IntroductionThe abducent nucleus is located in the upper part of the rhomboid fossa beneath the fourth ventricle in the caudal portion of the pons. The abducent nerve courses from its nucleus, to innervate the lateral rectus muscle. This nerve has the longest subarachnoid course of all the cranial nerves, it is the cranial nerve most vulnerable to trauma. It has been reported that 1% to 2.7% of all head injuries are followed by unilateral abducent palsy, but bilateral abducent nerve palsy is extremely rare.Case PresentationA 65-year-old woman presented to the emergency department following a motor vehicle accident. A neurological assessment showed the patient’s Glascow coma scale (GCS) to be 15. She complained of double vision, and we found lateral gaze palsy in both eyes. A hangman fracture type IIA (C2 fracture with posterior ligamentous C1 - C2 distraction) was found on the cervical CT scan. A three-month follow-up of the patient showed complete recovery of the abducent nerve.ConclusionsConservative treatment is usually recommended for traumatic bilateral abducent nerve palsy. Our patient recovered from this condition after three months without any remaining neurological deficit, a very rare outcome in a rare case.
Lidocaine has a concentration-dependent effect on seizures. Concentrations above 15 μg/mL frequently result in seizures in laboratory animals and human. We report a case of central nervous system (CNS) lidocaine toxicity and recurrent seizure after erroneous ingestion of lidocaine solution. A 4-year-old boy presented to the Emergency Department of Imam Hospital of Sari in December 2013 due to tonic-clonic generalized seizures approximately 30 min ago. 3 h before seizure, his mother gave him 2 spoons (amount 20–25 cc) lidocaine hydrochloride 2% solution instead of pediatric gripe by mistake. Seizure with generalized tonic-clonic occurred 3 times in home. Neurological examination was essentially unremarkable except for the depressed level of consciousness. Personal and medical history was unremarkable. There was no evidence of intracranial ischemic or hemorrhagic lesions in computed tomography scan. There were no further seizures, the condition of the patient remained stable, and he was discharged 2 days after admission. The use of viscous lidocaine may result in cardiovascular and CNS toxicity, particularly in children. Conservative management is the best option for treatment of lidocaine induced seizure.
Introduction: Pain is one of the most common reasons that patients visit emergency departments. Morphine has been used extensively in pain management but there is no consensus about the effectiveness of method of administration. The aim of this study was to compare the divided dose vs bolus medication form of morphine sulfate for management of acute pain in traumatic fracture. Methods: we designed a randomized double-blind clinical trial. On basis of inclusion and exclusion criteria, 160 patients with acute traumatic fracture were enrolled to the study and randomly divided into two groups. The first group (bolus group) received 0.1mg/kg morphine and then 0.1mg/kg normal saline every 5 minutes. The second group (titration group) received 0.1mg/kg of morphine in divided doses every 5 minutes. All injections were intravenously. The primary outcome was pain and before of injection, 15 minutes and 60 minutes after injection were recorded. Data were analyzed using SPSS 19. Results: 77 patients included 49 (63.6%) male with mean age of 47.42 ± 13.15 years were in titration group and 83 patients included 47 males (56.6%) with mean age of 52.40 ± 15.62 years were in bolus group. The complication rate was significantly higher in bolus group (75.9% vs 53.2%, P <0.0001). The need to extra morphine injection in bolus and titration group were 62.7% and 28.6%, respectively (P <0.0001). The mean pain score before and at 15 and 60 minutes after injection were 9.56 ± 1.03, 6.61 ± 1.86 and 1.85 ± 1.13 in titration group and 9.76 ± 0.48, 6.53 ± 1.59 and 0.61 ± 0.46 in bolus group, respectively. The pain score was significantly lower in titration group at 60 minutes after injection (P <0.0001). Discussion: The results of this study showed that titration of morphine are a safe and effective method in compared with bolus administration to reducing acute pain in traumatic fracture.
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