Electroencephalographic and Plasma Electrolyte Changes After Cardiac Surgery in Children

Assessment of sleep in hospital patients: a review of methods

“…Certain drugs often used for premedication, such as atropine sulphate and hyoscyamine sulphate produce an EEG characteristic of sleep even during wakefulness (Bradley & Elkes 1957). Harden et al (1968) found that uncomplicated cardiac surgery may be followed by a waking EEG including increased amounts of slow activity similar to SWS. This appeared to be related to hyponatraemia.…”