The study was carried out to estimate physical changes (body weight, height) in 62 children with congenital heart diseases, treated with interventional treatment in National Hospital of Pediatrics, estimate body weight, height of patients before and after treatment and find some related factors. The results showed that before treatment, body weight and height were -2.3 SD and -1.9 SD respectively
67. 7 percent patients had malnutrition, included 27.4 percent with moderate and 4.8 percent with severe malnutrition
41.9 percent children had height -2SD. After intervention, nutrition status recovered dramatically, with malnutrition rate 22.6 percent, with only 3.2 percent moderate and severe malnutrition, the stunting rate reduced to 32.3 percent. The severity of malnutrition related to insufficiency in food intake, heart failure and blood volume from heart to lungs. After intervention, in group without residual shunt, the nutrition status recovered better than that in group without it (p 0.05). In conclusion, congenital heart diseases severely affects physical development of patients. Interventional treatment significantly improved body weight and height.