Is 'Omega Sign' anatomical endoscopic enucleation of the prostate technique reproducible?

Yilmaz S., Kaya E., Yalcin S., Gazel E., Aybal H. C., Acikgoz O., ...More

ANDROLOGIA, vol.53, 2021 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 53
  • Publication Date: 2021
  • Doi Number: 10.1111/and.14137
  • Journal Name: ANDROLOGIA
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, EMBASE, Gender Studies Database, MEDLINE, Veterinary Science Database
  • Keywords: benign prostate hyperplasia, anatomical endoscopic enucleation of prostate, assessment tool, HOLMIUM LASER ENUCLEATION, COMPLICATIONS, METAANALYSIS, HOLEP
  • Gazi University Affiliated: Yes


We aimed to evaluate the learning curve of the surgically standardised 'Omega Sign' anatomical endoscopic enucleation (AEEP) of the prostate surgery technique for junior surgeons. This study is a retrospective comparison of cases that underwent AEEP by a mentor surgeon and three junior surgeons who have completed their learning curve. A video-based laser enucleation of the prostate assessment tool (LEAT) composed of 8 steps of the technique was used to assess a senior surgeon and junior surgeons' surgical compatibility and consistency. The surgeon who defined Omega Sign technique was determined as group 1, and cases by three junior surgeons were identified as group 2. The end points were to assess the reproducibility and repeatability and operative post-operative outcomes of the technique. 55 patients' videos were rated by five experienced endourologists. There was no significant difference in LEAT scores between the groups among all steps. The most symmetry was found in the 1st and 3rd steps. Inter-rater consistency was also high for each step, with no statistically significant difference between the evaluators. The standardised anatomical 'Omega Sign' technique is reproducible for the junior surgeons. The operative steps can be performed with high consistency, and the functional and perioperative outcomes are comparable with the senior surgeon.