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Therapeutic Durability of the Male Transobturator Sling: Mid-term Patient Reported Outcomes

Hanhan Li1, Bradley C. Gill1, Amy S. Nowacki1, Drogo K. Montague1,2, Kenneth W. Angermeier1,2, Hadley M. Wood1,2, and Sandip P. Vasavada1,2

1Cleveland Clinic Lerner College of Medicine, Case Western Reserve University
2Glickman Urological and Kidney Institute, Cleveland Clinic Foundation

Abstract

The male transobturator AdVance sling is currently being utilized for mild to moderate post-prostatectomy incontinence (PPI). We wanted to determine the mid-term patient reported outcomes through a telephone survey and chart-review.

Our results demonstrate that from initial office visit to 2 years, quantitative success declined by 25% and pad use doubled from 0.8±1.7 to 1.7±2.5 pads per day (PPD). Patient-determined success was 53.6% at 2 years. A subgroup of 25 patients interviewed at 7 and 29 months post-sling had quantitative success significantly decrease by 20% (p=0.03), subjective success decline by 4% (p=0.56), and pad use significantly increase (p=0.01) from 1.4±2.2 to 2.3±3.2 PPD. Although a majority of patients receiving the AdVance sling did see improvement in PPI and a decrease in pad use, 20% had worsened efficacy over time. Despite this, patients remained satisfied and perceived their treatment as successful.

The following tables are supplemental to the manuscript currently in press at the Journal of Urology.

Charted Baseline Characteristics
  n median (Q1-Q3) mean (sd)
Age 66 66.3 (62.3-72.7) 66.7 (8.3)
Body mass index (kg/m2) 66 26.7 (24.6-29.3) 27.3 (3.8)
Time from prostatectomy to sling (mos) 66 22.9 (12.9-72.8) 50.5 (54.9)
Charted pre-sling pads/day 62 2 (1-3) 2.8 (2.3)
       
24-Hr pad wt (gm) 26 148 (60-367.3) 233.0 (214.0)
P Det at Q Max 36 22.5 (11.3-33.8) 27.3 (21.8)
Bladder capacity (ml) 43 345 (287-400) 356.6 (102.0)
Max flow pressure (cm H2O) 44 13.5 (9.0-20.5) 17.0 (11.7)
Valsalva leak point (cm H2O) 36 75.5 (52.5-110.5) 91.4 (54.9)
Volume at leakage (ml) 37 285 (199.5-311.5) 275.4 (107.3)
       
  n no. pts (%)  
Type of incontinence 66    
    Stress   53 (80.3)  
    Mixed   12 (18.2)  
Etiology of incontinence 66    
    Radical prostatectomy   65 (98.5)  
    Laser TURP   1 (1.5)  
Prostatectomy type 66    
    None   1 (1.5)  
    Open   30 (45.4)  
     Lap/robotic   29 (43.9)  
    Perineal   1 (1.5)  
    Unknown   5 (7.6)  
Radiation history (EBRT) 66 4 (6.1)  
Cancer free 66 61 (92.4)  
Previous incontinence treatment 66    
    AUS   5 (7.6)  
    Clamp   5 (7.6)  
    Medications   20 (30.2)  
    Kegels   19 (28.8)  
    Periurethral collagen   7 (10.6)  
    Bone-anchored sling   1 (1.5)  
Erectile dysfunction 64 60 (93.8)  
Sexually active 63 42 (66.7)  
Smoking history 66 30 (45.5)  

Baseline demographic data was obtained via chart review. In summary, 66 patients (mean age 67, BMI 27) received the sling at a median 23 months post-prostatectomy. Median baseline charted pad use was 2(1-3) PPD.

Surgeon Experience
  First 10 mean (sd) Last 10 mean (sd) p Value
Age 64.4 (11.3) 64.7 (7.3) 0.97
BMI 25.7 (2.7) 29.2 (5.3) 0.19
Charted pre-sling pads/day 2.3 (1.0) 1.9 (1.0) 0.41
       
Chart mean (sd) mean (sd) p Value
Time since sling to most recent office visit (mos) 1.5 (1.0) 1.6 (0.4) 0.10
Charted post-sling pads/day 0.4 (0.5) 0.4 (1.0) 0.48
       
  no. pts no. pts p Value
Quantitative cure (0 pads/day) 6 8 0.63
Quantitative improvement (1-2 pads/day) 4 0 0.09
Quantitative success (cure and improved) 10 8 0.47
       
Surveys Survey 1 Survey 2 p Value
Time from sling to survey (mos) 10.0 (4.2) 13.2 (3.5) 0.05
Surveyed pre-sling pads/day 2.4 (1.1) 2.1 (1.3) 0.64
Surveyed post-sling pads/day 1.2 (1.1) 0.4 (0.7) 0.11
Mean change in pads/day 1.1 (1.2) 1.5 (1.1) 0.51
       
  no. pts no. pts p Value
Refer a friend 4 7 0.37
Quantitative cure (0 pads/day) 4 7 0.37
Quantitative improvement (1/2 pads/day) 4 1 0.30
Quantitative success (cure and improved) 8 8 1
Subjective success (PGI-I very much and much better) 5 7 0.65

Surgeon experience was analyzed using the first and last 10 cases of the surgeon with the greater number of patients. No significant differences were noted in pre-sling PPD (pads per day), post-sling PPD, change in mean PPD, willingness to refer the procedure to a friend, quantitative success, or subjective success.