Drug interaction?
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Biomedical subjects
Publications and source records attributed to S M Mostafa.
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A new anaesthetic gas scavenging system is described. The resistance of the system appears to be low. When input gas flow rate in the system was zero or 150 litre min-1, misuse of the system produced pressure changes at its collecting points of 26 Pa subatmospheric and 630 Pa above atmospheric pressure, respectively. Suggestions to develop the system and increase its safety are presented.
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The effect of chemical disinfection of the Heidbrink expiratory valve in buffered glutaraldehyde (Cidex solution) was investigated. Cidex caused stickiness and increased the opening pressure and resistance of the valve to different gas flow rates. An electrolytic type of corrosion may also have occurred. However, autoclaving of the Heidbrink valve did not appear to cause corrosion or significant alteration of its opening pressure or resistance.
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The incidence of variation in the subglottic size was investigated in 3304 infants and children. A mild degree of congenital subglottic stenosis was found in 0.91% and a moderate degree of stenosis in 0.06% of the patients. A mild degree of congenital subglottic enlargement was noted in 0.7% and moderate enlargement in 0.06% of the patients.