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    Evaluation of the Early Effects of Childhood Asthma and Its Treatment on Cardiac Function as Revealed by Two-Dimensional Speckle-Tracking Echocardiography
    (Springer, 2022) Özde, Şükriye; Kayapınar, Osman; Doğru, Mahmut; Aktüre, Gülşah; Kaya, Adnan; Coşkun, Gökhan; Keskin, Muhammed
    There is minimal information available regarding the early effects of bronchial asthma (BA) and its treatment on cardiac function in children. We used two-dimensional speckle-tracking echocardiography (2D-STE) to evaluate cardiac function before and after the treatment of childhood BA. We enrolled 44 children with moderate and severe BA who had not been treated over the preceding 3 months or who were newly diagnosed. All children received the same treatment (that recommended by the Global Initiative for Asthma [GINA] in 2017). All children also underwent transthoracic 2D-STE before treatment and 6 months later. Clinical data were compared before and after treatment. After treatment, significant increases were evident in right ventricular (RV) systolic and diastolic strain, as well as the systolic strain rate. Before and after treatment, the RV global longitudinal systolic strains were - 22.8 +/- 3.6 and - 25.1 +/- 4.5, respectively (p = 0.036); the RV global longitudinal diastolic strains were - 18.5 +/- 6.0 and - 21.5 +/- 5.2, respectively (p = 0.038); and the RV systolic strain rates were - 1.26 +/- 0.4 and - 1.12 +/- 0.3, respectively (p = 0.025). After treatment, significant increases were observed in the right atrial (RA) peak longitudinal strain and strain rate. Before and after treatment, the RA peak atrial longitudinal strains were 32.5 +/- 10.8 and 44.7 +/- 11.2, respectively (p = 0.042) and the RA longitudinal strain rates were - 1.6 +/- 0.3 and - 2.0 +/- 0.5, respectively (p = 0.041). RV and RA subclinical dysfunction may develop in children with early-stage BA. However, asthma treatment appears to improve such dysfunction. In children with BA, clinical and subclinical changes in cardiac functions can be easily detected via 2D-STE.
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    Oxidative stress in maternal milk and cord blood in gestational diabetes mellitus: a prospective study
    (Associacao Paulista Medicina, 2022) Erdoğan, Fırat; Senkal, Evrim; Özer, Ömer Faruk; Ipek, Ilke Ozahi; Altuntas, Sukriye Leyla; Özde, Şükriye
    BACKGROUND: Reduced antioxidant defenses may reflect a poor protective response against oxidative stress and this may be implicated in progression of gestational diabetes mellitus (GDM). Oxidative stress induced by hyperglycemia plays a major role in micro and macrovascular complications, which imply endothelial dysfunction. OBJECTIVE: Our aim in this study was to investigate the association between GDM and oxidative stress markers measured in plasma, with regard to revealing changes to total antioxidant capacity (TAC) and total oxidant status (TOS) among mothers showing impairments in oral glucose tolerance tests (OGTTs). DESIGN AND SETTING: Prospective study at a university hospital in Turkey. METHODS: The study group consisted of 50 mothers with GDM, and 59 healthy mothers served as controls. Umbilical cord blood samples were taken from all mothers during delivery and breast milk samples on the fifth day after delivery. TAC, TOS, thiol and disulfide levels were measured. RESULTS: No statistically significant relationship between the blood and milk samples could be found. An analysis on correlations between TAC, TOS and certain parameters revealed that there were negative correlations between TOS and total thiol (r = -0.386; P < 0.001) and between TOS and disulfide (r = -0.388; P < 0.001) in milk in the control group. However, these findings were not observed in the study group. CONCLUSION: Our findings suggested that a compensatory mechanism of oxidative stress was expected to be present in gestational diabetes mellitus and that this might be ameliorated through good glycemic regulation and antioxidant supplementation.
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    Subclinical right ventricular dysfunction in intermittent and persistent mildly asthmatic children on tissue Doppler echocardiography and serum NT-proBNP: Observational study
    (Wiley, 2018) Özde, Cem; Doğru, Mahmut; Özde, Şükriye; Kayapınar, Osman; Kaya, Adnan; Korkmaz, Ahmet
    Background Bronchial asthma may lead to pulmonary hypertension, right ventricular (RV) dysfunction, and cor pulmonale due to elevated afterload on the RV later in life. The aim of this study was to determine whether serum N-terminal pro-B-type natriuretic peptide (NT-proBNP) might serve as a biomarker for detecting subclinical RV dysfunction using echocardiography during the early stages of bronchial asthma. Methods Sixty-eight pediatric patients with asthma (asthma group) and 69 age- and sex-matched healthy children (control group) were enrolled. The study was conducted in a tertiary woman and child diseases education and research hospital from January 2013 to December 2013. RV function (2-D and tissue-Doppler echocardiography), pulmonary function (spirometry) and serum NT-proBNP concentration were evaluated. Results Mean age was 10.5 +/- 2.8 years in the asthma group and 10.2 +/- 2.7 years in the control group (P = 0.522). RV diastolic function was significantly decreased in the asthma group (ratio of tricuspid lateral annular early diastolic peak velocity to tricuspid lateral annular late diastolic peak velocity [E '/A '], 1.29 +/- 0.68 vs 1.74 +/- 0.89, P = 0.001). RV myocardial performance index was significantly higher in the asthma group than in the control group (0.28 +/- 0.06 vs 0.24 +/- 0.07, respectively; P = 0.003). Finally, serum NT-proBNP concentration was significantly higher in the asthma group than in the control group (292.3 +/- 142.2 pg/mL vs 208.2 +/- 70.1 pg/mL, respectively; P = 0.003). Conclusion Increased serum NT-proBNP is associated with subclinical RV dysfunction in asthmatic children. RV function is significantly affected in children with bronchial asthma.