Hepatic Artery Pressure
Hepatic Artery Pressure - Related Videos
04:46
Targeting Liver Tumors with Oncolytic Viruses via the Hepatic Artery
0 Views •
2025
The video demonstrates locoregional delivery of oncolytic viruses through hepatic arterial injection as a therapeutic approach for hepatocellular carcinoma. These viruses selectively replicate in tumor cells, inducing cell lysis and releasing tumor cell-associated antigens. This process triggers immunogenic cell death, inducing an anti-tumor response.
18:47
Surgical Procedures for a Rat Model of Partial Orthotopic Liver Transplantation with Hepatic Arterial Reconstruction
0 Views •
Cited by 22 •
2013
Orthotopic liver transplantation in rats is an indispensable experimental model for biomedical research. Here we present our surgical procedures for orthotopic rat liver transplantation with hepatic arterial reconstruction using a 50% partial graft.
16:19
Heterotopic Auxiliary Rat Liver Transplantation With Flow-regulated Portal Vein Arterialization in Acute Hepatic Failure
0 Views •
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.
07:21
Measurement of Pulmonary Artery Pressure in Rats Using Right Heart Catheterization
0 Views •
2025
The protocol provides a detailed introduction to the experience of using the right heart catheterization method to detect pulmonary artery pressure in rats, which will help to obtain accurate data more efficiently and improve the success rate of the experiment. This method also improves the reproducibility of experiments across different laboratories.
07:25
Assessing Murine Resistance Artery Function Using Pressure Myography
0 Views •
Cited by 18 •
2013
In pressure myography, an intact small segment of a vessel is mounted onto two small cannulas and pressurized to a suitable luminal pressure. Here, we describe the method to measure vasorelaxation response of the mouse 3rd order mesenteric arteries in c57 and sGCα1-/- mice using pressure myography.
FAQs
Changes in hepatic arterial vessel diameter or resistance beyond the measurement site can modify pressure and the amount of blood reaching liver tissue. Narrowing tends to increase resistance to flow, whereas altered downstream resistance changes the pressure required to maintain perfusion. These relationships help clinicians interpret pressure changes as part of overall liver hemodynamics.
Hepatic artery pressure reflects more than local vessel behavior because arterial inflow is linked to cardiac output. A change in the amount of blood entering the arterial circulation can influence pressure and hepatic perfusion, even when the hepatic artery itself has not undergone a primary structural change. Interpretation therefore requires attention to systemic and local factors.
The hepatic artery cannot be interpreted in isolation because the liver also receives portal venous blood. Changes in arterial flow occur within a dual-supply system, so the significance of a pressure abnormality depends on how arterial and portal contributions relate to one another. This context is important when evaluating whether overall hepatic perfusion is being maintained.
Assessment can help characterize liver hemodynamics by showing how arterial inflow, cardiac output, vascular resistance, and the liver’s dual blood supply interact. In disorders affecting the liver or its circulation, these measurements may support interpretation of altered perfusion. The result is a physiological context for understanding circulatory changes rather than an isolated pressure value.
Hepatic artery pressure becomes relevant when surgery or an interventional procedure involves hepatic vessels. Evaluating the pressure helps clinicians consider whether arterial flow remains adequate for tissue viability and how vascular changes may affect perfusion. This information can contribute to treatment planning, particularly when preserving or modifying hepatic blood supply is part of the procedure.
Pressure assessment provides information about the hemodynamic consequences of altered arterial inflow or downstream resistance. Combined with consideration of portal venous flow, it can help describe the perfusion environment before or during management of liver circulatory disorders. In procedural settings, that information supports decisions aimed at maintaining sufficient blood supply to viable liver tissue.