In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures.

In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Research Abstract Details 

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In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Abstract Text:

PURPOSE: Several synthetic materials have been used for cardiac reconstruction in patients with complex congenital heart defects. These materials are not viable, do not grow with children, and may necessitate reoperation. We report here on the cardiac implantation of a recently developed, degradable porous material designed to facilitate cellular ingrowth during the healing process. DESCRIPTION: An elastomeric, biodegradable polyester urethane urea (PEUU) was processed into circular scaffolds and used to replace a surgical defect in the right ventricular outflow tract of adult rats. Control rats were implanted with expanded polytetrafluoroethylene. Histologic evaluation was performed at 4, 8, and 12 weeks postsurgery. EVALUATION: All animals survived the surgery. Both PEUU and expanded polytetrafluoroethylene were encapsulated with fibrous tissue and had complete endothelialization on the endocardial surface with no aneurysm formation or thrombus noted. With PEUU patching, fibroblast ingrowth occurred at 4 weeks, increasing with time. In contrast, expanded polytetrafluoroethylene patches exhibited no ingrowth and elicited local inflammation that moderated with time. CONCLUSIONS: The PEUU patch demonstrated suitable mechanical properties and biocompatible characteristics in the right ventricular outflow tract replacement model, permitting cellular integration and endocardial endothelialization with minimal inflammation. Future application of this material as a cardiovascular scaffold seems promising.

In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Publishing Authors By Initials

For similar cardiovascular diseases: heart diseases: ventricular outflow obstruction research abstracts see: cardiovascular diseases: heart diseases: ventricular outflow obstruction research

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In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: The Annals of thoracic surgery

VOLUME: 83

Page Numbers: 648-54

Journal Abbreviation: Ann. Thorac. Surg.

ISSN: 1552-6259

DAY: 3

MONTH: Feb

YEAR: 2007

In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 15030100

In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Keywords Mesh Terms:

KEYWORDS: Ventricular Outflow Obstruction

MESH TERMS: surgery

Chemical & Substance for Abstract: In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures. Information

Substance Name: Mitrathane

Registry Number: 97343-15-2

Grant and Affiliation Information for In vivo evaluation of a porous, elastic, biodegradable patch for reconstructive cardiac procedures.

AFFILIATION: Department of Surgery, McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania, USA.

Country: Netherlands

AGENCY: United States NHLBI

GRANT: HL 069368

ACRONYM: HL

MEDLINETA: Ann Thorac Surg

REFSOURCE: Ann Thorac Surg. 2007 Feb;83(2):654

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