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Author Topic: Study on effectiveness of VI  (Read 2419 times)

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Study on effectiveness of VI
« on: July 27, 2011, 04:39:53 AM »

Just found an abstract, (no access to full story) of effectiveness of verapamil injections..
(got an uro-today alert yesterday) Article dated July 2011

Defining predictors of response to intralesional verapamil injection therapy for Peyronie’s disease

I copy and paste what I have:

Study Type – Therapy (case series) Level of Evidence 4

What’s known on the subject? and What does the study add?

Intralesional verapamil (ILV) injection therapy is useful to prevent progression of Peyronie’s Disease in some patients.

These data are analyzed to identify predictors to better indentify patients likely to benefit from ILV therapy.


• To assess factors that predict penile curvature responses to intralesional verapamil (ILV) injection therapy for men with Peyronie’s disease (Peyronies Disease).


• Men with Peyronies Disease for <1 year were assessed at baseline and after 3 months of bi-monthly ILV-injection therapy. Curvature was assessed at the time of maximum penile rigidity.

• Univariate relationships were tested with correlation or chi-square analyses.

• Multivariate analyses included logistic and linear regression.

• We analysed curvature improvement, defined as a decrease of ≥10 ° from baseline. Additionally, the relationship between curvature outcomes and patient age and degree of baseline penile curvature were assessed.


• Data from 131 men were included and the rates of penile curvature change were:26% improved, 12% worsened, and 62% stable.

• Age (r=−0.24, P < 0.01) and larger baseline penile curvature (r= 0.33, P < 0.01) were associated with improved curvature on univariate analysis.

• On multivariate analysis (logistic regression), both age [odds ratio (OR) 0.93, P < 0.01, 95%CI 0.89–0.97] and larger baseline penile curvature (OR 1.07, P < 0.01, 95%CI 1.04–1.11) were associated with improvements in curvature after ILV-injection therapy.

• Improvements in curvature were associated with age (≤40 years vs >40 years; OR 0.27, P < 0.05, 95%CI 0.10–0.75) and degree of penile curvature at baseline (≤30 ° vs >30 °; OR 9.12, P < 0.01, 95%CI 1.94–42.84) when dichotomized as indicated.


• Younger age and larger baseline penile curvature were predictive of favourable curvature outcomes.

• Analysis of dichotomized variables suggests that age and baseline curvature thresholds may be important to consider when deciding on ILV as a therapeutic strategy for Peyronies Disease.
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