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Patients were randomly allocated into Two equal study groups each contain (40) patients : Patients in Group A received supraclavicular block using 25mL of 0. 5% bupivacaine and 1 mL normal saline and patients in Group B received 25 mL 0. 5% bupivacaine and 1 mL neostigmine (0.5 mg).
The investigators found that neostigmine when used as an adjuvant to bupivacaine in ultrasound guided supraclavicular brachial plexus block has advantage over bupivacaine alone especially in the quality of sensory block and provide safe and effective post-operative analgesia in patients undergoing forearm surgeries
All patients were assessed with regards to:
Hemodynamics (heart rate, Bp) and oxygen saturation were recorded preoperatively just before the block as a baseline value, immediately after the block 5, 20, 30,40,45 , 60 minutes during the operative time and 1, 2, 4, 6, 9 and 12 hours after end of operation.
Onset time of sensory block, Onset time of motor block, Duration of sensory block, and Duration of motor block.
Pain assessment using a scoring system based on the visual analogue pain scale(VAS) measured at the following time intervals 0, 2, 4, 6, 9, 12 and 24 post operatively, time to first analgesic requirement (in hours) and total analgesic consumption was monitored in the two groups for 24 hours in ward.
The incidence of adverse effects whether related to the drugs used in the technique or related to the technique itself were recorded.
The results of this study found that demographic (age, sex, weight and ASA classification and surgical duration were statistically insignificant between the two groups.
Hemodynamics (HR and Bp) were statistically significant between the groups .They were lower in Neostigmine groups.
As regard onset of sensory and motor block were clinically and significantly earlier in group B than group A ( p < 0,05) and the same for duration of sensory and motor block were clinically and significantly longer in group B than in group A ( P < 0,05 ). Regarding Visual Analogue Pain Scale (VAS), while comparing the two groups, the differences were significant at 9 and 12 hours after surgery for the favor of the neostigmine groups . The time to first analgesic request was significantly longer in group B than group A.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Control group | Placebo Comparator | This group received supraclavicular block using 25mL of 0. 5% bupivacaine and 1 mL normal saline |
|
| Neostigmine group | Active Comparator | This group received 25 mL 0. 5% bupivacaine and 1 mL neostigmine (0.5 mg) |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| ultrasound- guided supraclavicular brachial plexus block | Procedure | Patient lie down supine with head turned 45 degrees to the contralateral side and ipsilateral arm adducted gently by the assistant and the shoulder kept down with flexed elbow. After sterile preparation of the skin and the ultrasound probe (12 MHz probe) were used, the brachial plexus was visualized by placing the transducer in the sagittal plane in the supraclavicular fossa behind the middle-third of the clavicle. Two distinct appearances of the brachial plexus was seen at the supraclavicular region, it either appeared as 3 hypoechoic circles with hyperechoic outer rings or as a grape like cluster of 5 to 6 hypoechoic circles, located lateral and superior to the subclavian artery between the anterior and middle scalene muscles at the lower cervical region figure |
| Measure | Description | Time Frame |
|---|---|---|
| The onset of sensory blockade | Onset time for sensory block was defined as the time interval between the end of local anesthetic administration untill complete sensory block by minutes | Every 2 minutes for 30 minutes |
| The onset of motor blockade | Onset time for motor block was defined as the time interval between the end of local anesthetic administration until complete motor block by minutes | Every 2 minutes for 30 minutes |
| Duration of sensory blockade | Duration of sensory block was defined as the time interval between the complete sensory block and complete resolution of anesthesia on all the nerves by hours | Every 1 hour for 24 hours |
| Duration of motor blockade | the time interval from complete motor block to complete recovery of motor function of hand and forearm by hours | Every 1 hour for 24 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Duration of analgesia (first request for analgesic) | The time from local anesthetic administration to the patient's first request for analgesic medication by hours | Every 30 minutes for 4 hours then every 2 hours for 24 hours |
| Visual analogue pain score |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Ebrahim Abbas, MD | faculty of medicine | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Minya university hospital | Minya | 611111 | Egypt |
all data can be shared
From now
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| ID | Term |
|---|---|
| D010149 | Pain, Postoperative |
| ID | Term |
|---|---|
| D011183 | Postoperative Complications |
| D010335 | Pathologic Processes |
| D013568 | Pathological Conditions, Signs and Symptoms |
| D010146 | Pain |
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Pain intensity was assessed using Visual analogue pain score. The Visual analogue pain score is consisted of a straight ,vertical 10-cm line; the bottom point represented "no pain"=(0 cm) and the top "the worst pain you could ever have =(10 cm) |
| 2,4,6,8,12,16,20 and 24 hours postoperative |
| D009461 | Neurologic Manifestations |
| D012816 | Signs and Symptoms |