title: Techniques and material used in the percutaneous treatment of chronic coronary occlusions. Data from the CIBELES study.
abstract: BACKGROUND
  In recent years, various specific techniques and materials have been developed for the treatment of coronary chronic total occlusions (CTO).
  
  
  OBJECTIVE
  To evaluate the current situation in the treatment of CTO (techniques and material) in our setting.
  
  
  METHODS
  We evaluated data on techniques and material used in the CIBELES (ChronIc coronary occlusion treated By EveroLimus Eluting Stent) trial, a randomized comparison of sirolimus- and everolimus-eluting stents in 207 patients with CTO in 13 centers in Spain and Portugal.
  
  
  RESULTS
  A radial approach was used in 23% of patients, and retrograde techniques were used in only 5%. A high number of balloons were used (2.2±0.9 per patient). Microcatheters were used in 33% of patients, and post-dilatation balloons in only 25%. The mean number of stents implanted per patient was 2.1±1.0, with a mean total stent length of 49±24 mm. Other devices and techniques used were: Tornus penetration catheter in 4% of patients, rotational atherectomy in 2%, and cutting balloon in 1%. Intracoronary ultrasound was used in only 6% of patients. In 34% of cases, operators used guidewires that were not specifically for CTO. Considerable variability between centers was detected in the use of different techniques, the highest and lowest variability being observed in the use of intracoronary ultrasound and the use of CTO guidewires, respectively.
  
  
  CONCLUSIONS
  In the CIBELES trial, techniques and devices specifically designed for the treatment of CTO were used in a relatively low proportion of patients. Considerable variability between centers was detected.
authors.affiliation: Interventional cardiology, University Hospital La Paz, Madrid, Spain. raulmorenog@hotmail.com
authors.forename: Raul
authors.initials: R
authors.lastname: Moreno
authors.forename: Eulogio
authors.initials: E
authors.lastname: García
authors.forename: Rui
authors.initials: R
authors.lastname: Teles
authors.forename: Jose-Ramon
authors.initials: JR
authors.lastname: Rumoroso
authors.forename: Henrique
authors.initials: H
authors.lastname: Cyrne Carvalho
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Goicolea
authors.forename: José
authors.initials: J
authors.lastname: Moreu
authors.forename: Fina
authors.initials: F
authors.lastname: Mauri
authors.forename: Manel
authors.initials: M
authors.lastname: Sabaté
authors.forename: Vicente
authors.initials: V
authors.lastname: Mainar
authors.forename: Lino
authors.initials: L
authors.lastname: Patricio
authors.forename: Mariano
authors.initials: M
authors.lastname: Valdés
authors.forename: Carlos
authors.initials: C
authors.lastname: Cuellas
authors.forename: Manuel
authors.initials: M
authors.lastname: Almeida
authors.forename: Angel
authors.initials: A
authors.lastname: Sánchez-Recalde
authors.forename: Guillermo
authors.initials: G
authors.lastname: Galeote
authors.forename: Santiago
authors.initials: S
authors.lastname: Jimenez-Valero
authors.forename: Luis
authors.initials: L
authors.lastname: Calvo
authors.forename: Ignacio
authors.initials: I
authors.lastname: Plaza
authors.forename: Jose-Luis
authors.initials: JL
authors.lastname: Lopez-Sendón
authors.forename: Jose-Luis R
authors.initials: JL
authors.lastname: Martín
mesh_terms: D006348:Cardiac Surgical Procedures / Q000295:instrumentation / Q000379:methods; D054059:Coronary Occlusion / Q000628:therapy*; D054855:Drug-Eluting Stents; D000068338:Everolimus; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016032:Randomized Controlled Trials as Topic; D020123:Sirolimus / Q000008:administration & dosage* / Q000031:analogs & derivatives*
chemical_list: D000068338:Everolimus; D020123:Sirolimus
keywords: Angioplastia coronária; Chronic occlusion; Coronary angioplasty; Coronary artery disease; Coronary stents; Doença coronária; Oclusões crónicas; Stents coronários