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


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).


Recovery Room Cardiac Surgery Patient Coronary Arteriography Normal EEGs Coronary Artery Surgery Study 
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  1. 1.
    P. L. Hansotia, W. O. Myers, J. F. Ray, III, C. Greehling, and R. D. Sautter, Prognostic value of electroencephalography in cardiac surgery, Ann. Thorac. Surg.. 19:127 (1975).PubMedCrossRefGoogle Scholar
  2. 2.
    T. Aberg and M. Kihlgren, Cerebral protection during open-heart, surgery, Thorax. 32: 525 (1977).Google Scholar
  3. M. A. Branthwaite, Prevention of neurological damage during open-heart surgery, Thorax. 30: 258 (1975).Google Scholar
  4. I. Juneja, R. E. Flynn, and R. L. Berger, The arterial, venous pressures and the electroencephalogram during open heart surgery, Acta Neurol. Scand. 48:163 (1972). PubMedCrossRefGoogle Scholar
  5. 5.
    P. E. Kritikou and M. A. Branthwaite, Significance of changes in cerebral electrical activity at onset of cardiopulmonary bypass, Thorax. 32: 534 (1977).Google Scholar
  6. 6.
    R. R. Myers, J. J. Stockard, and L. J. Saidman, Monitoring of cerebral perfusion during anesthesia by time-compressed Fourier analysis of the electroencephalogram, Stroke. 8: 331 (1977).Google Scholar
  7. 7.
    T. A. Salerno, D. P. Lince, D. N. White, R. B. Lynn, and E. J. P. Charrett, Monitoring of electroencephalogram during open-heart surgery. A prospective analysis of 118 cases, J. Thorac. Cardiovasc. Surg. 76:97 (1978).PubMedGoogle Scholar
  8. 8.
    K. A. Sotaniemi, Clinical and prognostic correlates of EEG in open-heart surgery patients, J. Neurol. Neurosurg. Psychiatry. 43:941 (1980). PubMedCrossRefGoogle Scholar
  9. 9.
    K. A. Sotaniemi, The benefits of open-heart surgery as reflected in the EEG, Scand. J. Thorac. Cardiovasc. Surg. 15:205 (1981).Google Scholar
  10. 10.
    K. A. Sotaniemi, A. Juolasmaa, and T. E. Hokkanen, Neuropsychologic outcome after open-heart surgery. Arch. Neurol. 38:2 (1981). PubMedGoogle Scholar
  11. 11.
    K. A. Sotaniemi, I. A. Sulg, and T. E. Hokkanen, Quantitative EEG as a measure of cerebral dysfunction before and after open-heart surgery, Electroencephalog. Clin. Neurophysiol. 50:81 (1980).CrossRefGoogle Scholar
  12. 12.
    M. M. Witoszka, H. Tamura, R. Indeglia, R. W. Hopkins and F. A. Simeone, Electroencephalographic changes and cerebral complications in open-heart surgery, J. Thorac. Cardiovasc. Surg. 66:855 (1973).PubMedGoogle Scholar
  13. 13.
    J. S. Wright, A. K. Lethlean, R. G. Hicks, T. A. Torda, and R. Stacey, Electroencephalographic studies during open-heart surgery, J. Thorac. Cardiovasc. Surg. 63:631 (1972). PubMedGoogle Scholar
  14. 14.
    K. A. Sotaniemi, Five-year neurological and EEG outcome after open-heart surgery, J. Neurol. Neurosurg. Psychiatry. 48:569 (1985).PubMedCrossRefGoogle Scholar
  15. 15.
    K. A. Sotaniemi, Cerebral outcome after extra- corporeal circulation: Comparison between prospective and retrospective evaluations. Arch. Neurol. 40:75 (1983).PubMedGoogle Scholar
  16. 16.
    B. J. Gersh, R- A. Kronmal, R. L. Frye, H. V. Schaff, T. J. Ryan, A. J. Gosselin, G. C. Kaiser, T. Killip, III, and Participants in the Coronary Artery Surgery Study, Coronary arteriography and coronary artery bypass surgery: Morbidity and mortality in patients ages 65 years or older: A report from the coronary artery surgery study. Circulation, 67: 483 (1983).PubMedCrossRefGoogle Scholar
  17. 17.
    J. W. Kennedy, G. C. Kaiser, L. D. Fisher, J. K. Fritz, W. Myers, J. G. Mudd, and T. J. Ryan, Clinical and angiographic predictors of operative mortality from the collaborative study in coronary artery surgery (CASS), Circulation. 63: 793 (1981).PubMedGoogle Scholar
  18. 18.
    M. G. Bourassa, L. Campeau, J. Lesperance, and C. M. Grondin, Changes in grafts and coronary arteries after saphenous vein aortocoronary bypass surgery: Results at repeat angiography. Circulation65 (Suppl II):II90 (1982).Google Scholar
  19. 19.
    J. R. Kramer, Y. Matsuda, J. C. Mulligan, M. Aronow, and W. L. Proudfit, Progression of coronary atherosclerosis. Circulation. 63: 519 (1981).Google Scholar
  20. 20.
    A. V. G. Bruschke, T. S. Wijers, W. Kolsters, and J. Landmann, The anatomic evolution of coronary artery disease demonstrated by coronary arteriography in 256 non-operated patients. Circulation. 63: 527 (1981).Google Scholar
  21. 21.
    D. M. Cosgrove, F. D. Loop, and W. C. Sheldon, Results of myocardial revascularization: A 12-year experience. Circulation65 (Suppl II): II37 (1982).Google Scholar

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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