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Acid-Base BalanceAVANTINCT00569634

Agreement Between Venous and Arterial Blood Gas Measurements in the Intensive Care Unit

A study testing Venous blood gas analysis in people with Acid-Base Balance, run by Olive View-UCLA Education & Research Institute.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to examine the agreement between venous blood gas and arterial blood gas measurements in patients in the Intensive Care Unit. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Acid-Base Balance
What is being tested?
Venous blood gas analysis
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
40 participants
Where
No sites listed yet
Study dates
Jan 2008to Jul 2008
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Adult patients 18 years or older
  • Admitted to the Intensive Care Unit (ICU)
  • Determined by their treating clinicians to require both a central venous line and arterial line

Who cannot join

  • None

About this study

The purpose of this study is to examine the agreement between venous blood gas and arterial blood gas measurements in patients in the Intensive Care Unit.

Read the detailed description

Venous blood gas analysis may be an alternative to arterial blood gas analysis for acid-base status, reducing the need for frequent invasive arterial sampling. The objective of this study is to examine the agreement between ABG and VBG samples for all commonly used parameters (pH, pCO2 and bicarbonate) in a pathologically diverse ICU patient population, specifically analyzing multiple paired arterial and venous samples from each patient.

Being tested
Venous blood gas analysis
Keywords
Venous blood gas, Arterial blood gas, pH, pCO2, Bicarbonate

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Venous blood gas analysisProcedure or surgery

    When an ABG is deemed to be necessary as part of ICU management, a central venous sample will also be obtained with minimum delay (always < 2 minutes) between the samples. The samples will be analyzed by a blood gas analyzer as quickly as possible.

Study groups in NCT00569634
Study groupRoleWhat they receive
1OtherNot described
Receives: Procedure: Venous blood gas analysis

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Agreement between venous and arterial blood gas measurements of pH, pCO2 and bicarbonate

    Measured: Duration of Intensive Care Unit Admission

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Dec 2007 (estimated)
  2. Study startJan 2008
  3. Primary completionJul 2008
  4. Study completionJul 2008

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
40 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00569634
Sponsor's protocol ID
07H-821001
Acronym
AVANTI
Status last verified
Mar 2021
First submitted
6 Dec 2007
Last updated
15 Mar 2021
Results posted
No
Data monitoring committee
Yes

Publications

  • Mortensen JD. Clinical sequelae from arterial needle puncture, cannulation, and incision. Circulation. 1967 Jun;35(6):1118-23. doi: 10.1161/01.cir.35.6.1118. No abstract available.

    PubMed 6026202
  • Criscuolo C, Nepper G, Buchalter S. Reflex sympathetic dystrophy following arterial blood gas sampling in the intensive care setting. Chest. 1995 Aug;108(2):578-80. doi: 10.1378/chest.108.2.578.

    PubMed 7634906
  • Malinoski DJ, Todd SR, Slone S, Mullins RJ, Schreiber MA. Correlation of central venous and arterial blood gas measurements in mechanically ventilated trauma patients. Arch Surg. 2005 Nov;140(11):1122-5. doi: 10.1001/archsurg.140.11.1122.

    PubMed 16342377
  • Kelly AM, Kyle E, McAlpine R. Venous pCO(2) and pH can be used to screen for significant hypercarbia in emergency patients with acute respiratory disease. J Emerg Med. 2002 Jan;22(1):15-9. doi: 10.1016/s0736-4679(01)00431-0.

    PubMed 11809551
  • Rang LC, Murray HE, Wells GA, Macgougan CK. Can peripheral venous blood gases replace arterial blood gases in emergency department patients? CJEM. 2002 Jan;4(1):7-15. doi: 10.1017/s1481803500006011.

    PubMed 17637143
  • Kelly AM, McAlpine R, Kyle E. Agreement between bicarbonate measured on arterial and venous blood gases. Emerg Med Australas. 2004 Oct-Dec;16(5-6):407-9. doi: 10.1111/j.1742-6723.2004.00642.x.

    PubMed 15537402
  • Kelly AM, McAlpine R, Kyle E. Venous pH can safely replace arterial pH in the initial evaluation of patients in the emergency department. Emerg Med J. 2001 Sep;18(5):340-2. doi: 10.1136/emj.18.5.340.

    PubMed 11559602
  • Ma OJ, Rush MD, Godfrey MM, Gaddis G. Arterial blood gas results rarely influence emergency physician management of patients with suspected diabetic ketoacidosis. Acad Emerg Med. 2003 Aug;10(8):836-41. doi: 10.1111/j.1553-2712.2003.tb00625.x.

    PubMed 12896883
  • Gokel Y, Paydas S, Koseoglu Z, Alparslan N, Seydaoglu G. Comparison of blood gas and acid-base measurements in arterial and venous blood samples in patients with uremic acidosis and diabetic ketoacidosis in the emergency room. Am J Nephrol. 2000 Jul-Aug;20(4):319-23. doi: 10.1159/000013607.

    PubMed 10970986
  • Middleton P, Kelly AM, Brown J, Robertson M. Agreement between arterial and central venous values for pH, bicarbonate, base excess, and lactate. Emerg Med J. 2006 Aug;23(8):622-4. doi: 10.1136/emj.2006.035915.

    PubMed 16858095
  • Chu YC, Chen CZ, Lee CH, Chen CW, Chang HY, Hsiue TR. Prediction of arterial blood gas values from venous blood gas values in patients with acute respiratory failure receiving mechanical ventilation. J Formos Med Assoc. 2003 Aug;102(8):539-43.

    PubMed 14569318
  • Brandenburg MA, Dire DJ. Comparison of arterial and venous blood gas values in the initial emergency department evaluation of patients with diabetic ketoacidosis. Ann Emerg Med. 1998 Apr;31(4):459-65. doi: 10.1016/s0196-0644(98)70254-9.

    PubMed 9546014
  • Ak A, Ogun CO, Bayir A, Kayis SA, Koylu R. Prediction of arterial blood gas values from venous blood gas values in patients with acute exacerbation of chronic obstructive pulmonary disease. Tohoku J Exp Med. 2006 Dec;210(4):285-90. doi: 10.1620/tjem.210.285.

    PubMed 17146193
  • Malatesha G, Singh NK, Bharija A, Rehani B, Goel A. Comparison of arterial and venous pH, bicarbonate, PCO2 and PO2 in initial emergency department assessment. Emerg Med J. 2007 Aug;24(8):569-71. doi: 10.1136/emj.2007.046979.

    PubMed 17652681

Questions about this trial

What is this clinical trial studying?

A study testing Venous blood gas analysis in people with Acid-Base Balance, run by Olive View-UCLA Education & Research Institute.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 15 Mar 2021. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Agreement between venous and arterial blood gas measurements of pH, pCO2 and bicarbonate (time frame: Duration of Intensive Care Unit Admission). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00569634, which also lists 14 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 15 Mar 2021.

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