Table 2.
Literature reviewing the acute urodynamic effects of TENS.
| First author year | Diagnosis | n | Site | Stimulus pulse parameters |
Study details | Urodynamic outcome | ||
|---|---|---|---|---|---|---|---|---|
| Frequency | Pulse width | Intensity | ||||||
| Hasan et al., 1996 [12] | IDI | 36 | PTN suprapubic | 50 Hz | 200 μs | Tickling sensation | Part of the large study | No significant difference in any of the parameters |
| 59 | S2–S3 T12 (sham) control | 50 Hz | 200 μs | Tickling sensation | 3 groups, sham, control | MCC significantly increased in S2–S3 stimulation in compare to sham and control | ||
| Bower et al., 1998 [23] | DI, SU | 79 | Sacral | 10 Hz | 200 μs | Max. tolerable sensation | 3 groups, sham | increased Max. DP and FDV |
| Suprapubic | 150 Hz | 200 μs | increased Max. DP and FDV | |||||
| Sham | No stimulation | increased MCC in SU pts. | ||||||
| Walsh et al., 2001 [29] | IDI, SU, DH (SCI, MS) | 146 | Perianal dermatomes | 10 Hz | 200 μs | – | Control group | FDV (p = 0.002) and MCC (p = 0.0009) improved in compare to control |
| Amarenco et al., 2003 [37] | MS, SCI, PD, IDI | 44 | PTN | 10 Hz | 200 μs | Below motor response | Acute effect | 48% (21/44) increased volume at FIDC, 34% (15/44) increased MCC |
| Fjorback et al., 2007 [30] | MS | 12 | Sacral | 20 Hz | 500 μs | 50–60 mA | Conditional stimulation | 0/12 were able to supressed detrusor contraction |
| DPN | 20 Hz | 500 μs | 50–60 mA | 10/12 were able to supressed detrusor contraction | ||||
DH, detrusor hyperreflexia; DI, detrusor instability; DPN, dorsal penile/clitoral nerve; FDV, first desire to void; FIDC, first involuntary detrusor contraction; IDI, idiopathic detrusor instability; MCC, maximum of cystometry capacity; MS, multiple sclerosis; PD, Parkinson's diseases; PTN, posterior tibial nerve; SCI, spinal cord injury; SU, sensory urgency.