Effects of 5-alpha reductase inhibitors prior to Holmium Laser Enucleation of the prostate: Does increased adenoma density result in prolonged morcellation times?
Bibliographic record
Abstract
Introduction The use of 5-alpha reductase inhibitors (5-ARIs) has been shown to improve lower urinary tract symptoms (LUTS) and decrease prostate size in men with benign prostate hyperplasia (BPH). 5-ARI therapy could increase prostate tissue density through increased collagen deposition and contraction of stromal/epithelial components. Increased tissue density could prolong morcellation times, but the effects of preoperative 5-ARI exposure on morcellation efficiency during Holmium Laser Enucleation of the Prostate (HoLEP) are not well described. Herein, we examine outcomes after HoLEP of patients on pre-operative 5-ARIs. Methods A retrospective review of patients undergoing HoLEP by an expert surgeon from Jan – Oct 2021 was performed. Student t-tests and chi-square tests were performed for continuous and categorical variables, respectively. Matched-pair analysis was performed using SPSS v28 (IBM, 2022). A p-value <0.05 was determined statistically significant. All other statistical analyses were performed using SAS v9.4 (SAS, 2019). Results A total of 322 patients underwent HoLEP during the study period and 84 patients had pre-operative 5-ARI exposure. Patients in the 5-ARI group had larger preoperative prostate size (p = 0.016). Morcellation time was longer (p=0.01), specimen weight was higher (p=0.02), and morcellation efficiency (p=0.02) was lower in the 5-ARI group. After matching, there were 67 patients in each chort (total 134) and these associations for size, morcellation time, specimen weight, and morcellation efficiency were no longer seen (p=0.8, 0.6, 0.5, and 0.7, respectively). Furthermore, no associations between 5-ARI and post-operative admissions or ED visits were noted. Conclusion In this retrospective study, preoperative use of 5-ARIs did not affect enucleation or morcellation efficiency. Thus, preoperative 5-ARI therapy does not appear to alter outcomes after HoLEP.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".