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Electroencephalogram-Based Prognosis of Cardiac Surgery — A Long-Term Follow-Up Study

  • Phiroze L. Hansotia
  • Percy N. Karanjia
  • Richard D. Sautter
  • William O. Myers
  • Jefferson F. RayIII
  • Betty Ann Becker
  • Willard E. Pierce

Abstract

Hansotia et al. [1] reported on the use of electroencephalogram (EEG) in determining the immediate outcome of cardiac surgery. During a two year period between 1970 and 1972, 117 patients undergoing cardiac operations were studied. EEGs were recorded pre-operatively, in the recovery room (up to 12 hr. post-operatively), 24 hr., 2 days, 7 days, and at regular weekly intervals if abnormal. Operative and anesthesia data were correlated with EEG findings. All patients had normal EEGs pre-operatively. On the basis of EEG criteria, four groups were identified: Group I — The EEG remained normal throughout the postoperative period (41 patients); Group II — Diffuse, nonspecific EEG abnormalities in the recovery room, followed by a normal EEG thereafter (25 patients); Group III — Abnormal EEG in the recovery room with essentially no change throughout the remainder of the hospital stay (40 patients); and Group IV — Abnormal EEG in the recovery room with a progressively worsening pattern until the patient died (11 patients).

Keywords

Recovery Room Cardiac Surgery Patient Coronary Arteriography Normal EEGs Coronary Artery Surgery Study 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1990

Authors and Affiliations

  • Phiroze L. Hansotia
    • 1
  • Percy N. Karanjia
    • 1
  • Richard D. Sautter
    • 1
  • William O. Myers
    • 1
  • Jefferson F. RayIII
    • 1
  • Betty Ann Becker
    • 1
  • Willard E. Pierce
    • 1
  1. 1.Marshfield Clinic and Marshfield Medical Research FoundationMarshffieldUSA

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