Diffficult venous access - cannulation procedure Not Applicable
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Emergency department patients aged 18 and over 2. Able to provide informed consent 3. Requiring venous cannulation 4. Has had a first attempt failed cannulation within the emergency department during this attendance 5. The patient has an appropriate site for cannulation in the upper limbs in the opinion of the investigator
Exclusion criteria
Exclusion criteria: 1. In the opinion of the investigator the patient has a contra-indication to use of tourniquet or blood pressure cuff (for example a low platelet count causing bruising) 2. Critically ill patients who need emergent IV access 3. Small cannula being used on patient – ie 22 gauge (blue) and smaller
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Success rate of venous cannulation, measured by recording the tourniquet (Vacuderm or control tourniquet) used and whether the cannulation attempt was successful | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Safety: an inspection of the tourniquet site will be carried out after 30 minutes and any adverse events will be recorded in the case report form 2. User acceptability, recorded on the case report form, whether cannulation was successful or not 3. Patient/participant satisfaction, measured using a visual analogue scale (VAS) 4. Cannula size, recorded on the case report form for the first failed attempt at cannulation and the cannula size will again be recorded after randomisation for the second attempt 5. Provisional diagnosis, recorded by the trained delegate on the case report form 6. Potassium levels - haemolysis, recorded by the trained delegate on the case report form All measured at a single timepoint | — |
Countries
United Kingdom