Then in 1995 alcohol septal ablation was introduced as a less invasive alternative therapy in selected patients. [2] The ventricular septal myectomy (also known as the Morrow procedure ...

SAM-related: arising from septal contact with the SAM, leading to dynamic mitral regurgitation. SAM-free: caused by septal contact with a malpositioned or aberrant papillary muscle, abnormal ...

The implications for alcohol septal ablation were even more pronounced. Patients treated by low-volume operators had a three- to fourfold increase in the risk of 30-day mortality and higher rates ...