Child-Pugh Score Calculator

Understanding Child-Pugh Classification

The Child-Pugh score, developed in 1973, was the first widely adopted system for grading cirrhosis severity. It evaluates both laboratory values and clinical findings, providing a holistic view of liver disease impact on a patient's health.

Five parameters are scored: total bilirubin (liver's ability to clear bile), serum albumin (liver's protein synthesis capacity), INR or prothrombin time (coagulation function), ascites (fluid accumulation from portal hypertension), and hepatic encephalopathy (brain dysfunction from liver failure).

Each parameter receives 1, 2, or 3 points depending on severity. Total scores range from 5 (best) to 15 (worst). Class A (5-6 points) is compensated cirrhosis with excellent survival. Class B (7-9) is moderately decompensated. Class C (10-15) is severely decompensated with poor prognosis.

Medical disclaimer: This calculator is for educational purposes only. Cirrhosis assessment and management require comprehensive evaluation by a hepatologist. Never make treatment decisions based solely on Child-Pugh score without professional medical guidance.

Clinical Applications of Child-Pugh Score

Child-Pugh score guides surgical decision-making. Patients with Class A cirrhosis tolerate elective surgery well, with low perioperative mortality. Class B patients have moderate risk and need careful preoperative optimization. Class C patients face very high surgical risk, and elective procedures are often deferred.

The score also predicts outcomes in variceal bleeding. Class A patients have low rebleeding rates and good survival after endoscopic therapy. Class C patients have >50% rebleeding risk and high mortality, often requiring TIPS (transjugular intrahepatic portosystemic shunt) or transplant evaluation.

Hepatocellular carcinoma (HCC) treatment planning uses Child-Pugh classification. Class A patients are candidates for surgical resection, ablation, or chemoembolization. Class B patients may tolerate chemoembolization but not surgery. Class C patients should proceed directly to transplant evaluation if HCC is within Milan criteria.

The Barcelona Clinic Liver Cancer (BCLC) staging system integrates Child-Pugh class with tumor stage to guide HCC treatment. It's the most widely used HCC algorithm globally.

Comparing Child-Pugh and MELD Scores

MELD (Model for End-Stage Liver Disease) largely replaced Child-Pugh for transplant allocation because it uses only objective lab values (bilirubin, INR, creatinine), eliminating inter-observer variability in grading ascites and encephalopathy.

However, Child-Pugh remains valuable because it captures clinical decompensation that MELD may miss. A patient with refractory ascites and encephalopathy but preserved labs may have a low MELD yet high Child-Pugh score, reflecting true disease severity.

In practice, many hepatologists calculate both. MELD determines transplant priority, while Child-Pugh guides prognostic discussions, procedural risk assessment, and clinical trial enrollment. Some studies suggest combining both scores improves prognostic accuracy.

Limitations of Child-Pugh include subjectivity (ascites and encephalopathy grading varies among observers) and the arbitrary point cutoffs. A patient with 6 points (Class A) and 7 points (Class B) may have similar actual risk despite different classifications. Despite these limitations, Child-Pugh's 50-year track record validates its continued use alongside MELD.