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The effects of pelvic dimensions on radical retropubic prostatectomy
Orkunt Özkaptan1, Tahir Karadeniz, Vahit Guzelburc
1Okmeydani Training and Research Hospital, Istanbul, Turkey.
Introduction:
To determine the effects of pelvic dimensions on margin status, preoperative and postoperative estimated blood loss (EBL), operative time and transfusion rate (TR) during radical retropubic prostatectomy (RRP).
Materials And Methods:
Data from 94 patients with preoperative prostate MRI were analyzed. Pelvic dimensions, including interspinous distance (ISD), bony (BFW) and soft tissue (SW) pelvic width, apical prostate depth, upper conjugate (UC), lower conjugate (LC) were measured by preoperative MRI. Indexes for pelvic dimensions (PDI), bony width (BWI) and soft-tissue width (SWI) were defined as ISD/AD, BFW/PD, and SW/AD, respectively. As indicators of surgical difficulty, TR and EBL were assessed. SPSS version 17.0 was used for statistical analyses.
Results:
Correlational analysis revealed no significant relationship between pelvic dimensions and parameters reflecting operative difficulty (p > 0.05). For EBL, there were significant indirect correlations between the BFW/AD, ISD/AD, and SW/AD indexes (p < 0.01, p < 0.01, p < 0.05; respectively). Additionally, the correlations between AD and TR (p < 0.05) and between AD and EBL (p < 0.05) were significant. Consequently, TR was significantly correlated with BFW/AD, ISD/AD and SW/AD (p < 0.01, p < 0.05, p < 0.01; respectively). Correlational analysis revealed that prostate volume (PV) was significantly correlated with EBL and TR (p < 0.01). Multivariate analyses revealed that PV was a significant predictor of TR (p = 0.06). None of the pelvic dimensions were significantly associated with recovery of urinary continence (RUC) (p > 0.05).
Conclusions:
Analyses of pelvic dimensions as significant factors influencing operative difficulty during RRP yielded mixed results. PV seems to be the strongest factor related to operative difficulty. Future studies about pelvic dimensions should be conducted.
Insights
Pelvic dimensions did not significantly impact operative difficulty during radical retropubic prostatectomy (RRP). Prostate volume (PV) was the strongest predictor of estimated blood loss (EBL) and transfusion rate (TR), not pelvic measurements.
Area of Science:
- Urology
- Surgical Oncology
- Radiology
Background:
- Radical retropubic prostatectomy (RRP) is a common procedure for prostate cancer.
- Understanding factors influencing surgical difficulty is crucial for patient outcomes.
- Pelvic dimensions may affect operative parameters like blood loss and transfusion rates.
Purpose of the Study:
- To investigate the association between preoperative pelvic dimensions and operative difficulty during RRP.
- To assess the impact of pelvic measurements on estimated blood loss (EBL), operative time, and transfusion rate (TR).
- To determine if pelvic dimensions influence the recovery of urinary continence (RUC).
Main Methods:
- Preoperative MRI data from 94 patients undergoing RRP were analyzed.
- Key pelvic dimensions (interspinous distance, pelvic width, apical prostate depth, conjugates) and derived indexes were measured.
- Statistical analyses, including correlational and multivariate analyses, were performed using SPSS.
Main Results:
- No significant correlation was found between pelvic dimensions and operative difficulty parameters (p > 0.05).
- Prostate volume (PV) showed significant correlations with EBL and TR (p < 0.01) and was a predictor of TR.
- Pelvic dimensions were not significantly associated with the recovery of urinary continence (p > 0.05).
Conclusions:
- Pelvic dimensions appear to have a limited role in influencing operative difficulty during RRP.
- Prostate volume is a more significant factor associated with operative difficulty (EBL, TR).
- Further research is warranted to fully elucidate the role of pelvic dimensions in RRP outcomes.