Emerging Pharmacological and Invasive Therapies for Hypertrophic Cardiomyopathy with Obstructive Physiology

Hypertrophic cardiomyopathy is a prevalent condition characterised by ventricular hypertrophy, which results in left ventricular outflow obstruction in two-thirds of patients. Traditional pharmacological therapies, including β-blockers, calcium channel blockers and disopyramide, have been the cornerstone of symptom management but lack disease-modifying effects. The introduction of cardiac myosin inhibitors as the first therapy to directly target sarcomeric hypercontractility has dramatically changed clinical practice. However, several logistical factors presently limit the widespread adoption of cardiac myosin inhibitors, and their long-term side-effects and outcomes require ongoing investigation. Emerging pharmacological approaches, including EDG-7500 and gene therapies, aim to refine treatment strategies. For patients with refractory symptoms, invasive septal reduction therapies, including surgical myectomy and alcohol septal ablation, remain critical. Innovations such as radiofrequency ablation and septal scoring along the midline endocardium (SESAME) offer promising, minimally invasive alternatives. As treatment options expand, optimising patient selection, monitoring protocols and long-term outcomes remain essential to advancing care for patients with obstructive hypertrophic cardiomyopathy.