Is the daily use of vacuum erection device for a month before penile prosthesis implantation beneficial? a randomized controlled trial
Why this work is in the frame
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Bibliographic record
Abstract
Patient concerns about penile length after penile prosthesis (PP) implantation for erectile dysfunction (ED) have significant impact on patients and their partners. In addition, corporal fibrosis is associated with difficult PP implantation. The preoperative use of vacuum erectile devices (VED) is an uncommon physical treatment for such concerns. Therefore, the current randomized controlled study assessed two outcomes: whether pre-operative VED use for a month before surgery would significantly increase flaccid stretched penile length (SPL) on the day of surgery, and facilitate easier corporal dilatation intraoperatively. Fifty-one patients scheduled for PP implantation for ED were randomized to either intervention group (pre-operative VED use; 10-15 min/day for ≥30 days; Group A; n = 25), or control group (no intervention; Group B; n = 26). A research assistant (blinded to the treatment assignments) recorded SPL at baseline (initial consultation) and on day of surgery. The surgeons performing the PP implantation (also blinded to the treatment assignments) provided subjective assessments of the ease of corporal dilatation. Baseline patient characteristics, demographics, and comorbidities were the same in both groups. Baseline measurements (SPL-1) were 10.71 ± 1.28 and 10.87 ± 1.26 cm in Group A and Group B, respectively; and the day of surgery measurements (SPL-2) were 11.50 ± 1.33 and 11.06 ± 1.34 cm in Group A and Group B, respectively. In terms of outcomes: mean SPL increase in Group A was significantly more by a mean of 0.80 ± 0.38 cm (p < 0.05) compared to Group B; and surgeons' subjective report of surgical ease indicated smoother corporal dilatation for Group A compared to Group B. VED use (10-15 min/day during the month prior to PP implantation) was associated with significantly increased SPL on day of surgery, and facilitated easier corporal dilatation intraoperatively. Future studies should examine the long-term outcomes of penile prosthesis implantation after pre-operative use of vacuum erectile devices.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| 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 it