A Randomized Study Evaluating the Role of Ultra-sound Guidance When Drawing Radial Arterial Blood Samples

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

74 participants

Study Classification

INTERVENTIONAL

Study Start Date

2014-02-21

Study Completion Date

2016-06-08

Brief Summary

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Previous studies have demonstrated that an experienced ultrasound operator is able to efficiently perform radial arterial puncture on patients where an initial operator failed to puncture arteries via simple palpation.

The objective of this study is to compare "difficult-to-puncture" patients randomized into two groups: one group where ultrasound is used to aid artery localisation, and one group where only palpation is used.

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Detailed Description

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Conditions

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Radial Artery Ultrasonography

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Palpation only

Patients randomized to this arm will have radial artery puncture via palpation of arteries.

Intervention: RAP palpation only

Group Type ACTIVE_COMPARATOR

RAP palpation only

Intervention Type PROCEDURE

Skin disinfection by local antiseptic. Identification of the radial artery by palpation. Insertion of the needle positioned at 70 ° with regard to the artery palpated. Check the rise of arterial blood in the syringe.

Ultrasound guidance

Patients randomized to this arm will have radial artery puncture with ultrasound guidance for artery localisation.

Intervention: RAP with ultrasound guidance

Group Type EXPERIMENTAL

RAP with ultrasound guidance

Intervention Type PROCEDURE

Skin disinfection by local antiseptic. Application of sterile gel. Identification of the artery via ultrasound vascular probe. Center the artery at the center of the screen. Introduction of the syringe at 70 ° with respect to the probe, in center of visualized zone. Check the rise of arterial blood in the syringe.

Interventions

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RAP palpation only

Skin disinfection by local antiseptic. Identification of the radial artery by palpation. Insertion of the needle positioned at 70 ° with regard to the artery palpated. Check the rise of arterial blood in the syringe.

Intervention Type PROCEDURE

RAP with ultrasound guidance

Skin disinfection by local antiseptic. Application of sterile gel. Identification of the artery via ultrasound vascular probe. Center the artery at the center of the screen. Introduction of the syringe at 70 ° with respect to the probe, in center of visualized zone. Check the rise of arterial blood in the syringe.

Intervention Type PROCEDURE

Other Intervention Names

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Radial artery puncture via palpation of arteries only radial artery puncture with ultrasound guidance.

Eligibility Criteria

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Inclusion Criteria

* The patient must have given his/her informed and signed consent
* The patient must be insured or beneficiary of a health insurance plan
* The patient's health status necessitates an arterial blood sample AND his/her radial arteries are deemed unpalpable OR two previous attempts at radial arterial puncture by a nurse resulted in failure

Exclusion Criteria

* The patient is participating in another study
* The patient is in an exclusion period determined by a previous study
* The patient is under judicial protection, or any kind of guardianship
* The patient refuses to sign the consent
* It is impossible to correctly inform the patient
* The patient is pregnant, parturient, or breastfeeding
* Arterial puncture is required on femoral, humeral or axillary arteries
* The patient is in cardiac arrest
* The patient has known circulatory problems, ischemia, local infection
* The patient has a severe bleeding or hemostasis disorder (hemophilia, hypoprothrombinemia, platelets \<50,000)
* The patient is an upper limb amputee, or his/her arm is in a cast
* The patient has known allergies to methyl or propylbenzoate, propylene glycol or chlorexhidine gluconate

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No