Acute fulminant eosinophilic myocarditis due to Giardia lamblia infection

We read the publication on “Acute fulminant eosinophilic myocarditis due to Giardia lamblia infection presented with cardiogenic shock in a young patient” with a great interest (1). Avsar et al. (1) mentioned that “To the best of our knowledge, this is the first case report of acute fulminant eosinophilic myocarditis due to Giardia lamblia infection presented with cardiogenic shock”. In fact, acute fulminant eosinophilic cardiac involvement is a possible rare clinical complication in giardiasis (2). However, it should be noted that the present study is not the first clinical case report as mentioned by Avsar et al. (1). There is at least one case reported previously by Dzierwa et al. (3), in which a patient presented with acute fulminant eosinophilic myocarditis due to giardiasis. In that case, the patient also presented with chest pain, dyspnea, and cardiogenic shock (3).