Subclinical left ventricular dysfunction in women with polycystic ovary syndrome: an observational study

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Erdogan, Ercan
Akkaya, Mehmet
Tasal, Abdurrahman
Turfan, Murat
Kul, Seref
Sonmez, Osman
Vatankulu, Mehmet Akif
Ertas, Gokhan
Batmaz, Gonca
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Objective: Cardiac involvement has been increasingly recognized in patients with polycystic ovary syndrome (PCOS). Identification of the earliest asymptomatic impairment of left ventricular (LV) performance may be important in preventing progression to overt heart failure. Our aim was to investigate LV function with different echocardiographic techniques in patients with PCOS. Methods: Thirty patients with PCOS and 30 age and body mass index matched healthy subjects were enrolled to this cross-sectional observational study. All subjects underwent echocardiography for assessment of resting LV function as well as two-dimensional speckle tracking echocardiography (2D-STE) and real-time three-dimensional echocardiography (3D-Echo). Global longitudinal strain (GLS) was calculated from 3 standard apical views using 2D-STE. Student t-test, Chi-square test, Pearson's, and Spearman's correlation analysis were used for statistical analysis. Results: The early mitral inflow deceleration time (DT), isovolumetric relaxation time (IVRT) and E/Em ratio were increased in the PCOS group (p<0.05 for all). Waist-to-hip ratio, fasting insulin, homeostasis model assessment of insulin resistance (HOMA-IR) and low-density lipoprotein (LDL) levels were higher in PCOS group (p<0.05 for all). Significant correlation was observed between DT, IVRT and insulin value, HOMA-IR (p<0.05 for all). On 3D-Echo evaluation, none of the patients in both groups had LV systolic dysfunction with comparable LV ejection fraction and LV volumes. 2D-STE showed that GLS was significantly reduced in the PCOS group compared to control group (-16.78 +/- 0.56% vs. -18.36 +/- 1.04%, p<0.001). The GLS was found to be negatively correlated with waist-to-hip ratio and LDL values (p<0.05 for all). Conclusion: These results indicate that PCOS may be related to impaired LV systolic function detected by 2D-STE. In addition, PCOS may lead to diastolic dysfunction. Reduced GLS might be an early indicator of cardiac involvement in this patient population.
left ventricular
Erdogan E., Akkaya M., BACAKSIZ A., Tasal A., Turfan M., Kul S., Sonmez O., Vatankulu M. A. , Ertas G., Batmaz G., et al., -Subclinical left ventricular dysfunction in women with polycystic ovary syndrome: an observational study-, ANATOLIAN JOURNAL OF CARDIOLOGY, cilt.13, ss.784-790, 2013
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