Table 1.
Baseline characteristics of patients with overactive bladder refractory to SNM
| Characteristica) | Treatment success | Treatment failure | 2-tailed P-valueb) |
|---|---|---|---|
| No prior SNM | 50 | 22 | |
| Male | 7 | 4 | |
| Female | 43 | 18 | |
| Prior SNM | 7 | 11 | |
| Male | 4 | 4 | |
| Female | 3 | 7 | |
| Age (yr) | 74 (50–80) | 77 (62–80) | 0.436 |
| Bladder capacity (mL) | 322 (97–546) | 210 (144–339) | 0.618 |
| Mean UDC volume (mL) | 266 (97–321) | 178 (131–364) | 0.874 |
| Daytime voiding frequency | 11 (6–15) | 8 (4–17) | 0.056 |
| Nocturia | 2 (0–5) | 3 (0–7) | 0.804 |
| Daily pad usage | 2 (0–10) | 2 (0–20) | 0.854 |
| AUASS | 15 (0–24) | 24 (8–32) | 0.130 |
| Quality of life | 5 (2–6) | 4 (1–6) | 0.543 |
| M-ISI severity | 21 (0–30) | 21 (3–32) | 0.685 |
| M-ISI bother | 6 (0–8) | 5 (0–8) | 0.441 |
| AUAQ1 | 1 (0–5) | 4 (1–5) | 0.059 |
| AUAQ2 | 5 (0–5) | 5 (2–5) | 0.896 |
| AUAQ3 | 3 (0–4) | 3 (1–5) | 0.375 |
| AUAQ4 | 5 (0–5) | 4 (0–5) | 0.541 |
| AUAQ5 | 0 (0–5) | 4 (0–5) | 0.030 |
| AUAQ6 | 0 (0–1) | 2 (0–5) | 0.016 |
| AUAQ7 | 2 (0–5) | 3 (1–5) | 0.437 |
Values are presented as number or median (range).
SNM, sacral neuromodulation; UDC, uninhibited detrusor contractions; AUASS, American Urological Association Symptom Score; M-ISI, Michigan Incontinence Severity Index; AUAQ1-7, American Urological Association Symptom Score questions.
a)
Sex, age, bladder capacity, mean UDC volume, daytime voiding frequency, nocturia, pad usage, and questionnaire scores listed are for the 18 patients with prior SNM exposure.
b)
Mann-Whitney U-test.