Journal
WORLD JOURNAL OF SURGERY
Volume 28, Issue 1, Pages 100-107Publisher
SPRINGER
DOI: 10.1007/s00268-003-6991-y
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There is a considerable discrepancy in the literature concerning the sensitivity of parathyroid scintigraphy (PS) with Tc-99m-MIBI. We therefore analyzed our own data and compared them to the literature in a metaanalysis. All patients who received Tc-99m-MIBI scintigraphy and subsequent surgery in our department for the detection of enlarged parathyroid glands in primary (pHPT) or secondary (sHPT) hyperparathyroidism between 1991 and 1999 were included in our retrospective analysis. The results of surgery served as the gold standard. For a true positive result, the scintigraphy had to predict the exact location of parathyroid adenoma (PA) or parathyroid hyperplasia (PH). We then compared these data to the results of a nonstatistical systematic metaanalysis of the literature. Patients (178) underwent PS between 1991 and 1999; 139 were operated on and included in this study. Of these, 109 had pHPT and 30 had sHPT. The sensitivity and specificity of the PS were found to be 45%/94% for pHPT and 39%/40% for sHPT. Fifty-two studies concerning PS were included in the metaanalysis, Sensitivities reported varied from 39% to >90%. Consideration of the different possible techniques used for PS could not explain these discrepancies, Our data show that the sensitivity of PS in clinical routine may be lower than expected from the literature. Our data are consistent with other studies and with partially unpublished clinical observations from other university hospitals. We believe that a well-designed and property conducted prospective study is necessary to evaluate the reasons for the differences observed.
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