Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Portal Hypertension01:22

Portal Hypertension

Portal hypertension is an increase in blood pressure within the portal venous system. Normally, this pressure is less than 5 mmHg. It is considered clinically significant when it rises above 10 mmHg. At this threshold, complications from altered blood flow and venous congestion emerge.EtiologyPortal hypertension arises from conditions that impede blood flow through the liver. The most common cause is cirrhosis, in which chronic liver injury leads to fibrotic scarring. This fibrosis narrows or...
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
Sites for measuring blood pressure01:21

Sites for measuring blood pressure

Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Somatostatin receptor PET response assessment framework for patients with neuroendocrine tumours (V1.0): a modified Delphi consensus from the European Neuroendocrine Tumor Society (endorsed by EANM and NANETS).

The Lancet. Oncology·2026
Same author

The clinical utility of functional testing in fibroblasts to diagnose primary mitochondrial disease.

medRxiv : the preprint server for health sciences·2026
Same author

Evaluation of [¹⁸F]AlF-NOTA-octreotide PET/CT in routine clinical use: a retrospective analysis in 288 neuroendocrine tumor patients.

European journal of nuclear medicine and molecular imaging·2026
Same author

Case Report: Twenty years of metreleptin therapy in congenital generalized lipodystrophy type 1: the longest reported follow-up to date.

Frontiers in endocrinology·2026
Same author

Plasma cell-free transcriptome profiling in blood plasma from chronic liver disease patients.

Scientific data·2026
Same author

Screening for acid sphingomyelinase deficiency in patients with an interstitial lung disease.

Orphanet journal of rare diseases·2026

Related Experiment Video

Updated: May 28, 2026

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
07:10

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy

Published on: June 18, 2020

Prospective study comparing different indirect methods to measure portal pressure.

Geert Maleux1, Endry Willems, Steffen Fieuws

  • 1Department of Radiology, University Hospitals Leuven, Leuven, Belgium. geert.maleux@uzleuven.be

Journal of Vascular and Interventional Radiology : JVIR
|October 26, 2011
PubMed
Summary

The occlusion-balloon catheter provides more accurate wedged hepatic venous pressure (WHVP) measurements than the end-hole catheter in cirrhosis patients. However, it may overestimate portal pressure (PP) in those with high Model for End-Stage Liver Disease (MELD) scores.

More Related Videos

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
09:37

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats

Published on: August 1, 2018

Related Experiment Videos

Last Updated: May 28, 2026

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy
07:10

Measurement of the Hepatic Venous Pressure Gradient and Transjugular Liver Biopsy

Published on: June 18, 2020

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats
09:37

Invasive Hemodynamic Characterization of the Portal-hypertensive Syndrome in Cirrhotic Rats

Published on: August 1, 2018

Area of Science:

  • Hepatology
  • Gastroenterology
  • Medical Devices

Background:

  • Portal hypertension is a serious complication of cirrhosis.
  • Accurate measurement of portal pressure (PP) is crucial for managing patients with cirrhosis.
  • Indirect methods like wedged hepatic venous pressure (WHVP) are commonly used but their accuracy varies.

Purpose of the Study:

  • To compare the accuracy of WHVP measurement using end-hole versus occlusion-balloon catheters against direct PP measurement.
  • To identify factors influencing the accuracy of indirect PP measurements in cirrhotic patients.

Main Methods:

  • A cohort of 174 cirrhosis patients undergoing transjugular intrahepatic portosystemic shunt creation was studied.
  • Indirect PP was measured using end-hole and occlusion-balloon catheters in the hepatic vein.
  • Direct PP was measured using a pigtail catheter in the portal vein.

Main Results:

  • The occlusion-balloon catheter technique demonstrated higher accuracy in estimating PP compared to the end-hole catheter.
  • Median absolute differences from direct PP were 2.0 mm Hg for occlusion-balloon and 6.0 mm Hg for end-hole catheters (P < .0001).
  • The occlusion-balloon method overestimated PP in patients with higher Model for End-Stage Liver Disease (MELD) scores (Spearman ρ = -0.24; P = .0005).

Conclusions:

  • Occlusion-balloon catheters offer superior agreement with direct PP measurements compared to end-hole catheters for WHVP.
  • The occlusion-balloon technique's overestimation of PP in high MELD score patients warrants consideration.