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The Egyptian Journal of Internal Medicine
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Reversible cause of complete heart block: an unusual presentation of thyrotoxicosis

The Egyptian Journal of Internal Medicine volume 28, pages 28–29 (2016)Cite this article

Abstract

Thyrotoxicosis is a clinical entity that is often very difficult to diagnose without biochemical confirmation, as its clinical features can be highly varied. It is more common in women, with a female to male ratio of up to 5 : 1 between the ages of 20 and 40. Thyroid hormone is important at a cellular level, affecting nearly every type of tissue in the body. Very rarely it can cause heart blocks. We report a case of complete heart block associated with thyrotoxicosis that reverted to sinus rhythm with medical management alone.

References

  1. Rives JD, Shepard RM. Thyroid crisis Am Surg 1951; 17: 406–418.

    CAS  Google Scholar 

  2. Valcavi R, Menozzi C, Roti E, Zini M, Lolli G, Roti S, et al. Sinus node function in hyperthyroid patients. J Clin Endocrinol Metab 1992; 75: 239–242.

    CAS  PubMed  Google Scholar 

  3. Kramer MR, Shilo S, Hershko C. Atrioventricular and sinoatrial block in thyrotoxic crisis. Br Heart J 1985; 54: 600–602.

    Article  CAS  Google Scholar 

  4. Miller RH, Corcoran FH, Baker WP. Second and third degree atrioventricular block with Graves’ disease: a case report and review of the literature. Pacing Clin Electrophysiol 1980; 3: 702–711.

    Article  CAS  Google Scholar 

  5. Topaloglu S, Topaloglu OY, Ozdemir O, Soylu M, Demir AD, Korkmaz S. Hyperthyroidism and complete atrioventricular block – a report of 2 cases with electrophysiologic assessment. Angiology 2005; 56: 217–220.

    Article  Google Scholar 

  6. Ortmann C, Pfeiffer H, Du Chesne A, Brinkmann B. Inflammation of the cardiac conduction system in a case of hyperthyroidism. Int J Legal Med 1999; 112: 271–274.

    Article  CAS  Google Scholar 

  7. Shirani J, Barron MM, Pierre-Louis ML, Roberts WC. Congestive heart failure, dilated cardiac ventricles, and sudden death in hyperthyroidism. Am J Cardiol 1993; 72: 365–368.

    Article  CAS  Google Scholar 

  8. Osman F, Ayuk J, Dale J, Franklyn JA, Gammage MD. Thyrotoxicosis with heart block. J R Soc Med 2001; 94: 346–348.

    Article  CAS  Google Scholar 

  9. Martí V, Ballester M, Obrador D, Moya C, Carrio I, Pons-Lladó G. Active myocardial damage in hyperthyroidism. A concurrent mechanism of heart failure reversed by treatment. Eur Heart J 1995; 16: 1014–1016.

    PubMed  Google Scholar 

Download references

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Authors and Affiliations

  1. PSG Institute of Medical Sciences & Research, 641 004, Peelamedu, Coimbatore, Tamilnadu, India

    Nattusamy Loganathan MD, DM,, Somasundaram Maheswari, Kalliappan Tamilarasu & Gopalan Rajendiran

Authors
  1. Nattusamy Loganathan MD, DM,
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  2. Somasundaram Maheswari
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  3. Kalliappan Tamilarasu
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  4. Gopalan Rajendiran
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Corresponding author

Correspondence to Nattusamy Loganathan MD, DM,.

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Loganathan, N., Maheswari, S., Tamilarasu, K. et al. Reversible cause of complete heart block: an unusual presentation of thyrotoxicosis. Egypt J Intern Med 28, 28–29 (2016). https://doi.org/10.4103/1110-7782.182963

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  • DOI: https://doi.org/10.4103/1110-7782.182963

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