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Biomedical subjects

M Hagedorn

Publications and source records attributed to M Hagedorn.

117 records · Page 7Linked to original sources
PubMed1974

Interstitial pulmonary edema following bromocarbamide intoxication.

Bromocarbamides are sleep-inducing drugs which can lead, in man, to intoxication and death due to respiratory failure. To prove whether hemodynamic factors or the changed endothelial permeability induce pulmonary edema, animal experiments were performed. The fine structural changes in pulmonary edema in rabbits were observed at 60, 90 and 120 minutes after oral administration. The major findings were a) large blebs between capillary endothelium and alveolar epithelium and b) interstitial edema of the vessel wall. The bleb contents were much less electron dense than the blood contents in the capillary. Colloidal carbon did not enter the bleb or the edematous interstitial tissue. Exogenous peroxidase uptake in pinocytotie vesicles increased in pathologic cases. The hemodynamic measurements in animal receiving artificial respiration which maintained the blood pO(2) at a steady state showed similar blebs in the pulmonary vessels, indicating that anoxia is not the major cause of the vascular lesion. Moreover, pulmonary arterial pressure and pulmonary vascular resistance could be held in the normal range in artificially respirated animals under bromocarbamide intoxication. Thus, hemodynamic factors are not likely to play a pathogenetic role in bringing about pulmonary edema. The chief, early factor is the increased endothelial permeability due to increased cytoplasmic transport. From this a practical suggestion for treating patients with bromocarbamide intoxication is derived: the usual fluid replacement in shock patients should be handled with great care to avoid fluid overload of the lung.

Adrenal Glands↗
PubMedDate not supplied

Comparative efficacy and safety of bifonazole 1% cream and the corresponding base preparation in the treatment of seborrhoeic dermatitis.

Seborrhoeic dermatitis is a common entity that conventionally is difficult to treat. Recently, topical ketoconazole has been proven successful. To determine if other azoles, and in particular the more modern ones, are also helpful in this condition, a double-blind multicentre randomized controlled trial was performed in patients suffering from seborrhoeic dermatitis involving individuals 16 years and older without human immunodeficiency virus (HIV) infection. One hundred patients were enrolled and treated according to a random plan with either bifonazole 1% cream or the corresponding vehicle once daily for 4 weeks. All patients were evaluated at the beginning of the study, as well as after 2 and 4 weeks, i.e. the treatment period proper, and after 6 weeks of follow-up. Clinical evaluation was based on scores of 0-3 for the following parameters: erythema, papules, infiltration, scaling, itch. In addition, mycological evaluation was performed using adequate contact plates for quantitative determination of Malassezia furfur. In the end, 92 patients were at least partially evaluable. In general, the verum preparation tended to be more efficacious, e.g. the score for erythema amounted to 0.75 after 4 weeks as compared with 0.88 in the control group, the baseline values being 2.18 and 2.04 respectively. With itch, the corresponding figures were 0.17 and 0.33 as compared with 1.42 and 1.38 before treatment. While in statistical terms there was significant difference in these parameters, such a difference was demonstrated by clinical judgement at follow-up.(ABSTRACT TRUNCATED AT 250 WORDS)

Administration, Topical↗