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Query: EC:1.11.1.6 (catalase)
 55,569 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

A study is made of the diagnostic value of computerized axial tomographies in 57 patients suffering from urogenital pathology. Only three mistakes which may be attributed to a wrong assessment of the sections support its high degree of reliability. The CAT does not replace the intravenous urography. With regard to other more aggressive means (angiography, endoscopy) or less determining ones (isotopes, ultrasounds), it establishes some stricter indications for the same. The main indications of the CAT in Urology are the study of non-cystic, kidney masses as well as non-functioning kidneys, retroperitoneum and suprarenal glands and finally the establishment of the tumoural stage of prostate, bladder and testicle neoformations. The future of the CAT offers great possibilities as certain technical problems are solved and at the same time as greater experience is gained and its price reduced, all of which constitute factors which currently limit its clinical use.
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PMID:[Diagnostic value of computerized axial tomography in urology]. 50 45

Nine cases of hydatid disease are presented. CAT scans were done in each case. Radioisotope and ultrasound scans were also carried out in appropriate cases. CAT and ultrasound scans give characteristic appearances particularly when daughter cysts are present. CAT scans have the advantage of better resolution, and cyst density can be measured in terms of EMI units.
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PMID:Scanning in hydatid disease. 50 71

The proximo-distal intra-axonal transport of acetylcholine (ACh) and cholinergic enzymes (choline acetyltransferase, CAT, and ACh-esterase, AChE) in rat regenerating sciatic nerve was studied by accumulation technique. Four types of axonal trauma were performed: freezing with solid CO2, crushing, ligating the nerve with remaining tight silk ligature, and cutting the nerve. Normal and sham-operated rats were used as controls. One to twenty-nine days later, the nerves were crushed about 15 mm proximal to the trauma. The nerve segment proximal to this crush was dissected out 12 hr later and assayed for ACh-content and enzyme activities. The increase in this segment 12 hr after crushing was taken as an indication of proximo-distal transport in the regenerating nerves. ACh transport did not seem to vary during regeneration as compared to controls. In contrast, the transport of both CAT and AChE was initially markedly depressed. Towards the end of the observation period (29 days), a recovery of CAT-transport occurred in all groups. Recovery of AChE-transport was marked in the freeze and crush groups. In the cut group no recovery was seen and in the ligated group only a small recovery occurred. Thus, in the nerves where regeneration was facilitated by the presence of intact connective tissue sheaths (freezing and crushing) recovery of transport occurred earlier than in cut or ligated nerves.
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PMID:The intra-axonal transport of acetylcholine and cholinergic enzymes in rat sciatic nerve during regeneration after various types of axonal trauma. 51 53

The case history of a patient with a retained wooden orbital foreign body is presented. The report illustrates the diagnostic limitations of orbital CAT scanning and ultrasonography. Systemic corticosteroid therapy facilitated the localisation and surgical removal of the foreign body.
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PMID:Diagnosis and management of a wooden orbital foreign body: case report. 52 68

Authors present results of diagnosis at surgical treatment of 122 patients with compressive intracranial haemorrhages, observed and treated in the course of last five years. All patients have been admitted and treated at the Department for intensive care of patients, and have been under care of one neurosurgeon and anestetists duty and radiologists. 18 patients had chronical subdural haematoma, and 104-patients had acute compressive intracranial haemorrhages: epidural, subdural and intracerebral, one more haemorrhages in the same patient, hygromas, and sclopetar wounds with fast evolution. Out of 104 patients, 25 died (mortality rate 24%), and 26 patients died out of 122 patients (mortality rate being 21,3%). Authors enphesize the value of eho-encefalography and CAT of brain in the manengement of compressive inte cranial haemorrhages in the state of peace and in the state of war.
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PMID:[Diagnosis and surgical treatment of endocranial compressive hemorrhage]. 53 30

Interhemispheric subdural empyema complicating sinusitis was diagnosed in two children by CAT scan. One of them presented with intracranial hypertension and paresis of one foot (syndrome of the falx cerebri). Antibiotic treatment alone without surgery (in one case with brief initial steroid therapy) brought rapid and complete clinical and radiological cure. A nonsurgical approach can now be considered in certain cases of intracranial local suppurations, given the possibility of earlier and more precise initial diagnosis and follow-up with CAT scan.
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PMID:Nonsurgical treatment of interhemispheric subdural empyemas. 54 Dec 20

Four children with migraine raised some problems of differential diagnosis (cerebral circulatory disorders; structural brain diseases; or primary psychiatric disorders). Organic lesions were excluded through special investigations (EEG, CAT, Scintigraphy, Angiography etc.). Relationships between migraine and epilepsy in children were considered and the recent literature was reviewed. No agreement was reached on how to evaluate paroxysmal electroencephalograms recorded during migrainous episodes. In a child with personal and family history of migraine suffering from a sudden attack of acute headache accompanied by focal neurological deficits, migraine is the most likely diagnosis. Only if the neurological deficit fails to resolve rapidly (after a few hours), a detailed investigation is necessary (CAT etc.). A paroxysmal electroencephalogram during the attack of migraine does not imply necessarily a diagnosis of epilepsy. Children with history of migraine must be treated with specific anti-migranious drugs even if paroxysmal EEGs are recorded during the migraine attack. It must be remembered that both disorders (i.e. migraine and epilepsy) can exist in the same patient.
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PMID:[Hemicrania in children: diagnostic and therapeutic problems (author's transl)]. 54 16

A 46-year-old female presented with a 1-week history of mental change, confusion and headaches. Investigations revealed evidence of sterile meningitis. CAT scanning of the brain demonstrated marked contrast enhancement around the ependyma, and later examinations showed extension of the process deep into the white matter, Cerebral biopsies were non-diagnostic and, despite ventricular drainage and treatment with antibiotics and high dose steriods, the patent died. At postmortem there was extensive tumour tissue distributed in a butterfly shape around the ventricles, and microscopy revealed typical apperances of primary CNS lymphoma. On the basis of the experience of this case and a review of recent literature, it is suggested that the CAT scan appearances of this tumour are quite typical, and that cranial irradiation may be justified in the absence of specific histological diagnosis.
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PMID:Primary lymphoma of the central nervous system: a case report. 55 Sep 37

A description is given of the dramatic, sustained recovery of 3 demented and neurologically disable patients with idiopathic communicating hydrocephalus after they underwent ventriculo-atrial shunting. In those patients there was no significant change in ventricular size after the ventriculo-atrial shunting. 1 of the patients also had cortical atrophy. Hypertensive vasculopathy and multiple infarcts may be the explanation in 2 of the patients. Reveiw of the literature results in the following conclusions: 1) the CAT scan alone, perhaps combined with intrathecal "Amipaque' cisternography, provides the maximum information with the last trauma and may assist in the selection of patients for shunting. 2) Test removal of 20 to 30ml of CSF may be as satisfactory as pressure monitoring and infusion techniques in the prediction of successful shunting. The following do not have a reliable predictive value: a) The presence of cortical atrophy (shunting may sometimes be effective in mild to moderate cortical atrophy) b) The period of onset of symptoms c) The ventricular size before shunting and its alteration after shunting.
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PMID:Idiopathic communicating hydrocephalus: the prognostic significane of ventricular size after shunting. 55 Sep 38

11 patients with a diagnosis of leucodystrophy are reported. In 9 the CAT scan was abnormal and showed areas of markedly decreased density in the white matter. 3 of these patients had adrenoleucodystrophy. In 2, contrast enhancement at the anterior borders of the low density areas was present. The 2 negative scans were from children with metachromatic leucodystrophy; one had an atypical form of the disease and the other had the biochemical defect, but was still presymptomatic and had no neurological deficit.
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PMID:Computerised tomography in the leucodystrophies. 55 Sep 51


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