SOURCE: Newswise
DATE: 8/2/2010
EXCERPT: "In women undergoing surgery, the heart rate and blood pressure response to ventilation tube placement varies at different times of the menstrual cycle ... In the first minute after intubation, rate pressure product was significantly higher for women in the luteal phase (higher hormone levels) than in the follicular phase (lower hormone levels). Overall, the hemodynamic response to tracheal intubation was about 30 percent greater for women in the luteal phase.
A wide range of hormonal, physical, and psychological fluctuations occur during the menstrual cycle. Previous studies have shown significant differences in the need for anesthetics and analgesics (pain-relieving drugs) for women in different stages of the cycle.
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The new results show that the menstrual cycle also has a significant impact on the body's response to the "noxious stimulation" of tracheal tube placement.
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The hormones that govern the menstrual cycle, estradiol and progesterone, have significant analgesic properties, ... " more
RELATED PUBMED LINK:
Hanci V, Yurtlu S, Hakimoglu S, Yilmaz M, Ayoglu H, Basaran M, Erdogan G, Okyay RD, Turan IO. Brief report: the effects of the menstrual cycle on the hemodynamic response to laryngoscopy and tracheal intubation. Anesth Analg. 2010 Aug;111(2):362-5.
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