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Published on: October 17, 2018
Penile vibratory stimulation in spinal cord injured men: optimized vibration parameters and prognostic factors
D A Ohl1, A C Menge, J Sønksen
1Department of Surgery, University of Michigan Medical Center, Ann Arbor.
Objective:
To study the efficacy of penile vibratory stimulation (PVS) with optimized vibration parameters in spinal cord injured (SCI) men and to examine prognostic factors for success.
Design:
Case series.
Setting:
University hospital outpatient clinic.
Patients:
Thirty-four consecutive SCI men seeking fertility treatment.
Intervention:
PVS with optimized vibration parameters to induce reflex ejaculation.
Main Outcome Measures:
Ejaculatory response; semen analysis.
Results:
Antegrade ejaculation was seen in 65% of patients. High rates were seen in lesions above T10 (81%) and in presence of hip flexion and bulbocavernosus reflexes (77%). Of men with lesions above T10, those with a penile prosthesis had lower ejaculation rates (40% vs 90%). Average total sperm counts were 968 million, with 26% motility.
Conclusions:
High rates of ejaculation are seen with optimized vibration parameters, especially in men with lesions above T10 and intact lower spinal reflexes. A penile prosthesis may impair success with PVS.
