Electrocardiographic changes in hyperparathyroidism

Acute Hyperparathyroidism with Electrocardiographic Changes

“…Other electrocardiographic changes in cases of hypercalcaemia due to hyperparathyroidism include lengthening of the P-R interval, inversion of the T waves in leads 2 and 3, a slurred rSR in VI and a peculiar broad rounded apex of the T wave rather similar to the appearances described by us ( Fig. 1) (Kellogg and Kerr, 1936;Lepeschin, 1951;Goldberger, 1953). The present case showed no,&hanges in the A-V conduction and no broadening of the QRS complex.…”

“…The electrocardiographic findings have rarely been recorded (Ballin, 1932; Kellogg and Kerr, 1936). In our patient the electrocardiographic changes, together with the clinical presentation, led to the correct diagnosis.…”

“…He remarked that the electrocardiogram was a possible clinical method for measuring the muscular hypotonia. Kellogg and Kerr (1936) described the electrocardiographic changes in osteitis fibrosa cystica and showed that the QTc interval increased in both their cases after operation. In the one case the serum calcium was 19.2 mg. per 100 ml., and in the other 17.5 mg. before operation.…”

The Effect of Potassium and Calcium on the Electrocardiogram

“…Similar changes, with the addition of shortened QT interval were recorded in two patients with hyperparathyroidism, when the serum calcium level was 9 meq./l. (Kellogg and Kerr, 1936). Hypocalcaemia i Depression of the serum calcium follows removal or injury to the parathyroid glands, an infrequent complication of partial thyroidectomy.…”