Other Clinical Trial - Arterial Cannulation With Ultrasound

Status Recruiting

Clinical Trial Summary

A drop in blood pressure during anaesthesia for a surgical procedure has been associated with worse patient outcomes, including complications such as damage to the heart, brain and kidneys. Continuous blood pressure monitoring prior to the start of anaesthesia alerts the anaesthetist to drops in blood pressure and allows this to be treated promptly. This may help to avoid the complications described above. Continuous blood pressure monitoring is carried out by inserting a small plastic tube (cannula) into an artery. In this study, the investigators propose inserting a cannula into the radial artery in the wrist before a patient is anaesthetised for surgery. The usual technique for insertion of this cannula is for the anaesthetist to identify the site of the radial artery by feeling for an arterial pulse with the fingertips (palpation). An alternative technique for identification is to use ultrasound. Ultrasound creates a two-dimensional image of the area under the skin on a screen, enabling the operator to visualise the artery being targeted. This may reduce the number of cannulation attempts required, reducing patient discomfort.

Clinical Trial Description

The investigators will test whether ultrasound guidance improves the success rate of radial artery cannulation, compared to palpation alone, in a randomised controlled trial in an NHS hospital. Patients will be over 45 years old, undergoing general or neuraxial anaesthesia for non-cardiac surgery lasting 120 minutes or more. Patients will be randomly assigned to a palpation or ultrasound-guided technique for arterial cannulation. Patients will receive numbing local anaesthetic cream to the area beforehand. A needle is used to introduce the cannula into the artery. There will be a maximum of one attempt allowed. In addition to measuring success rate, we will also compare whether the successfully sited cannula provides an adequate arterial waveform, requires resiting at any point during the surgery and any complications which arise directly related to arterial catheterisation. Patients will receive standard anaesthetic and surgical care in all other respects. ;

Study Design

Related Conditions & MeSH terms

Perioperative/Postoperative Complications
Postoperative Complications

Clinical Trial Details

NCT number	NCT05249036
Study type	Interventional
Source	Queen Mary University of London
Contact	Valerie Lan-Pak-Kee
Phone	02035941328
Email	vlan@nhs.net
Status	Recruiting
Phase	N/A
Start date	May 25, 2022
Completion date	June 2025

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Arterial Cannulation With Ultrasound — ArCanUS

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms