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Peripheral Venous CatheterizationNCT07683611

Short-Axis Versus Long-Axis Ultrasound-Guided Peripheral IV Cannulation in Adults

A study testing Short-Axis Out-of-Plane Ultrasound-Guided Cannulation and Long-Axis In-Plane Ultrasound-Guided Cannulation in people with Peripheral Venous Catheterization, run by Lady Reading Hospital, Pakistan at 1 site in Pakistan.

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

This randomized study compared two ultrasound-guided techniques for placing a peripheral intravenous cannula in adults aged 20 to 60 years who required intravenous access. Participants were assigned equally to either the short-axis out-of-plane approach or the long-axis in-plane approach. Read more about this study

Who is it for?
Ages 20 to 60 years
Conditions the study is for
Peripheral Venous Catheterization
What is being tested?
Short-Axis Out-of-Plane Ultrasound-Guided Cannulation and Long-Axis In-Plane Ultrasound-Guided Cannulation
Could I receive a placebo?
No, everyone receives an active treatment
How many people
222 participants
Where
1 sitePakistan
Study dates
7 Nov 2023to 7 May 2024
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 20 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Men and women aged 20 to 60 years
  • Required peripheral intravenous access

Who cannot join

  • Body mass index of 30 kg/m² or greater
  • Infection at the intended cannulation site
  • Upper-limb deformity
  • Previous venous thrombosis
  • Refusal to participate

Trial locations and contacts

1 site in 1 country.

Pakistan1 site
  • Medical Teaching Institution-Lady Reading Hospital

    Peshawar, Khyber Pakhtunkhwa

Other trials in Pakistan

About this study

Official title: Comparison of Short-Axis Versus Long-Axis Approach for Ultrasound-Guided Peripheral Intravenous Cannulation: A Randomized Controlled Trial

This randomized study compared two ultrasound-guided techniques for placing a peripheral intravenous cannula in adults aged 20 to 60 years who required intravenous access. Participants were assigned equally to either the short-axis out-of-plane approach or the long-axis in-plane approach. The study evaluated whether the techniques differed in successful cannulation. It also compared cannulation time, number of attempts, and immediate complications, including arterial puncture, extravasation, and haematoma.

Read the detailed description

This single-centre, parallel-group randomized controlled trial was conducted in the Department of Anaesthesiology at Medical Teaching Institution-Lady Reading Hospital, Peshawar, Pakistan.

A total of 222 eligible adults requiring peripheral intravenous access were enrolled through consecutive sampling. Participants were randomized in a 1:1 ratio using a computer-generated sequence. In the short-axis group, the ultrasound probe was positioned perpendicular to the target vein to obtain a transverse image, and the needle was advanced using an out-of-plane technique. In the long-axis group, the probe was positioned parallel to the vein to obtain a longitudinal image, and the needle was advanced in plane while maintaining visualization of the needle tip. Experienced anaesthesiologists performed all procedures.

Cannulation was considered successful when the catheter advanced without resistance, blood returned freely into the hub, and saline could be flushed without local swelling. The primary outcome was successful peripheral intravenous cannulation. Secondary outcomes included cannulation time, number of attempts, and immediate complications comprising arterial puncture, extravasation, and haematoma. No delayed follow-up outcomes were assessed.

Being tested
Short-Axis Out-of-Plane Ultrasound-Guided Cannulation, Long-Axis In-Plane Ultrasound-Guided Cannulation
Keywords
Ultrasound-Guided Peripheral Intravenous Cannulation, Short-Axis Out-of-Plane Approach, Long-Axis In-Plane Approach, Peripheral Intravenous Access, Interventional Ultrasonography

What participants receive

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

  • Short-Axis Out-of-Plane Ultrasound-Guided CannulationProcedure or surgery

    The ultrasound probe was positioned perpendicular to the target vein to obtain a transverse image. A peripheral intravenous cannula was inserted by advancing the needle using the out-of-plane technique under real-time ultrasound guidance.

  • Long-Axis In-Plane Ultrasound-Guided CannulationProcedure or surgery

    The ultrasound probe was positioned parallel to the target vein to obtain a longitudinal image. A peripheral intravenous cannula was inserted by advancing the needle in plane while maintaining visualization of the needle tip under real-time ultrasound guidance.

Study groups in NCT07683611
Study groupRoleWhat they receive
Short-Axis Out-of-Plane ApproachExperimentalParticipants underwent ultrasound-guided peripheral intravenous cannulation with the probe positioned perpendicular to the target vein to obtain a transverse image. The needle was advanced using an out-of-plane technique.
Receives: Procedure: Short-Axis Out-of-Plane Ultrasound-Guided Cannulation
Long-Axis In-Plane ApproachActive comparatorParticipants underwent ultrasound-guided peripheral intravenous cannulation with the probe positioned parallel to the target vein to obtain a longitudinal image. The needle was advanced in plane while maintaining visualization of the needle tip.
Receives: Procedure: Long-Axis In-Plane Ultrasound-Guided Cannulation

What is being measured

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

  1. Successful Peripheral Intravenous Cannulation

    Cannulation was considered successful when the catheter advanced without resistance, blood returned freely into the hub, and saline could be flushed without local swelling. The outcome was recorded as successful or unsuccessful.

    Measured: Immediately following the assigned cannulation procedure

Secondary outcomes (1)
  1. Cannulation Time

    Time required to achieve successful peripheral intravenous cannulation, measured in seconds.

    Measured: uring the assigned cannulation procedure

Timeline

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

  1. First posted6 Jul 2026
  2. Study start7 Nov 2023
  3. Primary completion7 May 2024
  4. Study completion7 May 2024

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Model description
Participants were randomly assigned in a 1:1 ratio to one of two parallel groups. One group received ultrasound-guided peripheral intravenous cannulation using the short-axis out-of-plane approach, while the other received the long-axis in-plane approach. Each group included 111 participants.
Masking
None (open label)
Enrolment
222 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07683611
Sponsor's protocol ID
962/LRH/MTI
Status last verified
Jun 2026
First submitted
28 Jun 2026
Last updated
6 Jul 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A study testing Short-Axis Out-of-Plane Ultrasound-Guided Cannulation and Long-Axis In-Plane Ultrasound-Guided Cannulation in people with Peripheral Venous Catheterization, run by Lady Reading Hospital, Pakistan at 1 site in Pakistan.

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 2 inclusion and 5 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 6 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Pakistan. Whether a site is taking part right now should be confirmed with that site. See every site.

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?

Successful Peripheral Intravenous Cannulation (time frame: Immediately following the assigned cannulation procedure). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 6 Jul 2026; AzTrials last refreshed its copy on 6 Nov 2026.

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