Acquired long QT syndrome caused by pseudohypoparathyroidism

L. A. Balykova; Балыкова Л. А.; E. S. Samoshkina; Самошкина Е. С.; Yu. A. Petrushkina; Петрушкина Ю. А.; T. M. Zolnikova; Зольникова Т. М.; A. V. Krasnopolskaya; Краснопольская А. В.; S. I. Blohina; Блохина С. И.

doi:10.35693/2500-1388-2020-5-4-235-238

Acquired long QT syndrome caused by pseudohypoparathyroidism

Authors: Balykova L.A.¹, Samoshkina E.S.¹, Petrushkina Y.A.², Zolnikova T.M.¹, Krasnopolskaya A.V.¹, Blohina S.I.¹
Affiliations:
1. Ogarev Mordovia State University
2. Mordovia Republican Children’s Clinical Hospital
Issue: Vol 5, No 4 (2020)
Pages: 235-238
Section: Cardiology
URL: https://ogarev-online.ru/2500-1388/article/view/53016
DOI: https://doi.org/10.35693/2500-1388-2020-5-4-235-238
ID: 53016

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Abstract

The article presents a review of literature data on the long QT syndrome (LQTS), focusing on the role of secondary factors in the development of this disorder. In particular, it describes in detail pseudohypoparathyroidism – a rare genetically and clinically heterogeneous condition characterized by resistance to parathyroid hormone, often manifested by arrhythmogenic syncope and seizures. A specific clinical case illustrates the necessity to exclude the endocrine and electrolyte abnormalities in syncopal conditions associated with the QT interval prolongation.