arteriovenous anastomosis

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Related to arteriovenous anastomosis: vasa vasorum, arterial anastomosis


 [ah-nas″to-mo´sis] (pl. anastomo´ses) (Gr.)
1. communication between two tubular organs.
2. surgical, traumatic, or pathologic formation of a connection between two normally distinct structures. adj., adj anastomot´ic.
arteriovenous anastomosis
anastomosis between an artery and a vein.
Simple arteriovenous anastomosis. From Dorland's, 2000.
crucial anastomosis an arterial anastomosis in the upper part of the thigh, formed by the anastomotic branch of the sciatic artery, the internal circumflex artery, and the first perforating and transverse portions of the external circumflex artery.
end-to-end anastomosis
1. an anastomosis connecting the end of an artery and that of some other vessel, either directly or with a synthetic graft.
2. anastomosis of two sections of colon, such as with partial colectomy or when an ileostomy is closed.
end-to-side anastomosis an anastomosis connecting the end of one vessel with the side of a larger one.
heterocladic anastomosis one between branches of different arteries.
ileorectal anastomosis surgical anastomosis of the ileum and rectum after total colectomy, as is sometimes performed in the treatment of ulcerative colitis.
intestinal anastomosis establishment of a communication between two formerly distant portions of the intestine.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

ar·te·ri·o·ve·nous an·as·to·mo·sis

(ava) (ahr-tēr'ē-ō-vē'nŭs ă-nas'tŏ-mō'sis)
Vessels through which blood is shunted from arterioles to venules without passing through the capillaries.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Yamasaki, "The use of arteriovenous anastomosis for replantation of the distal phalanx of the fingers," Plastic and Reconstructive Surgery, vol.
They are benign and characteristically solitary lesions that arise from the glomus body, an arteriovenous anastomosis involved in thermoregulation.
It arises from the glomus body, an arteriovenous anastomosis that is normally involved in the regulation of body temperature, blood pressure, and the composition of the interstitial cellular environment.