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RACHS-1 (Risk Adjustment in Congenital Heart Surgery) Calculator

RACHS-1 (Risk Adjustment in Congenital Heart Surgery): Explanation and clinical context The RACHS-1 method groups pediatric congenital heart surgical procedures into six categories (1–6) of increasing expected operative risk to allow comparisons of in-hospital mortality between case mixes, institutions, or time periods. RACHS-1 was developed by consensus using the Pediatric Cardiac Care Consortium (PCCC) dataset and

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RCPCH Myocarditis Prognosis Score Calculator

RCPCH Myocarditis Prognosis Score: Explanation and Clinical Context The RCPCH Myocarditis Prognosis Score is a clinical risk tool developed to estimate the probability of adverse outcomes, including death or requirement for mechanical circulatory support, in children presenting with acute myocarditis. It uses variables available at presentation, including age, heart rate, systolic blood pressure, left ventricular eje

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Rp/Rs Ratio (Pulmonary/Systemic Resistance) Calculator

Rp/Rs Ratio (Pulmonary/Systemic Resistance): Explanation and Clinical Context The Rp/Rs ratio represents the relative resistance of the pulmonary circulation (PVR) to the systemic circulation (SVR). It is calculated as the pulmonary vascular resistance divided by the systemic vascular resistance, providing insight into the balance between pulmonary and systemic vascular loads. A normal Rp/Rs ratio is typically less t