General Surgery & Perioperative Clinical Calculators
General surgery and perioperative medicine require exacting risk stratification to minimize postoperative morbidity and standardized diagnostic criteria to triage the acute abdomen. The MedCalc Surgery Hub equips surgeons, anesthesiologists, and perioperative hospitalists with 100% offline, zero-latency access to the most vital surgical algorithms.
From comprehensively stratifying preoperative morbidity via the NSQIP and ASA frameworks to classifying postoperative complications using the Clavien-Dindo system, these tools bring objective, evidence-based rigor to the surgical ward. All scoring systems are strictly aligned with guidelines from the American College of Surgeons (ACS) and the American Society of Anhesiologists (ASA).
Preoperative Risk & Functional Assessment
🔪 ASA Status Assessment
Determine preoperative physical status classification.
🔪 NSQIP Surgical Risk Tool
Comprehensive surgical risk calculator for morbidity.
🔪 POSSUM Score Calculator
Physiological and Operative Severity Score for mortality.
🔪 Goldman Cardiac Risk Index
Classic Cardiac Risk Index for non-cardiac surgery evaluation.
🔪 Duke Activity Status Index (DASI)
Estimate functional capacity for pre-op cardiac assessment.
🔪 ARISCAT Score Calculator
Assess risk of postoperative pulmonary complications.
🔪 Frail Scale Calculator
Assess functional frailty prior to surgical intervention.
🔪 NRS 2002 Assessment
Nutritional Risk Screening for preoperative inpatients.
Acute Care Surgery & Acute Abdomen
🔪 Alvarado Score Calculator
Diagnostic probability score for acute appendicitis.
🔪 AIR Score Calculator
Appendicitis Inflammatory Response predictive score.
🔪 Hinchey Classification Tool
Stage acute diverticulitis based on CT/surgical findings.
🔪 Tokyo Guidelines (Cholecystitis)
Diagnostic criteria grading for acute cholecystitis.
🔪 Tokyo Guidelines (Cholangitis)
Diagnostic criteria grading for acute cholangitis.
Postoperative Complications & VTE Risk
🔪 Clavien-Dindo Classification
Standardized classification of postoperative surgical complications.
🔪 Surgical Apgar Score
Predict postoperative major complications based on intra-op data.
🔪 Caprini VTE Score Calculator
Assess deep vein thrombosis risk in surgical patients.
🔪 Padua Prediction Score
Assess VTE risk specifically in hospitalized medical patients.
🔪 Apfel Score Calculator
Predict postoperative nausea and vomiting (PONV) risk.