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Acute hepatic failure following cardiac operation in children
Insights
Pediatric cardiac surgery patients developing acute hepatic failure (AHF) often present with jaundice, coagulopathy, and organ dysfunction. Early recognition and management of complications like hypoglycemia are crucial for survival.
Area of Science:
- Pediatric Cardiology
- Hepatology
- Critical Care Medicine
Background:
- Acute hepatic failure (AHF) is a rare but serious complication following pediatric cardiac surgery.
- Understanding the clinical presentation and management strategies is vital for improving patient outcomes.
Purpose of the Study:
- To determine the clinical presentation and management of AHF in children post-cardiac operations.
- To identify risk factors and outcomes associated with AHF in this population.
Main Methods:
- Retrospective analysis of children undergoing cardiac operations over a 6-year period.
- Inclusion criteria: development of AHF in the postoperative period.
- Data collection included clinical presentation, laboratory values, hemodynamic parameters, and outcomes.
Main Results:
- Eleven patients presented with AHF, characterized by jaundice, elevated SGOT and ammonia, prolonged prothrombin time, and hemostatic failure.
- Seven patients developed hypoglycemia; all had low cardiac output and acute renal failure.
- Reduced hepatic perfusion, low mean arterial pressure, and elevated central venous pressure were noted.
- Mortality was high, with six deaths from myocardial failure; four of six undergoing modified Fontan procedure died.
- Five children survived the acute hepatic failure episode.
Conclusions:
- AHF in pediatric cardiac surgery patients is associated with significant morbidity and mortality.
- Reduced hepatic perfusion and hemodynamic instability are key features.
- Early diagnosis and prompt management of complications, including hypoglycemia and bleeding, are critical for survival.
Abstract:
A retrospective analysis has been performed of children who have undergone cardiac operations during the past 6 years to determine the clinical presentation and management of acute hepatic failure (AHF) in the postoperative period. Eleven patients had a clinical picture of AHF with jaundice, elevation of the levels of serum glutamic oxaloacetic transaminase (SGOT) and serum ammonia, and marked prolongation of the prothrombin time associated with failure of hemostasis. Hypoglycemia developed in seven. All patients had evidence of low cardiac output and acute renal failure. Patients with AHF had evidence of reduced hepatic perfusion during the previous 24 hours with reduced mean arterial pressure and elevated central venous pressure. Six children died of myocardial failure. A modified Fontan procedure was performed in six children, of whom four died. All had a right atrial pressure of 21 torr or greater. Five children survived the acute episode of hepatic failure. The importance of early diagnosis and effective management of complications such as hypoglycemia and the bleeding tendency are emphasized.