Radial Artery, Ultrasonography
Conditions
Brief summary
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.
Detailed description
test
Interventions
PROCEDURERAP 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.
PROCEDURERAP 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.
Sponsors
Centre Hospitalier Universitaire de Nīmes
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Only one attempt at arterial puncture was necessary (yes/no) | Day 0 - end of procedure |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Length of time necessary for the procedure | Day 0 - end of procedure | — |
| Presence/absence of complications | Day 0 - end of procedure | Presence/absence of complications including hematoma, nerve injury, vagal reaction, pseudo-aneurysm. |
| Patient satisfaction | Day 0 - end of procedure | Patient satisfaction is evaluated using a visual analog scale. |
| Number of skin punctures | Day 0 - end of procedure | — |
| Patient pain evaluation | Day 0 - end of procedure | Patients are asked to evaluate the experienced pain level using a visual analog scale. |
| The number of catheters used | Day 0 - end of procedure | — |
| Was additional assistance necessary? yes/no | Day 0 - end of procedure | — |
| Operator satisfaction | Day 0 - end of procedure | Operator satisfaction is estimated using a visual analog scale. |
Countries
France
Outcome results
None listed