Chapter 19: Nursing Care of the Child With an Alteration in Perfusion/Cardiovascular Disorder

A foundational understanding of the developmental shift from fetal circulation, where structures like the foramen ovale and ductus arteriosus maintain oxygenation via the placenta, to independent, closed circulation after birth is crucial. The structural and functional differences in the pediatric heart, such as its horizontal position in infancy and reliance on serum calcium for contraction, dictate unique nursing approaches. CHD defects are categorized based on their hemodynamic effects: decreased pulmonary blood flow (e.g., Tetralogy of Fallot, Tricuspid Atresia), increased pulmonary blood flow (e.g., VSD, PDA, ASD), obstructive disorders (e.g., Coarctation of the Aorta, Aortic Stenosis), and mixed defects (e.g., Hypoplastic Left Heart Syndrome, Transposition of the Great Vessels). Key nursing assessments involve identifying signs of altered perfusion and heart failure, such as cyanosis (which may suggest severe CHD if oxygen doesn't help), chronic hypoxia (indicated by clubbing), pulse discrepancies (suggesting coarctation), and growth delays. Diagnostic tools like echocardiography, ECG, and the highly invasive cardiac catheterization are detailed, alongside essential pre- and post-procedure nursing management focusing on monitoring for bleeding, arrhythmias, and distal circulation. Acquired disorders covered include Heart Failure (the most common acquired condition in this population), Infective Endocarditis, Cardiomyopathy, Acute Rheumatic Fever (a sequela of streptococcal infection), and Kawasaki Disease, the leading cause of acquired heart disease due to its risk of coronary artery aneurysm. Nursing interventions span optimizing oxygenation, promoting high-calorie nutrition to address increased metabolic demands, managing fluid balance with diuretics/restrictions, and providing intensive psychosocial support for the child and family navigating chronic illness and complex surgical interventions, including heart transplantation.