Hi Everyone,
I do have some information regarding this topic.
It appears to be true that Memory Loss can occur from use of the Heat / Lung by-pass machine.
I have had extensive tests done on this personally this past year, and my doctors agree that memory loss is indeed a possiblity for me due to my surgery.
Many studies were conducted by Duke Universty. You can go to their web site and do a search on memory loss and the heart/lung machiine.
Also, this topic was a feature on ABC a few years back.
The new England Journal of Medicine has also published the following article.
The New England Journal of Medicine -- February 8, 2001 -- Vol. 344, No. 6
Longitudinal Assessment of Neurocognitive Function after Coronary-Artery Bypass Surgery
Mark F. Newman, Jerry L. Kirchner, Barbara Phillips-Bute, Vincent Gaver, Hilary Grocott, Robert H. Jones, Daniel B. Mark, Joseph G. Reves, James A. Blumenthal, for the Neurological Outcome Research Group and the Cardiothoracic Anesthesiology Research Endeavors Investigators
Abstract
Background. Cognitive decline complicates early recovery after coronary-artery bypass grafting (CABG) and may be evident in as many as three quarters of patients at the time of discharge from the hospital and a third of patients after six months. We sought to determine the course of cognitive change during the five years after CABG and the effect of perioperative decline on long-term cognitive function.
Methods. In 261 patients who underwent CABG, neurocognitive tests were performed preoperatively (at base line), before discharge, and six weeks, six months, and five years after CABG surgery. Decline in postoperative function was defined as a drop of 1 SD or more in the scores on tests of any one of four domains of cognitive function. (A reduction of 1 SD represents a decline in function of approximately 20 percent.) Overall neurocognitive status was assessed with a composite cognitive index score representing the sum of the scores for the individual domains. Factors predicting long-term cognitive decline were determined by multivariable logistic and linear regression.
Results. Among the patients studied, the incidence of cognitive decline was 53 percent at discharge, 36 percent at six weeks, 24 percent at six months, and 42 percent at five years. We investigated predictors of cognitive decline at five years and found that cognitive function at discharge was a significant predictor of long-term function (P<0.001).
Conclusions. These results confirm the relatively high prevalence and persistence of cognitive decline after CABG and suggest a pattern of early improvement followed by a later decline that is predicted by the presence of early postoperative cognitive decline. Interventions to prevent or reduce short- and long-term cognitive decline after cardiac surgery are warranted. (N Engl J Med 2001;344:395-402.)
Source Information
From the Department of Anesthesiology (M.F.N., J.L.K., B.P.-B., V.G., H.G., J.G.R.), the Department of Surgery (R.H.J.), the Division of Cardiology (D.B.M.), and the Department of Psychiatry and Behavioral Science (J.A.B.), Duke University Medical Center, Durham, N.C. Address reprint requests to Dr. Newman at the Division of Cardiothoracic Anesthesia, Box 3094, Duke University Medical Center, Durham, NC 27710, or at
[email protected].
The members of the study groups are listed in the Appendix.
Appendix
The members of the Neurologic Outcome Research Group and the Cardiothoracic Anesthesiology Research Endeavors Investigators of the Duke Heart Center were as follows: Director: M. Newman; Codirector: J. Blumenthal; Anesthesiology: F. Clements, N. de Bruijn, K. Grichnik, H. Grocott, S. Hill, A. Hilton, J. Mathew, J. Reves, D. Schwinn, M. Stafford Smith, A. Grigore, M. Gamoso, G. Mackensen, R. Panten, T. Stanley, L. Ti, J. Kirchner, A. Butler, V. Gaver, W. Cohen, B. Funk, M. Tirronen, W. White, and B. Phillips-Bute; Behavioral Medicine: J. Blumenthal, M. Babyak, and P. Khatri; Neurology: C. Graffagnino, D. Laskowitz, A. Saunders, and W. Strittmatter; Surgery: R. Anderson, T. D'Amico, R. Davis, D. Glower, R. Harpole, J. Jaggers, R. Jones, K. Landolfo, C. Milano, P. Smith, and W. Wolfe; Cardiology: D. Mark, E. Peterson, M. Sketch, and R. Califf.
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If anyone finds more information on this topic, please post it or forward a copy to me please.
Rob