вторник, 30 ноября 2010 г.

Erectile Dysfunction Predicts Coronary Heart Disease in Type 2 Diabetes

The current issue of the Journal of the American College of Cardiology has two interesting studies in the relationship of Erectile Dysfunction and Coronary Heart Disease in men with Type 2 Diabetes.
Below is the abstract of the study.
We examined the predictive power of erectile dysfunction (ED) on coronary heart disease (CHD) events in Chinese men with type 2 diabetes.
Subjects with diabetes are prone to develop cardiovascular complications. Erectile dysfunction is strongly associated with CHD in cross-sectional studies, but prospective data are lacking.
A consecutive cohort of men with no clinical evidence of cardiovascular disease underwent comprehensive assessments for diabetic complications. Erectile dysfunction was defined according to the definition of the National Institutes of Health Consensus Conference 1992. Coronary heart disease events were censored with centralized territory-wide hospital databases in 2005.
Of 2,306 subjects (age: 54.2 12.7 years; follow-up: 4.0 [range 1.7 to 7.1] years), 26.7% had ED at baseline. The incidence of CHD events was higher in men with ED than those without (19.7/1,000 person-years, 95% confidence interval [CI] 14.3 to 25.2 person-years vs. 9.5/1,000 person-years, 95% CI 7.4 to 11.7 person-years). Men who developed CHD events were older; had a higher frequency of ED and microvascular complications; had longer duration of diabetes; and had higher blood pressure, total cholesterol, low-density lipoprotein cholesterol, and urinary albumin/creatinine ratio but lower high-density lipoprotein cholesterol and estimated glomerular filtration rate than those without CHD events. Erectile dysfunction remained an independent predictor for CHD events (hazard ratio 1.58, 95% CI 1.08 to 2.30, p = 0.018) after adjustment for other covariates along with age, duration of disease, and use of antihypertensive agents and albuminuria.
In type 2 diabetic men without clinically overt cardiovascular disease, the presence of erectile dysfunction predicts a new onset of Coronary Heart Disease events. Symptoms of erectile dysfunction should be independently sought to identify high-risk subjects for comprehensive cardiovascular assessments.

четверг, 25 ноября 2010 г.

FDA Changes Labels for Cialis, Levitra, Viagra Due To Hearing Loss Side Effects

Erectile Dysfucntion Drugs and Hearing Loss

Potential side effects of sudden hearing loss with erectile dysfunction drugs such as Viagra, Levitra and Cialis to be displayed more prominently.
The U.S. Food and Drug Administration has approved labeling changes for erectile dysfunction (ED) drugs in the class that includes Cialis, Levitra, and Viagra, to display more prominently the potential risk of sudden hearing loss, and to guide consumers on what to do if they experience sudden problems with their hearing.
In addition, the FDA plans to require the same changes in labeling for the drug Revatio, also a member of this drug class known as phosphodiesterase type 5 (PDE5) inhibitors. Revatio is used to treat pulmonary arterial hypertension (PAH). PAH is a serious medical condition in which continuous high blood pressure in arteries of the lungs weakens the heart muscle and often leads to right heart failure and death.
The FDA asked manufacturers of Cialis, Levitra, and Viagra to revise product labeling after a very small number of patients taking the PDE5 inhibitors reported sudden hearing loss, sometimes accompanied by ringing in the ears and dizziness.
"Because some level of hearing loss is usually associated with the aging process, patients on these drugs may not think to talk to their doctor about it," said Janet Woodcock, M.D., FDA's deputy commissioner for scientific and medical programs, chief medical officer, and acting director of its Center for Drug Evaluation and Research.
Patients taking Cialis, Levitra, or Viagra who experience sudden hearing loss should immediately stop taking the drug and seek prompt medical attention. Those using Revatio should continue taking their medication but should contact their health care provider for further evaluation. Because Revatio is used to treat a potentially life-threatening condition, the FDA does not recommend patients abruptly stop taking this medication but should consult their physician if they experience sudden problems with their hearing.
A case report in the April 2007 issue of the Journal of Laryngology & Otology involving sudden hearing loss in a man taking Viagra prompted the FDA to search the FDA's Adverse Events Reporting System for instances of hearing loss and PDE5 inhibitors. The FDA found a total of 29 postmarketing reports of sudden hearing loss, both with and without accompanying ringing in the ears, vertigo, or dizziness. In most of the cases, the hearing loss involved one ear. The hearing loss was either a partial or complete loss of usual hearing. In approximately one third of cases, the event was temporary. In the remainder, the hearing loss was ongoing at the time of the report or the final outcome was not described.
Although no causal relationship has been demonstrated, the strong relationship between the use of Cialis, Levitra, Viagra drugs and sudden hearing loss in these cases warrants revisions to the product labeling for this drug class.
Product Web sites, marketing and educational materials, and advertisements for PDE5 inhibitors will reflect the revised product labeling.