This is a secondary analysis of a prospective interventional randomized pilot study of women (n=60), with predominately stress urinary incontinence (SUI) with leakage at least 3 times per week over the last 3 months, randomized into two groups; 1) biofeedback group used the Femfit® system to complete the PFM training (device and mobile application) intervention for 12 weeks and 2) non-biofeedback control used the same mobile application and PFM training but did not use a Femfit®. The Femfit® measured pressure generated by the pelvic floor during a voluntary maximal PFM contraction while supine and repeated while upright (3 × 5 second contractions in each position). The device (distal 1 to 6) captured PFM function characteristics, peak PFM pressure (during maximal voluntary PFM contraction) in both supine and upright positions. Multiple distal sensors detected a peak PFM pressure during maximal voluntary PFM contraction.
The vaginal pressure profile changes depend on posture, device placement, anatomical adjustment to an internal device and natural anatomical movement. The array of eight pressure sensors used in this study can accommodate this variation. The authors noted that a global pressure change (measured by a perineometer) would not capture the magnitude of PFM pressure generated during a voluntary PFM contraction, whereas a pressure sensor array can. The authors concluded that there is intra-participant sensor variation when detecting peak PFM pressure across a posture change, and inter-participant variability when comparing PFM contractions in similar and different postures. Overall, the Femfit® pressure sensor array enables users to identify peak PFM pressures and this information can help to determine effective PFM contraction.
Presented by: Laura Pedofsky, Auckland Bioengineering Institute, University of Auckland, New Zealand
Written by: Diane Newman, DNP, CRNP, FAAN, BCB-PMD, Urologic Nurse Practitioner, Adjunct Professor of Urology in Surgery, Senior Research Investigator, Perelman School of Medicine, University of Pennsylvania during the International Continence Society Annual Meeting, September 7-10, 2022, Vienna, Austria.
- Cacciari et al (2020) Reliability and validity of intravaginal pressure measurements with a new intravaginal pressure device: The FemFit® Neurourol Urodyn. Jan;39(1):253-260. doi: 10.1002/nau.24179
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