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OpenTrials
Completed

NCT Number: NCT03405623

Dynamic SAX vs Conventional LAX in Radial Artery Cannulation.

When performing vascular cannulation such as radial artery cannulation, ultrasonography (US) helps proper positioning of the tip of needle in the vascular lumen, which facilitating cannulation of the catheter and successful pressure monitoring. Conventionally, short-axis out-of-plane (SAX) and long-axis in-plane (LAX) views are commonly used method to image the target vessel during cannulation under US guidance. Dynamic needle tip positioning (DNTP) method is newly introduced by one group of investigators who conducted a related study using vascular phantom model.

In DNTP, SAX is used, and additionally, when the needle tip is imaged in the screen as an echogenic point, the practitioner (a) proximally moves the US probe a bit, and then (b) the needle is advanced until the needle tip reappears in the screen. In this manner, the practitioner repeats (a) and (b) until the needle is inserted 1 cm into the lumen of vessel, and then the catheter is inserted to finish the procedure.

DNTP has not been compared to conventional imaging methods. The aim of this trial is to see the effect of DNTP on success rate of the radial artery cannulation at the first attempt, compared to the conventional LAX.

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Key information

Conditions

Cardiac Surgical Procedures Catheterization Ultrasonography

Age range

19 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Seoul National University Hospital

Seoul, 03080, South Korea

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Elective cardiovascular surgery where RA catheterization is newly required.

Exclusion criteria

  • skin infection or trauma
  • Bilateral arteriovenous fistula for dialysis
  • Severe peripheral vascular disease
  • Severe arteriosclerosis or arterial atheroma
  • Raynaud disease
  • Shock
  • Patients on ECMO or IABP support
  • Morbid obesity
  • Profound coagulopathy
  • Negative results of modified Allen's test

Treatment and study plan

Dynamic needle tip positioning under ultrasound-guidance

Procedure

The tip of needle is positioned under ultrasound-guidance using dynamic short-axis view.

Conventional long-axis view

Procedure

The tip of needle is positioned under ultrasound-guidance using conventional long-axis in-plane view.

Primary outcomes

  1. Success rate of the radial artery cannulation at first attempt

    Time frame: intraoperative

    Successful confirmation of the arterial waveform through a pressure monitor at first attempt of the radial artery cannulation

Secondary outcomes

  1. Time between skin puncture to confirmation of the arterial waveform through a pressure monitoring device.

    Time frame: During the cannulation procedure.

Sponsors and collaborators

Lead sponsor

Seoul National University Hospital

Other

Registry information

Official study title

Randomized Trial of Ultrasound-guided Radial Artery Cannulation Using Dynamic Short Axis Versus Conventional Long-axis In-plane View in Cardiac Surgery Patients.

Important dates

Study start
2018
Primary completion
2018
Study completion
2018
First posted
Jan 23, 2018
Registry last updated
Sep 20, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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