title: Etiologies, outcomes, and prognostic factors of pediatric acute liver failure: A single center's experience in Turkey.
abstract: OBJECTIVE
  Our aim was to determine the etiologies, outcomes, and prognostic indicators in children with acute liver failure.
  
  
  METHODS
  Ninety-one patients who were followed for pediatric acute liver failure (PALF) over a 15-year period were included. Patients who survived with supportive therapy were designated as Group 1, while those who died or underwent liver transplantation were designated as Group 2.
  
  
  RESULTS
  There were 37 (40.6%) patients in Group 1 (spontaneous recovery) and 54 (59.4%) patients in Group 2. Thirty-two patients (35.2%) underwent liver transplantation. Infectious and indeterminate causes were the most common etiologies (33% each). Among the infectious causes, hepatitis A (76%) was the most frequent. Hepatic encephalopathy grade 3-4 on admission and during follow-up and high Pediatric Risk of Mortality (PRISM) and Pediatric End-Stage Liver Disease (PELD) scores within the first 24 h were related with a poor prognosis. Group 2 had a more prolonged prothrombin time, higher international normalized ratio, more prolonged activated partial thromboplastin time (aPTT), and higher levels of total and direct bilirubin, ammonia, and lactate (for all, p<0.01).
  
  
  CONCLUSIONS
  Infectious and indeterminate cases constituted the most common etiology of PALF, and the etiology was related to the prognosis in our series. Although high PELD and PRISM scores were related to poor prognoses, no sharp thresholds for individual laboratory tests could be elucidated. Liver transplantation was the only curative treatment for patients with poor prognoses and resulted in high survival rates (1-, 5-, and 10-year survival rates of 81.3%, 81.3%, and 75%, respectively) in our study.
authors: Department of Pediatrics, Division of Gastroenterology, Hepatology, and Nutrition, Başkent University School of Medicine, Ankara, Turkey. zeren_baris@yahoo.com.
authors: Figen
authors: F
authors: Özçay
authors: Eda
authors: E
authors: Karadağ Öncel
authors: Zeren
authors: Z
authors: Barış
authors: Oğuz
authors: O
authors: Canan
authors: Gökhan
authors: G
authors: Moray
authors: Mehmet
authors: M
authors: Haberal
mesh_terms: D000293:Adolescent; D000641:Ammonia / Q000032:analysis; D001663:Bilirubin / Q000032:analysis; D001780:Blood Coagulation Tests; D002648:Child; D002675:Child, Preschool; D005260:Female; D006506:Hepatitis A / Q000150:complications; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D019344:Lactic Acid / Q000032:analysis; D017114:Liver Failure, Acute / Q000209:etiology* / Q000401:mortality* / Q000601:surgery; D016031:Liver Transplantation / Q000401:mortality*; D008297:Male; D011379:Prognosis; D012720:Severity of Illness Index; D015996:Survival Rate; D014421:Turkey
chemical_list: D019344:Lactic Acid; D000641:Ammonia; D001663:Bilirubin