title: [Technical aspects of coronary sinus catheterization based on the atrial component of the intracavitary electrogram and radiological anatomy during the implantation procedure of a biventricular pacemaker].
abstract: OBJECTIVE
  To present a technical proposal based on the experience of 130 implantations using a simplified technique for coronary sinus catheterization, based on the atrial component of the intracavitary electrogram and radiological anatomy.
  
  
  METHODS
  From October, 2001 to October, 2004, 130 biventricular pacemaker implantations were performed, using radiological anatomy and observation of the intracavitary electrogram, focusing on the atrial component.
  
  
  RESULTS
  The implantation of the system using left ventricular pacing via coronary sinus was not possible in 8 patients. Difficulties on the cannulation of the coronary ostium were felt in 12 patients and difficulties of lead advancement through the coronary sinus were felt in 15 patients. The mean time of radioscopy utilization was 18.69 min.
  
  
  CONCLUSIONS
  The implantation technique, using the atrial component morphology of the intracavitary electrogram and radiological anatomy showed to be workless, safe and effective for the cannulation of the coronary sinus ostium requesting reduced time of radioscopy.
authors: Real e Benemérita Sociedade Portuguesa de Beneficência, Universidade de Campinas, São Paulo, SP. fssouza@cardiol.br
authors: Fernando Sérgio Oliva de
authors: FS
authors: Souza
authors: Nicola Luciano
authors: NL
authors: Mortati
authors: Domingo Marcolino
authors: DM
authors: Braile
authors: Reinaldo Wilson
authors: RW
authors: Vieira
authors: Salomon Ordinola
authors: SO
authors: Rojas
authors: Alessandre Caputo
authors: AC
authors: Rabelo
authors: Januário Manuel de
authors: JM
authors: Souza
authors: Sérgio Almeida de
authors: SA
authors: Oliveira