title: Transcatheter aortic valve implantation without balloon predilatation: not always feasible.
abstract: Balloon predilatation has been regarded as an essential step before implanting the self-expandable prosthesis during transcatheter aortic valve implantation (TAVI). Recent evidence showed that without balloon predilatation, an implantation success rate of >95% could be achieved. We report two cases in which balloon predilatation was not performed initially during TAVI but eventually required it to facilitate device crossing and implantation. They illustrated the importance of case selection and alerted us the potential limitation in performing TAVI without balloon predilatation.
authors.affiliation: Cardiovascular Biomedical Research Unit, Royal Brompton Hospital, London, United Kingdom. dr_michaelchan@yahoo.com
authors.forename: Pak Hei
authors.initials: PH
authors.lastname: Chan
authors.forename: Carlo Di
authors.initials: CD
authors.lastname: Mario
authors.forename: Neil
authors.initials: N
authors.lastname: Moat
mesh_terms: D000368:Aged; D001021:Aortic Valve / Q000473:pathology*; D001024:Aortic Valve Stenosis / Q000175:diagnosis / Q000628:therapy*; D063126:Balloon Valvuloplasty; D002114:Calcinosis / Q000175:diagnosis / Q000628:therapy*; 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; D018579:Patient Selection; D011474:Prosthesis Design; D015641:Radiography, Interventional; D012307:Risk Factors; D012720:Severity of Illness Index; D016896:Treatment Outcome