Clinical Overview
Child-Pugh scoring is a structured clinical decision-support tool. It classifies cirrhosis severity and is embedded in prognostic and medication-use decisions. It standardizes calculation and communication, but its output remains an estimate that must be interpreted with the complete history, examination, laboratory method, imaging, serial trend, and institutional protocol. Enter contemporaneous data and verify units before relying on the result.
The displayed category reflects cohorts and conventional thresholds rather than a diagnosis or mandatory treatment instruction. Document inputs with the result, reassess when the patient changes, and prioritize time-critical stabilization over score completion. Discordance between the calculated estimate and clinical concern should prompt review of measurements, assumptions, competing diagnoses, and specialist advice.
When to Use
- Severity stratification in cirrhosis
- Prognostic communication and therapy eligibility context
Limitations & Safety
Ascites and encephalopathy are subjective and affected by treatment; anticoagulation can distort INR. Performance varies with population, prevalence, disease stage, treatment era, and local laboratory reference intervals. Avoid extrapolation to groups excluded from validation, and do not use a low score to dismiss concerning symptoms or a high score to prove a diagnosis.
Clinical decisions should incorporate contraindications, comorbidities, patient preferences, and current regional guidance. Pregnancy, childhood, older age, critical illness, altered physiology, and organ failure often require population-specific interpretation. Clinipocket stores no entered patient values; record clinically relevant results in the approved medical record.
- Ascites and encephalopathy grading is partly subjective
- Thresholds differ for cholestatic liver disease in some conventions
Formula / Scoring Criteria
Child-Pugh = sum of five 1–3 point domains: bilirubin, albumin, INR/prothrombin time, ascites, and encephalopathy; total 5–15
Interpretation
- 5–6 — Class A: Better preserved liver function. Routine cirrhosis management and surveillance.
- 7–9 — Class B: Significant functional compromise. Optimize decompensation and specialist planning.
- 10–15 — Class C: Severe dysfunction and poor prognosis. Urgent hepatology/transplant assessment where appropriate.
Evidence & References
- Pugh RNH, et al. Transection of the oesophagus for bleeding oesophageal varices.
- Durand F, Valla D. Assessment of prognosis of cirrhosis.
Clinical FAQs
Can warfarin affect the score?
Yes. Anticoagulation can elevate INR independently of liver synthetic function.
Are bilirubin cutoffs universal?
Some cholestatic-disease conventions use different bilirubin thresholds.
Does Child-Pugh replace MELD?
No. They serve overlapping but distinct clinical and allocation purposes.