title: A prospective, randomised trial comparing plasmakinetic enucleation to standard transurethral resection of the prostate for symptomatic benign prostatic hyperplasia: three-year follow-up results.
abstract: BACKGROUND
  Plasmakinetic enucleation of the prostate (PKEP) has recently been proved a safe and technically feasible procedure for benign prostatic hyperplasia (BPH). However, its long-term safety, efficacy, and durability in comparison with the gold-standard transurethral resection of the prostate (TURP) have not yet been reported.
  
  
  OBJECTIVE
  To report the 3-yr follow-up results of a prospective, randomised clinical trial comparing PKEP with standard TURP for symptomatic BPH.
  
  
  METHODS
  A total of 204 patients with bladder outflow obstruction (BOO) secondary to BPH were prospectively randomised 1:1 into either the PKEP group or the TURP group.
  
  
  METHODS
  The patients in each group underwent the procedure accordingly.
  
  
  METHODS
  All patients were assessed perioperatively and followed at 1, 3, 6, 12, 18, 24, and 36 mo postoperatively. The preoperative and postoperative parameters included International Prostate Symptom Score (IPSS), quality of life (QoL) scores, the International Index of Erectile Function (IIEF) questionnaire, maximum urinary flow rates (Q(max)), transrectal ultrasound (TRUS)-assessed prostate volume, postvoid residual urine (PVRU) volume, and serum prostate-specific antigen (PSA) level. Patient baseline characteristics, perioperative data, and postoperative outcomes were compared. All complications were recorded.
  
  
  CONCLUSIONS
  PKEP was significantly superior to TURP in terms of the drop in haemoglobin (0.74±0.33 g/dl vs 1.88±1.06 g/dl; p<0.001), intraoperative irrigation volume (11.7±4.5 l vs 15.4±6.2 l; p<0.001), postoperative irrigation volume and time (18.5±7.6 l vs. 30.0±11.4 l and 16.6±5.2 h vs 25.3±8.5 h; all p<0.001), recovery room stay (67.3±11.1 min vs 82.0±16.4 min; p<0.001), catheterisation time (51.7±26.3 h vs 80.5±31.6 h; p<0.001), hospital stay (98.4±20.4 h vs 134.2±31.5 h; p<0.001), and resected tissue (56.4±12.8 g vs 43.8±15.5 g; p<0.001). There were no statistical differences in operation time and sexual function between the two groups. At 36 mo postoperatively, the PKEP group had a maintained and statistically significant improvement in IPSS (2.4±2.2 vs 4.3±2.9; p<0.001), QoL (0.6±0.5 vs 1.6±1.4; p<0.001), Q(max) (28.8±10.1 ml/s vs 25.1±8.0 ml/s; p=0.017), and TRUS volume (21.0±7.3 ml vs 26.4±6.8 ml; p<0.001), with urodynamically proven deobstruction (Schäfer grade 0.2±0.02 vs 0.8±0.1; p<0.001). More extensive clinical trials are required to validate these results.
  
  
  CONCLUSIONS
  PKEP is a safe and highly effective technique for relieving BOO. At 3-yr follow-up, the clinical efficacy of PKEP is durable and compares favourably with TURP.
authors.affiliation: Department of Urology, Minimally Invasive Surgery Centre, The First Affiliated Hospital of Guangzhou Medical College, Guangzhou, Guangdong Province, China.
authors.forename: Zhigang
authors.initials: Z
authors.lastname: Zhao
authors.forename: Guohua
authors.initials: G
authors.lastname: Zeng
authors.forename: Wen
authors.initials: W
authors.lastname: Zhong
authors.forename: Zanlin
authors.initials: Z
authors.lastname: Mai
authors.forename: Shaohua
authors.initials: S
authors.lastname: Zeng
authors.forename: Xueting
authors.initials: X
authors.lastname: Tao
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D007172:Erectile Dysfunction / Q000175:diagnosis; D005500:Follow-Up Studies; D006801:Humans; D053685:Laser Therapy / Q000379:methods*; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications / Q000175:diagnosis; D011446:Prospective Studies; D011470:Prostatic Hyperplasia / Q000601:surgery*; D020728:Transurethral Resection of Prostate / Q000009:adverse effects / Q000379:methods*; D016896:Treatment Outcome; D014555:Urination Disorders / Q000175:diagnosis