Search PubMed⌕ Search

Biomedical subjects

H Meyer

Publications and source records attributed to H Meyer.

At least 415 records · Page 23Linked to original sources

The significance of colloid osmotic pressure measurement after crystalloid and colloid infusions.

Colloid osmotic pressure (COP) was followed postoperatively in 55 randomized patients. After minor operations and short-term infusion therapy only small changes of the COP could be observed and it was concluded that after such operations COP measurement is unnecessary. After major surgical interventions, however, COP measurement gave valuable hints. It was shown that even in the case of moderate blood loss replaced by crystalloids an abnormally low COP did not occur. The same applied also to preoperative hemodilution. It was unnecessary to substitute the withdrawn blood with a colloid solution. In addition, COP measurement helped to avoid expensive albumin administrations, and indicated colloid overload in cases of pulmonary edema.

Adult↗

On the cultivation of Trypanosoma cruzi in tissue cultures of the spinal and sympathetic ganglion from the chick embryo.

Trypanosoma cruzi was cultured in spinal and sympathetic ganglion cells of chick embryos. The "Y" and the "CL" strains were used for comparison, showing no differences in their tropism for the different cell types of the ganglion cultures. Nerve cells as well as satellite and Schwann cells served as host for the parasite's intracellular cycle. No toxic effect on the nerve cells was observed in heavily infected cultures. The destruction of the nerve cells is due to the multiplication of the parasites in the cell's cytoplasm. Its structure in the non parasitized nerve cells, even in direct contact with parasites, looks normal under the optical microscope and also shows no alteration in its ultrastructure.

Animals↗

External ophthalmomyiasis caused by Oestrus ovis.

A 16-year-old White girl presented with a foreign-body sensation in her right eye. Seven Oestrus ovis maggots were removed with the aid of a cotton wool-tipped probe. The subsequent history has been quite uneventful. This appears to be the fifth reported case of ophthalmomyiasis externa in southern Africa.

Adolescent↗