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Impact of Local Anesthetic Concentration-Volume Modifications on Ultrasound Guided Infraclavicular Nerve Block Effectiveness
This prospective, randomized, double blind study aims to determine the optimal volume for adequate sensorial and motor blockade following an infraclavicular block. Patients will be randomized into three groups. Using a constant dose of local anesthetics (45mg bupivacaine 180mg prilocaine), different volumes will be used in each of the groups (First group; 18mL, second group; 27mL, third group; 36mL). Onset, duration and quality of sensory and motor block will be compared for patients between groups
Details
| Lead sponsor | Bozyaka Training and Research Hospital |
|---|---|
| Phase | Phase 4 |
| Status | COMPLETED |
| Enrolment | 81 |
| Start date | 2016-06 |
| Completion | 2016-10 |
Conditions
- Brachial Plexus Blockade
Interventions
- Bupivacaine 0.25%
- Prilocaine 1%
- Infraclavicular Nerve Block
- Bupivacaine 0.167%
- Bupivacaine 0.125%
- Prilocaine 0.66%
- Prilocaine 0.5%
- Ultrasound
Primary outcomes
- Sensory Block, as assessed by hollman scale for pinprick test — 0, 3rd, 6th, 9th, 12th, 20th, 25th, 30th minute
Sensorial response to pinprick will be assessed at innervation sites of ulnar median radial and musculocutaneous nerves. Innervation sites of assessment are volar skin of the fifth finger for ulnar nerve, volar skin of second finger for median nerve and dorsal, proximal of the second finger for radial nerve and skin of the anterolateral forearm for musculocutaneous nerve. - Motor Block, as assessed by hollman scale for motor blockade — 0, 3rd, 6th, 9th, 12th, 20th, 25th, 30th minute
Motor function for each nerve will be assessed. Movements to be evaluated are; abduction of the fingers for ulnar nerve, thumb opposition for median nerve, extension of the forearm for radial nerve and flexion of the forearm for musculocutaneous nerve. - Postoperative Sensory Block, as assessed by hollman scale for pinprick test — 1th hour in PACU
- Postoperative Motor Block, as assessed by hollman scale for motor blockadet — 1th hour in PACU
Countries
Turkey (Türkiye)