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Biomedical subjects

E Bruun

Publications and source records attributed to E Bruun.

47 records · Page 3Linked to original sources
PubMed1975

Arteriographic exposition of the parathyroids.

Arteriographic exposition of the parathyroids in 52 patients consecutively referred for primary hyperparthyroidism is reported. Thirty-nine patients under-went neck exploration. In 29 patients pathologic parathyroids were found. The arteriographic evaluation was based on observation of the course of the inferior thyroid artery and the presence of parenchymal opacification. Comparison of arteriography and surgical findings revealed that selective angiograpy of the inferior thyroid artery had a high sensitivity and specificity in the detection of pathologic parathyroids far exceeding that of a non-selective technique.

Adult↗
PubMedDate not supplied

Clinical applicability of an amino-terminal radioimmunoassay for determination of parathyroid hormone.

With a radioimmunoassay using hPTH 1-34 for antibody production, for radioiodination and as a standard, hPTH 1-34 was detectable (detection limit 40 pg/ml) preoperatively in peripheral blood in 14 of 29 patients with hyperparathyroidism, but in no controls. In all patients with parathyroid adenoma and detectable hPTH 1-34 preoperatively, the values fell after parathyroid surgery. Contrastingly, three of four patients with diffuse parathyroid hyperplasia and two of three with normal parathyroid glands showed a rise in hPTH 1-34 postoperatively, which was concomitant with very low serum calcium levels. In studies of hPTH 1-34 in central venous blood (3 patients), levels were detectable in all samples, but not in simultaneously drawn peripheral blood. Values for hPTh 1-34 in central blood correlated to PTH determined from a bovine assay, but the peripheral samples showed no correlation. The low levels of circulating N-terminal immunoreactivity in peripheral blood make this assay inapplicable for routine diagnostic purposes. These low levels are due not only to low secretion rates, but also to rapid peripheral metabolization.

Adolescent↗