1,329 calculators and references across 60 specialties, with formula confidence shown up front.
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
SC (Subcostal View) SC 4C (Subcostal 4 Chamber) 4C : 4 chamber, IAS : Interatrial septum, IVS : Interventricular septum, LA : Left atrium, LV : Left ventricle, MV : Mitral valve, RA : Right atrium, RV : Right ventricle, SC : Subcostal, TV : Tricuspid valve. SC (Superior Vena Cava) IVC : Inferior vena cava, RA : Right atrium, SC : Subcostal, SVC : Superior vena cava. SC (Long Axis IVC) IVC : Inferior vena cava, RA : R
STS Primary Mitral Valve Repair/Replacement Risk Calculator: Explanation and Clinical Context The STS Primary Mitral Valve Repair/Replacement Risk Calculator is a tool developed by The Society of Thoracic Surgeons to estimate the short-term (operative/30-day) risk associated with mitral valve repair or replacement surgeries for patients with primary mitral regurgitation (MR) and degenerative mitral etiology. This cal
STS Risk Score (SAVR): Explanation and Clinical Context The STS Risk Score is a validated tool developed by the Society of Thoracic Surgeons to estimate the risk of operative mortality and major morbidity for patients undergoing surgical aortic valve replacement (SAVR). It incorporates patient demographics, comorbidities, laboratory values, and procedural factors to produce a probability of 30-day or in-hospital mort
STS Score (Aortic/Mitral/Combined): Explanation and Clinical Context The Society of Thoracic Surgeons (STS) risk score is a validated tool to predict operative mortality and morbidity for patients undergoing cardiac surgery, including aortic valve replacement, mitral valve surgery, or combined procedures. The score incorporates multiple patient-specific variables such as age, sex, NYHA class, left ventricular ejectio
STS-IE Surgical Risk Model: Explanation and Clinical Context The STS-IE (Society of Thoracic Surgeons – Isolated Valve Surgery) Risk Model is a validated tool to predict postoperative mortality and major morbidity for patients undergoing isolated valve surgery. It uses patient-specific clinical variables including age, sex, previous cardiac surgery, NYHA functional class, left ventricular ejection fraction, diabetes,