• Title/Summary/Keyword: Visual Agnosia

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Case Report on a Posterior Cerebral Artery Infarction Patient with Visual and Cognitive Abnormalities (후대뇌동맥 경색으로 발생한 시각 및 인지장애 환자 치험 1례)

  • Eum, Hyung-Sup;Jung, Wun-Suk;Seo, Un-Kyo;Kang, Yoon-Ho;Kim, Sung-A
    • The Journal of Internal Korean Medicine
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    • v.25 no.4
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    • pp.433-441
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    • 2004
  • The posterior cerebral arteries supply the temporal and occipital lobes of the left cerebral hemisphere and the right hemisphere. Clinical symptoms associated with occlusion of the posterior cerebral artery are visual abnormalities including opposite visual field defects, hallucination, visual amnesia and a variety of other symptoms, including confusion, cognitive disorders, thalamic syndrome, Weber's syndrome, contralateral hemplegia. This case report is about a patient with visual and cognitive abnormalities caused by posterior cerebral artery infarction. He was regarded as Soyangin(少陽人) in constitution and was treated with Yangkyuksanhoa-tang(凉膈散火湯) and other treatments. Improvement in his general symptoms was observed.

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A case report of Hypoxic ischemic encephalopathy (저산소성 허혈성 뇌손상 환아의 치험 1례)

  • You, Han-Jung;Koh, Duck-Jae;Cho, Hyung-Jun;Lee, Jin-Yong
    • The Journal of Pediatrics of Korean Medicine
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    • v.18 no.2
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    • pp.143-160
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    • 2004
  • Objective: There were few reports on the treatment of Hypoxic ischemic encephalopathy. We treated a hypoxic ischemic encephalopathic patient after accident with Oriental medical approach, and get a significant result. this treatment shows the possibility of healing Hypoxic ischemic encephalopathy, So we are reporting that case. Method : The acupuncture, herb medication. rehabilitation therapy was applied for treting patient's chife symptom(involuntary movement, dystonia, aphasia, dysuria, constipation) Results : 1. Generally patients with Hypoxic ischemic encephalopathy show language impairment and cognition disorder for several weeks to months. After coma stage, first they recover consciousness but have various degree of confusional mentality, visual agnosia, extrapyramidal stiffness and motor disturbance. 2. Consciousness loss in acute stage of Hypoxic ischemic encephalopathy can be considered as Mental Confusion due to Phlegm(Dammisimgyu) in veiw point of Oriental medicine. 3. After oriental medical treatment, patient's chief symptoms were improved. Conclusion: We treated a hypoxic ischemic encephalopathic patient with Oriental medical approach and patient's chief symptoms were improved. this treatment shows the possibility of healing Hypoxic ischemic encephalopathy.

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Surgical Strategy of Epilepsy Arising from Parietal and Occipital Lobes (두정엽 및 후두엽 간질에 대한 수술전략)

  • Sim, Byung-Su;Choi, Ha-Young
    • Journal of Korean Neurosurgical Society
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    • v.29 no.2
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    • pp.222-230
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    • 2000
  • Purpose : Resection of the epileptogenic zone in the parietal and occipital lobes may be relevant although only few studies have been reported. Methods : Eight patients with parietal epilepsy and nine patients with occipital epilepsy were included for this study. Preoperatively, all had video-EEG monitoring with extracranial electrodes, MRI, 3D-surface rendering of MRI using Allegro(ISG Technologies Inc., Toronto, Canada), and PET scans. Sixteen patients underwent invasive recording with subdural grid. Eight had parietal resection including the sensory cortex in two. Seven had partial occipital resection. Two underwent total unilateral occipital lobectomy. The extent of the resection was made based mainly on the data of invasive EEG recordings, MRI, and 3D-surface rendering of MRI, not on the intraoperative electrocorticographic findings as usually done. During resection, electrocortical stimulation was performed on the motor cortex and speech area. Results : Out of eight patients with parietal epilepsy, three had sensory aura, two had gustatory aura, and two had visual aura. Six of nine patients with occipital epilepsy had visual auras. All had complex partial seizures with lateralizing signs in 15 patients. Four had quadrantopsia. One had mild right hemiparesis. Abnormality in MRI was noticed in six out of eight parietal epilepsy and in eight out of nine occipital epilepsy. 3D-surface rendering of MRI visualized volumetric abnormality with geometric spatial relationships adjacent to the normal brain, in all of parietal and occipital epilepsy. Surface EEG recording was not reliable in localizing the epileptogenic zone in any patient. The subdural grid electrodes can be implanted on the core of the structural abnormality in 3D-reconstructed brain. Ictal onset zone was localized accurately by subdural grid EEGs in 16 patients. Motor cortex in nine and sensory speech area in two were identified by electrocortical stimulation. Histopathologic findings revealed cortical dysplasia in 10 patients ; tuberous sclerosis was combined in two, hamartoma and ganglioglioma in one each, and subpial gliosis in six. Eleven patients were seizure free at follow-up of 6 months to 37 months(mean 19.7 months) after surgery. Seizures recurred in two and were unchanged in one. Six produced transient sensory loss and one developed hemiparesis and tactile agnosia. One revealed transient apraxia. Two patients with preoperative quadrantopsia developed homonymous hemianopsia. Conclusion : This study suggests that surgical treatment was relevant in parietal and occipital epilepsies with good surgical outcome, without significant neurologic sequelae. Neuroimaging studies including conventional MRI, 3Dsurface rendering of MRI were necessary in identifying the epileptogenic zone. In particular, 3D-surface rendering of MRI was very helpful in presuming the epileptogenic zone in patients with unidentifiable lesion in the conventional MRI, in planning surgical approach to lesions, and also in making a decision of the extent of the epileptogenic zone in patients with identifiable lesion in conventional MRI. Invasive EEG recording with the subdural grid electrodes helped to confirm a core of the epileptogenic zone which was revealed in 3D-surface rendered brain.

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