1/58. Severe stenosis of the internal carotid artery presenting as loss of consciousness due to the presence of a primitive hypoglossal artery: a case report.BACKGROUND: Symptoms of ischemic attacks in the internal carotid system usually involve focal cerebral dysfunction, i.e., hemiparesis or aphasia. However, an ischemic attack in the vertebrobasilar artery system usually presents with combined symptoms. The variety of manifestations included in the vertebrobasilar profile makes the potential pattern of symptoms considerably more variable and complex than that in the carotid system. Manifestations can include syncope and also vertigo. METHOD AND RESULTS: A 42-year-old woman experienced frequent attacks of faintness with vertigo. angiography demonstrated severe stenosis of the left internal carotid artery with a persistent primitive hypoglossal artery just distal to the stenosis. The right internal carotid artery was normal and cross circulation through the anterior communicating artery was not well developed. Both vertebral arteries were hypoplastic. The patient underwent carotid endarterectomy and, thereafter the episodes of syncope completely disappeared. CONCLUSION: It was supposed that global ischemia including the brain stem occurred because of stenosis of the left internal carotid artery attributable to the presence of a primitive hypoglossal artery.- - - - - - - - - - ranking = 1keywords = cerebral, brain (Clic here for more details about this article) |
2/58. Gas embolism during hysteroscopy.PURPOSE: Gas embolism during hysteroscopy is rare but sometimes fatal. A fatal case of gas embolism during diagnostic hysteroscopy using carbon dioxide (CO2) is presented. CLINICAL FEATURES: A 68 yr old woman was admitted for treatment of myoma and cancer of the uterus. hysteroscopy using CO2 was performed without monitoring or anesthesia on the ward. At the end of the examination, just after the hysteroscope was removed, she developed tonic convulsions, lost consciousness, and her pulse was impalpable. Cardiac massage was started, anesthesiologists were called and the trachea was intubated. She was transferred to the intensive care unit with continuous cardiac massage. Cardiac resuscitation was successful. A central venous line was inserted into the right ventricle under echocardiography in an attempt to aspirate gas with the patient in the Trendelenberg position, but the aspiration failed. Positive end expiratory pressure and heparin for emboli, midazolam for brain protection, and catecholamines were administered. Fifteen hours after resuscitation, the pupils were enlarged and she died 25 hr after resuscitation. CONCLUSION: Gas embolism is a rare complication of hysteroscopy. The procedure should be performed with monitoring of blood pressure, heart rate, oxygen saturation and end-tidal CO2 concentration.- - - - - - - - - - ranking = 0.031245969496541keywords = brain (Clic here for more details about this article) |
3/58. Familial fatal and near-fatal third ventricle colloid cysts.BACKGROUND: Despite having a presumed congenital origin, familial cases of colloid cysts have been reported only rarely. The first case of a brother and sister with colloid cysts is reported here, and the relevant literature is reviewed. methods: A 25-year-old man presented with a 24-h history of headache and vomiting. He rapidly became unconscious and fulfilled the criteria for brain death on arrival at hospital. No surgical intervention was performed. RESULTS: The patient's sister presented at the age of 41 with headaches and rapidly became unconscious. The sister had urgent bilateral ventriculostomies. followed by transcallosal removal of a colloid cyst. CONCLUSIONS: These cases support the hypothesis that colloid cysts are congenital lesions and provide some evidence of a possible genetic predisposition to their formation. Sudden death remains a real risk for patients harbouring a colloid cyst.- - - - - - - - - - ranking = 0.031245969496541keywords = brain (Clic here for more details about this article) |
4/58. MRI demonstration of intracerebral cryptococcal granuloma.We report an intracerebral cryptococcal granuloma in a patient who presented with recent memory disturbance and deteriorating mental status followed by temporary loss of consciousness. To our knowledge, this is the first reported case of an intracerebral cryptococcal granuloma examined by a combination of conventional MRI, fluid-attenuated inversion-recovery and diffusion-weighted imaging and in which the surgical specimen was analysed histochemically.- - - - - - - - - - ranking = 9.0066029794911keywords = cerebral, intracerebral (Clic here for more details about this article) |
5/58. Multiple oligodendroglioma: case report.An 18-year-old female patient was hospitalized with headache and disturbance of consciousness. magnetic resonance imaging (MRI) revealed a tumor in the left parieto-occipital lobe. The tumor was totally removed, and postoperative radiation therapy was administered locally at 50 Gy. Ten months later, she experienced sudden onset of unconsciousness and headache. Computed tomography (CT) and MRI demonstrated multiple mass lesions in the whole brain. Following the systemic chemotherapy, removal of the largest tumor was performed. Histological examination proved all excised tumors to be oligodendroglioma without evidence of malignant change.- - - - - - - - - - ranking = 0.031245969496541keywords = brain (Clic here for more details about this article) |
6/58. naltrexone: effects on motor function, speech, and activities of daily living in a patient with traumatic brain injury.Evidence from many studies has suggested that endogenous opioid peptides participate in a number of pathophysiological responses to brain injury. This provides the rationale for the use of opioid antagonists for the enhancement of neural recovery after brain injury. A case is presented of an 18-year-old male who had loss of consciousness for 1 month after a severe brain injury. Three months of intensive rehabilitative therapies did not change his functional status. A trial of naltrexone was given while his performance in mobility, speech and overall Functional Independence Measure (FIM) scores were monitored. Results indicate an accelerated improvement in functional status and statistically improved FIM score.- - - - - - - - - - ranking = 0.21872178647579keywords = brain (Clic here for more details about this article) |
7/58. CT scans essential after posttraumatic loss of consciousness.The frequency of "talk and deteriorate" in the emergency department (ED), subsequent deterioration of patients with seemingly "mild" head injury at the time of presentation, is summarized. Among the 1,073 patients with minor head injury treated in the last 5 years, five patients (0.5%) deteriorated in the ED. All of the five patients had experienced transient loss of consciousness (LOC) before presentation. Deterioration had occurred during treatment of trivial associated injuries in four-fifths of the cases. Computed tomography (CT) scans revealed four acute epidural hematomas and one cerebellar contusion. Retrospectively, immediate brain CT shortly after their arrival may have revealed the presence of traumatic intracranial hematomas before deterioration. Although routine use of CT scans in patients with mild head injury has been controversial, the authors conclude that CT scans should be taken if patients have experienced transient LOC to prevent or reduce the occurrence of deterioration in ED.- - - - - - - - - - ranking = 0.031245969496541keywords = brain (Clic here for more details about this article) |
8/58. Reversible delayed leukoencephalopathy following intravenous heroin overdose.We present serial neuropsychological, magnetic resonance (MR) imaging and EEG changes in a case of widespread CNS myelinopathy due to intravenous heroin overdose complicated by a period of prolonged unconsciousness. Following recovery from the acute overdose, the subject had the delayed onset of akinetic mutism with urinary incontinence. Sequential formal neuro-psychological assessments over 9 months showed evolution from severe global cerebral dysfunction to moderate disturbance of frontal lobe function. Almost complete resolution of diffuse white matter signal changes, accompanied by the development of a degree of volume loss, was evident on serial MR imaging over the same period, and generalized arrhythmic delta-range slowing on the EEG evolved int o a near normal pattern.- - - - - - - - - - ranking = 0.96875403050346keywords = cerebral (Clic here for more details about this article) |
9/58. Cerebellar mutism caused by arteriovenous malformation of the vermis.Transient mutism following posterior fossa tumour resection in children is well known in the literature. To our knowledge, this phenomenon has never been reported without surgical intervention. We report a case of cerebellar mutism secondary haemorrhage from a vermian arteriovenous malformation (AVM), which resolved to ataxic dysarthria after 6 weeks. Embolization of the AVM was performed and the patient's clinical status continued to improve gradually till she became normal 6 months from the insult. The mutism was due to rupture of the AVM which might correlate the cerebellar mutism with the transient vasospasm of the blood vessels supplying the cerebellum. It is possible for a spontaneus posterior fossa bleed to result in transient mutism similar to post surgical mutism.- - - - - - - - - - ranking = 1.254505735465keywords = haemorrhage (Clic here for more details about this article) |
10/58. Benign occipital epilepsy mimicking a catastrophic intracranial event.OBJECTIVE: To describe the rare, dramatic, presentation of benign occipital epilepsy. methods: We describe three children who presented to the pediatric emergency department from 1992 to 1996 with a clinical picture of catastrophic intracranial event. RESULTS: The main signs and symptoms were loss of consciousness in all patients, apnea in two, hemiclonus in two, general hypertonicity in two, eye deviation in two, fixed dilated pupils in one, and decorticate rigidity in two. All underwent emergency intubation, brain scan, and lumbar puncture, and all were treated with antibiotics, in addition to antiviral drugs in two. Two patients were also treated for suspected increased intracranial pressure. Two patients recovered within a few hours and one within 24 hours of admission without any residual neurologic deficit. Electroencephalograms, done within 48 hours after the event, revealed the classic pattern of occipital epilepsy in two patients and bilateral occipital slow wave in one. A 3- to 5-year clinical and electroencephalographic follow-up supported the diagnosis. CONCLUSION: Benign occipital epilepsy in children can mimic a catastrophic intracranial event. electroencephalography, performed early in the Pediatric intensive care Unit, may avoid or shorten unnecessary and aggressive treatments such as hyperventilation, diuretic agents, and prolonged antiviral therapy.- - - - - - - - - - ranking = 0.031245969496541keywords = brain (Clic here for more details about this article) |
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