Document Detail


Sorin Solo stentless valve: extended adaptability for sinotubular junction mismatch.
MedLine Citation:
PMID:  18487239     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Stentless valve continence is affected by the implantation technique, annular symmetry and dilatation of the sinotubular junction. We tested in vitro how the Sorin Solo stentless pericardial valve adapts to a slightly dilated sinotubular junction. Stentless Sorin Solo aortic valves (25 mm) were sutured into a 32-mm Valsalva graft suspending the commissures into the expandable region of the graft. The neo-aortic root was pressurized and sinotubular junction size progressively decreased by wrapping the neocommissural ridge with Dacron rings. Direct endoscopic view and ultrasound imaging were used to observe geometry and morphology of leaflets, regurgitation, height and level of leaflets coaptation. Fresh porcine valves of the same annular size were used as controls. Solo valves had mild regurgitation at baseline, became continent at 32 mm sinotubular junction size and remained continent at any size of reduction, with optimal coaptation height and level. Porcine valves had severe regurgitation at baseline, became continent at 30 mm and showed mild insufficiency and reduction of the coaptation level at a sinotubular junction of 28 mm. The Solo valve prevents residual valve regurgitation for a wider range of sinotubular junction mismatch when compared with natural porcine valves. This extended tolerance to sinotubular junction mismatch suggests a safe use of stentless valves even in suboptimal geometry roots.
Authors:
Luca Weltert; Ruggero De Paulis; Daniele Maselli; Raffaele Scaffa
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Publication Detail:
Type:  Journal Article     Date:  2008-05-16
Journal Detail:
Title:  Interactive cardiovascular and thoracic surgery     Volume:  7     ISSN:  1569-9285     ISO Abbreviation:  Interact Cardiovasc Thorac Surg     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-07-30     Completed Date:  2008-10-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101158399     Medline TA:  Interact Cardiovasc Thorac Surg     Country:  England    
Other Details:
Languages:  eng     Pagination:  548-51     Citation Subset:  IM    
Affiliation:
Department of Cardiac Surgery, European Hospital, Via Portuense 700, 00149 Rome, Italy.
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MeSH Terms
Descriptor/Qualifier:
Animals
Aortic Valve / pathology,  surgery*
Aortic Valve Insufficiency / etiology,  pathology,  prevention & control*
Bioprosthesis*
Heart Valve Prosthesis*
Heart Valve Prosthesis Implantation / adverse effects,  instrumentation*
Materials Testing
Prosthesis Design
Swine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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