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The Journal of Thoracic and Cardiovascular Surgery, Vol 85, 752-757, Copyright © 1983 by The American Association for Thoracic Surgery and The Western Thoracic Surgical Association

ARTICLES

Should nutritional status be assessed routinely prior to cardiac operation?

RM Abel, D Fisch, J Horowitz, HM van Gelder and ML Grossman

One hundred consecutive adult patients undergoing cardiac operations at a single institution were evaluated preoperatively with regard to their nutritional status. Anthropometric, biochemical, and immunologic characteristics were evaluated in addition to cardiac biopsy specimens to determine right atrial glycogen concentration. Although some positive anthropometric, biochemical, and cell-mediated immunity characteristics were observed to have "statistically significant" correlations with morbidity and mortality for the group as a whole, nearly all of the values remained near or at normal limits. Lighter weight men with a smaller arm muscle circumference and lower concentration of total body fat had more complications than their heavier counterparts. Serum transferrin and cell-mediated immunity also formed weakly positive statistical correlations. Anthropometric correlations in women were of no value. Myocardial glycogen concentrations did not correlate with postoperative morbidity and mortality. Because nearly all of the patients had arteriosclerotic heart disease, the series as a whole may have been skewed toward a group with values too close to normal to differentiate them adequately. It is concluded that routine nutritional assessment is of no value in guiding nutritional management for individual patients, although when patients are analyzed as a group, interesting epidemiologic observations can be made.

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