Preliminary Experience in the Use of an Extracellular Matrix (CorMatrix) as a Tube Graft: Word of Caution Narutoshi Hibino, Patrick McConnell, Toshiharu.

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Presentation transcript:

Preliminary Experience in the Use of an Extracellular Matrix (CorMatrix) as a Tube Graft: Word of Caution Narutoshi Hibino, Patrick McConnell, Toshiharu Shinoka, Mahim Malik, Mark Galantowicz Department of Cardiothoracic Surgery, Nationwide Children’s Hospital Columbus, OH

Disclosure Patrick McConnell Grant/Research Support- Cormatrix Cardioavascular, Inc; Thoratec Corporation Consultant- Q test Laboratories; Clear Catheter Systems, Inc Toshiharu Shinoka Grant/Research Support- Gunze, Inc

There are no ideal materials for the repair of congenital heart disease Decellularized extracellular matrix from porcine small intestinal submucosa (CorMatrix) has been developed and commercialized Background

Our Preliminary Experience using CorMatrix as a Tube Graft Central PA reconstruction N=10 Aortic arch interposition N=3

The CorMatrix sheet was wrapped around Hegar dilator of the required size and the edge was sutured with 7-0 prolene Creation of CorMatrix Tube Graft

PatientDiagnosis Age at surgery (month) Diameter of tube (mm)Intervention for tubeResults 1 HLHS99StentFontan 2 HLHS67StentFontan 3 DILV, TGA, IAA69NASudden death 4 HLHS89NAFontan 5 HLHS69StentFontan 6 DILV, TGA, Arch hypoplasia68StentWaiting Fontan 7 HLHS58StentSudden death 8HLHS88 Stent, Central PA reconstruction with homograft Waiting Fontan 9 HLHS48BalloonWaiting Fontan 10 HLHS58StentWaiting Fontan Interposition CorMatrix Tube Graft for Central PA Reconstruction in Comprehensive Stage II Surgery

Pt 4 Pt 9 OP Follow UP Patent Graft in Central PA (N=2 of 10)

Pt 1 Pt 7 OPFollow Up Stenosed Graft in Central PA (N=8 of 10)

Graft Occlusion → Angioplasty, Stent →Stent Occlusion 1st Cath 2 nd Cath

Graft Occlusion → Stent Occlusion → Graft Replacement with PA Homograft Explanted graft

Diameter (mm) OP Diameter Change of CorMatrix Tube Graft for Central PA Reconstruction 1 st cath2 nd cath3 rd cath

PatientDiagnosis Age at surgerySurgery Diameter of tube (mm)Results 1IAA,AP window,VSD,ASD6 day Repair IAA/AP window/VSD/ASD 12 No stenosis/ dilatation 2 IAA,VSD,Dextrocardia,Hypoplas tic right lung 16 dayRepair IAA/VSD11 No stenosis/ dilatation 3 IAA,VSD,Brain trauma with depressed skull fracture, s/p PDA stent/bilatereal PAB 5 month Repair IAA/VSD/ASD, Removal PDA stent/PA band 11 No stenosis/ dilatation Interposition CorMatrix Tube Graft for Aortic Arch Repair for Interrupted Aortic Arch

Diameter (mm) Op FU OP 3 mo 1 year

While angioplasty using CorMatrix as an interposition tube vascular graft is feasible and safe in aorta, long follow up is required to assess the potential for growth of arterial conduit. A high rate of occurrence of intimal hyperplasia formation with significant stenosis was found in reconstructed pulmonary arteries supplied by venous circulation. CorMatrix may not be the ideal material as a conduit in venous circulation to provide long-term durable outcomes. Conclusion

Presentation Number: 99 Title: Preliminary experience in the use of an extracellular matrix (CorMatrix) as a tube graft: Word of caution Session Name: Wednesday, April 29, 2015 Session Room: 612 Session Date: Congenital Heart Disease Simultaneous Scientific Session Presentation Time: 8:45 AM - 8:56 AM Presentation Format: You will have an 5 minute presentation followed by 6 minutes of discussion. Discussant Name: David Morales