Provocation Testing in the OR: HCM, AS and beyond – Pros, cons & open questions 21 year agoAzadopen0 Aortic StenosisHCMMitral RegurgitationProvocation testing for 1) HCM gradient measurement intraoperatively; 2) Low flow, low gradient AS; 3) MR Pros, cons and unknowns Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional)