title: Assessment of arteriovenous blood flow during retrograde cerebral perfusion.
abstract: OBJECTIVE
  This study examined arterial and venous blood flow during retrograde cerebral perfusion (RCP) to quantify what proportion of arterial inflow is not recovered as venous outflow.
  
  
  METHODS
  Prospective.
  
  
  METHODS
  Community hospital, university setting, single institution.
  
  
  METHODS
  Twelve patients undergoing reconstructive aortic arch surgery with profound hypothermic circulatory arrest and RCP.
  
  
  METHODS
  None.
  
  
  RESULTS
  RCP arterial inflow and venous outflow measurements were recorded at 2-minute intervals for 10 minutes, averaged, and then compared. Only 44.9%+/-16.3% of RCP inflow returned through the aortic arch. The remainder was not recovered.
  
  
  CONCLUSIONS
  Internal jugular venous valves, sequestration, and shunting may contribute to arterial inflow diversion during RCP.
authors.affiliation: Department of Anesthesiology, Baylor College of Medicine and The Methodist Hospital, Houston, TX, USA.
authors.forename: P G
authors.initials: PG
authors.lastname: Loubser
mesh_terms: D000368:Aged; D000784:Aortic Dissection / Q000601:surgery; D001013:Aorta, Thoracic / Q000601:surgery; D017545:Aortic Aneurysm, Thoracic / Q000601:surgery; D001794:Blood Pressure / Q000502:physiology; D002536:Cerebral Arteries / Q000502:physiology; D002550:Cerebral Veins / Q000502:physiology; D002560:Cerebrovascular Circulation / Q000502:physiology*; D005260:Female; D006324:Heart Arrest, Induced; D006801:Humans; D007036:Hypothermia, Induced; D007601:Jugular Veins / Q000502:physiology; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012307:Risk Factors; D013997:Time Factors