New Kind Contraceptive Pills Cause Blood Clotting

a study published in the British Medical Journal confirms that certain types of contraceptive pills at high risk of causing serious blood clots called venous thromboembolism (VTE).

When a clot forms in blood vessels, a portion of the clot will flow to other parts of the body. If the clot goes to the lungs or brain, can lead to death.

Dr. Øjvind Lidegaard from the University of Copenhagen, who led the research said that the consumption of contraceptive pills that contain one new type of progestogen hormone such as drospirenone, desogestrel, or gestodene, may increase the risk of VTE than doubled pills containing progestogen called levonorgestrel old version.
Drospirenone is found in the new contraceptive pill branded as Beyaz, Gianvi, Loryna, Ocella, Safyral, Syeda, Yasmin, Yaz, and Zarah.

Previously, the FDA has reviewed the medical history of more than 800,000 women who use birth control pills is different between 2001 and 2007. On average, women who take birth control pills have a new type of 75 percent greater risk of experiencing blood clots than women taking oral contraceptives for long.

Lidegaard and colleagues then conducted a study on a large scale to assess the risk of VTE for women using oral contraceptives with different progestogen.

The researchers reviewed the data pattern of hormonal contraceptives and VTE Danish women aged 15 and 49 years who are not pregnant from January 2001 through December 2009. The participants had no medical history of blood clots or cancer before the study began.

Compared with nonusers of hormonal contraceptives, pills containing levonorgestrel increased three-fold risk of VTE. While drospirenone, desogestrel or gestodene increase the VTE risk sixfold.

The research team assessed more than eight million year-old woman who experienced first incident VTE 4246. That is, there are about 2,000 women have switched to using contraceptives containing desogestrel, gestodene or levonorgestrel-containing drospirenone with to prevent one VTE events in one year.

"It's hard not to conclude that the combined oral contraceptives containing desogestrel, gestodene or drospirenone provides risk of venous thromboembolism is higher than with levonorgestrel. Many doctors would prefer to minimize risk by prescribing combination oral contraceptive containing levonorgestrel whenever possible," said Dr.. Philip Hannaford from the University of Aberdeen as reported esciencenews.com, Friday (28/10/2011).

Hannaford also stressed that the risks of using oral contraceptives should not be exaggerated. Oral contraceptives are very safe and can provide long term benefits associated with cancer and death.