Abstract
To evaluate the efficacy and morbidity of BPH treatment by radiofrequency in the general population and attempt to identify factors of prognostic value for this technique. This retrospective study examined 76 consecutive patients of mean age 68.9 years with symptomatic BPH in failure of medical treatment and treated at University Hospital of Caen between April 2004 and October 2008. Urine status was assessed before and after treatment with radiofrequency by the international prostate symptom score (IPSS), the quality of life (QOL) score related to urinary symptoms, the measurement of maximum urinary flow (Qmax) and residual postvoid volume (RPV). Erectile function was assessed by the International Index of Erectile Function (IIEF-5). The primary endpoint was treatment failure by radiofrequency regarded as the reintroduction of medical treatment or the need for surgical treatment. The secondary endpoints were the improvement of IPSS and QOL score, Qmax and RPV. Morbidity per and post-operative was also evaluated. A significant improvement in voiding status was observed with an average IPSS score from 24.7 to 15.1 (P<0.0001), and a QOL score from 5.2 to 2.9 (P<0,0001) in all patients. The Qmax and the RPV were significantly improved from 8.6 to 13.1ml/s (P<0.0001) and 177 to 100ml (P=0.0002) respectively. The IIEF-5 score was improved from 9.04 to 9.97 (P=0.0164). Twenty-five percent of acute urinary retention, 7.9% of haematuria and 1.3% of prostatitis were observed postoperatively. The overall retreatment rate was 46% after 14.6 months mean follow-up. When stratified into groups, patients with the inclusion criteria to this treatment showed a treatment rates of 34.8% after 16.2 months mean follow-up against 51% after 13.8 months of monitoring patients outside the inclusion criteria. Without showing significant difference between retentionist and no retentionist concerning subjective and objective parameters, the rate of retreat was more important for retentionist (51.2% after 11.8 months of mean follow against 39.4% after 18.4 months) with a significant difference on the actuarial cumulative survival curve without reprocessing. There was no significant difference found in patients with a median lobe. The results showed an improvement in Qmax significantly greater in the group with prostates less than 60 g without being able to demonstrate significant differences in other parameters. The retreatment rates in this group was 44.4% after 14.7 months of follow-up against 53.8% after 13.8 months of follow-up in the group of patients with prostate over 60 g. Moreover, the irritative component made a better initial response to treatment with a need for retreatment delayed compared to the group of patients with obstructive symptom, without noting significant differences in terms of improvement of objective and subjective parameters. The rate of retreatment was 63.6% after 16.4 months of mean follow and 51.6% after 11.2 months in the "obstructive" group. High rates of reprocessing are observed in the treatment of BPH by radiofrequency if inclusion criteria are not respected.
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