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Biomedical subjects

M Hagert

Publications and source records attributed to M Hagert.

14 recordsLinked to original sources

[Coronarography findings following systemic short-term lysis of acute myocardial infarct].

In 50 patients with acute infarction who were admitted within 6 hours after the beginning of the complaints randomizedly an intravenous streptokinase short-term lysis or a conventional heparin phenprocoumon treatment was performed and 4 weeks later the results were objectified by coronarography and ventriculography. The patients were subdivided into 3 groups: 1. control group (without fibrinolysis), 2. early lysis (within 4 hours) and 3. late lysis (4-6 hours). Four weeks after the infarction the proportions of the open infarction vessels are approximately of the same size in all three groups, the functional results are best (end-diastolic pressure and kinetics of the cardiac wall) in the group of patients who underwent an early lysis. Successfully lysed patients with remaining residual stenosis must be regarded as particularly threatened by infarction and remain under special control (residual angina, ergometrically objectified exercise tolerance, perhaps coronarography) in the phase of rehabilitation.

Aspirin

[Clinical experiences with systemic high-dosage short-term fibrinolysis in acute myocardial infarct].

In 50 patients with acute myocardial infarction the systemic highly dosed short-term lysis with streptokinase took place within the 6-hour limit. 27 patients showed a normalisation of the ST-distance still during the treatment, 16 of whom did not develop any signs of necrosis in the ECG also in the further course. Pre-existing disturbances of rhythm receded under the infusion of streptokinase in 8 of 9 patients. In 11 patients arrhythmias appeared under the lysis, which could be brought under control in intensive-medical conditions. 4 patients died, 1 patient suffered a re-infarction. The results of the treatment were better, when the fibrinolysis began within 3 hours after the acute onset. Severe side effects did not appear.

Adult

[Serum immunoglobulins and third complement component in and after acute non-A/non-B hepatitis (author's transl)].

The serum levels of IgG, IgA, IgM, IgD and IgE and of the third complement component (C 3) were determined by the single radial immunodiffusion method in 69 serum samples of 34 female patients during (2nd and 4th week) acute non-A/non-B hepatitis and 2 years after infection. The levels were compared with those of circulating immune complexes measured by polyethylene glycol precipitation method. The levels of immunoglobulins and C 3 were similar to those of healthy persons. During the course of disease there were no significant relations with exception of an increase of IgD levels in patients with chronic course. The positive correlation of the levels of IgM and immune complexes at the first and second serum sample (r = 0,5914, r = 0,6366 respectively, p less than 0,001) could not be verified in patients with noncomplicated course (r = 0,203 8, n. s.) but it was highly significant in patients with chronic course (r = 0,9429, p less than 0,001). Determinations of immunoglobulins and immune complexes may therefore be prognostically helpful in patients with non-A/non-B hepatitis.

Adult

[Circulating autoantibodies and immune complexes in and after acute non-A/non-B hepatitis].

Serum samples from 35 female patients with and after acute non-A/non-B-hepatitis following application of human immunoglobulin "Anti-D (Rh0)" were tested for circulating antibodies against nuclei, smooth muscle, vascular endothelium connective tissue, mitochondria, ribosomes, endoplasmatic reticulum, stomach parietal cells, and other by indirect immunofluorescence and for circulating immune complexes by polyethylene glycol method. Tests were performed twice in the first weeks of illness and about 2 years after infection. 5 patients (14%) had increased levels of immune complexes, detected only in the early stage of illness. The most important early antibodies were low titre IgG-antibodies against smooth muscle antigens (68%), connective tissue (27%) and IgM-rat heart antinuclear factors (31%). 2 patients with recidival and chronic hepatitis had IgG-antimitochondrial antibodies 2 years after infection (titre I : 40 and I : 160). The results suggest, that special antibodies could be involved in the course of special form of non-A/non-B hepatitis.

Adolescent

[Estimation of inflammatory activity in chronic rheumatic heart disease].

The difficulties in the activity diagnostics of chronic rheumatic heart diseases are explained. With the help of an antihuman myocardium immune serum of the goat 4 myocardiac, with the usual serum proteins non-identical antigens could be obtained, one of which was to be found in the serum of patients with florid carditis. Its proof was successful in 59 patients with carditis reactivation in 83%, in 93 patients without clinical and paraclinical signs of activity, however, only in 23%. Inpatients with myocardial infarction one part of the sera investigated reacted postively, in which case a temporary dependence on the acute process could be established. Of 100 sera of blood donors 4% had positive findings. Cross reactions with the pericardium refer to relations to antigens of the connective tissue. An identity with C-reactive protein could be excluded. The results of the examination are compared with usual activity parameters and with the findings in the antiglobulin consumption test after Steffen, taking into consideration the degree of activity. The proof of the circulating tissue antigen may serve for the enlargement of the diagnostic spectre in the judgment of the activity of carditic processes.

Antigens

[Circulating tissue antigens in inflammatory heart disease].

Experiments with an antipericardium immune serum of the goat resulted in the proof of two not identical with serum proteins antigens in the pericardium. By means of the same antiserum with the help of the gel diffusion technique after Ouchterlony and immunoelectrophoresis the sera of patients with carditis or myocardial infarction, respectively, were examined for the presence of circulating tissue antigens. In 20 out of 23 patients with carditis 1 or 2 antigens were found which were not identical with normal serum proteins. In 27 cases of myocardial infarction their proof was successful only in 4 patients, in complication by a post-myocardial infarction syndrome in 2 out of 3 cases. In comparative investigations of sera of 100 healthy persons only 4 test persons showed a positive result. There was no clue for the identity of one of the antigens proved with C-reactive protein.

Animals

[Pictures of the fascicular block inacute myocardial infarct with special reference to left anterior hemiblock and the bifascicular block of the anterior type].

In the etiology of uni, bi- and trifascicular block pictures the acute myocardial infarction plays an important role. From the topographic relations of the supply of coronary vessels to the coduction system certain correlations between localisation of infarction and kind of blocking are to be explained. The electrocardiographic changes of the individual block pictures are explained. 765 (581 males, 184 females) patients with acute myocardial infarction were examined concerning frequency and prognosis of the left anterior hemiblock and the bifascular block of anterior type (left anterior hemiblock, right bundle branch block). A left anterior hemiblock could be proved in 90 cases (11.8%), a bifascicular block of anterior type in 38 cases (5%). With 30% the lethality of the first group was not essentially above the lethality of patients with infarction without block pictures (29.6%). In patients with bifascicular block of anterior type it was significantly incrased with 68.4%. The two block forms were nearly exclusively found in the anterior wall infarction and its combination with a posterior wall infarction, respectively. 11 patients, out of whom 9 died, showed a transition of the bifascicular block into a trifascicular one. In 6 cases a left anterior hemiblock had preceded. The results concerning frequency and prognosis much correspond with the reports of other authors. In the bifascicular block, apart from the danger of a sudden asystolia, also the most cases larger size of the extension of the infarction with the adequately higher risk of a muscular insuficiency might be responsible for the bad prognosis. The therapeutic possibilities and necessities deriving from this are explained.

Acute Disease