Vessel Remodeling after Intima-to-Intima Contact Anastomosis
Archives of Plastic Surgery
;
: 95-100, 2017.
Artículo
en Inglés
| WPRIM
| ID: wpr-161529
ABSTRACT
BACKGROUND:
Intima-to-intima microanastomotic vascular remodeling was explored, utilizing a polylactide-caprolactone absorbable vein coupler model (PAVCM), which was designed to simulate a non-absorbable counterpart system with the sole exception of being absorbable.METHODS:
Six New Zealand white rabbits were used. After transection of the jugular vein, 2 PAVCMs were placed, 1 at each transected end. The stumps were slipped through the PAVCMs, and the venous wall was everted 90° to achieve intima-to-intima contact. Reanastomosis of the transected jugular vein was performed bilaterally in 3 rabbits. In the other 3 rabbits, the jugular vein (20 mm) harvested from one side was interpositionally grafted to the jugular vein on the opposite side to ease the anastomotic tension. Patency testing, ultrasonography, and histologic assessments were conducted postoperatively at weeks 2, 4, 12, 16, 22, and 26.RESULTS:
All anastomotic sites were patent, without stenosis, occlusion, or dilatation. In the histologic sections, immature endothelial regeneration was observed at week 2, which was completed by week 4. Regeneration of the tunica media was noted at week 12. Between week 22 and week 26, the tunica media fully regenerated and the coupler dissipated entirely.CONCLUSIONS:
Despite the absence of a coupler to act as an anastomotic buttress, the structure and function of all the vessels appeared normal, even histologically. These outcomes are true milestones in the development of an absorbable vein coupler.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Regeneración
/
Procedimientos Quirúrgicos Vasculares
/
Venas
/
Anastomosis Quirúrgica
/
Ultrasonografía
/
Túnica Media
/
Constricción Patológica
/
Trasplantes
/
Dilatación
/
Remodelación Vascular
Tipo de estudio:
Estudio diagnóstico
Límite:
Animales
Idioma:
Inglés
Revista:
Archives of Plastic Surgery
Año:
2017
Tipo del documento:
Artículo
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