Thi·ry-Vel·la fis·tu·la(tē'rē vāl'ah),
experimental isolation of a segment of intestine in an animal; a loop of intestine is isolated, its vascular and nervous connections are preserved, and continuity of the intestinal tract is restored by an end-to-end anastomosis; each end of the isolated segment is connected to an independent opening in the abdominal wall.
Synonym(s): Vella fistula
Etymology: Ludwig Thiry, Austrian physiologist, 1817-1897; Luis Vella, Italian physiologist, 1825-1886
an artificial passage from the abdominal surface of an experimental animal to an isolated intestinal loop, created surgically for the study of intestinal secretions. The continuity of the animal's gut is restored by anastomosis of the severed sections, and the vascular connections and mesenteric attachment of the isolated loop are preserved. The ends of the isolated segment are attached to two openings in the skin of the abdomen to form a closed internal loop.
Thiry-Vella fistula(1) Thiry fistula, see there.
(2) Vella fistula, see there.
Thiry,Ludwig, Austrian physiologist, 1817-1897.
Thiry fistula - Synonym(s): Thiry-Vella fistula
Thiry-Vella fistula - experimental isolation of a segment of intestine in a dog or other animal. Synonym(s): Thiry fistula; Vella fistula
Vella,Luigi, Italian physiologist, 1825-1886.
Thiry-Vella fistula - see under Thiry
Vella fistula - Synonym(s): Thiry-Vella fistula