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Author: search.filters.author.Bal, UgurSubject: search.filters.subject.Echocardiography

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    Pulmonary Artery Distensibility is Worsened in Obstructive Sleep Apnea Syndrome
    (2019) Karacaglar, Emir; Bal, Ugur; Eroglu, Serpil; Colak, Ayse; Bozbas, Serife; Muderrisoglu, Hadun; 0000-0003-3055-7953; 31571799
    Background: Obstructive sleep apnea syndrome (OSAS) leads to right ventricular (RV) dysfunction and pulmonary hypertension (PH) in the later stages. Early determination of these conditions is very important. Objectives: We aimed to evaluate the correlations of pulmonary artery distensibility, right pulmonary artery fractional shortening (RPA-FS), and pulmonary artery stiffness (PAS) with PH among newly diagnosed OSAS patients. Methods: We prospectively evaluated 34 newly diagnosed OSAS patients and 28 controls. The study subgroups were determined according to the apnea-hypopnea index (AHI). All patients underwent a transthoracic echocardiographic examination. Conventional RV parameters, PAS, and RPA-FS parameters were measured. Results: RPA-FS was significantly lower in the OSAS group (p < 0.001) and positively correlated with tricuspid annular systolic excursion (TAPSE) (p = 0.047) and pulmonary acceleration time (PAT) (p = 0.006), and inversely correlated with systolic pulmonary artery pressure (sPAP) (p = 0.013), and PAS (p < 0.001). Consistent with this result, PAS was significantly worse in the patients with OSAS compared to the controls (27.1 +/- 3.5 to 15.8 +/- 2.7, p < 0.001), and inversely correlated with RPA-FS (p < 0.001), PAT (p = 0.001), and TAPSE (p = 0.035). PAS was positively correlated with sPAP (p = 0.001). There were statistically significant differences for both PAS and RPA-FS among the OSAS subgroups with regards to the severity of disease (p < 0.001). The correlation analyses showed a significantly positive correlation between RPA-FS and mean O2 saturation. RPA-FS was also inversely correlated with AHI. Similarly, PAS was positively correlated with AHI and arousal index. Conclusions: PAS and RPA-FS are worsened in patients with OSAS, and are correlated with PH and severity of OSAS.
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    Evaluation of Polycystic Ovary Syndrome Patients with Strain Echocardiography
    (2015) Aslan, Gamze; Aslan, Recep Cagdas; Sade, Leyla Elif; Bal, Ugur; Onalan, Gogsen; Zeyneloglu, Hulusi Bulent; Kuscu, Esra; Muderrisoglu, Haldun
    Objectives: Polycystic Ovary Syndrome (PCOS) is characterized by several metabolic abnormalities that may lead to insulin resistance, diabetes, and atherosclerosis which are associated with chronic inflammatory processes and oxidative stress. Due to this fact PCOS patients are at increased risk of cardiovascular diseases. We used echocardiographic quantification tools to detect subclinical changes in myocardial functions. Materials and Methods: Echocardiographic, hormonal and metabolic measurements were performed in twenty-six women with PCOS and twenty-three healthy volunteers. The age of the attendants ranged between 20 and 31 years. PCOS was diagnosed by using the Rotterdam criteria. We compared the myocardial functions of PCOS patients without any cardiovascular symptoms with healthy volunteers by using strain echocardiography. Results: No differences were found between the two groups' strain, strain rate and myocardial velocity measurements. Conclusion: According to our study PCOS patients without any clinical cardiovascular symptoms have no impairment in myocardial functions. These results should be further confirmed in larger controlled studies.