Narrow QRS complexes occur regularly. This tracing suggests either atrial flutter or ventricular tachycardia. It is not atrial flutter, however. If it were, the QRS complexes occurring regularly would ...
Many adults with obstructive hypertrophic cardiomyopathy (oHCM) taking mavacamten experienced new atrial fibrillation or flutter, new-onset heart failure, and frequent acute care use within months of ...