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Query: UMLS:C0036341 (schizophrenia)
 60,220 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The clinical features that distinguish schizophrenia from the symptomatic psychoses were seen in a patient whose complex partial seizures remained undiagnosed for five years, resulting in 30 psychiatric hospitalizations.
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PMID:Complex partial seizures simulating schizophrenia . 57 79

The EEGs of hospitalized psychotic boys were analyzed quantitatively by means of visual evaluation, analog frequency analysis, and digital computer period analysis and were compared with those of age- and sex-matched normals. Visual evaluation of the records demonstrated that psychotic children have significantly more beta activity as well as fewer alpha bursts than normal controls. EEG analog frequency analysis showed that psychotic children have a greater percentage of total voltage in the 3-5 cps and 13-33 cps bands, while they show less voltage in the 6-12 cps bands as compared with normal controls. Digital computer period analysis demonstrated more slow, less alpha, and more fast activity, as well as a greater average frequency and frequency deviation in both the primary wave and first derivative measurements in psychotic children than normals, while normals showed a trend towards higher amplitude and amplitude variability. The similarity of the EEG differences between psychotic and normal children to those differences observed between adult chronic schizophrenics and normals, as well as to those between children of "high risk" for becoming schizophrenic and controls, suggests that the above described findings are characteristic for the pathophysiology of schizophrenia.
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PMID:Qualitative and quantitative EEG in psychotic children. 126 43

The case of a patient with symptoms suggestive of a dissociative disorder is presented. The consultant reviews the diagnosis of multiple personality disorder (MPD) as defined in DSM-III-R and DSM-IV in relation to the patient's dissociative states, hallucinations, memory loss, and other symptoms. He then highlights the distinctions among MPD, schizophrenia, borderline personality disorder, major depression, and complex partial seizures. After presenting the conceptualization of MPD as a chronic posttraumatic stress disorder, he concludes with a review of treatment approaches that address the traumatic history and that involve hypnosis to gain access to and control dissociative states.
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PMID:A case of probable dissociative disorder. 135 64

1. Complex partial seizures are closely associated with a group of discrete neuropathological entities which include focal lesions (such as hamartomas and heterotopias) and small vascular lesions, all of which are generally considered to have been present at birth. 2. The pathological change most frequently found in patients with temporal lobe epilepsy is mesiotemporal sclerosis. Although this pathological alteration in subicular and hippocampal structures has been attributed to any one of a number of perinatal or postnatal insults, we suggest that it also may represent a sequela of disturbed neuroembryogenesis. 3. We suggest that many, perhaps most, cases of temporal lobe epilepsy may resemble other major disorders of cognition and behavior (such as schizophrenia) in representing the sequelae of temporal lobe dysgenesis.
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PMID:Are complex partial seizures a sequela of temporal lobe dysgenesis? 200 24

I have reported a case of coexisting schizophrenia and complex partial seizures to augment earlier reports of schizophrenia and psychomotor seizures masquerading as one another. I have attempted to clarify the differential diagnosis and reinforce the need to do thorough studies in such cases.
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PMID:Temporal lobe epilepsy with schizophrenia. 361 4

Data are presented on 24 patients with epilepsy and psychosis whose clinical presentation was rated using the Present State Examination (PSE). Seventeen had complex partial seizures and a diagnosis of temporal lobe epilepsy, seven had generalised epilepsy. An association between a CATEGO category of nuclear schizophrenia (NS) and a lesion of the left side was noted. No clear link between depressive symptoms and a right-sided focus was discovered. Affective disorders were noted in both groups of epileptic patients, although paranoid psychoses were commoner in the temporal lobe group. There was also a tendency for the latter to have more delusions of persecution, ideas of reference, and special features of depression. The group rated as NS appear less likely to show evidence of intellectual deterioration than the other psychotic patients; in addition, the interval between the onset of their epilepsy and the onset of their psychosis is shorter. Radiological assessment by CAT reveals few differences between groups, but the psychotic samples do show higher than expected values on a number of variables, in particular the bilateral septum-caudate distance and the size of the third and fourth ventricle.
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PMID:Epileptic psychosis: an evaluation of PSE profiles. 397 33

Ten epileptic patients developed interictal psychosis while being treated in hospital for seizure control. They were subjected to intensive behavioral, video-electroencephalographic, and serum anticonvulsant monitoring for an average of 7.1 weeks in a specialized epilepsy unit. In 9 patients, the interictal psychosis was indistinguishable from acute schizophrenia. Only 5 of these patients had complex partial seizures; the other 4 showed evidence of generalized epilepsies. Thus a "unique" association between schizophreniform psychosis and complex partial seizures, noted by previous authors, could not be confirmed. Only 1 patient showed normalization of the electroencephalogram during psychosis and an inverse relationship between psychosis and seizure frequency. In most cases the emergence of psychosis could not be explained. Interictal psychosis in epilepsy appears to be a spectrum of disorders that may be multifactorially determined.
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PMID:Intensive monitoring of interictal psychosis in epilepsy. 711 11

Aggressive behaviour in epileptics may have many causes which are connected more or less closely with epilepsy. Ictal aggression is very rare. In the case of a patient with complex partial seizures and a schizophrenia-like psychosis different forms of generation of aggressive behaviour are discussed.
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PMID:[Differential diagnosis of aggressive behavior in epilepsy]. 789 36

MB suffered an episode of status epilepticus of febrile origin at the age of 20 months. This was followed at two years by complex partial seizures of temporal lobe origin and at eight years he had learning difficulties arising from the dominant hemisphere. Subsequent symptoms included auditory, visual and olfactory hallucinations which were not controlled by antipsychotics or antiepileptics. EEG and MRI were unhelpful and alternating diagnoses of schizophrenia and temporal lobe epilepsy were made. Now aged 17 years, he has a diagnosis of schizophreniform psychosis with temporal lobe abnormality from status epilepticus in childhood, and is managed by an adult psychiatrist. His symptoms persist.
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PMID:Psychosis or epilepsy--a diagnostic and management quandary. 789 50

The hypofrontality theory of the pathogenesis of schizophrenia predicts that cortical lesions cause psychosis. During a search for abnormalities of catecholaminergic neurotransmission in patients with complex partial seizures of the mesial temporal lobe, we discovered an increase of the rate of metabolism of an exogenous dopa tracer (6-[18F]fluoro-L-dopa) in the neostriatum of a subgroup of patients with a history of psychosis. When specifically assayed for this abnormality, patients with schizophrenia revealed the same significant increase of the rate of metabolism in the striatum. The finding is consistent with the theory that a state of psychosis arises when episodic dopamine excess is superimposed on a trait of basic dopamine deficiency in the striatum. The finding is explained by the hypothesis that cortical insufficiency, a proposed pathogenetic mechanism of both disorders, causes an up-regulation of the enzymes responsible for dopa turnover in the neostriatum as well as the receptors mediating dopaminergic neurotransmission.
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PMID:Elevated dopa decarboxylase activity in living brain of patients with psychosis. 797 18


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