National Trends and Outcomes of Endomyocardial Biopsy for Patients With Myocarditis: From the National Inpatient Sample Database

The use of EMB in hospitalizations with myocarditis has decreased over time. The use of EMB was associated with a higher likelihood of in-hospital mortality and morbidity. Whether these findings represent a causative association from the procedure or a consequence of more severe disease in this group could not be confirmed in this study.