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Biomedical subjects

J Lukács

Publications and source records attributed to J Lukács.

At least 19 recordsLinked to original sources

[Increased right hemisphere activation dominance in bronchial asthma].

In our study 16 patients suffering in asthma bronchiale were compared with 16 healthy controls in relating to hemispherical activational dominance assessed by the analysing of electrodermal response features. In accordance with others' findings our results show that the asthmatic patients' group as a whole have more activated right hemisphere compared to the controls' group. In the present issue the possible pathogenic role of the right hemisphere in asthma bronchiale is reviewed and the risk factors which during pregnancy increase the risk of the siblings to become atopic are discussed.

Asthma↗

[Non-malignant cells in pleural fluid].

Insufficient attention has been paid to the cytological examination of cellular elements of the pleural fluid besides or in the absence of tumour cells. 108 cases studied due to pleural fluid were selected. They were characterized by the following: 1. each had histological diagnosis established by either pleuroscopy or by pleural needle biopsy and 2. neither of the samples contained tumour cells. Relationship of the dominant cell type and the ethiology of the pleural fluid was analysed. In case of punctates rich in lymphocytes further cytopathological differentiation is possible, e.g. in case of tuberculotic origin the absence of large mesothelial cells with Giemsa-basophilic cytoplasm is rather characteristic. The use of bioptic methods in the clarification of the origin of pleural fluid is still indispensible.

Biopsy, Needle↗

[Infantile coronary fibroelastosis].

Two cases of fibroelastosis of the coronary arteries in infants are reported. The fibroelastosis was complicated with coronary thrombosis. Histologically isolated proliferation of the intima, fibrosis of the media and disintegration of the lamina elastica interna was found.

Child, Preschool↗

[Recent results of intraoperative cytodiagnosis in thoracic diseases (author's transl)].

The intraoperative cytological quick-examinations and quick-tests may influence way and type of the operation in cases of uncertain nature. They may lead to the fact that the original schedule of operation is kept to or changed. Thus, the operation is performed according to the situation, and lung tissue may be saved. Therefore, the possibility of a rapid diagnosis during the operation is of great importance. It is, however, often difficult or risky due to a potential tumour transplantation or due to other complications, to obtain respective tissue material for histological examination, above all, in such cases where the foci are located very deeply in the lung parenchyma. Therefore, the authors deal with the cytological examinations of 216 tissue samples taken from 187 patients intraoperatively (obtained by thoracotomy: 119 cases, by mediastinoscopy: 57 cases, by various surgical interventions: 20 cases). In 155 cases (82 per cent) the findings proved to be rightly positive or negative with regard to their malignity. The histological type diagnosis was correct in 79 per cent of all tumours. In 94 per cent of the nonmalignant processes the cytological finding was negative; besides, the authors point to the histological diagnosis of several types of benign tumours, Boeck-sarcoidoses, tuberculoses, other granulomatoses etc.

Adult↗

Heart block: histological and clinical features.

The clinical types of A-V-block and the localization of the underlying lesion to the conduction pathway have been examined in 25 patients. On the evidence of the post mortem studies the lesions were of the following types: 1) Necrosis or fibrosis of ischaemic origin: 13 cases; 2) lesions of inflammatory character: 5 cases; 3) nonspecific lesions; 6 cases; 4) malignant infiltration: one case. Correlations between the site of lesion and the clinical type and pattern of block could be demonstrated in a large proportion of the cases. The characteristic features of the individual types of block and their localization are discussed and a review of the literature is given.

Acute Disease↗