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  • Title: The predictive role of delayed cutaneous hypersensitivity testing in postoperative complications.
    Author: Schackert HK, Betzler M, Zimmermann GF, Decker R, Geelhaar GH, Edler L, Hess C, Herfarth C.
    Journal: Surg Gynecol Obstet; 1986 Jun; 162(6):563-8. PubMed ID: 3715689.
    Abstract:
    Ten parameters, including delayed cutaneous hypersensitivity testing (DCH), were evaluated with regard to their predictive value in instances of postoperative septic complications. In 302 patients undergoing surgical treatment, 45 complications, including wound infection, abscess, pneumonia and sepsis, were seen postoperatively in 42 patients. When these patients were compared with 260 patients without complications, hemoglobin, leukocyte count, serum albumin, total protein, blood sedimentation rate, age and sex were found not to contribute to the prediction of postoperative complications. In DCH testing, the complication rate increased from 7.5 per cent in normergic patients to 20.6 per cent in anergic patients. With increasing length and severity of operation, the complication rate increased from 6.5 to 26.4 per cent and from 6.5 to 31.8 per cent, respectively. Only in severe, long lasting operations could DCH testing differentiate the complication risk. Normergic patients had a 8.6 per cent complication rate; hypoergic patients, 36.6 per cent, and anergic patients, 37.5 per cent. The results of DCH testing did not correlate with the complication rate in any of the other operative groups. In conclusion, the predictive value of DCH testing is clearly greater in groups of patients highly affected by the operative trauma. The results of this study show that it is important to consider both host defense mechanisms and environmental factors in the assessment of operative risks.
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