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Impotence can be caused by many factors, from imbalances in hormones, to actual physical damage, to psychological or emotional problems. Paul F. Engelhardt, MD, of the Hospital Leinz in Vienna, Austria, and colleagues are in the midst of an ongoing study to see if men suffering from impotence that has more of a mental cause can be helped by acupuncture.

All 13 men in the study, average age 42, received acupuncture. But they were split into two groups receiving different treatments.

One group received the actual acupuncture for impotence. The other group received acupuncture but in areas that weren't related to relieving impotence. The researchers did this to see if there was a strong "placebo effect," in which the patients have relief from just thinking they're receiving treatment.

The first group, which contained seven men, received two acupuncture sessions a week for 10 weeks using "acupuncture with several points for erectile dysfunction that are traditional Chinese acupoints," Engelhardt says.

Six men in the second group underwent four weeks of acupuncture. "The so-called placebo group," Engelhardt tells WebMD, "was also treated with acupoints, but these points did not correlate with the diagnose of [erectile dysfunction]."

In order to make sure the men's impotence was not linked to a physical cause, they were put to a test. For three nights, they were given a drug to cause an erection. Based upon something called "RigiScan testing," all the men achieved a "full erection," according to Engelhardt.

At one point, the groups were switched. "Our results are that none of the patients of the placebo group reported good results of the placebo treatment, so all of them were crossed over into design of group one," Engelhardt tells WebMD.

The final results? Eight of the participants claimed they were "cured." "About two-thirds of our patients reported good results of our acupuncture therapy; they defined themselves as cured; they didn't demand any additional therapy," Engelhardt says.

"About one-third of the patients told us that they had some improvements of their quality of life, that their erections were a little bit better than at the start of the treatment," Engelhardt says. "But it was not sufficient enough, so they wanted some additional therapy, and we treated them with Viagra."

More detail on this study can be found at http://www.webmd.com/news/20000505/impotence-gets-needled-in-acupuncture-study