title: Coronary Artery Bypass Graft Surgery Using the Radial Artery, Right Internal Thoracic Artery, or Saphenous Vein as the Second Conduit.
abstract: BACKGROUND
  It is not clear whether radial artery (RA), right internal thoracic artery (RITA), or saphenous vein (SV) is the preferred second bypass graft during coronary artery bypass graft surgery using the left internal thoracic artery (LITA) in patients aged less or greater than 70 years.
  
  
  METHODS
  Late survival data were collected for 13,324 consecutive, isolated, primary coronary artery bypass graft surgery patients from three hospitals. Cox regression analysis was performed on all patients grouped by age.
  
  
  RESULTS
  Adjusted Cox regression showed overall better RA versus SV survival (hazard ratio [HR] 0.82, p < 0.001) and no difference in RITA versus SV survival (HR 0.95, p = 0.35). However, the survival benefit of RA versus SV was seen only in patients aged less than 70 years (HR 0.77, p < 0.001); and RITA patients aged less than 70 years also had a survival benefit compared with SV (HR 0.86, p = 0.03). There was no difference in survival for RA versus RITA across all ages.
  
  
  CONCLUSIONS
  For patients aged less than 70 years, the optimal grafting strategy is using either RA or RITA as the second preferred graft. In patients aged 70 years or more, RA and RITA grafting should be used selectively. Multiple arterial grafting using either RA or RITA should be more widely utilized during coronary artery bypass graft surgery for patients less than 70 years of age.
authors.affiliation: Department of Cardiovascular Surgery, Mount Sinai Beth Israel, New York, New York. Electronic address: rft9008@med.cornell.edu.
authors.forename: Robert F
authors.initials: RF
authors.lastname: Tranbaugh
authors.affiliation: Division of Cardiothoracic Surgery, University of Toledo Medical Center, Toledo, Ohio.
authors.forename: Thomas A
authors.initials: TA
authors.lastname: Schwann
authors.affiliation: Division of Cardiothoracic Surgery, Mount Sinai St. Luke's, New York, New York.
authors.forename: Daniel G
authors.initials: DG
authors.lastname: Swistel
authors.affiliation: Department of Cardiovascular Surgery, Mount Sinai Beth Israel, New York, New York.
authors.forename: Kamellia R
authors.initials: KR
authors.lastname: Dimitrova
authors.affiliation: Outcomes Research Unit and Vascular Medicine Program, American University of Beirut Medical Center, Beirut, Lebanon.
authors.forename: Laila
authors.initials: L
authors.lastname: Al-Shaar
authors.affiliation: Department of Cardiovascular Surgery, Mount Sinai Beth Israel, New York, New York.
authors.forename: Darryl M
authors.initials: DM
authors.lastname: Hoffman
authors.affiliation: Department of Cardiovascular Surgery, Mount Sinai Beth Israel, New York, New York.
authors.forename: Charles M
authors.initials: CM
authors.lastname: Geller
authors.affiliation: Division of Anesthesia, Mercy Saint Vincent Medical Center, Toledo, Ohio.
authors.forename: Milo
authors.initials: M
authors.lastname: Engoren
authors.affiliation: Division of Cardiothoracic Surgery, Mount Sinai St. Luke's, New York, New York.
authors.forename: Sandhya K
authors.initials: SK
authors.lastname: Balaram
authors.affiliation: Department of Cardiovascular Surgery, Mount Sinai Beth Israel, New York, New York.
authors.forename: John D
authors.initials: JD
authors.lastname: Puskas
authors.affiliation: Outcomes Research Unit and Vascular Medicine Program, American University of Beirut Medical Center, Beirut, Lebanon.
authors.forename: Robert H
authors.initials: RH
authors.lastname: Habib
mesh_terms: D000368:Aged; D001026:Coronary Artery Bypass / Q000379:methods*; D003324:Coronary Artery Disease / Q000401:mortality / Q000601:surgery*; D005500:Follow-Up Studies; D005544:Forecasting; D017052:Hospital Mortality / Q000639:trends; D006801:Humans; D008323:Mammary Arteries / Q000637:transplantation*; D008875:Middle Aged; D057216:Propensity Score; D017534:Radial Artery / Q000637:transplantation*; D012189:Retrospective Studies; D012501:Saphenous Vein / Q000637:transplantation*; D015996:Survival Rate / Q000639:trends; D016896:Treatment Outcome; D014481:United States / Q000453:epidemiology