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. 2017 Dec;35(12):1923-1931.
doi: 10.1007/s00345-017-2091-8. Epub 2017 Sep 23.

A novel vaporization-enucleation technique for benign prostate hyperplasia using 120-W HPS GreenLight™ laser: Seoul technique II in comparison with vaporization and previously reported modified vaporization-resection technique

Sangjun Yoo  1 , Juhyun Park  1 , Sung Yong Cho  1 , Min Chul Cho  1 , Hyeon Jeong  1 , Hwancheol Son  2
Affiliations

A novel vaporization-enucleation technique for benign prostate hyperplasia using 120-W HPS GreenLight™ laser: Seoul technique II in comparison with vaporization and previously reported modified vaporization-resection technique

Sangjun Yoo et al. World J Urol. 2017 Dec.

Abstract

Purpose: We developed a novel vaporization-enucleation technique (Seoul II), which consists of vaporization-enucleation of the prostate using 120-W HPS GreenLight laser, and enucleated prostate resection using bipolar devices for tissue removal. We compared the outcomes of the Seoul II with vaporization and a previously reported modified vaporization-resection technique (Seoul I).

Methods: Among patients with benign prostate hyperplasia who underwent transurethral surgery using GreenLight laser at our institute, 347 patients with prostate volume ≥ 40 ml were included. The impact of surgical techniques on efficacy and postoperative functional outcomes was compared.

Results: No difference was found in baseline characteristics, although the prostate volume was marginally greater in Seoul II (p = 0.051). Prostate volume reduction per operation time (p < 0.001) and lasing time (p = 0.016) were greater in Seoul II. At postoperative 12 months, the International Prostate Symptom Score (I-PSS) was lower (p = 0.011), and the decrement in I-PSS was greater in Seoul II (p = 0.001) than other techniques. In multivariate analysis, postoperative 12-month I-PSS for Seoul II was significantly superior to vaporization (p < 0.001), although it was similar to Seoul I. The maintenance of immediate postoperative I-PSS decrement, until postoperative 12 months was superior in Seoul II compared with vaporization (p = 0.014) and Seoul I (p = 0.048).

Conclusions: Seoul II showed improved efficacy and voiding functional maintenance over postoperative 12 months in patients with prostate volume ≥ 40 ml compared with vaporization and Seoul I. This technique could be easily accepted by clinicians who are familiar with GreenLight lasers and add flexibility to surgery without additional equipment.

Keywords: Lasers; Prostatic hyperplasia; Transurethral resection of prostate.

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References

    1. J Endourol. 2015 Jun;29(6):700-6 - PubMed
    1. J Urol. 2002 Oct;168(4 Pt 1):1470-4 - PubMed
    1. BJU Int. 2012 Dec;110(11 Pt C):E864-9 - PubMed
    1. J Urol. 2003 Oct;170(4 Pt 1):1270-4 - PubMed
    1. Urology. 2011 Feb;77(2):427-32 - PubMed

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