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  • Title: SAPIEN valve for percutaneous transcatheter pulmonary valve replacement without "pre-stenting": A multi-institutional experience.
    Author: Morgan GJ, Sadeghi S, Salem MM, Wilson N, Kay J, Rothman A, Galindo A, Martin MH, Gray R, Ross M, Aboulhosn JA, Levi DS.
    Journal: Catheter Cardiovasc Interv; 2019 Feb 01; 93(2):324-329. PubMed ID: 30351525.
    Abstract:
    OBJECTIVES: To describe a multicenter experience of percutaneous transcatheter pulmonary valve replacement (TPVR) using the Edwards SAPIEN S3 valve without the use of a prior stent ("pre-stenting"). BACKGROUND: The SAPIEN S3 and XT valves have durable cobalt-chromium stent frames which may allow for TPVR in large diameter dysfunctional right ventricular outflow tracts (RVOTs) without pre-stenting the landing zone. METHODS: A retrospective review was performed of all patients with Congenital Heart Disease and dysfunctional RVOT who underwent TPVR using the SAPIEN valve without the use of a pre-stent. Imaging data, procedural elements, and clinical follow-up data were collected to evaluate short and intermediate-term results. RESULTS: Fifty-seven patients underwent percutaneous placement of the SAPIEN valve in the pulmonary position without the use of pre-stenting. The anatomical substrate varied: native RVOTs (n = 41), conduits (n = 10), and bioprosthetic valves (n = 6). There were no cases in which the valve could not be implanted and no cases of valve embolization or misplacement. On follow-up (range 1 month to 2.2 years, median 5.3 months), no patients had significant obstruction or regurgitation around the valve. There were no frame fractures. There were no procedural deaths. Major complications included severe aortic compression (n = 1) requiring surgical explantation and tricuspid valve injury requiring surgical intervention (n = 2). CONCLUSIONS: This limited multi-institutional experience demonstrates that the SAPIEN valve can be used for TPVR without the use of a pre-stent without medium-term risk of frame fracture, paravalvar leak, or embolization. Longer term follow-up is required to fully assess this method.
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