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  4. Midodrine in patients with spinal cord injury and anejaculation: A double-blind randomized placebo-controlled pilot study

Midodrine in patients with spinal cord injury and anejaculation: A double-blind randomized placebo-controlled pilot study

The Journal of Spinal Cord Medicine, 2015 · DOI: 10.1179/2045772314Y.0000000225 · Published: January 1, 2015

Spinal Cord InjuryUrologyRehabilitation

Simple Explanation

This study investigates whether midodrine, a medication used to treat low blood pressure, can help men with spinal cord injuries (SCI) who cannot ejaculate to achieve antegrade ejaculation. The study involved a double-blind, randomized, placebo-controlled trial, where some men received midodrine and others a placebo, followed by penile vibratory stimulation (PVS). The results showed that midodrine, combined with PVS, did not significantly improve the rate of antegrade ejaculation compared to the placebo group. The small sample size limits definitive conclusions.

Study Duration
4 Years
Participants
23 men with anejaculation associated with SCI
Evidence Level
Level 1: Prospective, double-blind, randomized, placebo-controlled pilot study

Key Findings

  • 1
    Treatment of anejaculation after SCI with midodrine and PVS did not result in a better rate of antegrade ejaculation in 10 men than in 10 men treated with a placebo and PVS.
  • 2
    Only one participant (10%) from the midodrine group reached ejaculation while two participants (20%) from the placebo group reached ejaculation.
  • 3
    A significant average increase of 16.2 mm was observed in systolic BP for the group M 1 hour after taking midodrine (P < 0.001).

Research Summary

This study aimed to evaluate the efficacy of midodrine in treating anejaculation in men with SCI. It was a prospective, randomized, placebo-controlled, double-blind study. The study found that midodrine, when combined with penile vibratory stimulation (PVS), did not significantly improve the rate of antegrade ejaculation compared to placebo. The small sample size and difficulties in recruitment were noted as limitations, suggesting the need for larger, multicenter trials to further evaluate midodrine's efficacy.

Practical Implications

Limited Efficacy of Midodrine

The study suggests that midodrine may not be an effective treatment for anejaculation in men with SCI when combined with PVS.

Need for Further Research

Larger, multicenter trials are needed to further evaluate the efficacy of midodrine on anejaculation in men with SCI.

Alternative Treatment Strategies

Alternative treatment strategies should be explored for men with SCI and anejaculation, considering the limited success of midodrine in this study.

Study Limitations

  • 1
    Small sample size
  • 2
    Difficulty in participant recruitment
  • 3
    PVS failure defined after only one trial

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