arteriovenous


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arteriovenous

 [ahr-te″re-o-ve´nus]
both arterial and venous; pertaining to both artery and vein.

ar·te·ri·o·ve·nous (AV),

(ar-tēr'ē-ō-vē'nŭs),
Relating to both an artery and a vein or to both arteries and veins in general; both arterial and venous, as an "AV anastomosis."

arteriovenous

/ar·te·rio·ve·nous/ (-ve´nus) both arterial and venous; pertaining to or affecting an artery and a vein.

arteriovenous

(är-tîr′ē-ō-vē′nəs)
adj.
Of, relating to, or connecting both arteries and veins.

arteriovenous (AV)

[-vē′nəs]
Etymology: Gk, arteria + L, vena, vein
pertaining to arteries and veins.

ar·te·ri·o·ve·nous

(A-V, AV) (ahr-tēr'ē-ō-vē'nŭs)
Relating to both an artery and a vein or to both arteries and veins in general; both arterial and venous, as an "arteriovenous (A-V) anastomosis."

ar·te·ri·o·ve·nous

(AV) (ahr-tēr'ē-ō-vē'nŭs)
Relating to both an artery and a vein or both arteries and veins in general.

arteriovenous

both arterial and venous; pertaining to both artery and vein.

arteriovenous anastomosis
a direct connection between an artery and a vein that acts as a shunt to bypass the capillary bed. These occur in areas where a high volume blood supply is needed only intermittently, e.g. the intestine.
arteriovenous fistula
an abnormal communication between an artery and a vein; includes cardiac defects such as ventricular septal defects and patent ductus arteriosus. Peripheral fistulae, especially in the extremities, may be localized, usually acquired and the result of trauma, while congenital defects tend to be more diffuse, involving a network of anastomosing vessels.
The effects of arteriovenous fistulae are variable, depending on their location and the amount of blood carried. Within the liver they usually connect the hepatic artery and portal vein, causing portal hypertension and ascites. Small peripheral fistulae may be noticeable only as warm, reducible swellings, often with an audible thrill, or give rise to edema distal to the site. More severe effects are also possible.
pulmonary arteriovenous fistula
a congenital anomalous communication between the pulmonary arterial and venous systems, allowing unoxygenated blood to enter the systemic circulation.
References in periodicals archive ?
Patients with chronic renal failure who already had any other type of haemodialysis access, but needed a permanent arteriovenous fistula.
The natural history and predictive features of hemorrhage from brain arteriovenous malformations.
Demographic, morphological, and clinical characteristics of 1289 patients with brain arteriovenous malformation.
Predictive factors for response of peripheral arteriovenous malformations to embolization therapy: Analysis of clinical data and imaging findings.
Chronic hemodialysis using venipuncture and a surgically created arteriovenous fistula.
Hekimoglu, "Superselective arterial embolization of pseudoaneurysm and arteriovenous fistula caused by transurethral resection of the prostate," Polish Journal of Radiology, vol.
Arterial theft after arteriovenous fistulas is a frequent phenomenon in diabetic patients due to the vascular complications of diabetes which limit the ability of the arteries to relax in order to reduce peripheral resistance and increase blood flow distal to the anastomosis.
Pulmonary arteriovenous malformations generally do not affect cardiac hemodynamics in contrast to systemic AVMs, however, degree of right-to-left shunt from pulmonary artery to vein determines the severity of clinical symptoms.
This flow rig allows very detailed measurements of the flowfield in the near vicinity of an idealised arteriovenous fistula and the flowfield around the venous and arterial needles.