Response to thyrotrophin-releasing hormone in atrial dysrhythmias.

Response to thyrotrophin-releasing hormone in atrial dysrhythmias.

Seventy-eight clinically euthyroid patients with atrial dysrhythmias, either established or paroxysmal, and sixty-three patients in sinus rhythm with coronary disease were screened for hyperthyroidism using thyroid function tests including the thyroid-stimulating hormone (TSH) response to thyrotrophin-releasing hormone (TRH). All had normal levels of serum thyroxine (T4) apart from three with d...

Prolactin and thyrotrophin response to thyrotrophin-releasing hormone in growth hormone deficiency.

Basal and thyroid-releasing hormone-stimulated (200 micrograms/m2) prolactin and thyroid-stimulating hormone (TSH) levels were measured in 31 patients with hypopituitarism (13 isolated growth-hormone deficiencies and 18 multiple pituitary hormone deficiencies). The results were compared with the prolactin response in 76 healthy prepubertal children. Normal prolactin concentrations were found in...

Growth hormone, prolactin and thyrotrophin responses to thyrotrophin-releasing hormone in diabetic patients.

Growth hormone (GH), prolactin (PRL) and thyrotrophin (TSH) responses to thyrotrophin-releasing hormone (TRH) were studied in 15 insulin-dependent diabetic patients. Basal plasma GH levels were raised above 5 mu./l in 6 patients and following the injection of TRH there was a significant rise in plasma GH levels in 9. The mean rise in plasma GH from basal to peak values was significant in the gr...

Thyrotrophin-releasing hormone in clinical practice.

Normal thyrotrophin response to intravenous thyrotrophin releasing hormone administration: the best index of optimal L-thyroxine therapy in primary hypothyroidism.

Normalization of basal thyrotrophin (TSH) level is used as the endpoint in L-thyroxine (L-T4) therapy of primary hypothyroidism. However, several reports have questioned the reliability of this index because of seasonal variation of TSH. Therefore, we studied 85 consecutive patients with primary hypothyroidism over a period of 3.5 y. In these patients, TSH response (delta TSH) to intravenous th...