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Biomedical subjects

G Doerfel

Publications and source records attributed to G Doerfel.

6 recordsLinked to original sources
PubMed1985

Apparent slant of moving targets on T.V. screens.

When moving a vertical black and white bar pattern horizontally across a T.V. screen there appears to exist a slant of the pattern depending on movement velocity. Subjects were asked to compensate this geometrical distortion by adjusting a potentiometer. Results show a clear difference between theoretical and actual data where apparent slant of the vertical pattern was always smaller than calculated. Further research work should be done in order to investigate the influence of this effect on the perception of electronically generated and displayed scenes.

Adult↗
PubMed1980

[Analysis and trends of treatment in cancer of the lung (author's transl)].

From 1953 to 1978 3439 patients suffering from bronchial carcinoma underwent operation. Due to the changing conditions of mass X-ray early detection of lung cancer decreased. This was followed by a declining number of operations but also by an increase in pneumonectomies (1974 to 1978). The average number of exploratory thoracotomies amounts now to 14% with increasing tendency, especially in patients younger than 50 years of age. Above 70 years lung resections are only possible in rare cases. The postoperative mortality rate (till 4 weeks after surgery) is now at 1,0%. After resection or pneumonectomy more than 40% of the patients will survive for 5 years. The authors recommend lung resection--if technically possible--also in a progredient state of the tumour.

Adult↗
PubMed1977

[Anaestesiologic problems after lung surgery (author's transl)].

Important complications after lung surgery are alveolar hypoventilation and post-operative haemorrhage. Measures to prevent the first are intermittent PEEP-aerosol respiration and thorough bronchial toilet. The diagnosis and management of postoperative haemorrhage are outlined. Cardiorepiratory failures may be prevented in most cases.

Anesthesia, General↗