| precapillary anastomosis | An anastomosis between arterioles just before they become capillaries. (05 Mar 2000) |
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| precapillary | Preceding a capillary;an arteriole or venule. (05 Mar 2000) |
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| precapillary pulmonary hypertension | <radiology> Vascular: increased flow (left to right shunts), decreased flow (tetralogy of Fallot), primary pulmonary hypertension, thromboembolic disease, pulmonary arteritides, Pleuropulmonary: emphysema, diffuse lung disease, fibrothorax, chest deformity, hypoventilation, high-altitude pulmonary hypertension (12 Dec 1998) |
| anastomosis | <surgery> An opening created by surgical, traumatic or pathological means between two normally separate spaces or organs. (04 May 1997) |
| anastomosis arteriovenosa | <anatomy> A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula. (12 Dec 1998) |
| anastomosis, roux-en-y | A y-shaped surgical anastomosis of any part of the digestive system which includes the small intestine as the eventual drainage site. (12 Dec 1998) |
| anastomosis, surgical | Surgical union or shunt between ducts, tubes or vessels. It may be end-to-end, end-to-side, side-to-end, or side-to-side. (12 Dec 1998) |
| aneurysm by anastomosis | A mass of dilated anastomosing vessels that produce a pulsating tumour usually in a superficial position. (05 Mar 2000) |
| arteriolovenular anastomosis | <anatomy> A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula. (12 Dec 1998) |
| arteriovenous anastomosis | <anatomy> A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula. (12 Dec 1998) |
| A-V anastomosis | <anatomy> A vessel that directly interconnects an artery and a vein, and that acts as a shunt to bypass the capillary bed. Not to be confused with surgical anastomosis, nor with arteriovenous fistula. (12 Dec 1998) |
| Beclard's anastomosis | An anastomosis between the right and the left end-branch of the deep lingual artery. Synonym: arcus raninus. (05 Mar 2000) |
| bevelled anastomosis | Anastomosis performed after cutting each of the structures to be joined in an oblique fashion. (05 Mar 2000) |
| Billroth I anastomosis | Excision of the pylorus with end-to-end anastomosis of stomach and duodenum. Synonym: Billroth I anastomosis. (05 Mar 2000) |
| Billroth II anastomosis | Resection of the pylorus with the greater part of the lesser curvature of the stomach, closure of the cut ends of the duodenum and stomach, followed by a gastrojejunostomy. Synonym: Billroth II anastomosis. (05 Mar 2000) |
| Braun's anastomosis | After gastroenterostomy, anastomosis between afferent and efferent loops of jejunum. (05 Mar 2000) |