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12. Stenting of Native Right Ventricular Outflow Tract Obstructions in Symptomatic Infants.

Author

Bertram H, Emmel M, Ewert P, Grohmann J, Haas NA, Jux C, Kehl HG, Kitzmüller E, Kretschmar O, Müller G, and Wiebe W

Subjects
Feasibility Studies, Female, Follow-Up Studies, Humans, Hypoxia etiology, Infant, Male, Oxygen blood, Retreatment, Ventricular Outflow Obstruction congenital, Cardiac Catheterization, Stents, Ventricular Outflow Obstruction therapy
Abstract

Objective: To assess feasibility, safety and effectiveness of right ventricular outflow tract (RVOT) stenting in symptomatic young infants., Methods: Multicentre evaluation of 35 patients intended to undergo RVOT stenting in 11 pediatric cardiac centres from 2009 to August 2011., Results: Median age and weight at the time of first stent implantation were 8 weeks and 3.3 kg, with 40% of patients <3 kg. A total of 19 patients had suffered from hypoxemic spells, 8 patients were ventilated, 6 on inotropic support and 5 on prostaglandin infusion. Severe concomitant malformations were present in 11 patients, and acute infections in 2. Stenting of the RVOT was successfully performed in 33 patients, improving oxygen saturation from a median of 77 to 90% 2 days after intervention. Besides the 2 patients in whom RVOT stenting was not successful for technical reasons, there were no procedural complications. In 17 of 33 patients, 1-3 reinterventions were performed during follow-up, less than half of those were reinterventions in the RVOT. A total of 27 patients have undergone successful surgical repair 4-162 (median 19.5) weeks after initial RVOT stent implantation, 2 patients are still waiting. There were no perioperative deaths., Conclusions: Stenting of the RVOT provides a safe and effective management strategy for initial palliation in symptomatic young infants, including those patients not suitable or at higher risk for surgical therapy., (© 2015, Wiley Periodicals, Inc.)

Published
2015
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