Pediatric end-stage liver disease
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Pediatric end-stage liver disease (PELD) is a disease severity scoring system for children under 12 years of age. It is calculated from the patient's albumin, bilirubin, and international normalized ratio (INR) together with the patient's age and degree of growth failure. This score is also used by the United Network for Organ Sharing (UNOS) for prioritizing allocation of liver transplants.
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[edit] Determination
PELD uses the patient's values for serum bilirubin, serum albumin, the international normalized ratio for prothrombin time (INR), whether the patient is less than 1 year old, and whether the patient has growth failure (<-2 standard deviation) to predict survival. It is calculated according to the following formula:[1]
- PELD = 4.80[Ln serum bilirubin (mg/dL)] + 18.57[Ln INR] - 6.87[Ln albumin (g/dL)] + 4.36(<1 year old) + 6.67(growth failure)
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