August 2007


Harvard Med School says just letting nerves heal can take too long

The traditional advice given to men after surgery to remove the prostate - to wait for erectile function to return on its own - may not be adequate. Simply put, erections seem to work on a use-it-or-lose-it basis. To prevent the secondary damage that may occur if the penis goes too long without erections, researchers now think it’s better to restore erectile function soon after prostate removal.

The prostate is the gland below a man’s bladder that produces fluid for semen. Prostate cancer, which sometimes requires removal of the prostate, is the third most common cause of death from cancer in men of all ages, although it primarily occurs in older men.

Erectile dysfunction after surgery to remove the prostate (radical prostatectomy) has traditionally been attributed to nerve damage that theoretically should heal over time. But it can take as long as two years for the nerves to recover enough for a man to have an erection without the aid of drugs or devices. By that time, other damage may have occurred, according to an article in the latest issue of Perspectives on Prostate Disease.

The Harvard Medical School bulletin notes that when the penis is flaccid for long periods of time, it is deprived of a lot of oxygen-rich blood. Recent research suggests that this low oxygen level causes some muscle cells in the penis’s erectile tissue to lose their flexibility. The tissue gradually becomes more like scar tissue, interfering with the penis’s ability to expand when it’s filled with blood.

Treatment options to restore erectile function include using a vacuum pump device or taking erectile dysfunction drugs by mouth or by injection into the penis.

According to Dr. Marc Garnick, editor in chief of Perspectives on Prostate Disease and a Harvard oncologist, “Although the evidence supporting this ‘penile rehabilitation’ isn’t perfect, you may want to ask your doctor about the options. Such early intervention may help increase the odds that you will regain erectile function.”

Source: Seniorjournal

Men who smoke cigarettes run an increased risk of experiencing erectile dysfunction, and the more cigarettes smoked, the greater the risk, according to a study by Tulane University researchers published in the American Journal of Epidemiology.

A team of researchers led by Jiang He, Professor of Epidemiology at the Tulane University School of Public Health and Tropical Medicine, examined the association between cigarette smoking and erectile dysfunction in a 2000-2001 study in China involving 7,684 men. The researchers used questionnaires to assess the status of cigarette smoking and erectile dysfunction. Those surveyed were men between the ages of 35-74 who did not have vascular disease.

The team found that there was a significant statistical link between the number of cigarettes that men smoked and the likelihood they would experience erectile dysfunction. The association between smoking and erectile dysfunction was even stronger in participants with diabetes. An estimated 22.7 percent of erectile dysfunction cases among Chinese men might be attributable to cigarette smoking, says the study.

Although erectile dysfunction is not a life-threatening condition, it compromises well-being and quality of life. The Tulane study results suggest that smoking prevention should be an important approach for reducing the risk of erectile dysfunction.

Source: Sciencedaily