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Journal of Long-Term Effects of Medical Implants

Publicou 4 edições por ano

ISSN Imprimir: 1050-6934

ISSN On-line: 1940-4379

SJR: 0.184 SNIP: 0.485 CiteScore™:: 1.1 H-Index: 39

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Analysis of Sixty-Two Explanted Liotta Bioprostheses: Biocompatibility, Biofunctionality, and Biodurability Issues

Volume 18, Edição 2, 2008, pp. 91-131
DOI: 10.1615/JLongTermEffMedImplants.v18.i2.10
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RESUMO

Sixty-two explanted Liotta porcine bioprostheses were examined to review the issues related to their biocompatibility, biofunctionality, and biodurability. These bioprostheses were harvested from 56 patients with implantation times ranging from only a few hours to more than nine years of implantation. There were 10 acute and short-term (< 1 year), 20 midterm (1 < t < 5 years), and 32 long-term (> 5 years) cases. The indications for the reoperations were: hemodynamic (59), thrombosis (10), and endocarditis (3). The major indications varied according to the duration of implantation: blood infiltration, fibrin buildup, thrombosis in the short-term; endocarditis and hemodynamic insufficiency in the midterm; and mineralization and tears causing hemodynamic incompetence in the long term. Mineralization proved to be the main threat to long-term durability for porcine valves. Besides a few short-term failures, these explanted devices slowly degenerated over time and were replaced to prevent congestive heart failure. Documentation of the failure modes of these porcine valves is important since the demand for bioprostheses will increase in the future, in particular for percutaneous devices. Such bioprostheses emphasize a critical biocompatibility issue following implantation because they have the capacity to remain free of thrombus in the absence of anticoagulation. The biofunctionality appears to be adequate in the absence of subsequent pathology with restoration of normal valve function. However, the documentation of such significant long-term biodurability issues raises questions that have been addressed but not fully answered yet with the new generations of bioprostheses.

CITADO POR
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  2. Bourget J.-M., Zegdi R., Lin J., Wawryko P., Merhi Y., Convelbo C., Mao J., Fu Y., Xu T., Merkel N.O., Wang L., Germain L., Zhang Z., Guidoin R., Correlation between structural changes and acute thrombogenicity in transcatheter pericardium valves after crimping and balloon deployment, Morphologie, 101, 332, 2017. Crossref

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  4. Gauvin Robert, Marinov Georgi, Mehri Yayhe, Klein Julianne, Li Bin, Larouche Danielle, Guzman Randolph, Zhang Ze, Germain Lucie, Guidoin Robert, A comparative study of bovine and porcine pericardium to highlight their potential advantages to manufacture percutaneous cardiovascular implants, Journal of Biomaterials Applications, 28, 4, 2013. Crossref

  5. Rassoli Aisa, Li Yiming, Bao Xianhao, Kawecki Fabien, Zhao Xinzhe, Chappard Daniel, Le-Bel Gaëtan, Feng Jiaxuan, Weber Benedikt, Fatouraee Nasser, Zhang Ze, Jing Zaiping, Germain Lucie, Wang Lu, Guidoin Robert, Donkey pericardium as a select sourcing to manufacture percutaneous heart valves: Decellularization has not yet demonstrated any clear cut advantage to glutaraldehyde treatment, Medicine in Novel Technology and Devices, 4, 2019. Crossref

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