I had my septal myectomy at Mayo 11 years ago. I have not had any recurrence of my obstruction. Though I have had to continue to take various medications, my symptoms are still vastly improved.

I wrote a blog about my Mayo myectomy you may want to check out:

http://www.cynthiassummeradventure.blogspot.com

Also, I have created a new blog about HCM with resources for those undergoing myectomy. You can find that at:
https://hcmbeat.com/resources/resources-for-patients-about-myectomy/
Wishing you all the best.