There have never been any reports of adult varicella-zoster virus (VZV) encephalitis cases. Here, we report a case of VZV encephalitis after adult ABO-incompatible living donor liver transplantation (LDLT). A 38-year-old man with decompensated liver cirrhosis caused by the hepatitis C virus was referred to our hospital as an LDLT candidate. Rituximab was administered 3 weeks before the operation, and immunosuppression agents were administered 1 week before the LDLT. Plasma exchange was performed 3 times before the LDLT. The right lobe from his mother's liver was used for the ABO-incompatible LDLT. On postoperative day (POD) 9, vascular stenting for intraabdominal bleeding from the common hepatic artery was performed by interventional radiology and was followed by re-laparotomy for abdominal drainage of the hematoma. However, there were various degrees of continued bleeding thereafter. On POD 12, due to a convulsion seizure with loss of consciousness, the patient was started on anticonvulsant therapy. On POD 15, there was an increased frequency of convulsion attacks and a prolonged loss of consciousness. A lumbar puncture was performed on POD 20 due to the appearance of shingles. The positive polymerase chain reaction of the VZV-DNA from the cerebrospinal fluid was detected, and he was diagnosed with VZV encephalitis. He rapidly regained alertness, and there were no further observed convulsion attacks after administration of a steroid pulse and acyclovir. Brain magnetic resonance imaging performed on 2 subsequent postoperative months showed findings that matched with VZV encephalitis. He was discharged as he had recovered and was ambulatory 3 months after LDLT.
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