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Electrical Implant Might Help With Bladder Control

Date:
April 16, 2009
Source:
Center for Advancing Health
Summary:
For people with urinary incontinence who have run out of options, an electrical device might help, according to a new review.

For people with urinary incontinence who have run out of options, an electrical device might help, according to a new Cochrane Library review.

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The battery-operated implant works with two small electrodes placed beneath the skin, near the sacrum or “tailbone,” to give a continuous shock to the nerves that control the bladder, causing the person to feel an uninterrupted tapping sensation in the pelvic area.

“There are few treatments that can claim to cure people with overactive bladders or urinary retention,” said lead author G. Peter Herbison, from the Dunedin School of Medicine in New Zealand. “It is possible that implanted pulse generators will do just that.”

“Depending on how it is defined, around 17 million people in the U.S. may have bladder control problems,” said Kenneth Peters, M.D., chairman of urology at Beaumont Hospital in Royal Oak, Mich.

Some people respond to medications, behavioral therapy or other noninvasive means, while surgery is useful mostly for those with stress incontinence.

Herbison and his co-author wanted to determine the effects that this type of device had in people with urine storage and voiding problems. They reviewed eight published studies involving 500 patients who had not responded to other less invasive treatments.

Most of the studies did not indicate whether participants were men or women. The reviewers deemed study quality either poor or difficult to assess; therefore, they did not combine the data for a pooled analysis. The reviewers also said that most of the longer-term studies have a poor rate of follow-up, which means there are questions about their reliability.

Overall, the results showed benefits primarily for patients with symptoms of overactive bladder and with no known obstruction who had failed other methods of treatment.

The review appears in the current issue of The Cochrane Library, a publication of The Cochrane Collaboration, an international organization that evaluates research in all aspects of health care. Systematic reviews draw evidence-based conclusions about medical practice after considering both the content and quality of existing trials on a topic.

“For those who have tried all nonsurgical approaches – including bladder retraining, physiotherapy for the pelvic floor muscles and medications – yet the symptoms persist, it is worth discussing this option with your primary care doctor, who may refer you on to a urologist,” said review co-author Dr. Edwin Arnold, at the department of urology at Christchurch Hospital, in New Zealand. “This treatment is not for everyone and even if the operation is undertaken, it does not always work, so a patient’s expectations should remain realistic.”

Up to 30 percent of those who are evaluated for the implant are not good candidates and do not receive an implant, reviewers say. Of those who get the implants, another 30 percent might not see any benefit or find that the implants lose usefulness over time.

Those who would benefit from the procedure fall into two groups.

“Patients who might be considered are those in whom all nonsurgical approaches have been tried and whose symptoms remain bothersome and persistent,” Arnold said. “This includes those who have increased daytime frequency of passing urine, who need to rise at night to empty the bladder and associated urgency with or without urge incontinence.”

The second group of patients is relatively uncommon: those who are unable to empty the bladder yet have no mechanical obstruction.

Peters, who had no affiliation with the review, said that the results show there are other effective alternatives to help improve a person’s quality of life and manage their voiding complaints.

“This report supports the technology of neurostimulation, which has been literally life changing for many of my patients,” Peters said. “There is now very solid evidence that the procedure is useful, safe, reversible and should be an option in the treatment of more patients with these concerns.”

The review also helps to identify those who would benefit from the therapy, according to Stanley Zaslau, associate professor in the department of urology at West Virginia University, in Morgantown.

“Sacral neuromodulation has shown long-term effectiveness in treating voiding dysfunction,” Zaslau said. “This device should be considered by those who have failed other therapies but are motivated to achieve a cure in their disease.”

Manufacturers of these implants supported at least two of the reviewed studies, the review disclosed.


Story Source:

The above story is based on materials provided by Center for Advancing Health. Note: Materials may be edited for content and length.


Journal Reference:

  1. Herbison et al. Sacral neuromodulation with implanted devices for urinary storage and voiding dysfunction in adults. Cochrane Database of Systematic Reviews Reviews, 2009; DOI: 10.1002/14651858.CD004202.pub2

Cite This Page:

Center for Advancing Health. "Electrical Implant Might Help With Bladder Control." ScienceDaily. ScienceDaily, 16 April 2009. <www.sciencedaily.com/releases/2009/04/090415171547.htm>.
Center for Advancing Health. (2009, April 16). Electrical Implant Might Help With Bladder Control. ScienceDaily. Retrieved December 22, 2014 from www.sciencedaily.com/releases/2009/04/090415171547.htm
Center for Advancing Health. "Electrical Implant Might Help With Bladder Control." ScienceDaily. www.sciencedaily.com/releases/2009/04/090415171547.htm (accessed December 22, 2014).

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