All Products
Also known as
Double cuff artificial urinary sphincter, tandem artificial urinary sphincter, dual cuff AUS, tandem transcorporal artificial urinary sphincter cuff, sequential cuff placement
Definition
A tandem cuff is a surgical configuration in which two artificial urinary sphincter (AUS) cuffs are placed in series around the urethra to improve continence in patients with stress urinary incontinence, particularly in cases where a single cuff has failed due to urethral atrophy or when there is a high risk of erosion or infection.1 2 This technique involves placing a second urethral cuff either proximal or distal (typically 1-2cm apart) to an existing cuff, with both cuffs connected to a single pressure-regulating balloon and control pump via a Y-shaped adapter.3 4 The tandem configuration aims to provide additional circumferential compression of the urethra, thereby enhancing the occlusive effect and improving continence outcomes in challenging cases.5
Clinical Context
The tandem cuff configuration is primarily used as a salvage procedure in patients who have experienced recurrent stress urinary incontinence following primary artificial urinary sphincter placement.1 This clinical scenario most commonly occurs due to urethral atrophy, which develops when constant circumferential compression of the corpus spongiosum by the AUS leads to tissue thinning over time.4
Patient selection criteria for tandem cuff placement include:
- Patients with post-prostatectomy stress urinary incontinence who have failed primary AUS placement5
- Patients with confirmed urethral atrophy (identified during cystoscopy as incomplete urethral coaptation with device cycling)4
- Patients with persistent incontinence despite adequate fluid in the AUS system5
- Cases with high risk of repeat erosion or infection after failed AUS placement2
The surgical implantation process involves placing a second cuff approximately 1-2cm distal or proximal to the existing cuff.4 A Y-shaped adapter is used to connect the pump tubing to both cuffs, and additional fluid (1-3cc) is added to the system to account for the volume sequestered in the second cuff.4 In cases with severely atrophic urethral tissues (measurement <3.5cm), distal urethral tapering, or difficult dissection planes (e.g., in patients with prior pelvic radiation therapy or urethral sling placement), a transcorporal approach may be utilized.2
Clinical outcomes following tandem cuff placement show significant improvement in continence. Studies report a decrease in daily pad use from a median of 5.0 to 2.0 pads (p<0.001),2 with 56-69% of patients requiring 2 or fewer pads daily.2 Patient satisfaction is generally high, with 88-94% of patients reporting they would undergo the procedure again or recommend it to others.1 However, complications can include cuff erosion (approximately 11%) and device infection, particularly in patients undergoing androgen deprivation therapy.2 3 The 3-year device survival rate is approximately 76%, which is comparable to single cuff downsizing procedures.4