Child-Pugh Score for Liver Cirrhosis
Child-Pugh Score for Liver Cirrhosis Severity · Also known as: Child-Turcotte-Pugh Score, CTP Score
The Child-Pugh Score (originally Child-Turcotte, modified by Pugh in 1973) is a clinical scoring system that stratifies the severity of liver cirrhosis and predicts surgical mortality and prognosis. The score integrates five readily available clinical and laboratory parameters: bilirubin, albumin, prothrombin time (INR), ascites, and hepatic encephalopathy. With a total range of 5–15 points, the Child-Pugh Score is stratified into Class A (mild, 5–6 points), Class B (moderate, 7–9 points), and Class C (severe, 10–15 points), each with distinct mortality predictions.
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When to use it
The Child-Pugh Score is used to assess cirrhosis severity at baseline diagnosis or at critical clinical junctures. It is indicated when contemplating elective surgery in a cirrhotic patient (e.g., cholecystectomy for gallstones, abdominal wall hernia repair) to guide the risk-benefit discussion and inform operative planning. It is also used in longitudinal monitoring of cirrhotic patients to document progression or improvement (e.g., response to treatment for hepatitis C). In the context of variceal bleeding or hepatic encephalopathy, the Child-Pugh Score helps predict short-term prognosis and mortality. It is less useful in acute decompensation (e.g., fulminant hepatic failure, sepsis) where more dynamic scoring (e.g., SOFA) may be preferable.
Strengths & limitations
- Simplicity and accessibility: Five parameters are standard laboratory tests and clinical assessments available in every healthcare setting, requiring no special imaging or equipment.
- Long validation history: Over 50 years of clinical use with extensive published data correlating Child-Pugh classes with surgical mortality, variceal bleeding mortality, and transplant-free survival.
- Prognostic accuracy: Child-Pugh class is a strong predictor of medium-term (1–2 year) survival in cirrhotic patients; Class C patients have substantially worse prognosis than Class A or B.
- Operational utility: Guides decisions on operability, urgency of intervention, and need for supportive care (e.g., variceal band ligation prophylaxis in Class C).
- Subjective encephalopathy grading: The encephalopathy component depends on clinical assessment (patient alertness, asterixis, confusion), which varies with examiner experience and patient cooperation.
- Limited discrimination in advanced disease: Both Class C 10-point and 15-point scores are stratified as 'severe', yet prognosis differs substantially. Finer granularity is lost at the upper range.
- Missing dynamic factors: Does not account for acute precipitants (infection, renal failure, bleeding), which can dramatically worsen prognosis independent of underlying Child-Pugh score.
- Inferior to MELD for transplant: The Model for End-stage Liver Disease (MELD) score is superior to Child-Pugh for predicting 3-month mortality and is now standard for liver transplant allocation. Child-Pugh is less useful for this purpose.
Frequently asked
Is Child-Pugh still used if MELD score is available?
Yes. MELD has replaced Child-Pugh for liver transplant allocation priority, but Child-Pugh remains essential for non-transplant operative risk stratification. They measure different constructs: MELD predicts short-term (3-month) mortality overall; Child-Pugh predicts operative mortality and long-term prognosis. Always calculate both if transplant is under consideration.
How do I grade hepatic encephalopathy for the Child-Pugh score?
Hepatic encephalopathy is graded 0–4: Grade 0=no encephalopathy (score 1 for Child-Pugh), Grade 1–2=minimal/mild (confusion, lethargy, asterixis; score 2), Grade 3–4=severe (coma, unresponsiveness; score 3). Objective findings (asterixis, orientation tests) are preferred over subjective assessment. If uncertain, score as Grade 2 (minimal) unless gross confusion/coma is present.
What if a patient has controlled ascites on diuretics—does that count as 'mild' or 'absent'?
Ascites that is absent on diuretics and clinical exam is scored as 1 (absent). Ascites that is present but easily controlled with standard diuretics is scored as 2 (mild). Refractory ascites requiring frequent paracentesis or high-dose diuretics is scored as 3. The score reflects current clinical status, not diuretic requirement per se.
If a patient has Child-Pugh Class A but very high bilirubin (>5 mg/dL), is surgery safe?
Child-Pugh Class A alone does not guarantee surgical safety; clinical context matters. Very high bilirubin (>5) in the context of Class A implies either cholestasis (benign prognosis if non-cirrhotic) or advanced cirrhosis (contradicting the low overall score). Investigate the cause of hyperbilirubinemia; obtain hepatic ultrasound and gastroenterology consultation if unclear. Do not proceed with elective surgery without clarification.
How often should Child-Pugh be recalculated?
At initial cirrhosis diagnosis, establish baseline Child-Pugh. Thereafter, recalculate at major clinical transitions: (1) if acute decompensation (ascites onset, variceal bleed), (2) after treatment initiation (antiviral for HCV), (3) at 6–12 month intervals during follow-up to monitor progression, (4) immediately before elective surgery. Annual surveillance of stable, compensated cirrhosis is reasonable.
Sources
- Child, C. G., & Turcotte, J. G. (1964). Surgery and portal hypertension. In C. G. Child (Ed.), The liver and portal hypertension (pp. 50–64). Saunders. link ↗
- Pugh, R. N., Murray-Lyon, I. M., Dawson, J. L., Pietroni, M. C., & Williams, R. (1973). Transection of the oesophagus for bleeding oesophageal varices. British Journal of Surgery, 60(8), 646–649. DOI: 10.1002/bjs.1800600817 ↗
How to cite this page
ScholarGate. (2026, June 3). Child-Pugh Score for Liver Cirrhosis Severity. ScholarGate. https://scholargate.app/en/gastroenterology/child-pugh-score
Which method?
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