Hypereosinophilic Syndrome Presented by Hear Failure Preserved Ejection Fraction: A Case Report of The Importance of Multimodality Cardiac Imaging in Loeffler Endocarditis
1. Abstract Loeffler endocarditis is a rare restrictive cardiomyopathy caused by hypereosinophilic syndrome, characterized by hypereosinophilia and fibrous thickening of the endocardium causing progressive onset of heart failure.