Breathe. What you need to know about asthma and HRT

Posted by Liz on Sep 30, 2011 in asthma, HRT, menopause | 0 comments

 

 

If you suffer from asthma, you will want to take note: researchers presenting at this week’s European Respiratory Society AnnualConference have shown that female asthmatics have an increased risk of landing in the hospital if they take hormone replacement therapy (HRT). Yet another nail in the HRT coffin, once again demonstrating that the health risks of taking hormone replacement may outweigh the benefits.

Notably, studies have shown that asthma risk increases in women after puberty. Moreover, hormones, most specifically fluctuating estrogen levels, can impact airways as much as allergies and hay fever (fluctuating estrogen levels can produce an inflammatory response and exacerbate breathing difficulties). On average, asthma symptoms develop in about 21% of menopausal women and more than twice as many using hormone therapy.

In this study of over 23,000 Danish women with documented asthma, researchers looked specifically at hospitalizations for severe reactions. They also collected information on smoking, exposure to smoke, body mass index, level of physical activity, history of hysterectomy and use of HRT.  The findings? Using HRT increased the risk for hospitalization for severe asthma reactions by as much as 40% compared to not using hormone therapy. What’s more, the longer the women used HRT, the higher their risk of ending up in the hospital; for example, if they used it for less than 3 years, they have a 29% increased risk and if they used it for more than 10, a 51% increased risk. Even more troubling was the fact that women didn’t smoke appeared to have the highest risk for being hospitalized in association with their HRT use.

Although this isn’t a randomized trial, and more information is needed, the researchers still recommend that practitioners be made aware of these findings. They say that the relationship between asthma and female sex hormones is hardly new, but that their findings confirm the relationship and further our understanding of it by showing the extent of severe asthma reactions that occur when women take hormones. “If a patient develops asthma or has a severe worsening of symptoms after taking HRT, they may need to stop hormone therapy altogether,” they add.