Hajashareef, H M (2015) A Comparative Study of Ropivacaine 0.5% and Ropivacaine 0.5% with Dexmedetomidine 50μg in Ultrasound Guided Supraclavicular Brachial plexus Block for Upper limb Orthopedic Surgery. Masters thesis, Kilpauk Medical College, Chennai.
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Abstract
BACKGROUND AND OBJECTIVES: Evaluated the effect of adding dexmeditomidine 50μg to ropivacaine 0.5% for supraclavicular brachial plexus block. The primary end points were the onset and the duration of sensory and motor block and duration of analgesia. METHODS: 50 ASA I and II patients scheduled for elective mid humerus, forearm, hand surgery were divided into 2 equal groups in a randomized double blind fashion. In group R (n=25), 30ml of 0.5% ropivacaine +1 ml saline and in group RD (n=25), 30ml of 0.5% ropivacaine +1ml (½ml of dexmeditomidine 50μg mix with 1/2ml of saline) were given. Onset time of sensory and motor block, duration of sensory and motor block and duration of analgesia were recorded. RESULTS: Demographic parameters were comparable in both groups. Onset time of Sensory and motor block were shorter in group RD than in group R (P=0.001). Duration of Sensory and motor blockade were longer in group RD than in group R (P=0.001). Duration of analgesia was longer in group RD than in group R (P=0.001). Systolic blood pressure levels in group RD at 15, 30, 45, 60, 90, 120, 180, 240, 300 minutes were significantly lower than those in group R (P=0.001). Diastolic blood pressure levels in group RD at 15, 30, 45, 60, 90, 120, 180, 240, 300 minutes were significantly lower than those in group R (P=0.001). Heart rate levels in group RD except basal measurements were significantly lower than those in group R (P=0.001). CONCLUSIONS: Dexmedetomidine when added to ropivacaine for brachial plexus block shortens the onset time and prolongs the duration of the block and the duration of postoperative analgesia.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Dexmedetomidine ; Ropivacaine ; Ultrasound ; Supraclavicular Brachial Plexus Block. |
| Subjects: | MEDICAL > Anaesthesiology |
| Depositing User: | Punitha K |
| Date Deposited: | 07 May 2018 04:25 |
| Last Modified: | 08 May 2018 03:51 |
| URI: | http://repository-tnmgrmu.ac.in/id/eprint/7585 |
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