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The incidence proportion of erectile dysfunction in patients treated with cryotherapy for prostate cancer: a meta-analysis

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Abstract

Objectives

With the maturity of cryotherapy for prostate cancer, the complications after operation are also decreasing, which can improve the prognosis of patients. However, erectile dysfunction (ED) is still one of the main complications after cryotherapy. Therefore, we performed a meta-analysis to evaluate the incidence of erectile dysfunction in patients after cryotherapy.

Materials and methods

A comprehensive literature search was performed in August 2018. PUBMED and EMBASE databases were searched to collect studies reporting the incidence rate of ED after cryotherapy from 2002 to 2018. Two reviewers independently screened the literatures, extracted data and assessed the risk of bias of included studies. Pooled ratio and its 95% confidence intervals (95% CIs) were performed by Stata 12.1.

Results

Of the 157 articles identified on August 1st 2018, 23 studies which reported ED after cold ablative therapy were identified, however, only 12 used validated outcome measures and met inclusion criteria. A total of 12 studies were included in this meta-analysis. Overall, the results of this meta-analysis showed that the pooled incidence rate of ED was 0.27 (95% CI 0.26–0.28) which means that the incidence rate of ED after cryotherapy for prostate cancer was not high, but we still found that there are great heterogeneity between the 12 articles. By subgroup analysis, we found a statistically significant incidence rate of ED in primarily localized PCa which was 0.49 (95% CI 0.30–0.68), which is clearly lower than the incidence of recurrent prostate cancer after failed primary radiotherapy 0.61 (95% CI 0.43–0.79).

Conclusion

ED is one of the major complications after cryotherapy for PCa. Furthermore, subgroup analysis revealed a higher incidence rate in PCa undergoing radiotherapy. Significantly, with the development of cryotherapy technology, the incidence of ED after cryotherapy for prostate cancer is decreasing. While we still need further researches to advance knowledge in this field.

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Authors and Affiliations

  1. The Second Hospital of Tianjin Medical University, Tianjin, People’s Republic of China

    J. T. Zhou, D. M. Fang, S. Xia, T. Li & R. L. Liu

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  1. J. T. Zhou
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  2. D. M. Fang
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  3. S. Xia
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  4. T. Li
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  5. R. L. Liu
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Correspondence to R. L. Liu.

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Zhou, J.T., Fang, D.M., Xia, S. et al. The incidence proportion of erectile dysfunction in patients treated with cryotherapy for prostate cancer: a meta-analysis. Clin Transl Oncol 21, 1152–1158 (2019). https://doi.org/10.1007/s12094-019-02036-8

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  • DOI: https://doi.org/10.1007/s12094-019-02036-8

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