Long-term follow-up of septal reduction strategies in obstructive HCM reveals that surgical myectomy and ASA are effective for symptom relief and LVOT gradient reduction and are associated with favorable survival. While overall prognosis for the community HCM population is similar to the general population, the need for surgical myectomy may identify a sub-group with poorer long-term prognosis. We await long-term outcomes of more extensive myectomy approaches adopted in the past 10 years at major institutions.

Among the three common definitions of high arteriotomy, femoral artery puncture at or above the proximal third of the femoral head is the landmark that most accurately risk stratifies PCI patients for development of RPH.

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