Gate Mechanism and Parameter Analysis of Anodal-First Waveforms for Improving Selectivity of C-Fiber Nerves

He, Siyu; Tripanpitak, Kornkanok; Yoshida, Yu; Takamatsu, Shozo; Huang, Shao Ying; Yu, Wenwei

doi:10.2147/jpr.s311559

Cited by 1 publication

(1 citation statement)

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“…Some studies have suggested that changes in the pulse rate can improve clinical outcomes 29 , 30 . In an experiment involving sinusoidal electrical stimulation, 2000 Hz selectively activated Aβ nerve fibers, 250 Hz activated Aδ fibers, and 5 Hz activated C fibers 31 . It can be assumed that a change in pulse frequency affects the activation of different nerve fibers.…”

Section: Discussionmentioning

confidence: 99%

Preliminary analysis of stimulation parameters for sacral neuromodulation in different indications: a multicenter retrospective cohort study from China

Meng,

Yan,

Wang

et al. 2024

International Journal of Surgery

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Background: Sacral neuromodulation (SNM) is an effective approach for treating lower urinary tract dysfunction (LUTD), and stimulation programming is essential for successful treatment. However, research on SNM programming for various indications is limited. Thus, we aimed to determine whether there were differences in the stimulation parameters for different SNM indications and the appropriate programming recommendations. Materials and Methods: Clinical data were retrospectively collected from patients with LUTD who underwent SNM and completed internal pulse generator (IPG) implantation. The parameters with the highest patient satisfaction or the most symptom improvement during the test period were considered optimal and used to set the programming after IPG implantation. Results: After screening, 282 patients were enrolled and categorized into four groups based on the following indications: refractory overactive bladder (OAB) (n=61), neurogenic lower urinary tract dysfunction (nLUTD) (n=162), interstitial cystitis/painful bladder syndrome (IC/BPS) (n=24), and idiopathic non-obstructive urinary retention (NOUR) (n=35). When analyzing the optimal stimulus parameters, disparities in the stimulation amplitude and pulse frequency were noted among the four groups. The stimulation amplitude in the nLUTD group was higher than that in the idiopathic NOUR group (P=0.013). Differences in pulse frequency were observed between the refractory OAB and nLUTD groups (P<0.001) and between the refractory OAB and idiopathic NOUR groups (P=0.001). No differences in the electrode configuration or pulse width settings existed among the four groups. Conclusions: The stimulation parameters for SNM varied among the different indications. For the initial programming of stage I, most patients are recommended to start with stimulation amplitudes below 2 V, although patients with nLUTD may benefit from higher amplitudes. A standard pulse width of 210 μs is recommended for all patients. However, for individuals experiencing nLUTD or idiopathic NOUR, the pulse frequency can begin above the standard 14 Hz but not exceed 50 Hz.

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Section: Discussionmentioning

confidence: 99%