Cardiac output response to altered acid-base status during diethyl ether anaesthesia

Cardiac output changes with altered acid-base status during methoxyflurane anaesthesia.

THE PIYBPOSE OF this study was to determine the effects upon cardiac out-put of alterations in acid-base states during methoxyflurane anaesthesia in dogs. Studies of varied acid-base states on cardiac functions have been described in v i tro 1 and in v ivo. ~.3 A clear understanding of cause and effect relationships has been prevented by disparity of results, lack of correlation with surface ar...

Neurophysiological Studies on Nitrous Oxide and Diethyl Ether Anaesthesia.

The spontaneous electrical activities and alterations of the activation threshold of the neo-, palaeoand archicortical systems were investigated during nitrous oxide and ether anaesthesia. In the neocortical system the threshold for hypothalamic stimulation, induced spindle bursts, recruiting response and thalamic arousal reaction were also examined. The results obtained were as follows: (a) Ni...

Reduction of hypoxic pulmonary vasoconstriction during diethyl ether anaesthesia in the dog.

The activity of the pulmonary vasoconstrictor response to alveolar hypoxia was assessed by measuring the redistribution of pulmonary blood flow in response to the ventilation of one lung with nitrogen. The vasoconstrictor response was depressed during the administration of 5% diethyl ether but returned when the ether was withdrawn. It is suggested that depression of the hypoxic vasoconstrictor ...

Acid-base relationships and the cardiac response to aerosol inhalation.

Convulsion during ether anaesthesia; a case report.

A five-year-old girl was admitted to Hammer-smith Hospital with a diagnosis of a perforated appendix. Her mother stated that she had complained of pain in the R.I.F. for 12 hours prior to admission, that during that time she had vomited periodically and was "breathing very fast." The pain had become severe in the evening and she was brought up to the Casualty Department. Physical examination re...