Detection of Heart Sounds in Children with and without Pulmonary Arterial Hypertension―Daubechies Wavelets Approach

Detection of Heart Sounds in Children with and without Pulmonary Arterial Hypertension―Daubechies Wavelets Approach

BACKGROUND Automatic detection of the 1st (S1) and 2nd (S2) heart sounds is difficult, and existing algorithms are imprecise. We sought to develop a wavelet-based algorithm for the detection of S1 and S2 in children with and without pulmonary arterial hypertension (PAH). METHOD Heart sounds were recorded at the second left intercostal space and the cardiac apex with a digital stethoscope simu...

Spectral analysis of the heart sounds in children with and without pulmonary artery hypertension.

BACKGROUND Pulmonary artery hypertension (PAH) is difficult to recognize clinically. Digital stethoscopes offer an opportunity to re-evaluate the diagnosis of PAH. We hypothesized that spectral analysis of heart sound frequencies using recordings from a digital stethoscope would differ between children with and without PAH. METHODS We recorded heart sounds using a digital stethoscope from 27 ...

The Prevalence of Celiac Disease in Down syndrome Children with and without Congenital Heart Defects

Background The prevalence of celiac disease (CD) is remarkably varied in Down syndrome(DS)patientscompared with other diseases.  This study aimed to assess celiac disease prevalence in Down syndrome children with and without congenital heart defects (CHD) and its comparison with controls. Materials and Methods This case-control study was performed at a single center on 132 participants in three...

norms and ideology in translation of children literature in persian context

اهداف عمده ی این مطالعه دو دسته هستند:1) تعیین هنجار های اجتماعی فرهنگی مورد استفاده در ترجمه ی کتاب کودک برای کودکان ایرانی 2) بررسی مفهوم کودک در ایران و ائدئولوژی این جامعه در رابطه با کودک که مترجم را مجبور به بازسازی کتابهای داستان برای کودکان ایرانی میکند. به این منظور, ابتدا ,مجموعه ای از 30 کتاب داستان و ترجمه های فارسی انها بر اساس مدلlambert and van gorp(2006)مقایسه شد و سپس استراتژیه...

Pulmonary arterial hypertension in children with congenital heart disease