Dynamic Needle Tip Positioning Modification Technique in Short Axis Approach

NCT06422195 | Completed

• 1 other identifier: 36197/12/22
• Study Type: interventional
• Target: 164
• Locations: 1 country
• Sites: 1

Brief Summary

The aim of the present study is to compare between Dynamic Needle Tip Positioning Modification Technique in Short Axis Approach (DNTP - SA) and Long Axis (LA) Approach for Ultrasound-guided Arterial Cannulation as regard time to successful arterial cannula insertion as well as the success rate in the first trial of insertion, number of attempts till successful arterial line placemen, complications, and operators' satisfaction.

Conditions

Dynamic Needle Tip Positioning; Short Axis; Arterial Cannulation; Long Axis

Outcome Measures

Primary Outcomes (1)

• Time to achieve successful cannulation

  Time to achieve successful cannulation will be measured from initial skin puncture until the catheter is placed into the radial artery.

  Immediately after catheterization

Secondary Outcomes (4)

• The success rate

  Immediately after catheterization

• Number of attempts till successful arterial cannula insertion

  Immediately after catheterization

• Incidence of complications

  24 hours postoperatively

• Operators' satisfaction

  Immediately after catheterization

Study Arms (2)

Dynamic Needle Tip Positioning Technique in Short Axis Approach (DNTP - SA)

EXPERIMENTAL

Ultrasound guided radial artery cannulation by Dynamic Needle Tip Positioning Technique in Short Axis Approach (DNTP - SA) will be performed by an experienced anesthesiologist who has no subsequent role in the study. The ultrasound transducer is oriented transversely to the radial artery at the wrist, and the vessel appears as a circular anechoic structure in the ultrasound screen with gradual advancing of the needle till reaching the radial artery. Meanwhile, the ultrasound probe is being moved proximally in advance of the needle tip until it disappears from the ultrasound image. The cannula then advanced in the direction of the artery.

Other: Dynamic Needle Tip Positioning Technique in Short Axis Approach (DNTP - SA)

Long Axis Approach (LA)

ACTIVE COMPARATOR

Ultrasound guided radial artery cannulation in Long Axis Approach (LA) will be performed by an experienced anesthesiologist who has no subsequent role in the study. In the LA-IP approach, an ultrasound probe is placed parallel to the radial artery and the artery appears as a tubular anechoic structure in ultrasound.

Other: Long Axis Approach (LA)

Interventions

Dynamic Needle Tip Positioning Technique in Short Axis Approach (DNTP - SA) OTHER

Ultrasound guided radial artery cannulation by Dynamic Needle Tip Positioning Technique in Short Axis Approach (DNTP - SA) will be performed by an experienced anesthesiologist who has no subsequent role in the study. The ultrasound transducer is oriented transversely to the radial artery at the wrist, and the vessel appears as a circular anechoic structure in the ultrasound screen with gradual advancing of the needle till reaching the radial artery. Meanwhile, the ultrasound probe is being moved proximally in advance of the needle tip until it disappears from the ultrasound image. The cannula then advanced in the direction of the artery.

Dynamic Needle Tip Positioning Technique in Short Axis Approach (DNTP - SA)

Long Axis Approach (LA) OTHER

Ultrasound guided radial artery cannulation in Long Axis Approach (LA) will be performed by an experienced anesthesiologist who has no subsequent role in the study. In the LA-IP approach, an ultrasound probe is placed parallel to the radial artery and the artery appears as a tubular anechoic structure in ultrasound.

Long Axis Approach (LA)

Eligibility Criteria

• Age: 18 Years - 70 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)

You may qualify if:

• Age between 18 and 70 years.
• Both sexes.
• American Society of Anesthesiologists physical status II-IV.
• Patients scheduled for elective surgery procedure that requires the use of invasive arterial pressure monitoring, as determined by the attending anesthesiologist.

You may not qualify if:

• Emergency patients or with Hemodynamic instability.
• Patients who have cellulitis or infection at the site of insertion.
• Patients with a positive modified Allen test.
• Raynaud disease or any Peripheral vascular disease.
• Patients with Multiple previous radial artery interventional therapies in the previous 30 days.
• Patients scheduled for Surgery at site of insertion like forearm flap.
• Refusal to participate by the patient.

Sponsors & Collaborators

• Tanta University: lead

Study Sites (1)

Tanta University

Tanta, El-Gharbia, 31527, Egypt

Location

Related Publications (1)

• Elmazny MI, Ahmed S, Afifi S. Dynamic needle tip positioning in short-axis versus long-axis ultrasound-guided arterial cannulation: a randomised controlled trial. BMC Anesthesiol. 2025 Nov 14;25(1):561. doi: 10.1186/s12871-025-03413-3.

  PMID: 41239242 DERIVED

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: DOUBLE
• Who Masked: PARTICIPANT, OUTCOMES ASSESSOR
• Purpose: OTHER
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer of Anesthesiology, Surgical Intensive Care and Pain Medicine, Faculty of Medicine, Tanta University, Tanta, Egypt.

Study Record Dates

• First Submitted: May 14, 2024
• First Posted: May 20, 2024
• Study Start: May 19, 2024
• Primary Completion: December 31, 2024
• Study Completion: December 31, 2024
• Last Updated: April 10, 2025

Record last verified: 2025-04

Data Sharing

• IPD Sharing: Will share
• Shared Documents: STUDY PROTOCOL
• Time Frame: After the end of study for one year.
• Access Criteria: The data will be available upon a reasonable request from the corresponding author.

Locations

EG (1)