Valved jugular vein segments for right ventricular outflow tract reconstruction in young sheep Paul Herijgers, MDa, Shigeyuki Ozaki, MDa, Erik Verbeken,

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Valved jugular vein segments for right ventricular outflow tract reconstruction in young sheep Paul Herijgers, MDa, Shigeyuki Ozaki, MDa, Erik Verbeken, MDb, Alfons Van Lommel, PhDb, Bart Meuris, MDa, Emmanuel Lesaffre, PhDc, Willem Daenen, MDa, Willem Flameng, MDa The Journal of Thoracic and Cardiovascular Surgery Volume 124, Issue 4, Pages 798-805 (October 2002) DOI: 10.1067/mtc.2002.121043 Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 1 Representative epicardial echocardiographic diastolic images of Contegra conduit (A) and MH100 conduit (B) after 5 months of implantation. Cusps of conduits are located at level of red arrows; remnants of destroyed native pulmonary valve are located at level of green arrows. Note very large coaptation of cusps in Contegra conduit; one leaflet in MH100 conduit is immobile; other is thickened and relatively short. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 798-805DOI: (10.1067/mtc.2002.121043) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 2 Representative macroscopic images of Contegra conduit (A) and MH100 conduit (B) seen from inflow (ventricular) side. Note difference between cusps, with perfect coaptation of thin cusps in Contegra conduit and lack of coaptation in thicker and stiffer cusps in MH100 conduit. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 798-805DOI: (10.1067/mtc.2002.121043) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 3 Representative x-ray images of Contegra conduit (A) and MH100 conduit (B) after longitudinal division of conduits into three segments. Note only minimal calcification near suture lines in Contegra conduits; calcification on wall portion of Hancock valves as well as at base of cusps is clearly visible in MH100 conduit. The Journal of Thoracic and Cardiovascular Surgery 2002 124, 798-805DOI: (10.1067/mtc.2002.121043) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions

Fig. 4 Representative histologic sections (hematoxylin and eosin stain) of Contegra conduit (A) and MH100 conduit (B). Note thin, fibrous sheathing in Contegra conduit, with thin cusp made almost entirely of collagen bundles. Outflow part and base of cusp of MH100 conduit are covered by thick, fibrous sheath. Architecture of Hancock cusp is distorted in its distal third. (Magnifications: A, ×11.3; B, ×10.6.) The Journal of Thoracic and Cardiovascular Surgery 2002 124, 798-805DOI: (10.1067/mtc.2002.121043) Copyright © 2002 American Association for Thoracic Surgery Terms and Conditions