Evidence of Impending Embolization of a Calcific Cusp Fragment from a Mitral Porcine Xenograft1

U. Bortolotti; A. Milano; G. Thiene; M. Valente; A. Mazzucco; V. Gallucci

doi:10.1055/s-2007-1022433

The Thoracic and Cardiovascular Surgeon, Inhaltsverzeichnis

Thorac Cardiovasc Surg 1982; 30(6): 405-406
DOI: 10.1055/s-2007-1022433

Evidence of Impending Embolization of a Calcific Cusp Fragment from a Mitral Porcine Xenograft¹

U. Bortolotti¹ , A. Milano¹ , G. Thiene² , M. Valente² , A. Mazzucco¹ , V. Gallucci¹

¹Department of Cardiovascular Surgery,
²Department of Pathology, University of Padova Medical School, Padova, Italy

1This work was supported in part by grant No. 80 00449.04 of the Consiglio Nazionale delle Ricerche, Rome, Italy

Abstract

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Summary

The use of porcine bioprostheses has been associated with a low rate of embolic complications. The case here presented provides evidence that systemic emboli in porcine valve recipients may not necessarily be due to intracardiac or prosthetic thrombosis, but to detachment and migration of fragments of degenerated cusp tissue. Therefore, urgent assessment of xenograft function is recommended in patients with a porcine bioprosthesis who experience embolic episodes late postoperatively.

Key words

Mitral valve prosthesis - Porcine xenograft - Tissue valve degeneration

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