title: Evaluation of a new 9F guiding catheter for directional coronary atherectomy.
abstract: Large lumen guiding catheters (9.5 to 11 French) are currently required to perform directional atherectomy. These rigid guiding catheters require modifications of usual techniques for manipulation and can induce ostial trauma and peripheral vascular complications. A new type of 9 French guiding catheter (Vista Brite tip, Cordis, Miami, FL) with an inner diameter of 0.098 inch and capable of accomodating atherectomy catheters (SCA-EX) was evaluated. In this preliminary study, 31 consecutive patients were included. Primary success was obtained in 27 (87%); no ostial trauma and only two minor groin hematomas were observed. After exchange with a conventional 10F guiding catheter, because of poor back-up, two of the four failures were successfully treated by DCA. In conclusion, these new 9F guiding catheters provide a useful alternative to currently available guiding catheters for DCA. Nevertheless, new shapes with better back-up are necessary to improve the primary success rate.
authors.affiliation: Interventional Cardiology Department, Centre Médico-Chirurgical Parly 2, Le Chesnay, France.
authors.forename: Y
authors.initials: Y
authors.lastname: Guérin
authors.forename: E
authors.initials: E
authors.lastname: Garcia-Cantu
authors.forename: X
authors.initials: X
authors.lastname: Favereau
authors.forename: F
authors.initials: F
authors.lastname: Funck
authors.forename: M
authors.initials: M
authors.lastname: Toussaint
authors.forename: G
authors.initials: G
authors.lastname: Souffrant
authors.forename: T
authors.initials: T
authors.lastname: Corcos
mesh_terms: D000328:Adult; D000368:Aged; D017225:Atherectomy, Coronary / Q000295:instrumentation*; D002404:Catheterization; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000628:therapy; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies