Clinical Evaluation of Fluothane With Special Reference to a Controlled Percentage Vaporizer

Cardiac Arrest Following Administration of a High Concentration of Halothane Vapour

“…Raventos (1956) found that large doses of adrenaline or noradrenaline could be injected subcutaneously or intramuscularly in dogs without producing ventricular disturbances. In man, whose myocardium is probably more sensitive to the effects of adrenaline than is that of the dog, Junkin et al (1957), MacKay (1957) and Marrett (1957) all reported the injection of adrenaline-containing solutions without clinically noticeable cardiac effect. However, Brindle et al (1957) suggested that the subcutaneous injection of adrenaline during uncomplicated halothane anaesthesia in man may be hazardous.…”

The Marrett Apparatus: Is Hospital Anaesthetic Equipment Compatible with Field Use?

“…Marrett recommended that the apparatus should be used with halothane according to an algorithm and patient response but, of course, true concentrations would not have been known xiv . A Fluotec mark II (Cyprane Ltd., Keighley) 27,28 was bolted on the front by some anaesthetists xv but the vaporizer in circle function would have been lost. By then, the army had long ceased to use the apparatus.…”

The Clinical Use of Halothane Anaesthesia During Cardiopulmonary Bypass for Open-Heart Surgery

“…However, oxygen flow during priming was of the order of 1 l./min and as the Fluotec vaporizer used in this series was the Mark I model, it is likely that the halothane concentration delivered with the oxygen was less than 1 per cent. During perfusion, oxygen flow through the Fluotec was always in excess of 4 l./min and so the concentration of halothane delivered to the oxygenator was assumed to correspond closely to the vaporizer setting (Mackay, 1957;Hill, 1958). In eighteen cases the Fluotec setting was maintained at 1 per cent throughout perfusion and in the remaining ten cases the setting was deliberately altered from 1 per cent to 0 per cent.…”