Cohort study comparing prostate photovaporisation with XPS 180 W and HPS 120 W laser

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• 作者：B. Ló ; pez^a ; ^{blopezl@hotmail.com" class="auth_mail" title="E-mail the corresponding author} ; C. Capitá ; n^a ; V. Herná ; ndez^a ; E. de la Peñ ; a^a ; I. Jimé ; nez-Valladolid^a ; A. Guijarro^a ; E. Pé ; rez-Ferná ; ndez^b ; C. Llorente^a
• 关键词：Benign prostate hyperplasia ; Greenlight laser ; Lower urinary tract symptoms ; Prostate photovaporisation
• 刊名：Actas Urológicas Espa?olas (English Edition)
• 出版年：2016
• 出版时间：January-February 2016
• 年：2016
• 卷：40
• 期：1
• 页码：49-54
• 全文大小：487 K

文摘

Prostate photovaporisation with Greenlight laser for the surgical treatment of benign prostate hyperplasia has rapidly evolve to the new XPS 180 W.

We have previously demonstrated the safety and efficacy of the HPS 120 W. The aim of this study was to assess the functional and safety results, with a year of follow-up, of photovaporisation using the XPS 180 W laser compared with its predecessor.

Material and methods

A cohort study was conducted with a series of 191 consecutive patients who underwent photovaporisation between 1/2008 and 5/2013.

The inclusion criteria were an international prostate symptom score (IPSS) >15 after medical failure, a prostate volume <80 cm³ and a maximum flow <15 ml/s.

We assessed preoperative and intraoperative variables (energy used, laser time and total surgical time), complications, catheter hours, length of stay and functional results (maximum flow, IPSS, prostate-specific antigen and prostate volume) at 3, 6 and 12 months.

We analyzed the homogeneity in preoperative characteristics of the 2 groups through univariate analysis techniques. The postoperative functional results were assessed through an analysis of variance of repeated measures with mixed models.

Results

A total of 109 (57.1%) procedures were performed using HPS 120 W, and 82 (42.9%) were performed using XPS. There were no differences between the preoperative characteristics.

We observed significant differences both in the surgical time and effective laser time in favor of the XPS system. This advantage was 11% (48 ± 15.7 vs. 53.8 ± 16.2, p <  .05) and 9% (32.8 ± 11.7 vs. 36 ± 11.6, p <  .05), respectively. There were no statistically significant differences in the rest of the analyzed parameters.

Conclusion

The technical improvements in the XPS 180 W system help reduce surgical time, maintaining the safety and efficacy profile offered by the HPS 120 W system, with completely superimposable results at 1 year of follow-up.