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Estimation of Internal Jugular Vein Central Venous Pressure (CVP) by Ultrasound

This study has been completed.
Information provided by:
Mahidol University Identifier:
First received: May 15, 2009
Last updated: July 21, 2011
Last verified: July 2011


  1. To study the validity and reliability of estimation of the central venous pressure by measurement of internal jugular vein size using 2-dimensional ultrasound.
  2. To evaluate the correlation of internal jugular vein cross sectional area and central venous pressure.


  1. The study design is prospective observational study.
  2. We will include all patients scheduled for cardiac surgery in Siriraj Hospital and record both internal jugular size using 2-dimensional ultrasound just before central venous catheter insertion. The central venous pressure will be recorded and the ultrasound picture will be measured.
  3. The data will be analyzed.

Internal Jugular Size Measured by Ultrasound
Central Venous Pressure

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Validity and Reliability of Non-invasive Estimation of Central Venous Pressure by Measurement of Internal Jugular Size Using 2-dimensional Ultrasound

Resource links provided by NLM:

Further study details as provided by Mahidol University:

Primary Outcome Measures:
  • internal jugular size [ Time Frame: 1 day ]

Enrollment: 130
Study Start Date: May 2009
Study Completion Date: March 2010
Primary Completion Date: March 2010 (Final data collection date for primary outcome measure)
internal jugular cross sectional area measured by ultrasound


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
patients scheduled for cardiac surgery in Siriraj Hospital

Inclusion Criteria:

  • patients scheduled for cardiac surgery
  • need central venous catheterization intraoperatively
  • elective surgery
  • age > 18

Exclusion Criteria:

  • neck pathology
  • history of internal jugular or SVC thrombosis
  • limited neck mobility
  • severe valvular lesion
  • decompensated heart failure
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Please refer to this study by its identifier: NCT00904358

Faculty of Medicine, Siriraj Hospital
Bangkok, Thailand, 10700
Kasana Raksamani
Bangkok, Thailand, 10700
Sponsors and Collaborators
Mahidol University
Principal Investigator: Kasana Raksamani, MD Mahidol University
  More Information

Responsible Party: Kasana Raksamani, Faculty of Medicine, Siriraj Hospital Identifier: NCT00904358     History of Changes
Other Study ID Numbers: Si183/2009
Study First Received: May 15, 2009
Last Updated: July 21, 2011

Keywords provided by Mahidol University:
internal jugular vein
cross sectional area
central venous pressure processed this record on May 24, 2017