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Para‐anaesthetic headache in female patients

In an editorial in the British Journal of Anaesthesia in 19601 a plea was made that more attention should be paid to the minor sequelae of anaesthesia. These 'minor' discomforts, such as sore throat, backache, suxamethonium muscle pains and headache, assume increasing importance after minor surgery, when the patient should otherwise be free from pain. The reported incidence of headache following general anaesthesia varies between 2.7 per cent2 and 35 per cent3. Recently, Hannington-Kiff4 has reported that patients who suffer from migraine are much more likely to get a headache before and after operation than are non-sufferers. Tyrrell & Feldmans, investigating the frequency of headache in patients undergoing comparable operations with or without halothane, concluded that halothane anaesthesia could contribute to its occurrence. They suggested that this was due to the increased cerebral blood flow which occurs during anaesthesia with this agent. Interest in the present study arose because of the large number of patients who complained of headache during a separate investigation of drugs used in premedication. The study was designed to investigate the incidence of headache before and after minor surgery and to assess its relationship to various premedicant drugs and was carried out concurrently with other premedication studies.