SIR IR-With interest we read the recent case report 'Severe Hepatotoxicity after Sevoflurane Anesthesia in a Child with Mild Renal Dysfunction' (1). In our institution, we had a child who developed severe acute liver failure after routine sevoflurane anesthesia from which she recovered. The child was 8-month-old female, trisomy 21, 5 kg scheduled for outpatient esoghageal dilatation. At birth, the child was 34-week gestation, with tracheoesophageal fistula which was surgically repaired. Unfortunately, the child developed secondary esophageal stricture. She had no allergies and was receiving zantac, raglan and poly-visol. Previously, she received several general anesthetics without apparent complications. She was status post-PDA ligation and J tube placement. She had no cardiac, hepatic or renal problems; however, she had a mild degree of developmental delay.On the day of the procedure, the child was NPO and received clear fluids 4 h before anesthesia induction. In the OR, after applying routine monitors, anesthesia was induced via a mask using sevoflurane and oxygen. Propofol, 25 mg i.v. were administered to facilitate orotracheal intubation. At the end of the procedure, the baby was awakened, the tracheal tube was removed, and the child moved to PACU. The child was well and required admission for 23-h observation. That evening the child developed respiratory distress. Later, she appeared listless with notable subcostal and suprasternal retractions that necessitated intubation and ventilation. A chest X-ray that evening demonstrated baseline chronic lung changes.She developed tachycardia and had poor perfusion with a capillary refill of approximately 5-6 s and low-grade fever with no apparent etiology. Blood gas results demonstrated severe metabolic acidosis with normal P a CO 2 and anemia. Normal saline, packed RBC and sodium bicarbonate were administered to correct hypovolemia, metabolic acidosis and anemia.On the second day after surgery, an extreme elevation of liver enzymes were noted, SGOT, 2546 UAEl )1 , SGPT, 2600 UAEl )1 , total bilirubin 34 lmolAEl )1 (2.0 mgAEdl )1 ), direct bilirubin 15.4 lmolAEl )1 (0.9 mgAEdl )1 ) indirect bilirubin 18 lmolAEl )1 (1.1 mgAEdl )1 ). Alkaline phosphate was 283 UAEl )1 . Serologic tests for hepatitis A, B or C were negative. There was no growth on blood cultures at 5 days. An abdominal ultrasound showed that the liver, gall bladder and the bile ducts appeared normal. An upper gastrointestinal X-ray series showed that there was no esophageal leak. With supportive medical care, the liver enzymes decreased gradually to normal levels after 1 week. The child was then discharged from the hospital.Two weeks after hospital discharge, she was rescheduled for esophageal dilation. A second anesthesia team administered the anesthesia. They were unaware of her previous postoperative complication. They administered uneventful general anesthesia using sevoflurane. Postoperatively the child was admitted to the hospital and her liver enzymes were checked on the following postoperative d...