Artery Vein Anastomosis
Artery Vein Anastomosis - Related Videos
08:27
Adult Mouse Venous Hypertension Model: Common Carotid Artery to External Jugular Vein Anastomosis.
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Cited by 13 •
2015
We describe a method for creating a reliable model of cerebral venous hypertension in the adult mouse. This model has been widely described and tested in the rat. This new counterpart in the mice opens the possibility of using genetic modified animals and thereby broadens the applications of the model.
04:33
Carotid Artery and Jugular Vein Interposition: A Technique to Induce Venous Intimal Hyperplasia in Rabbit Model
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2025
This video demonstrates the interposition of the rabbit carotid artery with the jugular vein to induce venous intimal hyperplasia by subjecting the veins to arterial pressure. This model will help investigate molecular and genetic interventions to attenuate the progression of intimal hyperplasia after revascularization surgeries.
15:21
Training a Sophisticated Microsurgical Technique: Interposition of External Jugular Vein Graft in the Common Carotid Artery in Rats
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Cited by 9 •
2012
Neointimal hyperplasia is the primary cause of stenosis in arterialized veins. We propose a new protocol whereby the right external jugular vein is grafted using the cuff technique in the common carotid artery of Sprague Dawley rats. The survival rate was 100 % at the time point of sacrifice.
16:19
Heterotopic Auxiliary Rat Liver Transplantation With Flow-regulated Portal Vein Arterialization in Acute Hepatic Failure
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Cited by 5 •
2014
Auxiliary liver transplantation provides a temporary support in acute hepatic failure, until regeneration of the failing liver. The heterotopic auxiliary liver transplantation (HALT) with portal vein arterialization (PVA) renders sufficient liver function. We developed an analogous technique in the rat, to examine the influence of the portal vein arterialization on the morphology and function of the graft.
08:42
Using Point of Care Ultrasound to Augment Acquisition of Physical Exam Skills: Veins and Arteries
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2023
Source: Joseph H. Donroe, Rachel Liu; Yale School of Medicine, USA Vascular diseases make up most cases of emergency hospitalization and carry a high mortality risk. Point-of-care ultrasound or POCUS enables accurate diagnosis of these diseases and shortens the time between detection of the cause and selection of appropriate treatment strategies, thus, reducing the patient mortality rate. POCUS offers a safe, low-cost, and less invasive bedside tool for examining arteries and veins, besides its...
FAQs
The key driver is the pressure difference between the arterial and venous sides. Arterial pressure pushes blood through the connection toward the lower-pressure vein, allowing flow to bypass the capillary bed. As the channel opens, blood distribution and local vascular resistance can change quickly, producing a rapid hemodynamic effect in the surrounding region.
Because it provides a route that does not pass through the capillary bed, the channel changes how much resistance the local circulation presents to arterial flow. Its opening can redirect blood toward the venous system rather than through capillary exchange regions. This helps explain why even a localized connection can influence regional blood flow.
When these connections open in specialized skin regions, blood can move rapidly from arteries into veins, changing local heat exchange. Their location in the skin links vascular shunting with temperature control rather than with capillary-based exchange alone. This makes them important for understanding how circulation participates in thermoregulation.
A surgically constructed connection forms an arteriovenous fistula that serves as hemodialysis access. Its significance comes from using arterial pressure and venous drainage to establish a blood-flow pathway for dialysis treatment. Understanding the resulting hemodynamics helps clinicians plan access and recognize how altered flow may affect surrounding circulation.
Assessment centers on the connection's structure and its hemodynamic consequences, including the direction of blood movement, influence of arterial pressure, venous drainage, local flow, and vascular resistance. These features help clinicians evaluate circulation and identify whether an anastomosis contributes to a vascular disorder or produces the intended access function.
Knowledge of the channel's structure and pressure-driven flow supports safer procedure design. Clinicians can account for the way a direct arterial-to-venous route changes local blood flow, vascular resistance, and heat exchange. The same hemodynamic principles apply when constructing dialysis access or planning vascular reconstruction, where unintended flow effects must be considered.