Atrioventricular Conduction Disturbances in Hyperthyroidism

Authors

  • Skevos Sideris Ippokratio Hospital, Athens
  • Georgios Benetos Ippokratio Hospital, Athens
  • Konstantinos Gatzoulis Ippokratio Hospital, Athens
  • Ioannis Kallikazaros Ippokratio Hospital, Athens

DOI:

https://doi.org/10.2015/hc.v9i4.609

Keywords:

complete heart block, hyperthyroidism

Abstract

A 73-year-old man was referred from another hospital to our department for permanent pacemaker implantation due to persistent (more than 3 days) complete atrioventricular (AV) block. His past medical history included history of hyperthyroidism under treatment with carbimazol 2.5 mg once daily. On admission, serum thyroxin stimulating hormone concentration was <0.01 μIU/ml (normal 0.35-4.95 μIU/ml). Antithyroid drug treatment was intensified. Five days after admission complete heart block persisted on ECG, but 1 week later the ECG revealed a junctional rhythm, which resolved to first degree AV block on the tenth day of hospitalization and the patient was discharged. Subsequent follow up at 3 months after discharge with 24-hour holter recording, revealed normal sinus rhythm without any conduction disturbances.

Author Biographies

Skevos Sideris, Ippokratio Hospital, Athens

Specialty: Cardiology

Georgios Benetos, Ippokratio Hospital, Athens

Konstantinos Gatzoulis, Ippokratio Hospital, Athens

Ioannis Kallikazaros, Ippokratio Hospital, Athens

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Published

2014-10-01

Issue

Vol. 9 No. 4 (2014)

Section

CASE REPORTS

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