چكيده به لاتين
Recent medical engineering researches on the performance of patients undergoing heart valve surgery (Valvuloplasty) in adulthood has always warned surgeons suggesting various alternative methods for this matter. Double Pathway Method is a unique technique in the total correction of congenital diseases (CHD), especially Tetralogy of Fallot, during which, in addition to the pulmonary valve, the valve annulus and the Sinus of Valsalva remain intact resulting in right heart’s better function in the systole. On the other hand, in the diastole phase, the rate of valve insufficiency is negligible due to the intact valve and annulus. This study is a combination of examining the clinical, after surgery results of 23 infants (3-0 years old) who have undergone the final correction of Tetralogy of Fallot by double path method since 2016 in Moheb, Laleh and Pediatric Medical Center of Tehran Iran, along with a brief introduction of the technique as well as the simulation and computational fluid dynamics analysis of flow in both pathways of right ventricular outflow tract, pulmonary valve and pulmonary artery. The analytical results obtained from the flow simulations prove the observations on the high pace recuperating of the cardiovascular system along with the clinical evidence of the participants in the study demonestrate the effectiveness of the abovementioned technique. Although definitive results require an increase in the number of recorded cases and more time, the observations obtained from statistical and fluid analysis are reliable and predict the continuation of the treatment process in the coming years after surgery and no need for any reoperation or latter intervention
