tailieunhanh - Ebook Pediatric cardiology - The essential pocket guide (3rd edition): Part 2

(BQ) Part 2 book "Pediatric cardiology - The essential pocket guide" presents the following contents: Congenital heart disease with a right-to-left shunt in children, unusual forms of congenital heart disease in children, unique cardiac conditions in newborn infants, the cardiac conditions acquired during childhood,. | Chapter 6 Congenital heart disease with a right-to-left shunt in children Admixture lesions 187 Complete transposition of the great arteries d-TGA or d-TGV 188 Total anomalous pulmonary venous connection TAPVC or TAPVR 196 Common arterial trunk truncus arteriosus 204 Cyanosis and diminished pulmonary blood flow 209 Tetralogy of Fallot 209 Tetralogy variants 219 Tricuspid atresia 219 Pulmonary atresia with intact ventricular septum 225 Ebstein s malformation of the tricuspid valve 228 In most patients with cyanosis related to congenital cardiac abnormalities an abnormality permits a portion of the systemic venous return to bypass the lungs and enter the systemic circulation directly. Therefore this creates a right-to-left shunt and results from two general types of cardiac malformations a admixture of the systemic and pulmonary venous returns or b a combination of an intracardiac defect and obstruction to pulmonary blood flow. The first group shows increased pulmonary vascularity but the second shows diminished pulmonary vascularity. Therefore the most common conditions resulting in cyanosis are divided between these two categories Table . Regardless of the type of cardiac malformation leading to cyanosis a risk of polycythemia clubbing slow growth and brain abscess exists. The first three findings related to tissue hypoxia have been discussed previously. Brain abscess results from the direct access of bacteria to the systemic circuit from the right-to-left shunt of venous blood. These cyanotic conditions usually present in the early neonatal period and need prompt recognition and management. Most can be palliated by prostaglandin Pediatric Cardiology The Essential Pocket Guide Third Edition. Walter H. Johnson Jr. and James H. Moller. 2014 John Wiley Sons Ltd. Published 2014 by John Wiley Sons Ltd. 186 6 Congenital heart disease with a right-to-left shunt in children 187 Table Physiologic Classification of Cyanotic Malformations. Admixture lesions increased

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