A new percutaneous pulmonary valve implantation technique for complex right ventricular outflow tracts: The “Folded melody valve”

Catheterization and Cardiovascular Interventions - Tập 85 Số 4 - Trang 604-610 - 2015
Zakaria Jalal1,2,3, Sophie Malekzadeh‐Milani1,2, Michael Hofbeck4, Khalid Al Najashi5, Jean‐Benoît Thambo3, Younès Boudjemline1,2,6
1Department of Congenital Adult Cardiology, Centre de Référence Malformations Cardiaques Congénitales Complexes—M3C, George Pompidou European Hospital Assistance Publique des Hôpitaux de Paris, Unit for Adults with Congenital Heart Defects Paris France
2Department of Congenital and Pediatric Cardiology, Centre de Référence Malformations Cardiaques Congénitales Complexes—M3C, Necker Hospital for Sick Children Assistance Publique des Hôpitaux de Paris, Pediatric Cardiology Paris France
3Department of Pediatric and Adult Congenital Heart defects University Hospital of Bordeaux Pessac France
4Department of Pediatric Cardiology, University Children’s Hospital, Tuebingen, Germany
5Department of Pediatric Cardiology, Prince Sultan Cardiac Center, Riyadh, Saudi Arabia
6Université Paris Descartes, Sorbonne Paris Cité, EA 7328 Paris, France

Tóm tắt

ObjectivesThis article sought to describe a new modification of the Melody valve that allows percutaneous pulmonary valve implantation (PPVI) in complex outflow tracts.BackgroundPPVI 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.MethodsBetween 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.ResultsIndications 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.

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Catheterization and Cardiovascular Interventions

Tập 85 Số 4

604-610

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