Abstract

Ophthalmodynamometric determinations were used for measuring the blood pressure in the central retinal artery during cyclopropane anaesthesia in children. The results were correlated with the systemic blood pressure and later analysed and compared with the results obtained under similar conditions when the maintenance agent was halothane. When evaluated in terms of the difference between systemic and retinal arterial pressures, both systolic and diastolic, the two agents were shown to have similar average effects, i.e. in lowering the retinal arterial blood pressure. It is the progression of the blood pressure change over the various E.E.G. levels which distinguishes the two agents.

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