Biomedical subjects
Publications and source records attributed to H Voigt.
Venous diseases are of interest to gerontology because 1. the morbidity in connection with venous diseases in both men and women increases almost linearly with age 2. more complications, some of them fatal, must be anticipated and 3. a greater percentage of secondary and primary diseases are recorded than in younger people, which must always be included in therapeutic planning.
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Acute diseases of the veins, in most cases thromboses, cause inability to work in almost all cases; in profound phlebothromboses hospital treatment is indicated. In the chronic venous insufficiency the functional capacity can be decreased especially bey pains, inclination to swelling and changes of the skin (congestive dermatoses, ulcera). Eventual basic diseases and concomitant diseases render the judgment difficult. Experienced treatment under active collaboration of the patient may improve the functional capacity in most cases. The daily load of the patient by profession and so on, and the often changing course of chronic diseases of the veins must be taken into consideration in the estimation. On the basis of a stage-plan proposed by Kornotzki and coworders the evidence of selected phlebological methods (anamnesis, state, tourniquet-tests, measurement of the venous pressure, functional phlebography) is discussed. It is particularly referred to plethysmographic functional tests of the veins.
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From 1970 to 1974 in the dermatological clinic of Leipig University in 17 women and 3 men a necrobiosis lipoidica was established. Of these patients hitherto 12 female patients with histologally ascertained diagnosis underwent a clinico-angiological follow-up examination. Apart from this metabolic disturbances were thought for. In two thirds a disturbance of the carbohypdrate metabolism, in three fourths a disturbance of the lipometabolism was found; hyperlipoproteidaemia and diabetic change of the metabolism were simultaneously present in 7 out of 12 female patients. Uric acid level of the serum and rheumatic serology were, however, rarely pathological. A disturbance of the arterial blood supply of the legs could be ascertained in three fourths of the women who underwent a control examination. In these cases 15 to 19 extremities affected with necrobiosis had a disturbance of the blood supply. The microangiopathy histologically provable in foci of necrobiosis was to be seen only in one long-term diabetic also on the eye-ground. One third of the female patients suffered from hypertension. In all cases disturbances of the carbohydrate metabolism or of the lipometabolism and/or of the local blood supply could be proved. On the basis of these findings adequate examinations are recommendable in patients with necrobiosis lipoidical with regard to therapeutic consequences.
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The susceptibility of 16 noncompetitive cardiac pacemakers to radiation from a powerful radar system was investigated in the laboratory and in the vicinity of its prototype. From comparative in vitro tests in air, fat, water, and saline it was concluded that only tests in fat or air represent the worst case condition after implantation. In air all pacemakers showed signs of interference at pulse power densities between 0.025 mW/cm2 and 62.5 mW/CM2. Three of six implanted pacemakers were triggered or inhibited depending on their mode of operation when tested at a location 1.2 km away from the radar station by the radar beam occurring every 5.5 sec. Because interfering radiation can enter the pacemaker circuitry directly along the electrode, acting as an antenna, metal encapsulation of the pulse generator does not provide sufficient shielding against microwave radiation. However, pacemakers modified by metal encapsulation and a low-pass filter at the electrode remained undistrubed at pulse power densities of greater than 10 W/cm2 when tested under worst case condition in air.
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The present paper investigates the reasons for 26 resections carried out the diagnosis of the so-called "Middle-lobe-syndrome". In 25 of them the diagnosis could be confirmed by postoperative pathological examinations. The term "Middle-lobe-syndrome" means only a roentgenological findings. Its etiology must be investigated as soon as possible with all diagnostic procedures and too, by operation. This is expecially urgent in men older than 40 years.
This report deals with diaphragmatic abnormalities, their origin, anatomy, clinical features, therapy and prognosis. A rare deformity of the diaphragm: aplasia of the left side combined with hypoplasia of the left lung and a mediastinal abnormality is described and problems of diagnosis and surgical therapy are discussed.
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