1,329 calculators and references across 60 specialties, with formula confidence shown up front.
ABLATION-Success Score: Explanation and Clinical Context ABLATION-Success Score is a predictive tool developed to estimate the likelihood of maintaining sinus rhythm after catheter ablation in patients with atrial fibrillation. It incorporates key clinical variables including type of atrial fibrillation (paroxysmal, persistent, or long-standing persistent), left atrial diameter, patient age, comorbidities (hypertensi
Amplatzer Device Sizing Index (ADSI): Explanation and Clinical Context The Amplatzer Device Sizing Index (ADSI) is a validated tool to guide the selection of the optimal Amplatzer Septal Occluder (ASO) for closing Atrial Septal Defects (ASD). It is calculated as the ratio of the selected device diameter to the balloon-stretched ASD diameter. An ADSI value between 1.2 and 1.5 is generally considered optimal, ensuring
EHRA Bleeding Risk Index (Ablation): Explanation and Clinical Context The EHRA Bleeding Risk Index is a validated scoring system designed to estimate the risk of major bleeding in patients undergoing catheter ablation for atrial fibrillation. It integrates clinical variables such as advanced age, prior major bleeding, renal dysfunction, liver disease, use of antiplatelet or anticoagulant therapy, and hypertension. Pa
ELECTRa-SCORE (Lead Extraction): Explanation and Clinical Context ELECTRa-SCORE is a validated scoring system developed to estimate the risk of major complications during transvenous lead extraction (TLE). It is based on data from the European Lead Extraction ConTRolled (ELECTRa) Registry, the largest prospective TLE registry in Europe. The score is calculated from clinical variables including age, lead dwell time, n
EuroSCORE Calculator EuroSCORE: Comprehensive Explanation and Clinical Context The European System for Cardiac Operative Risk Evaluation, or EuroSCORE, is a validated clinical tool designed to estimate operative mortality in patients undergoing cardiac surgery. It incorporates demographic factors, comorbidities, hemodynamic status, and specific cardiac or surgical risk features. The model was originally derived from
ICE Safety Score: Explanation and Clinical Context The ICE Safety Score is a clinical tool designed to assess the risk of complications during procedures guided by intracardiac echocardiography (ICE), such as atrial fibrillation ablation or left atrial appendage occlusion. The score incorporates factors like age, CHA₂DS₂-VASc score, HAS-BLED score, left atrial diameter, and comorbidities to provide a comprehensive ri
LAA Closure Device Selection Index: Explanation and Clinical Context The LAA Closure Device Selection Index is a composite score designed to assist clinicians in selecting the most appropriate left atrial appendage (LAA) closure device based on patient-specific factors. This index incorporates the CHA₂DS₂-VASc score, HAS-BLED score, LAA diameter, and LAA depth to provide a tailored recommendation for device selection
CHA₂DS₂-VASc Score: Explanation and Clinical Context The CHA₂DS₂-VASc score is a clinical tool used to estimate the risk of stroke in patients with atrial fibrillation. It incorporates factors such as age, sex, and the presence of comorbid conditions like heart failure, hypertension, diabetes mellitus, and vascular disease. A higher score indicates a greater risk of stroke, guiding clinicians in decision-making regar
PADIT Score: Explanation and Clinical Context The PADIT Score is a validated tool to estimate the risk of cardiac implantable electronic device (CIED) infection based on patient and procedural factors. It incorporates five key variables: prior device infection, number of device procedures (first implant, replacement, or upgrade), device type (pacemaker, ICD, CRT), immunocompromised status, and renal dysfunction. Each
SAFE-TAVR Score: Explanation and Clinical Context The SAFE-TAVR Score is a clinical tool designed to assess the risk of pericardial effusion or cardiac tamponade following Transcatheter Aortic Valve Replacement (TAVR). It incorporates patient-specific factors such as age, sex, presence of chronic kidney disease, hypertension, ventricular function, and access site to stratify risk. This score aids clinicians in identi
Zero-Fluoro Safety Index: Explanation and Clinical Context The Zero-Fluoro Safety Index is a predictive tool designed to estimate the safety and success probability of cardiac ablation procedures performed without fluoroscopy. Traditional fluoroscopy exposes both patients and staff to ionizing radiation, which may increase long-term health risks. This index incorporates key patient and procedural factors, including p