Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0012833 (dizziness)
 9,689 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The etiology of sympathotonic orthostatic hypotension (SOH) is still unknown. We reported a 50-year-old male case of SOH associated with herpes simplex encephalitis. Eight days before admission to our hospital, he noticed fever, which was followed by intractable hiccup. He was admitted to a local hospital, where nuchal rigidity and mononuclear CSF pleocytosis were noted. On the 9th hospital day, he suddenly developed respiratory arrest, and his consciousness state deteriorated to coma. He was transferred to our hospital with artificial ventilation on the same day. The second CSF examination revealed pleocytosis and positive herpes-simplex-virus antibody. CAT scan showed diffuse high density areas in the bilateral temporal lobes. Intensive anti-herpetic therapy was started. On the 14th hospital day, spontaneous respiration came back and consciousness state was improved from coma to stupor. He gradually recovered to alert state and became ambulatory by the 30th hospital day. Seven weeks after the onset of his illness, he noticed orthostatic dizziness for the first time during his rehabilitation exercises. Blood pressure was 116/78mmHg at supine position and 82/62mmHg at standing position, and the heart rate was 83bpm, and 141bpm, respectively. Plasma noradrenaline concentration was 0.09 ng/ml (within normal range) at supine position, but increased to 0.29ng/ml upon standing. Catecholamine infusion tests revealed hyposensitivity in beta 2-receptors; decrease in blood pressure in response to isoprenaline was blunted, while increase of blood pressure to noradrenaline was not impaired. Nerve conduction studies and sweating tests were normal. When he was discharged from our hospital on the 87th hospital day, he still had orthostatic symptoms. His complete recovery took full one year. Some authors claimed that SOH is an abortive form of acute autonomic neuropathy, while others postulated that it was due to unbalanced cardiovascular alpha- and beta-adrenoceptor functions. SOH of the present case seems to be caused by the central nervous lesions; especially, the brain stem involvement due to herpes simplex encephalitis may well be causing SOH.
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PMID:[A case of sympathotonic orthostatic hypotension following herpes simplex encephalitis]. 899 41

We report a 29-year-old man with diabetes insipidus and cerebellar ataxia who developed spinal cord swelling 15 years after the onset. He was well until 14 years of the age when he noted dizziness. Two years after there was an onset of gait disturbance and slurred speech. He also noted polydipsia and polyuria. He was evaluated at the neurosurgery service of our hospital when he was 17 years of the age. Neurologic examination at that time revealed memory loss, horizontal nystagmus, cerebellar ataxic gait, dysmetria and decomposition more on the left. Cranial CT scan revealed a mass lesion involving the left subthalamic region and the head of the caudate area. Spinal fluid was unremarkable, however, human chorionic gonadotropin was increased to 27 mIU/ml. He was treated by radiation therapy (3,000 rads for total brain area and 5,460 rads for focal region). His CT scan and memory loss improved, however, cerebellar ataxia was unchanged. Three years after the radiation, he started to show choreic movement in his neck and left upper extremity. He was admitted to our service in August 14, 1995 when he was 29 years of the age. On admission, he was alert but disoriented to time; calculation was also poor. Higher cerebral functions were intact. The optic fundi were normal without papilledema. Visual field appeared intact. Gaze nystagmus was observed in all the directions, but more prominent in the horizontal direction. Speech was slurred. Otherwise, cranial nerves were unremarkable. Motor wise, he showed marked truncal and gait ataxia; he was unable to walk because of ataxia. Muscle atrophy and marked weakness was noted in both upper extremities more on the left side. Deep tendon reflexes were diminished in the upper extremities but active in the lower extremities. He was polyuric; urinary specific gravity was low. Spinal fluid contained 6 cells/cmm and 113 mg/ dl of protein; Queckenstedt was positive. MRI revealed swelling of the cervical cord; in addition, the entire cervical region and the medullar oblongata appeared as high signal intensity areas. No mass lesion was noted in the supratentorial structures but the third ventricle was markedly enlarged. Surgical biopsy was performed on the cervical lesion. The patient was discussed in neurologic CPC, and the chief discussant arrived at the conclusion that the patient had germinoma with syncytiotrophoblastic giant cells in the diencephalic region which appeared to have been cured by radiation therapy; he thought that the cervical lesion was the seeding of germinoma. Cerebellar ataxia was ascribed to the remote effect of germinoma. Most of the participants thought that the original tumor was germinoma and the cervical lesion was its spread. Some participants thought that his ataxia was caused by germinoma cells involving the medulla and the inferior cerebellar peduncles. Histologic observation of the biopsied tissue from the spinal cord revealed the typical two cell patterned germinoma. Most of the tumor cells were not stained for an antibody against HCG, but some tumor cells were positively stained. Germinoma is very radio-sensitive; this patient showed T2 high signal lesion involving the medulla oblongata and cervical cord continuously. Probably, tumor cells in the lower brain stem escaped radiation, and gradually spread to the spinal cord over many years. At the time of operation, the surface of the spinal cord was free from tumor cells. Therefore, tumor cells invaded the spinal cord continuously from the medulla oblongata. He was treated with cervical radiation, and his neurologic as well as radiologic findings showed marked improvement.
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PMID:[A 29-year-old man with diabetes insipidus and cerebellar ataxia and development of spinal cord swelling 15 years after the onset]. 916 63

An 11-year-old boy suffered an inadvertent dural puncture during placement of an epidural catheter for postoperative analgesia. He developed symptoms of mild headache only, but severe and protracted orthostatic nausea and dizziness, which eventually resolved completely following epidural blood patch. His symptoms were atypical and could have been misinterpreted in the context of dural puncture for diagnosis, or for administration of intrathecal chemotherapy. The reported incidence of headache following dural puncture in children is low. It may be that the manifestations are different from those of adults and that the true incidence of symptoms related to leakage of cerebrospinal fluid is higher in children than currently recognised.
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PMID:Postdural puncture symptoms in a child. 924 30

We present the case of a young man on maintenance hemodialysis who developed frequent episodes of 'fluttering, racing heartbeats', hot flashes, profuse sweating, anxiety, dizziness, and shortness of breath. These symptoms started approximately 1 month after taking cimetidine 400 mg/day with an occasional extra dose. His workup included a total of 72 h of cardiac monitoring, two-dimensional echocardiogram, and thyroid function tests, all of which were essentially unremarkable. When the drug cimetidine was temporarily discontinued, and on another occasion after the drug was totally withdrawn, the patient noticed marked improvement in his symptoms at 48 h with total resolution on the 5th day after discontinuation. This is the 2nd such case reported in the literature.
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PMID:Cimetidine-induced climacteric symptoms in a young man maintained on chronic hemodialysis. 984 32

We report the case of a 30-year-old patient who developed scombrotoxic fish poisoning after eating cooked fresh tuna. Symptoms included a bright red rash, tightness of the chest, palpitations, anxiety, mild headache and dizziness, all of which resolved spontaneously within 2-3 h. Such poisoning results from the consumption of spoiled fish of the families Scomberesocidae or Scombridae - in particular tuna, mackerel, skipjack and bonito - which contain high levels of histidine. Incorrect storage of fish allows bacterial histidine decarboxylase to convert histidine to histamine. The ensuing symptoms are thought to result from the ingestion of histamine. Scombrotoxic fish poisoning is preventable by the correct handling and refrigeration of these fish.
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PMID:Scombrotoxic fish poisoning. 1023 20

A 15-year-old male was referred for evaluation of dizziness for the past 2 months. He complained of visual distortion and feeling of disorientation, was a poor student, and denied recreational drug use. His symptoms were consistent with the so-called "Alice in Wonderland" syndrome associated with Epstein-Barr virus infection. This case is an illustration of neurologic symptoms appearing without the features of infectious mononucleosis.
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PMID:Distortions of Space and Time. 1035 80

Cerebral dural sinus thrombosis (CDST) is a very rare complication of acute lymphoblastic leukemia (ALL) in adult patients. A 23-year-old man with ALL developed dizziness, headache, diplopia, limb weakness, and a sensation of fullness in his head after his second induction chemotherapy with doxorubicin, prednisolone, and vincristine. Examinations of the peripheral blood, bone marrow, and cerebrospinal fluid showed no recurrent leukemic cells. Magnetic resonance (MR) imaging of the brain disclosed unexpected CDST at the left transverse sinus, which was seen only on the fast fluid-attenuated inversion recovery (FLAIR) sequence. His symptoms were relieved soon after treatment with heparin. MR imaging with FLAIR performed a second time 7 days later showed complete disappearance of the thrombosis. The patient was treated continuously with oral anticoagulant therapy and the symptoms did not recur. CDST can be diagnosed in its early phase by MR studies with FLAIR images. Anticoagulant therapy can be administered safely without precipitating the occurrence of infarction hemorrhage at such an early stage of CDST.
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PMID:Cerebral dural sinus thrombosis in acute lymphoblastic leukemia with early diagnosis by fast fluid-attenuated inversion recovery (FLAIR) MR image: a case report and review of the literature. 1074 22

We reported a 48-year-old male who showed stimulus-sensitive spinal myoclonus due to chronic toluene intoxication. He has been exposed to thinner for more than 30 years as a painter, and occasionally experienced an episode of headache, nausea and dizziness because of acute thinner intoxication. He noted tremor of his hands 10 years ago. He also noticed memory disturbance since the end of 1997. Neurological examination revealed postural tremor of his fingers on the bilateral sides and the left arm. In addition, rhythmic myoclonic jerks were induced in the right upper limb muscles by a tendon tap given on the right brachioradialis muscles. Surface EMG revealed repetitive grouping discharges in those two muscles approximately 100 msec after the tendon tap which continued for about 30-50 msec. A long loop reflex (C-reflex) and giant SEPs were not observed in his right upper limb, and EEG showed no spike. Urinary excretion of N-benzoylglycine, which was a metabolite of toluene was increased (1.17 g/l). Therefore, he was diagnosed as a case of chronic toluene intoxication. His myoclonic jerks were considered to be stimulus-sensitive spinal myoclonus, because they were induced segmentally and because cortical hyperexcitability was not seen. This is the first report to describe the occurrence of stimulus-sensitive spinal myoclonus in the case of chronic toluene intoxication.
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PMID:[A case of chronic toluene intoxication presenting stimulus-sensitive segmental spinal myoclonus]. 1084 7

The Kearns-Sayre (K-S) syndrome which includes the triad of progressive external ophthalmoplegia, pigment retinopathy, and disorder of cardiac conduction was first described in 1958. The mitochondria disorder is believed to be the cause of this syndrome. Involvement of the cardiac conduction system is the most importent prognostic factor in K-S syndrome. A 34-year-old male K-S syndrome patient, manifesting as ptosis and weakness of limbs since the age of 15 years, suffered from dizziness and weakness. Twelve-lead eletrocardiography (ECG) showed a 2:1 atrioventricular (AV) block with slow ventricular rate. Intermittent complete AV block, complete left bundle branch block and torsades de pointes were noted in Holter ECG. The electrophysiology study demonstrated prolonged HV interval (85 ms) on conduction beat and infra-His block on non-conduction beat. A VVIR mode of permanent pacemaker was implanted and the patient's condition was stable during this period of follow-up.
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PMID:Atrioventricular block in Kearns-Sayre syndrome: a case report. 1155 73

We reported a 60-year-old man with granulomatous angiitis of the central nervous system (GACNS) manifesting as subacute mental deterioration. His first symptoms were nausea and vomiting which brought him to a hospital, where no abnormality was found except for gastritis. One month later, he began to feel dizziness and brain tumor was suspected by a neurosurgeon with the MRI findings such as abnormal T2 signal and swelling in his brainstem. While he was followed up, he gradually presented mental change, disorientation and dysmnesia with the abnormal T2 signal spreading over the cerebral white matter bilaterally. Corticosteroid therapy was started based on the suspicion of a lymphoproliferative disease, and his symptoms and the abnormal MRI findings improved. Then he was referred to our department for further evaluation. Because we could not find any evidence of systemic diseases and he had been almost fully recovered, we discontinued the therapy. Soon after that, his mental deterioration as well as the abnormal T2 signal lesions on MRI relapsed. By open brain biopsy, the diagnosis of GACNS was established, and steroid pulse therapy was started. His symptoms and the abnormal T2 signal lesions improved gradually and the steroid was tapered to the maintenance dose without remission. Since the laboratory and imaging findings are not specific for the diagnosis of the angiitis confined to the central nervous system, brain biopsy is recommended for these disorders.
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PMID:[A case of granulomatous angiitis of the central nervous system presented with subacute mental deterioration resembling diffuse white matter disease]. 1188 33


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