The influence of estradiolbenzoate, hydroprogesteroncapronate and pregnancy on the mechanical reaction of the directly and indirectly stimulated nerve-diaphragm preparation has been the subject of this investigation. Rats were ovario-ectomized and the hormone preparations were injected subcutaneously. After a lapse of 9 days the test preparation was made. 1. Estrogen and the estrogen-gestagen combination have a similar effect on the isometric contraction of the transversely striated muscle. The times of rising and relaxation were prolonged after indirect and direct stimulation. The contraction amplitude had not altered compared to the control group. 2. Gestagens and the hormone situation of pregnancy entail, independent of the kind of stimulation, a decrease of the tension progress and the speed of the tension increase. The gestagen-treated animals underwent a shortened contraction process. These findings enable us to comment on the different efficiencies of women during various cycle phases and during pregnancy.

Men should abstain from physical exercise, especially from cycling for several days and at least for 24 h before PSA measurements are carried out. This applies to patients with elevated PSA levels (>4 ng/ml) when a PSA follow-up is being carried out.

Emergence agitation is still seen as a relevant clinical problem by experienced pediatric anesthesiologists. Propofol is first choice when it comes to pharmacological prevention and treatment of emergence agitation. Postoperative parental presence was considered beneficial by the majority of anesthesiologists.

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