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  4. Safety and Efficacy of a Patient-Controlled Bladder Management System for Treating Urinary Retention in Men

Safety and Efficacy of a Patient-Controlled Bladder Management System for Treating Urinary Retention in Men

Neurourol Urodyn, 2016 · DOI: 10.1002/nau.22770 · Published: June 1, 2016

UrologyBiomedical

Simple Explanation

The CymActive Bladder Management System (BMS) is a self-retaining catheter placed inside the urethra. It features a patient-controlled magnetic valve, enabling the bladder to fill and empty in cycles without the need for external devices. This study assessed the safety and effectiveness of the BMS in men experiencing urinary retention who required catheterization for more than 7 days. The study found the BMS to be potentially useful, convenient, and safe for appropriate patients with urinary retention. A follow-up study is planned to identify which patients benefit most from the device.

Study Duration
30 days
Participants
23 men (18 non-neurogenic, 5 neurogenic)
Evidence Level
Pilot study

Key Findings

  • 1
    Nine of 23 patients met all four criteria for the primary endpoint (successful placement, low post-void residual volume, no device-related adverse events requiring early removal, and successful removal).
  • 2
    The I.U.C. was inserted successfully in 17 of 18 non-neurogenic patients and 5 of 5 SCI patients.
  • 3
    Median PVR was 17 mL (range, 0 to 178).

Research Summary

This study evaluated the CymActive Bladder Management System (BMS), an intraurethral catheter with a patient-controlled magnetic valve, in men with urinary retention. The primary endpoint assessed successful placement, post-void residual volume, adverse device-related events, and removal. Results showed the BMS was potentially useful, convenient, and safe for appropriate patients. Further studies are planned to better define which patients benefit from this device and whether antimuscarinic agents improve outcomes.

Practical Implications

Improved Bladder Management

The CymActive BMS offers a patient-controlled alternative to traditional catheterization methods, potentially increasing patient autonomy and convenience.

Reduced Risk of Complications

The entirely contained design of the CymActive catheter within the urethra may reduce the risk of urinary tract infections compared to external catheter systems.

Personalized Treatment

Future studies will help identify specific patient characteristics that predict successful outcomes with the CymActive BMS, allowing for more personalized treatment approaches.

Study Limitations

  • 1
    Small sample size
  • 2
    Heterogeneity of patients in terms of causality of urinary retention
  • 3
    Urine cultures were obtained only if dipsticks were positive

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