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Horm Metab Res 1972; 4(5): 371-373
DOI: 10.1055/s-0028-1094035
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© Georg Thieme Verlag KG Stuttgart · New York

The Diagnosis Utility of the QKd Interval in Thyroid Disease

J.  Skibinsky , V.  Goldberg , R.  Sirito , A. J. Demartini , H.  Parisier , M. A. Sciegata
  • Hospital Ramos Mejia, Buenos Aires, Argentina
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Publication History

Publication Date:
07 January 2009 (online)

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Abstract

Determination of the QK time interval between the onset of myocardial depolarization (Q) and the arrival of the arterial pressure wave at the brachial artery as indicated by the immediately following Korotkoff (K) sound has been used to examine thyroid function.

The QK at diastolic cuff pressure in 19 normal subjects, nine patients with anxiety neurosis, and in 25 patients who had been successfully treated for hyperthyroidism averaged 0.21 ± 0.01 sec.

In 34 hyperthyroid patients diagnosed clinically and by radioactive iodine studies the diastolic QK interval was significantly shorter.

The results show that the QK interval offers a simple, easily repeated clinical test of thyroid hyperactivity.

Key words

Thyroid Function - Hyperthyroidism - QK-Interval