Brachial Plexus nerve block has many potential benefits, including optimal pain control, reduced use of opioids, and facilitation of early discharge after ambulatory procedures.(McCarteny et al., 2004)
Successful brachial Plexus blocks rely on proper techniques of nerve localization, needle placement and local anesthetic injection Ultrasound imaging can help localize the brachial plexus accurately and guide needle advancement to the target nerves. This study examines the technique and clinical usefulness of state-of-the-art ultrasound technology for supraclavicular brachial plexus 1-Group I (n = 30): patients were given a total 20 cc solution consisting of 19 cc bupivacaine 0.5% with 1 cc of isotonic sodium chloride solution.
2- Group II (n = 30)Patients in this group received 20 cc solution consisting of 19cc bupivacaine 0.5% with a 1cc volume of 1ug/kg dexmedetomidine(Dexmedetomidine hydrochloride (Precedex®, supplied in 100 μg/mLmanufactured by Hospira, Inc. Lake Forest, IL, USA)plus normal saline (S group)
As regards comparing heart rate between both groups, current study showed a significant lower heart rate values in group II at 15 minutes, 30min, 45min,60min, and 120min from bolus dose injection, compared to group I
As regards comparing mean arterial blood pressure (MAP) between both groups current study showed a significant lower MAP values in group II at 15 min , 30min ,45min, 60min, and 120min from bolus dose injection
There is a highly significant difference between both groups as regarding sensory block onset and duration; motor block onset and duration and duration of analgesia There is a highly significant difference between both groups at 6 hours,8 hours and 10 hours
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