Comparing the use of a needle guidance device with free-handtechnique in performing ultrasound-guided transversus abdominis plane (TAP) blocks: aprospective randomized trial.
Completed
- Conditions
- Major abdominal surgery requiring transversus abdominis plane block.Anaesthesiology - AnaestheticsAnaesthesiology - Other anaesthesiology
- Registration Number
- ACTRN12613000392763
- Lead Sponsor
- Royal Melbourne Hospital
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Completed
- Sex
- All
- Target Recruitment
- 20
Inclusion Criteria
Patients must be aged 18 years or over, must be undergoing open abdominal surgery, and are scheduled for bilateral, single shot, ultrasound guided in-plane TAP blocks administered during general anaesthesia at the completion of surgery.
Exclusion Criteria
Patients who are unable (due to an intellectual disability, cognitive deficit or language barrier) or unwilling to consent, who have a contraindication to undergoing TAP blocks (coagulopathy, local skin infection, allergy to ropivacaine or planned administration of large volume local anaesthetic by another route [e.g. epidural]) or who will not be available for assessment postoperatively (i.e. ventilated patients) will be excluded.
Study & Design
- Study Type
- Interventional
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Proportion of needle visibility - the ratio of time that the needle was completely visualised by ultrasound throughout the procedure will be recorded. The ratio of this time to the overall procedural time (see below) will be calculated.[Ultrasounds are recorded at time of procedure.];Total procedural time - the time taken from needle insertion to successful injection of local anaesthetic in the transversus abdominis plane.[At time of procedure.]
- Secondary Outcome Measures
Name Time Method Proceduralist’s satisfaction score - proceduralists will be asked to rank their satisfaction with both techniques on a scale from 0 (lowest score: completely dissatisfied) to 10 (best score: completely satisfied).[At time of procedure.];Dermatomal blockade - sensory assessment (using pinprick and ice) will be conducted by a blinded observer in the post-anaesthesia care unit.[Baseline, and at 30 minutes after procedure.]