Key result
A 34-year-old female developed fatal myocarditis secondary to influenza B infection despite an initial negative rapid influenza screen.
Case Report (n=1)
No
This case highlights that fatal viral myocarditis due to influenza B can occur in adults despite initial negative rapid screening tests.
May warrant broader testing for influenza myocarditis despite negative rapid screens; hypothesis-generating and should not yet change practice.
A 34-year-old female reported to the emergency department with a chief complaint of epigastric pain. Initial rapid screening was negative for both influenza A and B. The patient eventually developed myocarditis that led to pulseless ventricular tachycardia and death within 24 hours of admission. Viral smear was positive for influenza B postmortem despite the initial negative rapid screen. This case demonstrates the need for a new diagnostic criteria and treatment strategy for viral myocarditis due to influenza while concisely illustrating how the disease can progress in adults despite commonly presenting as a disease in adolescents.
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Dickey et al. (2018) conducted a case report in Influenza B Myocarditis (n=1). Influenza B infection was evaluated on Clinical outcome (death). A 34-year-old female developed fatal myocarditis secondary to influenza B infection despite an initial negative rapid influenza screen.
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