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Biomedical subjects

P Herrmann

Publications and source records attributed to P Herrmann.

30 records · Page 2Linked to original sources
PubMed1980

Comparison of late results in patients with corrected intestinal malrotation with and without fixation of the mesentery.

Between 1940 and 1975, 86 patients with malrotation of the intestine leading to intestinal obstruction or volvulus were treated at the University Children's Hospital of Zürich. All case histories and radiograms have been examined and a questionnaire has been sent to all surviving patients. Forty-four of them were reexamined personally 3 to 37 yr later. The study was undertaken to find out whether at the time of correction of intestinal malrotation simultaneous additional fixation of the mesentery had any value. Six of the 86 patients were successfully treated nonoperatively and 3 died before surgery of other severe malformations. Of the remaining 77 children who underwent surgery, additional fixation was done in 28 of the earlier cases, but not done in 49 of the later cases. The percentage of early survivors was 85.7% in the group with intestinal fixation and 83.7% in the group without fixation. The number of reoperations was slightly lower in the group without fixation (10.4%) when compared to the group with fixation (16.6%). 25% of the children with intestinal fixation and 21% of the children without fixation had occasionally slight abdominal symptoms at a later time. These results demonstrate that intestinal fixation neither increased the number of early survivors nor reduced the number of reoperations, nor the percentage of children with abdominal complaints. It was therefore concluded that additional fixation after correction of intestinal malrotations was of no benefit and unnecessary.

Adolescent↗
PubMed1978

[A rare case of hyperodontia].

A rare case of hyperdontia is described to demonstrate that under favourable conditions supernumerary, normally formed teeth must not be extracted, but can be fully included in the planning of orthodontic treatment.

Adolescent↗
PubMedDate not supplied

Cerebrospinal and plasma amino acid concentrations after administration of i.v. glycyl-glutamine and glycyl-tyrosine containing amino acid solutions in humans.

BACKGROUND: Glycyl-glutamine and glycyl-tyrosine may supply adequate glutamine and tyrosine in amino acid solutions for parenteral nutrition. However, plasma peptides may be transported into the cerebrospinal fluid, exerting effects on the neuronal tissue. Cerebrospinal fluid (CSF) and plasma amino acid concentrations after administration of a glycyl-glutamine/glycyltyrosine supplemented amino acid solution were therefore evaluated in a randomized controlled comparison with a conventional amino acid infusion. METHODS: Dipeptide/amino acid solutions (0.60 mL/h/kg; 82.2 mg total dipeptides/amino acids/h/kg) or conventional amino acid solutions (0.73 mL/h/kg; 83.2 mg total amino acids/h/kg) were infused in 15 patients per group scheduled to undergo spinal anesthesia for urologic surgery over a 12-hour period preoperatively. Plasma amino acids were measured before the infusion was started. CSF and venous concentrations were analyzed simultaneously before the infusion was stopped. CSF samples were drawn through the spinal needle for anesthesia. RESULTS: The dipeptide-containing solution did not increase either dipeptide to detectable levels in the CSF (detection limit < 5.0 nmol/mL). Venous glycyl-glutamine increased from below detection limits up to 308 +/- 111 nmol/mL (p < .05), whereas glycyl-tyrosine could not be found. In the dipeptide group, venous glutamine and tyrosine were higher (p < .05) but only tyrosine appeared in small amounts (p < .05) in the cerebrospinal fluid. CONCLUSIONS: This study provides no evidence to support a CSF entry of IV glycyl-tyrosine and glycyl-glutamine under conditions of a normal blood-brain barrier in the adult (detection limit 5 nmol/mL). The data suggest that amino acid solutions containing these dipeptides may be used in parenteral solutions for nutrition support.

Aged↗