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A retrograde approach for transcatheter valvotomy procedure in infants with pulmonary atresia intact ventricular septum (PA-IVS): retrograde versus antegrade approach



Introduction:

This study evaluates the retrograde approach compared to the antegrade approach in infants with PA-IVS who underwent transcatheter pulmonary valvotomy procedure at National Cardiovascular Center Harapan Kita, Jakarta, Indonesia.


Material and method:

This is a single-centre retrospective study conducted from January 2017 to June 2019 consisting of infants undergoing transcatheter pulmonary valvotomy procedures from our centre.


Results:

Among 3733 records of cardiac catheter procedure in paediatric patients during the last 3 years, there were 12 subjects with PA-IVS, where five subjects were done by antegrade approach and seven by retrograde approach. The retrograde approach is shown to excel the antegrade approach in terms of procedural time by 58.64 minutes (CI 95 % 32.97-84.29, p = 0.008) and PA-RV crossing time by 27 minutes (CI 95 % 14.01-39.99, p = 0.02). There was no significant difference in contrast used (120.23 ± 25.77 versus 150.27 ± 39.26 ml/BSA, p = 0.518), and right ventricle to pulmonary artery systolic pressure gradient after valvotomy (39.571 ± 5.814 versus 53.52 ± 29.15, p = 0.329) between the retrograde and the antegrade approach.


Conclusion:

The retrograde approach offered shorter procedural time and comparably satisfying results than the antegrade approach. The shorter procedural time was preferred due to the shorter duration of general anaesthesia, which may decrease the risk of neurodevelopmental deficits in the patient.


Keywords:

PA-IVS; Transcatheter pulmonary valvotomy; antegrade approach; procedural time; retrograde approach.



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