Arterial Venous Anastomosis
Arterial Venous 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.
07:34
Microsurgical Venous Pouch Arterial-Bifurcation Aneurysms in the Rabbit Model: Technical Aspects
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Cited by 11 •
2011
An optimized technique for the microsurgical creation of arterial bifurcation aneurysms mimicking bifurcation human cerebral aneurysms is described. A venous pouch is sutured into an artificially created true bifurcation of both common carotid arteries. Facilitated microsurgical techniques and aggressive postoperative anticoagulation and analgesia lead to minimized morbidity rates and high aneurysm patency rates.
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.
09:38
Femoral Arterial and Venous Catheterization for Blood Sampling, Drug Administration and Conscious Blood Pressure and Heart Rate Measurements
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Cited by 53 •
2012
Chronic catheterization of blood vessels in the rat is often required for administration of substances, obtain blood sample over a period of time or for direct conscious blood pressure measurements. Femoral arterial catheterization of the rat and corresponding measurements of blood pressure in the conscious animal will be demonstrated.
13:10
Direct Re-implantation of Left Coronary Artery into the Aorta in Adults with Anomalous Origin of Left Coronary Artery from the Pulmonary Artery (ALCAPA)
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Cited by 7 •
2017
Surgical correction of ALCAPA is highly recommended, regardless of age or the degree of intercoronary collateralization. This protocol presents a technique for the direct re-implantation of adult-type ALCAPA into the aorta to re-establish the dual-coronary perfusion. Whenever feasible, direct re-implantation is preferred to other surgical correction techniques.
FAQs
Opening the channel diverts blood away from the intervening capillary network and directs it more rapidly from the arterial side toward the venous side. This changes regional blood-flow distribution and can modify venous return. The resulting shunt is therefore important when interpreting how vascular channels regulate perfusion in skin and other tissues.
Closing the connection prevents blood from using the direct arterial-to-venous route, leaving flow to pass through the intervening capillary network. This provides a mechanism for changing regional perfusion rather than maintaining a fixed circulation pattern. In tissues involved in heat exchange, such control contributes to thermoregulation by altering blood flow near the body surface.
The main hemodynamic effects are altered regional blood flow and modified venous return. Because blood can bypass capillaries, abnormal or excessive shunting may change how circulation is distributed through a tissue. These effects help clinicians evaluate vascular malformations and understand why changes in channel behavior can influence both local perfusion and broader vascular findings.
Their thermoregulatory role comes from controlling blood flow through vascular channels in skin and related tissues. Opening or closing a channel changes how much blood reaches the capillary network and how much is directed toward the venous circulation. This adjustable distribution helps explain how superficial vascular flow can participate in regulation of heat exchange.
A surgically created arteriovenous fistula provides a direct vascular connection that can serve as access for hemodialysis. Its clinical importance depends on the hemodynamic changes produced by linking arterial and venous circulation. Assessment after access surgery therefore considers the behavior of the connection and its effects on blood flow and venous return.
Clinicians evaluate these connections by considering their shunting behavior and hemodynamic consequences. A vascular malformation may redirect blood away from the capillary network, alter regional flow, or affect venous return. Understanding those effects supports interpretation of abnormal circulation and helps guide management of vascular disease rather than viewing the lesion as an isolated structural finding.
After reconstructive or access surgery, arterial venous connections are relevant because their flow patterns can influence the result of the procedure. Clinicians assess whether the connection produces the intended vascular effect and whether regional blood flow or venous return has changed appropriately. This hemodynamic perspective helps in evaluating outcomes after vascular reconstruction and hemodialysis-access creation.