Peer-reviewedCC BY-NC-NDInternal Medicine
Successful Treatment of Varicella Zoster Encephalitis in a Sarcopenic Obese Patient after Acyclovir-induced Acute Kidney Injury: The Necessity of Individualized Dosing
Abstract
Acyclovir (ACV) is the first-line agent for varicella zoster virus (VZV) encephalitis. Acute kidney injury (AKI) remains a clinical concern. We report the case of a sarcopenic obese woman with VZV encephalitis. She developed AKI 2 days after receiving intravenous ACV based on her actual body weight. After temporarily discontinuing ACV and confirming recovery of the renal function, ACV was restarted at a dose based on her ideal body weight. The patient recovered without any further complications. This case underscores the importance of dose adjustment of water-soluble medications, such as ACV, in obese patients, particularly in those with sarcopenic obesity.
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BibTeX
@article{takahashi2026successful,
title = {{Successful Treatment of Varicella Zoster Encephalitis in a Sarcopenic Obese Patient after Acyclovir-induced Acute Kidney Injury: The Necessity of Individualized Dosing}},
author = {Yugo Takahashi and Akihiro Tsukahara and Takuya Nishina and Hiroo Yoshikawa and Takashi Uzu},
journal = {Internal Medicine},
year = {2026},
month = aug,
doi = {10.2169/internalmedicine.6635-25},
url = {https://www.jstage.jst.go.jp/article/internalmedicine/65/16/65_6635-25/_article},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Successful Treatment of Varicella Zoster Encephalitis in a Sarcopenic Obese Patient after Acyclovir-induced Acute Kidney Injury: The Necessity of Individualized Dosing
AU - Yugo Takahashi
AU - Akihiro Tsukahara
AU - Takuya Nishina
AU - Hiroo Yoshikawa
AU - Takashi Uzu
PY - 2026
DA - 2026/08/15
JO - Internal Medicine
DO - 10.2169/internalmedicine.6635-25
UR - https://www.jstage.jst.go.jp/article/internalmedicine/65/16/65_6635-25/_article
AB - Acyclovir (ACV) is the first-line agent for varicella zoster virus (VZV) encephalitis. Acute kidney injury (AKI) remains a clinical concern. We report the case of a sarcopenic obese woman with VZV encephalitis. She developed AKI 2 days after receiving intravenous ACV based on her actual body weight. After temporarily discontinuing ACV and confirming recovery of the renal function, ACV was restarted at a dose based on her ideal body weight. The patient recovered without any further complications. This case underscores the importance of dose adjustment of water-soluble medications, such as ACV, in obese patients, particularly in those with sarcopenic obesity.
SN - 1349-7235
SN - 0918-2918
ER -