Key result
Influenza A linked to rapidly reversible stress-induced cardiomyopathy and new LBBB.
Why the study?
Influenza is a known cause of myopericarditis, but only a few case reports have documented it as an etiology of takotsubo or stress-induced cardiomyopathy.
Case Report (n=1)
Single case links influenza to takotsubo cardiomyopathy; leaves open causal role pending larger studies.
Influenza infections are prevalent and have a large impact on our health system. They are associated with multiorgan complications that can have significant morbidity and mortality. Although influenza is a known etiology of myopericarditis, only a few case reports have documented influenza as a cause of takotsubo cardiomyopathy or stress-induced cardiomyopathy. We present a patient who developed a new left bundle branch block with positive cardiac markers, nonobstructive coronary arteries and a new cardiomyopathy that reversed within 48 hours of diagnosis of influenza A infection. This case highlights a rarer cardiovascular complication of influenza; one that would dictate medication changes, require close follow-up, and have a possibility of recurring.
No takes yet. Share an insight, caveat, or question.
Faircloth et al. (2019) conducted a case report in Influenza A-associated Transient Cardiomyopathy (n=1). Influenza A infection was evaluated. A 59-year-old woman developed a new left bundle branch block and transient stress-induced cardiomyopathy that reversed within 48 hours of diagnosis of influenza A infection.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: