Percutaneous myocardial ablation for left mid-ventricular obstructive hypertrophic cardiomyopathy

Area of Science:

• Cardiology
• Interventional Cardiology
• Cardiac Imaging

Background:

• Mid-ventricular obstructive hypertrophic cardiomyopathy (MVOHC) is a rare cardiac condition characterized by an hourglass left ventriculogram and intraventricular pressure gradients.
• Diagnosis relies on left ventriculography and hemodynamic assessment, with limited less invasive treatment options beyond pharmacologic therapy.

Observation:

• A case of MVOHC with an apical aneurysm presented with significant clinical symptoms and intraventricular pressure gradients.
• The patient did not respond adequately to conventional pharmacologic therapy.

Findings:

• Percutaneous alcohol ablation targeting the distal left anterior descending artery was successfully performed.
• This intervention led to significant relief of clinical symptoms and reduction of the intraventricular pressure gradient.

Implications:

• Percutaneous alcohol ablation offers a viable, less invasive alternative to surgery for select MVOHC patients, particularly those with apical aneurysms.
• This case highlights the potential of targeted alcohol ablation in managing complex hypertrophic cardiomyopathy presentations.
• Further research into percutaneous ablation techniques could expand treatment options for obstructive cardiomyopathies.