Stentless Xenograft Implantation in Aortic Position in a 7-Year-Old Girl

作者：Sharef Sadik; Coleman Ryan; Rivenes Shannon; Wilmot Ivan; Altman Carolyn; Madden Fuentes Ramiro; Salazar Jorge^*

来源：Texas Heart Institute Journal, 2010, 37(3): 347-349.

• Aortic valve
• pathology
• surgery
• trans
• plantation
• bioprosthesis
• cardiac surgical procedures
• disease-free survival
• heart
• valve diseases
• surgery
• heart valve prosthesis implantation
• postoperative
• complications
• prevention &amp
• control
• prosthesis design
• risk factors
• treatment outcome

Disease or dysfunction of the aortic valve in pediatric patients presents a substantial challenge. Valve preservation, even if not the definitive solution, is always optimal. Successful repair will enable somatic growth and avoid repeated valve replacement and the need for systemic anticoagulation. When repair of the aortic valve is not possible in pediatric patients, replacement of the valve requires the most suitable (or, often, the least unsuitable) choice for each patient. The limitations of the typical replacement options (pulmonary autografts, mechanical valves, stented bio prostheses, and homografts) have led us to explore the use of stentless xenografts.
Herein, we present a case of aortic valve replacement with a stentless porcine xenograft in one of the youngest and smallest patients reported to date. Use of the xenograft enabled a proper fit with a small aortic annulus, precluded the need for subsequent systemic anticoagulation, and averted a transvalvular gradient and the creation of 2-valve disease. We believe that the stentless porcine xenograft is feasible for use in pediatric patients who require aortic valve replacement. (Tex Heart Inst J 2010;37(3):347-9)

• 出版日期2010-6