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Digitale Medien

Circulatory responses during electroconvulsive therapy (1992)

O'FLAHERTY, D. ; HUSAIN, M. M. ; MOORE, M. ; [weitere]

Oxford, UK : Blackwell Publishing Ltd

Anaesthesia 47 (1992), S. 0

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ISSN: 1365-2044

Quelle: Blackwell Publishing Journal Backfiles 1879-2005

Thema: Medizin

Notizen: Electroconvulsive therapy is usually accompanied by activation of the autonomic nervous system, which may be harmful in patients with cerebrovascular or ischaemic heart disease. We have compared this haemodynamic response in a series of 82 electroconvulsive treatments randomly assigned to receive either nitroglycerin 3 μg.kg−1, esmolol 2 mg.kg−1 or placebo. These drugs were given shortly after the suxamethonium and 2 min before the electroconvulsive therapy in all cases. Heart rate was significantly lower with esmolol 1 min after therapy as was blood pressure (systolic and diastolic). The pulse rate was higher following nitroglycerin than placebo, which in turn was higher than esmolol. The three groups did not differ with regard to seizure duration. The results demonstrate that esmolol is more effective than nitroglycerin in controlling the haemodynamic response to electroconvulsive therapy. With recent emphasis on stabilisation of heart rate in preference to blood pressure in at-risk cardiac patients, our study suggests that, in the doses selected, esmolol is preferred to nitroglycerin to control the heart rate response to electroconvulsive therapy.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1111/j.1365-2044.1992.tb02324.x

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Digitale Medien

Use of Nitrous Oxide to discriminate between Various Forms of Hydrogen Atoms existing in Aqueous Solutions of Potassium Iodide irradiated with Ultra-violet Light (1960)

DAINTON, F. S. ; SILLS, S. A.

[s.l.] : Nature Publishing Group

Nature 186 (1960), S. 879-879

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ISSN: 1476-4687

Quelle: Nature Archives 1869 - 2009

Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik

Notizen: [Auszug] We have recently measured the quantum yields of formation of hydrogen, nitrogen and iodine for this system over a wide range of pTcL, and the results, which are shown in Fig. 1, entirely confirm these predictions. It will be noticed that 9(N2) remains constant at 0-16 over the pH. range 3-11 and ...