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A new percutaneous pulmonary valve implantation technique for complex right ventricular outflow tracts: The “Folded melody valve”
Author(s) -
Jalal Zakaria,
MalekzadehMilani Sophie,
Hofbeck Michael,
Al Najashi Khalid,
Thambo JeanBenoit,
Boudjemline Younes
Publication year - 2015
Publication title -
catheterization and cardiovascular interventions
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 116
eISSN - 1522-726X
pISSN - 1522-1946
DOI - 10.1002/ccd.25747
Subject(s) - medicine , pulmonary valve , cardiology , pulmonary regurgitation , outflow , percutaneous , stent , ventricular outflow tract , coronary arteries , surgery , tetralogy of fallot , artery , heart disease , physics , meteorology
Objectives This article sought to describe a new modification of the Melody valve that allows percutaneous pulmonary valve implantation (PPVI) in complex outflow tracts. Background PPVI has been validated as a valuable therapeutic option for the management of patients with dysfunctional right ventricular outflow tracts (RVOT). However, complex and unfavourable RVOT anatomy continue to limit the indications for PPVI. Methods Between April 2012 and November 2013, PPVI was performed in 10 patients (mean age = 16, 3 ± 5 years old) using a new modification of the Melody® valve consisting in a manual shortening of the Melody by folding the two extremities of the stent. We reviewed the results of this technique. Results Indications were short RVOT in three patients, prevention of retrosternal compression in two patients, bioprosthetic valves in four and coronary arteries proximity in one. No complication occurred during procedures. All patients had excellent hemodynamic results [mean post PPVI RV–PA gradient was 14 ± 6 mm Hg, three patients had trivial pulmonary regurgitation (PR) and the remaining had no PR]. After a mean follow‐up of 11 months (range 5–21 months), no patient had reintervention. No valve dysfunction or stent fractures were observed. Conclusion: The “Folded valve technique” is a safe modification of the Melody valve. By shortening the valve, this technique allowed PPVI in short and complex RVOTs with vulnerable neighborhood. © 2014 Wiley Periodicals, Inc. © 2014 Wiley Periodicals, Inc.