November 10, 2011Circulation Cardiovascular Interventions
Stent Fracture, Valve Dysfunction, and Right Ventricular Outflow Tract Reintervention After Transcatheter Pulmonary Valve Implantation
Why the study?
Does prestenting or implanting within an existing stent/bioprosthetic valve prevent stent fracture and RVOT reintervention in patients undergoing transcatheter pulmonary valve replacement?
Population
150 patients undergoing transcatheter pulmonary valve replacement in the Melody valve Investigational Device…
Design
Cohort
Follow-up
median 30 months
Authors
Discussion
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Member takes
Implication
Protected TPVR sites may extend MSF-free survival; leaves open whether prestenting improves outcomes in randomized trials.
Structured PICO
Does prestenting or implanting within an existing stent/bioprosthetic valve prevent stent fracture and RVOT reintervention in patients undergoing transcatheter pulmonary valve replacement?
P
Population
150 patients (median age, 19 years) undergoing transcatheter pulmonary valve (TPV) replacement in the Melody valve Investigational Device Exemption trial
I
Intervention
Transcatheter pulmonary valve (TPV) replacement with the Melody valve
O
Outcome
Melody stent fracture (MSF) and right ventricular outflow tract (RVOT) reinterventionhard clinical
A transcatheter pulmonary valve implant site protected by a prestent or bioprosthetic valve is associated with a lower risk of stent fracture and subsequent reintervention.
Cite This Study
McElhinney et al. (2011) studied this question.