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Headache. 2002 Apr;42(4):242-8.

Serum ionized magnesium levels and serum ionized calcium/ionized magnesium ratios in women with menstrual migraine.

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1
New York Headache Center, SUNY Downstate Medical Center, Brooklyn 11203, USA.

Abstract

OBJECTIVE:

It has been suggested that magnesium deficiency may play an important role in menstrual migraine and that the serum ionized calcium (ICa2+)/ionized magnesium (IMg2+) ratio is important in migraine headache. Studies were designed to test these hypotheses.

DESIGN:

We prospectively evaluated 270 women seen at a headache clinic and in 61 women with menstrual migraine measured IMg2+, total magnesium, and ICa2+ levels so as to calculate the ICa2+/IMg2+ ratio.

RESULTS:

The incidences of IMg2+ deficiency were 45% during menstrual attacks, 15% during nonmenstrual attacks, 14% during menstruation without a migraine, and 15% between menstruations and between migraine attacks. The serum ICa2+ levels were within our reference range, but the ICa2+/IMg2+ ratio was elevated (P<.01) in menstrual migraine.

CONCLUSIONS:

The high incidence of IMg2+ deficiency and the elevated ICa2+/IMg2+ ratio during menstrual migraine confirm previous suggestions of a possible role for magnesium deficiency in the development of menstrual migraine.

PMID:
12010379
[Indexed for MEDLINE]

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