Subject(s)
Aortic Coarctation/surgery , Growth Disorders/etiology , Intestinal Absorption , Adolescent , Child , Child, Preschool , Female , Humans , MaleABSTRACT
The aim of the study was to ascertain whether the acceleration of physical development in children after surgery for ASD or VSD is due to improved intestinal absorption. There were 17 patients with ASD and 9 patients with VSD (aged 5-15 years) examined. Significantly increased values of the xylose test after surgery were found in both groups. The authors suggest that the improvement in intestinal absorption is due to an increase of systemic blood flow after operation. Simultaneously, the stldy confirms, on natural human model, the known dependence between blood flow and the intestinal absorption rate.
Subject(s)
Heart Septal Defects, Atrial/surgery , Heart Septal Defects, Ventricular/surgery , Xylose/metabolism , Adolescent , Child , Child, Preschool , Female , Growth , Humans , Intestinal Absorption , Intestines/blood supply , Male , Regional Blood FlowABSTRACT
Plasma renin acitivity was measured in II cases of coarctation of the aorta before and after operation. The values of plasma renin activity in the recumbent position before operation were significantly lower than in the control group. After surgery plasma renin activity rose to normal levels. There was no correlation between plasma renin activity levels and arterial blood pressure. The renin-angiotensin system seems not to be involved directly in the maintenance of hypertension in patients with aortic coarctation.
