CORRELATION BETWEEN CARDIAC FIBRILLATION AND THEROID STATUS

Rakhmatullov Fagim Kasymovich, Doctor of medical sciences, professor, head of sub-department of internal diseases, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), pgu-vb2004@mail.ru
Moiseeva Inessa Yakovlevna, Doctor of medical sciences, professor, head of sub-department of general and clinical pharmacology, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), moiseeva_pharm@ mail.ru
Rakhmatullov Artur Fagimovich, Head of cardiological division, Municipal Hospital №3 of the Moscow City Healthcare Department (building, 2 Kashtanovaya alley, Moscow, Russia), pgu-vb2004@mail.ru
Burmistrova Larisa Fedorovna, Candidate of medical sciences, associate professor, sub-department of internal diseases, Medical Institute, Penza State University (40 Krasnaya street, Penza, Russia), pgu-vb2004@mail.ru

616.12-008.318+616.441

10.21685/2072-3032-2016-3-10

Background. The analysis of cardiac electrophysiological (EPH) features and thyroid’s structural and functional conditions in patients with atrial fibrillation (AF) helps determine cardiac and thyroid predictors of arrhythmia. The paper aims at studying the correlation between cardiac EPH features and thyroid’s structural and functiona; conditions in patients with asymptomatic and symptomatic AF.
Materials and methods. The authors examined 34 patients with asymptomatic atrial fibrillation paroxysms (AFP) and 32 patients with symptomatic AFP. The ex-amination included a cardiac electrophysiology study, a thyroid ultrasound examination and an evaluation of thyroid hormone levels.
Results. The researchers have revealed that patients with asymptomatic AF have a decreased heart rate and a shorter effective refractory period of the left atrium (ERPLA) when thyroid hormone levels tend to be within a low reference range. Patients with symptomatic AF have an increased heart rate and a shorter ERPLA when thyroid hormone levels tend to be within a high reference range.
Conclusions. Cardiac predictors of arrhythmia in patients with AF are heart rate and ERPLA, whereas thyroid predictors are thyroid hormone levels.

atrial fibrillation, thyroid status.

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