Mechanical devices for urinary incontinence in women.

Background ncontinence can have a devastating effect on the lives of sufferers with significant economic implications. Non-surgical treatments such as pelvic floor muscle training and the use of mechanical devices are usually the first line of management, particularly when a woman does not want surgery or when she is considered unfit for surgery. Mechanical devices are inexpensive and do not compromise future surgical treatment. Objectives To determine the effects of mechanical devices in the management of adult female urinary incontinence. Search strategy We searched the Cochrane Incontinence Group Specialised Register (searched 23 June 2010), EMBASE (January 1947 to 2010 Week 24), CINAHL (January 1982 to 11 June 2010) and the reference lists of relevant articles. Selection criteria All randomised or quasi-randomised controlled trials of mechanical devices in the management of adult female urinary incontinence determined by symptom, sign or urodynamic diagnosis. Data collection and analysis The reviewers assessed the identified studies for eligibility and risk of bias and independently extracted data from the included studies. Data analysis was performed using RevMan software (version 5.0.25). Main results One new trial was identified and included in this update bringing the total to seven trials involving 732 women. Two small trials compared a mechanical device with no treatment and although they suggested that use of a mechanical device might be better than no treatment, the evidence for this was inconclusive. Four trials compared one mechanical device with another. Quantitative synthesis of data from these trials was not possible because different mechanical devices were compared in each trial using different outcome measures. Data from the individual trials showed no clear difference between devices, but with wide confidence intervals. One new trial compared three groups: a mechanical device alone, behavioural therapy (pelvic floor muscle training) alone and behavioural therapy combined with a mechanical device. While at three months, there were more withdrawals from the device-only group, at 12 months group differences between the groups were not sustained on any measure. Authors' conclusions The place of mechanical devices in the management of urinary incontinence remains in question. Currently there is little evidence from controlled trials on which to judge whether their use is better than no treatment and large well-conducted trials are required for clarification. There was also insufficient evidence in favour of one device over another and little evidence to compare mechanical devices with other forms of treatment.