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<p>We report a 4-month-old, 3.7-kg girl with asplenia, single ventricle physiology, a common atrioventricular valve, and severe regurgitation after repair, along with moderately depressed ventricular function. She underwent supra-annular valve replacement with a 16-mm mechanical prosthesis and 18-mm expanded polytetrafluoroethylene graft, preserving the entire valve leaflets and subvalvular apparatus. Postoperative imaging showed no inflow/outflow obstruction and preserved ventricular function. She subsequently underwent a bidirectional Glenn shunt and is currently awaiting the Fontan procedure. This approach may be a valuable surgical option in similar infants with atrioventricular valve regurgitation and ventricular dysfunction.</p>

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Valve-Sparing Atrioventricular Valve Replacement in a Single-Ventricle Infant: Preserving the Entire Leaflet–Chordal Complex

  • 期刊论文

  • 发表日期：

    2025年6月28日

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  • Naoki Masaki,
  • Junichi Koizumi,
  • Takuya Goto,
  • Daichi Edaki,
  • Daiki Saitoh,
  • Azuma Tabayashi,
  • Masato Shioya,
  • Hirofumi Saiki,
  • Hajime Kin

摘要

We report a 4-month-old, 3.7-kg girl with asplenia, single ventricle physiology, a common atrioventricular valve, and severe regurgitation after repair, along with moderately depressed ventricular function. She underwent supra-annular valve replacement with a 16-mm mechanical prosthesis and 18-mm expanded polytetrafluoroethylene graft, preserving the entire valve leaflets and subvalvular apparatus. Postoperative imaging showed no inflow/outflow obstruction and preserved ventricular function. She subsequently underwent a bidirectional Glenn shunt and is currently awaiting the Fontan procedure. This approach may be a valuable surgical option in similar infants with atrioventricular valve regurgitation and ventricular dysfunction.