RT Journal Article SR Electronic T1 The impact of obstructive sleep apnea syndrome on cardiovascular system in children JF European Respiratory Journal JO Eur Respir J FD European Respiratory Society SP p1751 VO 38 IS Suppl 55 A1 Labrini Damianidou A1 Maria Eboriadou A1 Andreas Giannopoulos A1 Katerina Haidopoulou A1 Irini Tzimou A1 Ioannis Tsanakas A1 Fani Athanasiadou YR 2011 UL http://erj.ersjournals.com/content/38/Suppl_55/p1751.abstract AB Introduction: Obstructive Sleep Apnea Syndrome (OSAS) has been shown to be an independent risk factor for cardiovascular disease in adults. However, few data are known about the effect of OSAS on cardiovascular system in children.Aims: To investigate clinical and laboratory parameters associated with cardiovascular disease in children with OSAS.Methods: Seventeen subjects, aged 5 to 12 years (mean age 9,24±2,19 years), referring for evaluation of systematic snoring (≥4 nights/week), underwent overnight polysomnography,evaluation of blood pressure, lipidaemic profile and complete echocardiographic assessment. According to the Apnea Hypopnea Index (AHI) subjects were divided into three groups: A. primary snoring (AHI<1, n=1), B. mild OSAS (AHI= 1-5, n=12), C. moderate-severe OSAS (AHI >5, n=4).Results: There were no significantly differences in age, sex, heart rate, systolic and diastolic blood pressure and lipidaemic profile among the groups (p≥0.05).Right ventricular dimension (Right Ventricular end-Diastolic dimension -RVDd) and left ventricular dimensions (Left Ventricular end-Diastolic dimension – LVDd, Left Ventricular diastolic mass – LVdmass, Left Ventricular Posterior Wall diastolic –LVPWd, IntraVenticular Septum diastolic – IVSd)), were not statistically significant different between the three groups and were within normal limits. RVDd was higher in OSAS patients (p=0,096) than in controls.Conclusion: The present study suggests that young patients with systematic snoring have no echocardiographic evidences of cardiac dysfunction. Nevertheless, there is a correlation of increased right ventricular dimension, although not statistically significant, in patients with OSAS.