The researchers found a significant increase in cholecystectomy – the surgical removal of the gallbladder as a result of complications related to gallstones in the women who used synthetic HRTs. The risk was was so high that researchers estimated that over five years, 1 in every 150 women who use HRT would require a surgery.
Over five years, about one cholecystectomy in excess would be expected in every 150 women using oral estrogen therapy without a progestagen, compared with women not exposed to menopausal hormone therapy.
Dr. Antoine Racine of South Paris University, study author
The study also showed that using oral, estrogen only HRT, as is more common in the US and UK than in France where the study was conducted, poses a greater risk for gallbladder disease than the either oral HRT with a progestogen or the transdermal HRT patch. Indeed, the transdermal and gel HRT formulas showed little increase in expected numbers of cholecystectomy. It should be noted that the increased gallbladder disease is in addition to the already well-documented increases in heart disease, stroke, breast cancer and blood clots. It may be time to reconsider synthetic HRT therapies and look toward more natural treatment options.