Burn-associated delayed dilated cardiomyopathy evaluated by cardiac PET and SPECT: Report of a case

Reimu Fukui, Hideaki Suzuki, Noriko Miyagawa, Tomoyuki Endo, Tomohiro Kaneta, Koichiro Sugimura, Yasuharu Matsumoto, Shoki Takahashi, Yutaka Kagaya, Shigeki Kushimoto, Hiroaki Shimokawa

Research output: Contribution to journalArticle

Abstract

Dilated cardiomyopathy is a delayed-onset and rarely reported cardiac complication of burn injury although the mechanism remains unclear. We thus report a case of dilated cardiomyopathy following severe burn injury, in which technetium 99m sestamibi single-photon emission computed tomography (SPECT), iodine-123 beta-methyl-iodophenylpentadecanoic acid SPECT and 18F-fluorodeoxyglucose positron emission tomography (PET) were performed to evaluate the pathophysiologic condition in combination with cardiac catheterization and myocardial biopsy. The cardiac PET and SPECT images showed reduced myocardial blood flow, decreased fatty acid metabolism, and increased glucose utilization in the left ventricular lateral wall in spite of normal coronary angiography, no significant cardiac fibrosis, and inflammatory cell infiltration, which suggests that myocardial ischemia due to microcirculatory disturbance in hypermetabolic state associated with burn injury might be a causative mechanism of dilated cardiomyopathy in this case. A beta blocker, bisoprolol, was successfully introduced in this patient in combination with oral inotropic agents, pimobendan and digitalis after the prolonged use of intravenous dobutamine infusion, which might have been beneficial for this patient with burn-associated dilated cardiomyopathy not only to reduce regional myocardial ischemia but also to attenuate hypermetabolic state after severe burn injury.<. Learning objective: Dilated cardiomyopathy complicated with burn injury has been reported to cause a sudden attack of dyspnea and death. This case report suggests that burn-associated dilated cardiomyopathy may be caused by relative myocardial ischemia due to microvascular disturbance in hypermetabolic state associated with burn injuries and can be treated effectively with beta blockers with or without oral inotropic agents.>.

Original languageEnglish
Pages (from-to)180-183
Number of pages4
JournalJournal of Cardiology Cases
Volume10
Issue number5
DOIs
Publication statusPublished - 2014

Keywords

  • Burn injury
  • Dilated cardiomyopathy
  • Heart failure
  • PET
  • SPECT

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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    Fukui, R., Suzuki, H., Miyagawa, N., Endo, T., Kaneta, T., Sugimura, K., Matsumoto, Y., Takahashi, S., Kagaya, Y., Kushimoto, S., & Shimokawa, H. (2014). Burn-associated delayed dilated cardiomyopathy evaluated by cardiac PET and SPECT: Report of a case. Journal of Cardiology Cases, 10(5), 180-183. https://doi.org/10.1016/j.jccase.2014.07.005