three domains — functional (diastolic function / filling pressure and longitudinal strain), morphological (left atrial enlargement, left ventricular hypertrophy/geometry), and biomarkers (natriuretic peptides). Each domain contributes

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HOST-EXAM Bleeding vs Ischemic Risk Index

How this tool works — clinical & methodological notes This page computes the DAPT score exactly as published by Yeh et al. (points assigned per original paper) to estimate ischemic vs bleeding trade-offs for continuing dual antiplatelet therapy after 12 months. The DAPT score ranges roughly from −2 to +10; a score ≥2 suggests potential ischemic benefit from prolonged DAPT (but this must be balanced with bleeding risk