title: Postdilatation for treatment of perivalvular aortic regurgitation after transcatheter aortic valve implantation.
abstract: OBJECTIVE
  The study is made to describe the efficacy and safety of balloon postdilatation (BPD) for the treatment of residual aortic regurgitation (RAoR) after transcatheter aortic valve implantation (TAVI).
  
  
  RESULTS
  A single-center observational study is made with 157 consecutive patients accepted to TAVI. The patients were divided into two groups (no BPD-period and BPD-period). Before BPD, RAoR ≥ 2 was seen in 25% of the patients in group 1 and in 29% of the patients in group 2 (P ≥ 0.593). BPD was carried out in 95% (n = 21) of the patients in group 2 with RAoR ≥ 2. Regurgitation improved one grade in 68% of the cases (n = 15), 2 grades in 14% (n = 3), and remained without change in 18% (n = 4). RAoR < 2 was achieved in 91% (n = 73) of the patients in group 2 versus 75% (n = 58) in group 1 (RR = 0.35, 95% CI 0.16-0.80, P = 0.013). We recorded no aortic ring ruptures, damage to the device or displacements. Slight central regurgitation not present before BPD was registered in one case.
  
  
  CONCLUSIONS
  BPD offers a very good safety profile and reduces RAoR in a large percentage of cases. BPD should be considered for the treatment of moderate to severe RAoR following TAVI.
authors.affiliation: Department of Interventional Cardiology, Policlínica Gipuzkoa, San Sebastián, Spain.
authors.forename: Garikoitz
authors.initials: G
authors.lastname: Lasa
authors.forename: Koldo
authors.initials: K
authors.lastname: Gaviria
authors.forename: Juan C
authors.initials: JC
authors.lastname: Sanmartín
authors.forename: Miren
authors.initials: M
authors.lastname: Telleria
authors.forename: Mariano
authors.initials: M
authors.lastname: Larman
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D001022:Aortic Valve Insufficiency / Q000175:diagnosis / Q000209:etiology / Q000628:therapy*; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000628:therapy*; D063126:Balloon Valvuloplasty / Q000009:adverse effects; D006328:Cardiac Catheterization / Q000009:adverse effects* / Q000295:instrumentation; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects* / Q000295:instrumentation / Q000379:methods; D006801:Humans; D008297:Male; D011474:Prosthesis Design; D012720:Severity of Illness Index; D013030:Spain; D016896:Treatment Outcome
keywords: TAVI; aortic valve regurgitation; aortic valve stenosis; balloon dilatation