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Biomedical subjects

S Wille

Publications and source records attributed to S Wille.

45 records · Page 3Linked to original sources

Peak flow in children aged 4-16 years. Normal values for Vitalograph peak flow monitor, Wright and Mini Wright peakflow meters.

Peak expiratory flow rate was measured in 318 Swedish children aged 4-16 years on Wright peak flow meter, Mini Wright peak flow meter and Vitalograph peak flow monitor. We found that height, age and sex had a significant effect on the regression equation. Weight and body surface area did not add any significant information. The curves for the Wright and Mini Wright peakflow meters are presented and may be used as normal references in the clinic. Mini Wright peakflow meter and Vitalograph peak flow monitor are cheap and handy but results on different instruments should not be directly compared.

Adolescent↗

Comparison of intranasal and oral desmopressin for nocturnal enuresis.

A single blind dose response study of the effects of treatment with tablets containing 50-400 micrograms of desmopressin was conducted in 15 children with primary nocturnal enuresis. A dose response effect was seen, with the 100, 200, and 400 micrograms doses resulting in significantly more dry nights than when a placebo was used. The response after 200 micrograms was significantly different from that after 100 micrograms (p less than 0.02) but not from that after 400 micrograms. A randomised, double blind, double dummy, cross over study was then carried out in 30 children to compare the effects of a 20 micrograms dose given through a nasal pipette, a 200 micrograms tablet, and a placebo. The numbers of dry nights were significantly greater during both periods of treatment with desmopressin when compared with that using placebo, but there were no differences between the methods of taking the drug. After oral and nasal treatment 41% and 52%, respectively, of the patients improved by more than 50%. Nine children (31%) remained completely dry after treatment.

Administration, Intranasal↗

Comparison of desmopressin and enuresis alarm for nocturnal enuresis.

Fifty children with primary nocturnal enuresis were randomised for a study comparing desmopressin (DDAVP) and enuresis alarm. Forty six completed the trial, 24 of whom were treated with 20 micrograms intranasal desmopressin nightly and 22 with enuresis alarm for three months. Failures were crossed over and relapses were continued on the same treatment for a further three months. The improvement rate was 70% in the group given desmopressin and 86% in the group treated with alarm; the difference was not significant. During the first week of treatment the group given desmopressin was significantly dryer, and at the end of the study 10 of these patients relapsed compared with one patient in the group given the alarm. No serious side effects were observed. This study confirms the role of conditioning treatment as preferable in long term treatment of nocturnal enuresis. When this fails or when a safe drug with rapid effect is needed, however, desmopressin is a useful alternative.

Behavior Therapy↗

A computer system for on-line decoding of ultrasonic Doppler signals from blood flow measurement.

This work describes a computer system which may be used for analyzing Doppler signals obtained when measuring the blood velocity. The computer operates on-line, and the velocity components in the blood vessel are obtainedin real-time. The mean velocity and the relative velocity distribution is calculated from the velocity spectrum. Measurements taken from a femoral artery are shown.

Blood Flow Velocity↗