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Öğe COMPARISON OF CARDIAC ARRHYTHMIA TYPES BETWEEN HYPERTHYROID PATIENTS WITH GRAVES' DISEASE AND TOXIC NODULAR GOITER(Editura Acad Romane, 2018) Turan, E.; Can, I.; Turan, Y.; Uyar, M.; Cakir, M.Purpose. Previous studies have demonstrated the relationship between hyperthyroidism and increased risk of cardiac arrhythmias. The most common causes of hyperthyroidism are Graves' disease (GD) and toxic nodular goiter (TNG). The aim of our study was to demonstrate if the underlying mechanism of hyperthyroidism, in other words autoimmunity, has an impact on the type of cardiac arrhythmias accompanying hyperthyroidism. Method. Twenty patients with TNG and 16 patients with GD who had overt hyperthyroidism were included in the study. Age, sex, thyroid hormone levels, thyroid autoantibody positivity, thyroid ultrasonography and scintigraphy results were recorded. 24-hour Holter ECG monitoring was performed in all patients. Results. Mean age was significantly higher in the TNG group compared to the GD group (62.9 +/- 11.5 vs. 48.9 +/- 8.6 years, p=0.001). Free T3 was significantly higher (7.87 +/- 3.90 vs. 5.21 +/- 1.53 pg/mL, p=0.033) in the GD group while free T4 and TSH levels were similar between the two groups. In 24-hour Holter ECG recordings nonsustained ventricular tachycardia (VT) rates were significantly higher in the GD group than in TNG group [18.75% (n=3/16) vs. 0% (n=0/20), respectively, (p=0.043)] Paroxysmal atrial fibrillation (AF) rates were significantly higher in the TNG group compared to GD group [(30% (n=6/20) vs. 0% (n=0/16), respectively, (p=0.016)]. Conclusion. Although free T3 levels were lower, paroxysmal AF rates were found significantly higher in the TNG group which may be associated with significantly higher age of this group. On the other hand, higher rate of nonsustained VT in the GD group may be related to either significantly higher free T3 levels or autoimmunity.Öğe PLATYPNEA ORTHODEOXIA SYNDROME FOLLOWING PULMONARY VEIN ISOLATION(Elsevier Ireland Ltd, 2013) Dogan, U.; Can, I.; Kayrak, M.; Kabul, H. K.; Gormus, N.; Kose, S.[Abstract Not Availabe]
