Cephalalgia : an international journal of headache
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A questionnaire was submitted to 430 women 3 days after delivery, asking mainly about features of headache before and during pregnancy, and their possible modification or recurrence; moreover, delivery modalities and the condition of the newborn were evaluated. One-hundred-and-twenty-six (29.3%) were found to be primary headache sufferers (IHS criteria, 1988), 81 of whom had migraine without aura (MO), 12 migraine with aura (MA), and 33 tension-type headache (TH). In all three groups, about 80% showed complete remission or a higher than 50% decrease in the number of attacks. ⋯ In a subgroup of pluripara, headache maintained the improvement presented in the first pregnancy also during the following gravidic periods in about 50% of cases, whereas in the remaining 50% a worsening in parallel with successive pregnancies was found. Primary headaches "per se" do not seem to increase the pregnancy or delivery risks, nor the vitality of the newborn. During pregnancy, drug use was very much reduced and was restricted to a limited number of compounds.
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Pain pressure thresholds (PPT) were measured at 13 cephalic points bilaterally in 30 headache patients (10 with tension-type headache, 10 with migraine and 10 with cervicogenic headache) and 10 control subjects on three different days. During the sessions, the subjects reported their pain intensity on the right and left sides of the head on a visual analogue scale (VAS). The variability between days was estimated as a coefficient of repeatability (CR = 2 standard deviations of intraindividual differences). ⋯ These results have implications for the planning of future algometer studies. The sample size that is required in studies of headache patients is greater than that in studies of healthy subjects, especially when patients suffer from pain during the PPT session. Particular attention should be paid to circumstances (e.g. preceding medical investigations) around the algometry procedure in order to reduce variability.