1. Conduit-on-valve replacement of a degenerated mitral bioprosthesis with a bioprosthesis 
Jen-Ping Chang, MD, Chiung-Lun Kao, MD, Kuei-Ton Tsai, MD, Ming-Jang Hsieh, MD, Morgan Fu, MD 
The Annals of Thoracic Surgery 
Volume 75, Issue 6, Pages (June 2003)
DOI: /S (02)

2. Fig 1
The bioprosthesis–Dacron tube conduit was completed with the bovine pericardial strip covering all Dacron surfaces, with the smooth surface out.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )

3. Fig 2
Drawing of the conduit-on-valve mitral re-replacement. All degenerated leaflet tissue is removed (arrow), and the bioprosthesis–Dacron tube composite graft is apposed to the inflow aspect of the previous bioprosthetic stent.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )

4. Fig 3
Intraoperative appearance of the completed bioprosthesis–Dacron tube conduit mitral re-replacement. The composite graft sits on the atrial aspect of the previous bioprosthetic stent.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )

5. Fig 4
Transthoracic echocardiography 3 months postoperatively showing the mitral conduit-on-valve with valve area of 2.69 cm2.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )

6. Fig 5
Transthoracic echocardiography showing the mitral conduit-on-valve bioprosthesis projecting into the left atrium without any thrombus formation 6 months postoperatively without anticoagulation.
The Annals of Thoracic Surgery  , DOI: ( /S (02) )