Domestically Acquired Leptospirosis Complicated by Myocardial Involvement: A Case Report from Japan

Abstract

Leptospirosis can cause myocardial involvement that mimics viral myocarditis. We herein report the case of a 77-year-old man without a history of overseas travel who presented with flu-like symptoms, elevated inflammatory marker levels, and an impaired cardiac function. As acute myocarditis was suspected, the patient was transferred to a tertiary care center, where leptospirosis was diagnosed. Antimicrobial therapy was initiated, and the patient's condition improved. Myocardial involvement associated with leptospirosis should be considered in selected patients. This case highlights the importance of assessing the cardiac function during clinical evaluation.

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BibTeX RIS

BibTeX

@article{matsuda2026domestically,
  title = {{Domestically Acquired Leptospirosis Complicated by Myocardial Involvement: A Case Report from Japan}},
  author = {Hiroaki Matsuda and Takahiro Sakamoto and Yuki Yoshioka and Katsuki Kanai and Keiichi Yamasaki and Hiroyuki Fukuhara and Kazuaki Tanabe and Shuichi Sato},
  journal = {Internal Medicine},
  year = {2026},
  month = aug,
  doi = {10.2169/internalmedicine.7346-26},
  url = {https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7346-26/_article},
  note = {CC BY-NC-ND},
}

RIS

TY  - JOUR
TI  - Domestically Acquired Leptospirosis Complicated by Myocardial Involvement: A Case Report from Japan
AU  - Hiroaki Matsuda
AU  - Takahiro Sakamoto
AU  - Yuki Yoshioka
AU  - Katsuki Kanai
AU  - Keiichi Yamasaki
AU  - Hiroyuki Fukuhara
AU  - Kazuaki Tanabe
AU  - Shuichi Sato
PY  - 2026
DA  - 2026/08/08
JO  - Internal Medicine
DO  - 10.2169/internalmedicine.7346-26
UR  - https://www.jstage.jst.go.jp/article/internalmedicine/advpub/0/advpub_7346-26/_article
AB  - Leptospirosis can cause myocardial involvement that mimics viral myocarditis. We herein report the case of a 77-year-old man without a history of overseas travel who presented with flu-like symptoms, elevated inflammatory marker levels, and an impaired cardiac function. As acute myocarditis was suspected, the patient was transferred to a tertiary care center, where leptospirosis was diagnosed. Antimicrobial therapy was initiated, and the patient's condition improved. Myocardial involvement associated with leptospirosis should be considered in selected patients. This case highlights the importance of assessing the cardiac function during clinical evaluation.
SN  - 1349-7235
SN  - 0918-2918
ER  -

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