BACKGROUND Hemichorea and other hyperkinetic movement disorders are uncommon present-ations of stroke and are usually secondary to deep infarctions affecting the basal ganglia and thalamus.Therefore,temporal ischemic ...BACKGROUND Hemichorea and other hyperkinetic movement disorders are uncommon present-ations of stroke and are usually secondary to deep infarctions affecting the basal ganglia and thalamus.Therefore,temporal ischemic lesions causing hemichorea are rare.We report the cases of two patients with acute ischemic temporal lobe infarct strokes that presented as hemichorea.CASE SUMMARY Patient 1:An 82-year-old woman presented with a 1-mo history of involuntary movement of the left extremity,which was consistent with hemichorea.Her diffusion-weighted imaging(DWI)revealed an acute ischemic stroke that predominantly affected the right temporal cortex,and magnetic resonance angiography of the head showed significant stenosis of the right middle cerebral artery(MCA).Treatment with 2.5 mg of olanzapine per day was initiated.When she was discharged from the hospital,her symptoms appeared to have improved compared with those previously observed.Twenty-seven days after the first admission,she was readmitted due to acute ischemic stroke.Computed tomogra-phy perfusion showed marked hypoperfusion in the right MCA territory.An emergency transfemoral cerebral angiogram was performed and showed severe stenosis in the M1 segment of the right MCA.After percutaneous transluminal angioplasty was successfully performed,abnormal movements or other neuro-logic problems did not occur.Patient 2:A 76-year-old man was admitted to our hospital for a 7-d history of right-upper-sided involuntary movements.DWI showed an acute patchy ischemic stroke in the left temporal lobe without basal ganglia involvement.Subsequent diffusion tensor imaging confirmed fewer white matter fiber tracts on the left side than on the opposite side.Treatment with 2.5 mg of olanzapine per day improved his condition,and he was discharged.CONCLUSION When acute hemichorea suddenly appears,temporal cortical ischemic stroke should be considered a possible diagnosis.In addition,hemichorea may be a sign of impending cerebral infarction with MCA stenosis.展开更多
BACKGROUND Hemichorea usually results from vascular lesions of the basal ganglia.Most often,the lesion is contralateral to the affected limb but rarely,it may be ipsilateral.The pathophysiology of ipsilateral hemichor...BACKGROUND Hemichorea usually results from vascular lesions of the basal ganglia.Most often,the lesion is contralateral to the affected limb but rarely,it may be ipsilateral.The pathophysiology of ipsilateral hemichorea is still poorly understood.We review the literature on hemichorea due to ipsilateral cerebral infarction and explore possible mechanisms for its occurrence.CASE SUMMARY A 72-year-old woman presented with complaints of involuntary movements of the muscles of the left side of the face and mild weakness of the right limbs.Her symptoms had started suddenly 1 d earlier.After admission to the hospital,the involuntary movements spread to involve the left limbs also.Magnetic resonance imaging revealed a left thalamic infarction.The patient’s hemichorea subsided after treatment with haloperidol(2 mg per time,3 times/d)for 3 d;the hemiparesis resolved with rehabilitation physiotherapy.She is presently symptom free and on treatment for prevention of secondary stroke.We review the literature on the occurrence of ipsilateral hemichorea following thalamic infarction and discuss the possible pathomechanisms of this unusual presentation.CONCLUSION Ipsilateral hemichorea following a thalamic stroke is rare but it can be explained by structure of the extrapyramidal system.The thalamus is a relay station that exerts a bilateral control of motor function.展开更多
Hemichorea with corresponding putamenal T1 hyper-intensity and T2 hypointensity on MR imaging has occasionally been reported in diabetes mellitus with nonketotic hyperglycemia. However, the signal intensity in pu-tame...Hemichorea with corresponding putamenal T1 hyper-intensity and T2 hypointensity on MR imaging has occasionally been reported in diabetes mellitus with nonketotic hyperglycemia. However, the signal intensity in pu-tamenal and cerebellum lesion on MR imaging, which is believed to be pathogenetically related to hemichorea, is rarely documented in diabetes mellitus with nonketotic hyperglycemia. We describe a 57-year-old man with nonketotic hyperglycemic hemichorea on his right arm and legs, whose signal intensity in putamenal and cerebellum lesion was demonstrated by MR imaging.展开更多
目的探讨急性脑血管病致偏身舞蹈-投掷症的临床特点。方法对13例以偏身舞蹈-投掷症为主要临床表现的急性脑血管病患者的临床资料进行回顾分析。结果本组患者均为急性起病,11例以偏身舞蹈样症状为主要表现,2例以偏身投掷样症状为主要表现...目的探讨急性脑血管病致偏身舞蹈-投掷症的临床特点。方法对13例以偏身舞蹈-投掷症为主要临床表现的急性脑血管病患者的临床资料进行回顾分析。结果本组患者均为急性起病,11例以偏身舞蹈样症状为主要表现,2例以偏身投掷样症状为主要表现,且出现在脑血管病发病后1～3 d。头颅CT或MRI示尾状核腔隙性梗死(腔梗)4例,壳核腔梗3例,放射冠、尾状核头及内囊前肢腔梗、额叶及放射冠梗死、丘脑出血及中脑出血各1例。经综合治疗6～10 d 10例患者症状消失,3例遗留不同程度的运动障碍。结论多数急性脑血管病致偏身舞蹈-投掷症患者为基底节区腔梗,主要表现为运动过度,综合治疗预后大多数较好。展开更多
目的总结非酮症性高血糖偏身舞蹈症(hemichorea associated with non-ketotic hyperglycemia,HC-NH的临床、影像学特征以及发病机制。方法选取2015年1月至2020年9月北京市海淀医院和开封市中心医院诊断为HC-NH的14例患者,结合临床症状...目的总结非酮症性高血糖偏身舞蹈症(hemichorea associated with non-ketotic hyperglycemia,HC-NH的临床、影像学特征以及发病机制。方法选取2015年1月至2020年9月北京市海淀医院和开封市中心医院诊断为HC-NH的14例患者,结合临床症状、实验室检查结果和影像学资料,分析该病的发病机制、影像学表现及预后。结果患者平均年龄(77.0±9.6)岁,从出现症状到就诊平均8.83 d。患者均有糖尿病病史,就诊时即刻血糖平均值为(22.89±10.37)mmol/L,入院后糖化血红蛋白平均值为(12.7±2.0)%;尿常规未见酮体;头颅CT平扫表现为纹状体高密度或MRI-T1WI高信号病变,T2WI信号可变化,病灶边界清晰周围无水肿。经积极控制血糖、改善循环及多巴胺抑制剂治疗后,患者症状迅速好转。结论HC-NH主要为老年发病,急性或亚急性起病,及时诊断,积极治疗,预后较好。但需警惕不典型病例并与其他引起舞蹈症的疾病鉴别。展开更多
文摘BACKGROUND Hemichorea and other hyperkinetic movement disorders are uncommon present-ations of stroke and are usually secondary to deep infarctions affecting the basal ganglia and thalamus.Therefore,temporal ischemic lesions causing hemichorea are rare.We report the cases of two patients with acute ischemic temporal lobe infarct strokes that presented as hemichorea.CASE SUMMARY Patient 1:An 82-year-old woman presented with a 1-mo history of involuntary movement of the left extremity,which was consistent with hemichorea.Her diffusion-weighted imaging(DWI)revealed an acute ischemic stroke that predominantly affected the right temporal cortex,and magnetic resonance angiography of the head showed significant stenosis of the right middle cerebral artery(MCA).Treatment with 2.5 mg of olanzapine per day was initiated.When she was discharged from the hospital,her symptoms appeared to have improved compared with those previously observed.Twenty-seven days after the first admission,she was readmitted due to acute ischemic stroke.Computed tomogra-phy perfusion showed marked hypoperfusion in the right MCA territory.An emergency transfemoral cerebral angiogram was performed and showed severe stenosis in the M1 segment of the right MCA.After percutaneous transluminal angioplasty was successfully performed,abnormal movements or other neuro-logic problems did not occur.Patient 2:A 76-year-old man was admitted to our hospital for a 7-d history of right-upper-sided involuntary movements.DWI showed an acute patchy ischemic stroke in the left temporal lobe without basal ganglia involvement.Subsequent diffusion tensor imaging confirmed fewer white matter fiber tracts on the left side than on the opposite side.Treatment with 2.5 mg of olanzapine per day improved his condition,and he was discharged.CONCLUSION When acute hemichorea suddenly appears,temporal cortical ischemic stroke should be considered a possible diagnosis.In addition,hemichorea may be a sign of impending cerebral infarction with MCA stenosis.
基金Department of Education Zhejiang Province Scientific Research Project,No.Y201942038and Zhejiang Province Medical Science and Technology Project,No.2020RC061.
文摘BACKGROUND Hemichorea usually results from vascular lesions of the basal ganglia.Most often,the lesion is contralateral to the affected limb but rarely,it may be ipsilateral.The pathophysiology of ipsilateral hemichorea is still poorly understood.We review the literature on hemichorea due to ipsilateral cerebral infarction and explore possible mechanisms for its occurrence.CASE SUMMARY A 72-year-old woman presented with complaints of involuntary movements of the muscles of the left side of the face and mild weakness of the right limbs.Her symptoms had started suddenly 1 d earlier.After admission to the hospital,the involuntary movements spread to involve the left limbs also.Magnetic resonance imaging revealed a left thalamic infarction.The patient’s hemichorea subsided after treatment with haloperidol(2 mg per time,3 times/d)for 3 d;the hemiparesis resolved with rehabilitation physiotherapy.She is presently symptom free and on treatment for prevention of secondary stroke.We review the literature on the occurrence of ipsilateral hemichorea following thalamic infarction and discuss the possible pathomechanisms of this unusual presentation.CONCLUSION Ipsilateral hemichorea following a thalamic stroke is rare but it can be explained by structure of the extrapyramidal system.The thalamus is a relay station that exerts a bilateral control of motor function.
文摘Hemichorea with corresponding putamenal T1 hyper-intensity and T2 hypointensity on MR imaging has occasionally been reported in diabetes mellitus with nonketotic hyperglycemia. However, the signal intensity in pu-tamenal and cerebellum lesion on MR imaging, which is believed to be pathogenetically related to hemichorea, is rarely documented in diabetes mellitus with nonketotic hyperglycemia. We describe a 57-year-old man with nonketotic hyperglycemic hemichorea on his right arm and legs, whose signal intensity in putamenal and cerebellum lesion was demonstrated by MR imaging.
文摘目的探讨急性脑血管病致偏身舞蹈-投掷症的临床特点。方法对13例以偏身舞蹈-投掷症为主要临床表现的急性脑血管病患者的临床资料进行回顾分析。结果本组患者均为急性起病,11例以偏身舞蹈样症状为主要表现,2例以偏身投掷样症状为主要表现,且出现在脑血管病发病后1～3 d。头颅CT或MRI示尾状核腔隙性梗死(腔梗)4例,壳核腔梗3例,放射冠、尾状核头及内囊前肢腔梗、额叶及放射冠梗死、丘脑出血及中脑出血各1例。经综合治疗6～10 d 10例患者症状消失,3例遗留不同程度的运动障碍。结论多数急性脑血管病致偏身舞蹈-投掷症患者为基底节区腔梗,主要表现为运动过度,综合治疗预后大多数较好。
