Mild encephalopathy/encephalitis with a reversible splenial(MERS) lesion is a clinic-radiological entity. The clinical features of MERS in neonates are still not systemically reported. This paper presents five cases o...Mild encephalopathy/encephalitis with a reversible splenial(MERS) lesion is a clinic-radiological entity. The clinical features of MERS in neonates are still not systemically reported. This paper presents five cases of MERS, and the up-to-date reviews of previously reported cases were collected and analyzed in the literature. Here we describe five cases clinically diagnosed with MERS. All of them were neonates and the average age was about 4 days. They were admitted for the common neurological symptoms such as hyperspasmia, poor reactivity and delirium. Auxiliary examinations during hospitalization also exhibited features in common. In this report, we reached following conclusions. Firstly, magnetic resonance imaging revealed solitary or comprehensive lesions in the splenium of corpus callosum, some of them extending to almost the whole corpus callosum. The lesions showed low intensity signal on T1-weighted images, homogeneously hyperintense signal on T2-weighted images, fluid-attenuated inversion recovery and diffusion-weighted images, and exhibited an obvious reduced diffusion on apparent diffusion coefficient map. Moreover, the lesions in the magnetic resonance imaging disappeared very quickly even prior to the clinical recovery. Secondly, all the cases depicted here suffered electrolyte disturbances especially hyponatremia which could be easily corrected. Lastly, all of the cases recovered quickly over one week to one month and majority of them exhibited signs of infections and normal electroencephalography.展开更多
Objective Mild encephalopathy with reversible splenial lesion(MERS)is associated with a variety of infections and anti-epileptic drug withdrawal.Here we report the clinical characteristics of H1N1 influenza A-associat...Objective Mild encephalopathy with reversible splenial lesion(MERS)is associated with a variety of infections and anti-epileptic drug withdrawal.Here we report the clinical characteristics of H1N1 influenza A-associated MERS based on our experience of four pediatric cases.Methods A detailed retrospective analysis of four patients with H1N1 influenza A-associated MERS was performed at Guangzhou Women and Children’s Medical Center.Results All patients exhibited mild influenza-like illness and seizures.Three patients presented with a new-onset seizure with fever after 5 years of age.75%patients had altered mental status.For all four patients,influenza A(H1N1)viral RNA was detected in throat swab specimens at least twice.Brain magnetic resonance images revealed similar ovoid lesions in the corpus callosum,mainly in the splenium and for one patient in the splenium and genu of the corpus callosum.Only one patient had an abnormal electroencephalogram tracing.Cells and protein in the cerebrospinal fluid were normal in all patients.All patients received oseltamivir and one patient received intravenous immunoglobulin.As a result,all patients fully recovered after 2 months and showed no neurologic sequelae at discharge.Conclusion This case series provides insight towards clinical features of H1N1 influenza A-associated MERS.展开更多
目的总结成人轻度脑炎或脑病伴可逆性胼胝体压部病变(mild encephalitis/encephalopathy with a reversible splenial lesion,MERS)患者的临床特点。方法回顾性分析6例MERS患者的临床资料,总结MERS的临床特征。结果 6例MERS患者中,5例...目的总结成人轻度脑炎或脑病伴可逆性胼胝体压部病变(mild encephalitis/encephalopathy with a reversible splenial lesion,MERS)患者的临床特点。方法回顾性分析6例MERS患者的临床资料,总结MERS的临床特征。结果 6例MERS患者中,5例以精神行为异常为首发症状,5例伴发热,出现反应迟钝、记忆力下降、一过性意识障碍、谵妄各2例,合并头痛、嗜睡各1例;3例存在定向障碍,2例脑膜刺激征阳性;脑脊液检查均无明显异常;头颅MRI均可见胼胝体压部异常信号;经治疗后,1个月内患者症状及影像学改变消失。结论当患者有脑炎或脑病症状且头颅MRI示胼胝体压部有异常信号时,需高度警惕MERS,定期复查头颅MRI有助于MERS的诊断;治疗后颅内病变可逆者预后良好。展开更多
基金supported by Wuhan Clinical Medical Research Center for Children’s Neural Disease(No.2014-160)
文摘Mild encephalopathy/encephalitis with a reversible splenial(MERS) lesion is a clinic-radiological entity. The clinical features of MERS in neonates are still not systemically reported. This paper presents five cases of MERS, and the up-to-date reviews of previously reported cases were collected and analyzed in the literature. Here we describe five cases clinically diagnosed with MERS. All of them were neonates and the average age was about 4 days. They were admitted for the common neurological symptoms such as hyperspasmia, poor reactivity and delirium. Auxiliary examinations during hospitalization also exhibited features in common. In this report, we reached following conclusions. Firstly, magnetic resonance imaging revealed solitary or comprehensive lesions in the splenium of corpus callosum, some of them extending to almost the whole corpus callosum. The lesions showed low intensity signal on T1-weighted images, homogeneously hyperintense signal on T2-weighted images, fluid-attenuated inversion recovery and diffusion-weighted images, and exhibited an obvious reduced diffusion on apparent diffusion coefficient map. Moreover, the lesions in the magnetic resonance imaging disappeared very quickly even prior to the clinical recovery. Secondly, all the cases depicted here suffered electrolyte disturbances especially hyponatremia which could be easily corrected. Lastly, all of the cases recovered quickly over one week to one month and majority of them exhibited signs of infections and normal electroencephalography.
基金supported by the Medical Scientific Research Foundation of Guangdong Province of China(No.A2020502).
文摘Objective Mild encephalopathy with reversible splenial lesion(MERS)is associated with a variety of infections and anti-epileptic drug withdrawal.Here we report the clinical characteristics of H1N1 influenza A-associated MERS based on our experience of four pediatric cases.Methods A detailed retrospective analysis of four patients with H1N1 influenza A-associated MERS was performed at Guangzhou Women and Children’s Medical Center.Results All patients exhibited mild influenza-like illness and seizures.Three patients presented with a new-onset seizure with fever after 5 years of age.75%patients had altered mental status.For all four patients,influenza A(H1N1)viral RNA was detected in throat swab specimens at least twice.Brain magnetic resonance images revealed similar ovoid lesions in the corpus callosum,mainly in the splenium and for one patient in the splenium and genu of the corpus callosum.Only one patient had an abnormal electroencephalogram tracing.Cells and protein in the cerebrospinal fluid were normal in all patients.All patients received oseltamivir and one patient received intravenous immunoglobulin.As a result,all patients fully recovered after 2 months and showed no neurologic sequelae at discharge.Conclusion This case series provides insight towards clinical features of H1N1 influenza A-associated MERS.
文摘目的总结成人轻度脑炎或脑病伴可逆性胼胝体压部病变(mild encephalitis/encephalopathy with a reversible splenial lesion,MERS)患者的临床特点。方法回顾性分析6例MERS患者的临床资料,总结MERS的临床特征。结果 6例MERS患者中,5例以精神行为异常为首发症状,5例伴发热,出现反应迟钝、记忆力下降、一过性意识障碍、谵妄各2例,合并头痛、嗜睡各1例;3例存在定向障碍,2例脑膜刺激征阳性;脑脊液检查均无明显异常;头颅MRI均可见胼胝体压部异常信号;经治疗后,1个月内患者症状及影像学改变消失。结论当患者有脑炎或脑病症状且头颅MRI示胼胝体压部有异常信号时,需高度警惕MERS,定期复查头颅MRI有助于MERS的诊断;治疗后颅内病变可逆者预后良好。
