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  • Title: Microcatheter-assisted stenting of the tortuous vertical ductus arteriosus via femoral access in a duct-dependent pulmonary circulation.
    Author: Haas NA, Fernandez-Rodriguez S, Dalla Pozza R, Fischer M, Ulrich S, Jakob A, Lehner A.
    Journal: Int J Cardiol; 2019 Jun 15; 285():103-107. PubMed ID: 30851992.
    Abstract:
    BACKGROUND: Stenting of the patent ductus arteriosus (PDA) has been accepted as alternative option to surgical shunting to enable additional pulmonary blood flow or for palliation of patients with a truly duct-dependent pulmonary circulation. The procedure can be challenging given the variable and often tortuous anatomy of the PDA and various technical approaches are reported. OBJECTIVE: To report an alternative technique to treat tortuous ducts with microcatheter assistance and by transfemoral approach. METHODS: We applied this technique of PDA stenting in 5 consecutive patients (4/5 age < 1 week, weight 2,7-3,2 kg; 1/5 re-do PDA stenting at 6,5 month and 5,9 kg). A soft coronary guidewire was advanced by microcatheter assistance into the branch pulmonary arteries and thereafter replaced by an extrastiff guidewire to enable the placement of long coronary stents. RESULTS: Successful PDA stenting with this stepwise approach and with femoral access only could be achieved in all patients (n = 5/5). A single stent was used in 2 patients (one with re-do stenting and previous stents). 3/5 patients had 2 stents implanted by telescopic technique. Stent sizes used were 4,5 × 15 mm (n = 2) and 4,5 × 18 mm (n = 6). No guide wire or stent dislodgement appeared through all procedures with microcatheter assistance. CONCLUSIONS: This technique enables PDA stenting via transfemoral approach in complex and tortuous ducts and thereby offers an attractive addition to the interventional management of truly duct-dependent pulmonary circulation.
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