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Titolo:
Failed AAA endograft exclusion due to type II endoleak: Explant analysis
Autore:
White, RA; Walot, I; Donayre, CE; Woody, J; Kopchok, GE;
Indirizzi:
Harbor UCLA Med Ctr, Dept Surg, Torrance, CA 90509 USA Harbor UCLA Med Ctr Torrance CA USA 90509 pt Surg, Torrance, CA 90509 USA Harbor UCLA Med Ctr, Dept Radiol, Torrance, CA 90509 USA Harbor UCLA Med Ctr Torrance CA USA 90509 Radiol, Torrance, CA 90509 USA
Titolo Testata:
JOURNAL OF ENDOVASCULAR THERAPY
fascicolo: 3, volume: 8, anno: 2001,
pagine: 254 - 261
SICI:
1526-6028(200106)8:3<254:FAEEDT>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
ABDOMINAL AORTIC-ANEURYSM; ENDOVASCULAR REPAIR; STENT-GRAFTS; PERFUSION;
Keywords:
AneuRx stent-graft; collateral perfusion; inferior mesenteric artery; lumbar arteries; aneurysm expansion;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
15
Recensione:
Indirizzi per estratti:
Indirizzo: White, RA Harbor UCLA Med Ctr, Dept Surg, 1000 W Carson St,Box 11, Torrance, CA 90509 USA Harbor UCLA Med Ctr 1000 W Carson St,Box 11 Torrance CA USA90509
Citazione:
R.A. White et al., "Failed AAA endograft exclusion due to type II endoleak: Explant analysis", J ENDOVAS T, 8(3), 2001, pp. 254-261

Abstract

Purpose: To report the patient history and analysis of an explanted modular bifurcated endograft that was implanted to exclude an abdominal aortic aneurysm (AAA). Case Report: An 80-year-old man with a 6-cm AAA underwent uneventful endovascular implantation of a bifurcated AneuRx stent-graft. His postproceduralclinical course was uneventful, although persistent contrast enhancement of the aneurysm remained via the inferior mesenteric artery (IMA). By 6 months, an endoleak connecting to the lumbar and mesenteric arteries became apparent. Over the ensuing 12 months, the endoleak and aneurysm enlarged; branch artery embolization was attempted in 4 percutaneous procedures. Despite successful IMA occlusion, the aneurysm continued to increase in diameter and volume, necessitating conversion to a conventional bypass at 20 months. Analysis of the explanted specimen revealed an intact endograft with fibrousincorporation of the stent framework at the proximal and distal fixation sites only; no incorporation of the endograft was noted within the aneurysm. The feeding channel for the endoleak was not identified. Conclusions: Serial imaging is a vital component of endograft surveillance, and persistent type II endoleaks that cannot be completely embolized endanger the longevity of the aneurysm exclusion. Explant analysis can play an important role in understanding the mechanisms of endograft failure.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 23:06:44