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Fulminant hepatic failure — Clinical Guidelines

Overview

Fulminant hepatic failure (FHF) is a severe, rapidly progressive form of liver failure characterized by hepatic encephalopathy and coagulopathy, often requiring urgent intervention including liver transplantation 4 8.

Diagnosis

Clinical Presentation: Includes encephalopathy, coagulopathy, jaundice, and often systemic complications 1 6.

Laboratory Tests: Elevated liver enzymes, prolonged prothrombin time, and elevated bilirubin levels 4.

Imaging: Abdominal ultrasound or CT to rule out other causes and assess liver morphology 4.

Encephalopathy Grading: Use West Haven criteria to assess severity 4.

Management

First-Line Treatments:

- Supportive care: Mechanical ventilation, fluid management, and nutritional support 4. - Control of precipitating factors: Removal of toxins or drugs if identifiable 2 7.

Adjunctive Therapies:

- Liver Support Devices: Extracorporeal liver support systems (e.g., MARS) for specific etiologies 2. - Antioxidant Therapy: Chelating agents to manage metal ions (iron, copper) involved in free radical damage 5. - Antithrombin III: Supplementation to address circulatory disturbances and prevent multiorgan failure 9.

Special Populations

Pregnancy: Emergency liver transplantation may be necessary; preterm delivery may occur 3.

Pediatrics: Fulminant hepatic failure can follow status epilepticus, highlighting the need for prompt neurological and hepatic management 6.

Comorbidities: Increased risk of arrhythmias and cardiac complications, requiring close cardiac monitoring 11.

Key Recommendations

Early Referral for Liver Transplantation: Consider liver transplantation early in patients with poor prognosis and no signs of spontaneous recovery, especially in non-acetaminophen-induced FHF 4 8 (Evidence: Strong).

Supportive Care and Management of Precipitants: Implement comprehensive supportive care and address identifiable precipitating factors to stabilize the patient 4 7 (Evidence: Moderate).

Monitor for and Manage Cardiac Complications: Regularly monitor for arrhythmias and other cardiac abnormalities due to the high incidence in FHF patients 11 (Evidence: Moderate).

Consider Antioxidant and Metal Ion Chelation Therapy: Evaluate the use of antioxidant therapies targeting metal ions involved in free radical damage as adjunctive treatment 5 (Evidence: Weak).

References

1 Martínez-Insfran LA, Alconchel F, Ramírez P, Cascales-Campos PA, Carbonell G, Barona L et al.. Liver Transplantation for Fulminant Hepatic Failure Due to Heat Stroke: A Case Report. Transplantation proceedings 2019. link 2 Ng CT, Tan CK, Oh CC, Chang JP. Successful extracorporeal liver dialysis for the treatment of trimethoprim-sulfamethoxazole-induced fulminant hepatic failure. Singapore medical journal 2013. link 3 Mouloudi E, Vasiliadis T, Aslanidis T, Karapanagiotou A, Papanikolaou V, Gritsi-Gerogianni N. Preterm delivery in a parturient candidate for emergency liver transplantation after hepatitis B virus infection related fulminant liver failure. Transplantation proceedings 2012. link 4 Van Thiel DH, Brems J, Nadir A, Idilman R, Colantoni A, Holt D et al.. Liver transplantation for fulminant hepatic failure. Journal of gastroenterology 2002. link 5 Evans PJ, Evans RW, Bomford A, Williams R, Halliwell B. Metal ions catalytic for free radical reactions in the plasma of patients with fulminant hepatic failure. Free radical research 1994. link 6 Decell MK, Gordon JB, Silver K, Meagher-Villemure K. Fulminant hepatic failure associated with status epilepticus in children: three cases and a review of potential mechanisms. Intensive care medicine 1994. link 7 Schafer DF. Desperate appliances: a short review of therapies for fulminant hepatic failure. Blood purification 1993. link 8 Lidofsky SD. Liver transplantation for fulminant hepatic failure. Gastroenterology clinics of North America 1993. link 9 Langley PG, Hughes RD, Forbes A, Keays R, Williams R. Controlled trial of antithrombin III supplementation in fulminant hepatic failure. Journal of hepatology 1993. link80213-2) 10 Muto Y, Sugihara J, Ohnishi H, Moriwaki H, Nishioka K. Anti-hepatitis C virus antibody prevails in fulminant hepatic failure. Gastroenterologia Japonica 1990. link 11 Weston MJ, Talbot IC, Horoworth PJ, Mant AK, Capildeo R, Williams R. Frequency of arrhythmias and other cardiac abnormalities in fulminant hepatic failure. British heart journal 1976. link

Fulminant hepatic failure