Background: Ultrasound-guided for regional anesthesia offers many potential benefits in the emergency setting. Analgesia can be explicitly targeted to the region of pain and provide relief for many hours and decrease ...Background: Ultrasound-guided for regional anesthesia offers many potential benefits in the emergency setting. Analgesia can be explicitly targeted to the region of pain and provide relief for many hours and decrease needing to the large volume of local anesthetic. The aim of the work: Comparing the efficacy of dexmedetomidine when used as an adjuvant to bupivacaine in supraclavicular brachial plexus blocks on the onset of sensory, motor blockade and postoperative analgesia. Patients and methods: This prospective, randomized, single-blind clinical study conducted on 60 patients underwent upper limb surgery done by ultrasound-guided supraclavicular brachial plexus block;these patients allocated into two equal groups: Group I (control) received 20 ccs (19 cc bupivacaine 0.5% + 1 cc saline), Group II received 20 cc (19 cc bupivacaine 0.5% + 1 cc volume of Dexmedetomidine 1 ug/kg). Results: Demographic data and surgical characteristics were comparable in both groups. The onset times for sensory and motor blocks were significantly shorter in Group II than Group I (P Conclusion: We recommend adding Dexmedetomidine to local anesthetics in peripheral nerve blocks to take advantage of the prolonged time of both sensory and motor blocks and prolonged postoperative analgesia.展开更多
BACKGROUND Dexmedetomidine(DMED)is frequently used as a sedative in several medical fields.The benefits of DMED include enhanced quality of regional anesthesia,prolonged analgesia,and postoperative opioid-sparing when...BACKGROUND Dexmedetomidine(DMED)is frequently used as a sedative in several medical fields.The benefits of DMED include enhanced quality of regional anesthesia,prolonged analgesia,and postoperative opioid-sparing when administered intravenously or perineurally in combination with regional anesthesia.Severe hemodynamic complications,such as profound bradycardia and hypotension,can occur after DMED administration in critically ill patients or overdosage;however,there are few reports of complications with DMED administration following brachial plexus block(BPB).CASE SUMMARY We present two cases of hemodynamic instability that occurred following the initial loading of DMED under supraclavicular BPB.A healthy 29-year-old man without any medical history showed profound bradycardia after receiving a loading dose of DMED 0.9μg/kg for 9 min.DMED administration was promptly stopped,and after receiving a second dose of atropine,the heart rate recovered.A 62-year-old woman with a history of cardiomyopathy became hypotensive abruptly,requiring the administration of inotrope and vasopressors after receiving a reduced loading dose of 0.5μg/kg for 10 min.Half of the recommended loading dose of DMED was administered due to the underlying heart dysfunction.Decrea-sed blood pressure was maintained despite the intravenous administration of ephedrine.With continuous infusion of dopamine and norepinephrine,the vital signs were maintained within normal ranges.Inotropic and vasopressor support was required for over 6 h after the initial loading dose of DMED.CONCLUSION DMED administration following BPB could trigger hemodynamic instability in patients with decreased cardiac function as well as in healthy individuals.展开更多
<b><span>Background:</span></b><span> Distal radius fracture surgery is performed under general (GA) or regional anesthesia with brachial plexus block (NB). </span><span>Wheth...<b><span>Background:</span></b><span> Distal radius fracture surgery is performed under general (GA) or regional anesthesia with brachial plexus block (NB). </span><span>Whether anesthesia type affects patient outcomes is unclear. </span><span>This study retrospectively compared patient satisfaction between GA and NB after surgery. </span><b><span>Methods: </span></b><span>This was a historical cohort study of 80 (34 GA and 46 NB) patients who underwent volar plate fixation of distal radius fractures. Propensity score analysis was used to generate a set of matched cases (NB) and controls (GA), yielding 14 matched patient-pairs. The simplified patient satisfaction scale was compared for primary outcomes. Secondary outcomes were anesthesia and surgery duration, hospital stay length, adverse events, postoperative analgesic requirement, and wrist range of motion (ROM) 2 weeks and 3 months postoperatively.</span><span> </span><b><span>Results:</span></b><span> After propensity score matching, patients in almost all cases in both groups were “Satisfied” (effect size: 0.1, p</span><span> </span><span>=</span><span> </span><span>0.572), indicating little significant difference. Significant differences in adverse events and postoperative analgesic use observed before matching disappeared after matching. Anesthesia duration and hospital stay length were significantly shorter in the NB group (effect size: </span><span>-</span><span>1.27 and </span><span>-</span><span>0.77, p</span><span> </span><span>=</span><span> </span><span>0.00074 and p</span><span> </span><span>=</span><span> </span><span>0.0388, respectively), as was surgery duration (effect size: </span><span>-</span><span>0.84, p</span><span> </span><span>=</span><span> </span><span>0.0122) after matching. Similar to before matching, wrist ROM significantly improved in the NB group (effect size: 1.11, p</span><span> </span><span>=</span><span> </span><span>0.0279) in the early postoperative period, but the difference disappeared at 3 months postoperatively.</span><span> </span><b><span>Conclusions:</span></b><span> Patient satisfaction between distal radius fracture surgery under GA and NB was similar. Nerve block could help shorten hospital stay length and surgery duration and improve postoperative functional recovery.</span>展开更多
目的观察不同剂量右美托咪定(Dex)复合罗哌卡因腋路臂丛阻滞用于小儿多指手术的比较的效果及安全性。方法小儿多指手术患者80例,随机均分为:不同剂量Dex组(D1-3组)和对照组(C组)。D1-3组腋路臂丛用药分别为Dex 0.25、0.5、0.75μg/kg+0....目的观察不同剂量右美托咪定(Dex)复合罗哌卡因腋路臂丛阻滞用于小儿多指手术的比较的效果及安全性。方法小儿多指手术患者80例,随机均分为:不同剂量Dex组(D1-3组)和对照组(C组)。D1-3组腋路臂丛用药分别为Dex 0.25、0.5、0.75μg/kg+0.25%罗哌卡因0.20 m L/kg,C组为0.25%罗哌卡因0.20 m L/kg。记录阻滞完成、起效、维持及术后苏醒时间及并发症情况。结果 D2组及D3组在起效时间及术后苏醒时间上均比C组短,而维持时间长,D3组比D1组在起效时间及术后苏醒时间上均缩短,而维持时间长。D1-3组的阻滞成功率高于C组,差异有统计学意义(P<0.05),D1-3组间无统计学差异。并发症方面,4组未出现血肿病例,各有1例患儿出现喉返神经阻滞,各有1例呼吸抑制,2或3例霍纳综合征,D3组出现1例患儿心率<70 min,经处理均安全恢复。结论单纯罗哌卡因或复合Dex臂丛神经阻滞,均可以用于小儿多指手术,中剂量Dex(0.5μg/kg)+0.25%罗哌卡因0.20 m L/kg的配伍较佳。展开更多
文摘Background: Ultrasound-guided for regional anesthesia offers many potential benefits in the emergency setting. Analgesia can be explicitly targeted to the region of pain and provide relief for many hours and decrease needing to the large volume of local anesthetic. The aim of the work: Comparing the efficacy of dexmedetomidine when used as an adjuvant to bupivacaine in supraclavicular brachial plexus blocks on the onset of sensory, motor blockade and postoperative analgesia. Patients and methods: This prospective, randomized, single-blind clinical study conducted on 60 patients underwent upper limb surgery done by ultrasound-guided supraclavicular brachial plexus block;these patients allocated into two equal groups: Group I (control) received 20 ccs (19 cc bupivacaine 0.5% + 1 cc saline), Group II received 20 cc (19 cc bupivacaine 0.5% + 1 cc volume of Dexmedetomidine 1 ug/kg). Results: Demographic data and surgical characteristics were comparable in both groups. The onset times for sensory and motor blocks were significantly shorter in Group II than Group I (P Conclusion: We recommend adding Dexmedetomidine to local anesthetics in peripheral nerve blocks to take advantage of the prolonged time of both sensory and motor blocks and prolonged postoperative analgesia.
基金Supported by the Fund of Biomedical Research Institute,Jeonbuk National University Hospital,Jeonju,Republic of Korea.
文摘BACKGROUND Dexmedetomidine(DMED)is frequently used as a sedative in several medical fields.The benefits of DMED include enhanced quality of regional anesthesia,prolonged analgesia,and postoperative opioid-sparing when administered intravenously or perineurally in combination with regional anesthesia.Severe hemodynamic complications,such as profound bradycardia and hypotension,can occur after DMED administration in critically ill patients or overdosage;however,there are few reports of complications with DMED administration following brachial plexus block(BPB).CASE SUMMARY We present two cases of hemodynamic instability that occurred following the initial loading of DMED under supraclavicular BPB.A healthy 29-year-old man without any medical history showed profound bradycardia after receiving a loading dose of DMED 0.9μg/kg for 9 min.DMED administration was promptly stopped,and after receiving a second dose of atropine,the heart rate recovered.A 62-year-old woman with a history of cardiomyopathy became hypotensive abruptly,requiring the administration of inotrope and vasopressors after receiving a reduced loading dose of 0.5μg/kg for 10 min.Half of the recommended loading dose of DMED was administered due to the underlying heart dysfunction.Decrea-sed blood pressure was maintained despite the intravenous administration of ephedrine.With continuous infusion of dopamine and norepinephrine,the vital signs were maintained within normal ranges.Inotropic and vasopressor support was required for over 6 h after the initial loading dose of DMED.CONCLUSION DMED administration following BPB could trigger hemodynamic instability in patients with decreased cardiac function as well as in healthy individuals.
文摘<b><span>Background:</span></b><span> Distal radius fracture surgery is performed under general (GA) or regional anesthesia with brachial plexus block (NB). </span><span>Whether anesthesia type affects patient outcomes is unclear. </span><span>This study retrospectively compared patient satisfaction between GA and NB after surgery. </span><b><span>Methods: </span></b><span>This was a historical cohort study of 80 (34 GA and 46 NB) patients who underwent volar plate fixation of distal radius fractures. Propensity score analysis was used to generate a set of matched cases (NB) and controls (GA), yielding 14 matched patient-pairs. The simplified patient satisfaction scale was compared for primary outcomes. Secondary outcomes were anesthesia and surgery duration, hospital stay length, adverse events, postoperative analgesic requirement, and wrist range of motion (ROM) 2 weeks and 3 months postoperatively.</span><span> </span><b><span>Results:</span></b><span> After propensity score matching, patients in almost all cases in both groups were “Satisfied” (effect size: 0.1, p</span><span> </span><span>=</span><span> </span><span>0.572), indicating little significant difference. Significant differences in adverse events and postoperative analgesic use observed before matching disappeared after matching. Anesthesia duration and hospital stay length were significantly shorter in the NB group (effect size: </span><span>-</span><span>1.27 and </span><span>-</span><span>0.77, p</span><span> </span><span>=</span><span> </span><span>0.00074 and p</span><span> </span><span>=</span><span> </span><span>0.0388, respectively), as was surgery duration (effect size: </span><span>-</span><span>0.84, p</span><span> </span><span>=</span><span> </span><span>0.0122) after matching. Similar to before matching, wrist ROM significantly improved in the NB group (effect size: 1.11, p</span><span> </span><span>=</span><span> </span><span>0.0279) in the early postoperative period, but the difference disappeared at 3 months postoperatively.</span><span> </span><b><span>Conclusions:</span></b><span> Patient satisfaction between distal radius fracture surgery under GA and NB was similar. Nerve block could help shorten hospital stay length and surgery duration and improve postoperative functional recovery.</span>
文摘目的观察不同剂量右美托咪定(Dex)复合罗哌卡因腋路臂丛阻滞用于小儿多指手术的比较的效果及安全性。方法小儿多指手术患者80例,随机均分为:不同剂量Dex组(D1-3组)和对照组(C组)。D1-3组腋路臂丛用药分别为Dex 0.25、0.5、0.75μg/kg+0.25%罗哌卡因0.20 m L/kg,C组为0.25%罗哌卡因0.20 m L/kg。记录阻滞完成、起效、维持及术后苏醒时间及并发症情况。结果 D2组及D3组在起效时间及术后苏醒时间上均比C组短,而维持时间长,D3组比D1组在起效时间及术后苏醒时间上均缩短,而维持时间长。D1-3组的阻滞成功率高于C组,差异有统计学意义(P<0.05),D1-3组间无统计学差异。并发症方面,4组未出现血肿病例,各有1例患儿出现喉返神经阻滞,各有1例呼吸抑制,2或3例霍纳综合征,D3组出现1例患儿心率<70 min,经处理均安全恢复。结论单纯罗哌卡因或复合Dex臂丛神经阻滞,均可以用于小儿多指手术,中剂量Dex(0.5μg/kg)+0.25%罗哌卡因0.20 m L/kg的配伍较佳。
