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Biomedical subjects

M Wágner

Publications and source records attributed to M Wágner.

4 recordsLinked to original sources

Compensatory hyperkinesis of the ventricular walls in acute myocardial ischaemia.

After ligation of the anterior descending coronary artery in dogs, conductance of the left circumflex branch and contractility of the ventricular muscular areas supplied by the left descending coronary artery and its circumflex branch were studied over 60 min. After ligation a considerable increase in contractility of the myocardial areas of the posterior wall with intact blood supply was found and a further increase parallel with a considerably enhanced flow in the circumflex branch. At the same time the contractile power of the anterior ventricular myocardium with a poor blood supply greatly decreased. A close correlation was found between the increase in flow in the circumflex branch and the increase in contractility of the intact areas. The tissue catecholamine level showed a marked increase in the myocardial areas with impaired blood supply.

Acute Disease↗

Neuroborreliosis in county Baranya, Hungary.

The incidence and clinical characteristics of Lyme neuroborreliosis (NB) in a region of high prevalence of tick-bite in Hungary is described. In the county Baranya 66 patients were recorded in a five-year period (1989-93). Fifty-six patients (85%) were in "early", and 10 patients (15%) in "late stage" of NB. The sex distribution was equal. The incidence of NB was 2.9-100,000/year in this region. The incidence of radiculitis/neuritis, meningitis, encephalitis and myelitis in the sample was 56.1%, 19.7%, 18.2% and 6%, respectively. The EEG and evoked potentials showed both central and peripheral neural involvement, EMG and ENG abnormalities were related to the peripheral clinical signs. Non-specific white matter lesions could be found by MRI in 5 patients with central involvement. Cerebrospinal fluid changes were not obligatory but a better indicator of inflammatory process in cases with meningitis and/or encephalitis forms (positivity 75%) than in cases with myelitis and radiculitis (positivity 49%).

Adolescent↗