title: Role of transesophageal echocardiography in percutaneous aortic valve replacement with the CoreValve Revalving system.
abstract: Percutaneous aortic valve replacement (PAVR) is an emerging therapy for nonsurgical patients with severe aortic stenosis (AS). We examined the role of transesophageal echocardiography (TEE) in PAVR. TEE was used initially to assess the native valve and aortic root, and served as a guide during PAVR. Following prosthetic valve deployment, TEE was used to assess valve function. Eleven patients aged 82 +/- 10 years with NYHA III-IV underwent PAVR. Periprocedural TEE gave immediate information on prosthetic position and function, LV function, mitral regurgitation, pericardium, and thoracic aorta anatomy. There was excellent visual agreement between fluoroscopic and TEE images of prosthetic positioning and deployment. TEE facilitated the detection and management of procedure-related complications. Compared with pre-PAVR, AV area (0.56 +/- 0.19 cm(2) vs. 1.3 +/- 0.4 cm(2); P < 0.001) and LVEF (49 +/- 17% vs. 56 +/- 11%; P < 0.001) increased. TEE provides key anatomical and functional information, and serves as a diagnostic guide for complications, which may arise during PAVR.
authors.affiliation: Department of Cardiology, Montreal Heart Institute, Montreal, Quebec, Canada.
authors.forename: Colin
authors.initials: C
authors.lastname: Berry
authors.forename: Latifa
authors.initials: L
authors.lastname: Oukerraj
authors.forename: Anita
authors.initials: A
authors.lastname: Asgar
authors.forename: Yoan
authors.initials: Y
authors.lastname: Lamarche
authors.forename: Bertrand
authors.initials: B
authors.lastname: Marcheix
authors.forename: André Y
authors.initials: AY
authors.lastname: Denault
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Laborde
authors.forename: Raymond
authors.initials: R
authors.lastname: Cartier
authors.forename: Anique
authors.initials: A
authors.lastname: Ducharme
authors.forename: Raoul
authors.initials: R
authors.lastname: Bonan
authors.forename: Arsène J
authors.initials: AJ
authors.lastname: Basmadjian
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001024:Aortic Valve Stenosis / Q000000981:diagnostic imaging* / Q000601:surgery*; D017548:Echocardiography, Transesophageal / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D025321:Surgery, Computer-Assisted / Q000379:methods*; D016896:Treatment Outcome