INTERRELATIONS OF HEART HEMODYNAMICS PARAMETERS IN CHILDREN WITH BICUSPID AORTIC VALVE AT DYNAMIC OBSERVATION

Abstract

Children with bicuspid aortic valve of the heart (BAV ) require dynamic observation due to the progredient heart haemodynamics disorders and serious complications development such as impairment of left ventricular function, myocardial hypertrophy and aortic dissection. The aim of the study – to detect the relationships between heart Doppler echocardiography parameters and changes in intracardiac hemodynamics in children with BAV at their dynamic observation. Materials and Methods. In 28 children with a bicuspid aortic valve, with an average age of 10.2 ± 0.7 and without the signs of heart failure, a dopplerographic examination of the heart was performed in the follow-up dynamics after 1 year. A comparison of the obtained data of the basic dopplerographic parameters and correlation analysis between mentioned parameters at 1 and 2 investigation was conducted. Results and Discussion. A significant increase in the pressure gradient on the aortic valve as well as the end diastolic volume of the left ventricle was established at a repeat dopplerographic study. According to the correlation analysis during the follow-up examination the disappearance of previously revealed correlations with the right chambers of the heart and the appearance of new ones with hemodynamic parameters on the aortic valve were detected. Conclusions. The necessity of repeated dopplerographic examinations in children with BAV with an 1 year interval is determined.

Keywords

• двостулковий аортальний клапан
• діти
• доплерографія
• динамічне спостереження
• праві відділи серця.