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AI InsightAdditionally, the peripheral zone volume is consistent across the entire spectrum of the prostate size.
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Özet
Objective: The primary purpose was to compare the completeness of adenomectomy and zonal anatomy of prostate on magnetic resonance imaging prostate after transurethral resection of prostate and Holmium enucleation of prostate. The secondary purpose was to investigate the relationship between preoperative total prostate volume and postoperative transition zone and peripheral zone volume after both procedures. Material and methods: A retrospective review of all patients who underwent transurethral resection of pros- tate or Holmium enucleation of prostate over 3 years (2017-2020) and had at least 1 postoperative magnetic resonance imaging prostate was performed. Volume estimations of the prostate and individual zones were per- formed, and statistical comparisons were made to evaluate morphometric changes between the 2 procedures. Results: A total of 9 patients (mean age, 71.8 years) underwent transurethral resection of prostate and 12 patients (mean age, 66.9 years) underwent Holmium enucleation of prostate. The median pre-operative prostate volume in the Holmium enucleation of prostate group was higher than the transurethral resection of prostate group (101.5 g vs. 62 g; P = .102). However, there was a significant difference in the resected tissue weight favoring Holmium enucleation of prostate over transurethral resection of prostate (P value = .004). The postoperative transition zone and peripheral zone volume as calculated by magnetic resonance imaging remained relatively constant in both procedures. The peripheral zone volume on postoperative magnetic res- onance imaging was found to be independent of transition zone volume even for very large-sized prostates. Conclusion: A well-performed transurethral resection of prostate or Holmium enucleation of prostate can nearly completely eliminate the transition zone volume, irrespective of the size of the prostate as confirmed by magnetic resonance imaging prostate. Additionally, the peripheral zone volume is consistent across the entire spectrum of the prostate size.