title: Determination of prostate adenoma weight reduction due to vaporisation process occurring during transurethral resection of the prostate.
abstract: BACKGROUND
  Transurethral resection of the prostate (TURP) is regarded as the gold standard surgical treatment for benign prostatic hyperplasia (BPH). The completeness of TURP may be assessed indirectly by estimation of the weight of glandular tissue removed. This parameter is often lower than expected. Tissue vaporisation in the course of TURP could be a contributory cause.
  
  
  OBJECTIVE
  To quantitatively evaluate tissue vaporisation occurring in the course of transurethral resection of the prostate and electrovaporisation of the prostate (EVAP) performed under experimental conditions.
  
  
  METHODS
  The study was performed on 26 prostate glands removed during retropubic prostatectomy. Immediately following surgery all adenomas were halved and TURP or EVAP were carried out on both halves of each gland for period of 5 min. The amount of prostate tissue which vaporised during EVAP and TURP were calculated.
  
  
  RESULTS
  The mean weight (± standard deviation) of the adenoma lost due to resection and vaporisation in the TURP group was 10.00 ±2.92 g and 4.26 ±1.59 g, respectively. The latter accounted for 30.10 ±7.71% of total prostate weight reduction. The mean prostate weight lost in the course of EVAP was 5.03 ±1.58 g.
  
  
  CONCLUSIONS
  The vaporisation significantly contributes to the prostate tissue loss occurring during transurethral resection of the prostate.
authors.affiliation: Department of Urology, Jagiellonian University Medical College, Krakow, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Szopinski
authors.affiliation: 1 Department of Urology, Postgraduate Medical Education Centre, European Health Centre, Otwock, Poland.
authors.forename: Tomasz
authors.initials: T
authors.lastname: Golabek
authors.affiliation: Department of Urology, Jagiellonian University Medical College, Krakow, Poland.
authors.forename: Piotr
authors.initials: P
authors.lastname: Chlosta
authors.affiliation: 1 Department of Urology, Postgraduate Medical Education Centre, European Health Centre, Otwock, Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Borówka
keywords: adenoma; transurethral resection of the prostate; vaporisation