ISSN 2149-2263 | E-ISSN 2149-2271
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Relationship of QT dispersion with sex hormones and insulin in young women with polycystic ovary syndrome: an observational study [Anatol J Cardiol]
Anatol J Cardiol. 2013; 13(8): 772-777 | DOI: 10.5152/akd.2013.264

Relationship of QT dispersion with sex hormones and insulin in young women with polycystic ovary syndrome: an observational study

Emine Gazi1, Meryem Gencer2, Volkan Hancı3, Ahmet Temiz1, Burak Altun1, Ayşe Nur Çakır Güngör2, Ufuk Öztürk1, Bahadır Kırılmaz1
1Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
2Department of Gynecology and Obstetrics, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
3Department of Anesthesiology and Reanimation, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
4Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
5Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
6Department of Gynecology and Obstetrics, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
7Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey
8Department of Cardiology, Faculty of Medicine, Çanakkale Onsekiz Mart University, Çanakkale-Turkey

Objective: Polycystic ovary syndrome (PCOS) is a common endocrinopathy in reproductive women. Cardiovascular disease risk factors are more frequent in this population. We aimed in this study to investigate presence of QT dispersion and effects of sex hormones and insulin on QT duration in young PCOS patients. Methods: This present study was cross-sectional observational study. A total of 47 women, 25 patients with PCOS and 22 healthy, were included. Serum testosterone, estradiol and insulin levels were studied and electrocardiography was performed at 2nd or 3th days of menstrual cycle. The study population was divided into groups according to serum testosterone and estradiol levels. Sub-groups and pairwise groups were compared by Mann-Whitney U or student t-test. The associations of QTc durations with hormone levels were calculated using Spearman rank correlation analysis. The results were evaluated at the p<0.05 significance level. Results: No differences found between groups regarding to demographic parameters. Estradiol and testosterone levels were higher in patients with PCOS (41.12±13.59 vs. 35.57±19.29 pg/mL, p=0.09 and 105±58.5 vs. 17.6±10.9 ng/dL, p=0.01, respectively). QT dispersion was significantly longer in PCOS patients (47.1 vs. 32.7 ms, p=0.01). A positive correlation was found between the serum insulin level and QTc min, QTc max, and QTc mean (r=0.402, p=0.011; r=0.341, p=0.033; r=0.337, p=0.036; respectively). QT dispersion with serum testosterone and estradiol levels were positively correlated (r=0.525, p=0.001and r=0.326, p= 0.046; respectively). Conclusion: Our results suggest that QT dispersion is prolonged and testosterone, estradiol and insulin are associated with QT duration in young PCOS patients.

Keywords: Electrocardiography, QT dispersion, polycystic ovary syndrome, insulin resistance, insulin

Emine Gazi, Meryem Gencer, Volkan Hancı, Ahmet Temiz, Burak Altun, Ayşe Nur Çakır Güngör, Ufuk Öztürk, Bahadır Kırılmaz. Relationship of QT dispersion with sex hormones and insulin in young women with polycystic ovary syndrome: an observational study. Anatol J Cardiol. 2013; 13(8): 772-777
Manuscript Language: English


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