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383 results for “Radical prostatectomy”
Dataset related to article "External Validation and Comparison of Two Nomograms Predicting the Probability of Lymph Node Involvement in Patients subjected to Robot-Assisted Radical Prostatectomy and Concomitant Lymph Node Dissection: A Single Tertiary Center Experience in the MRI-Era "
<p>This record contains raw data related to article “External Validation and Comparison of Two Nomograms Predicting the Probability of Lymph Node Involvement in Patients subjected to Robot-Assisted Radical Prostatectomy and Concomitant Lymph Node Dissection: A Single Tertiary Center Experience in the MRI-Era"</p> <p>Abstract</p> <p><strong>Introduction: </strong> To externally validate and directly compare the performance of the Briganti 2012 and Briganti 2019 nomograms as predictors of lymph node invasion (LNI) in a cohort of patients treated with robot-assisted radical prostatectomy (RARP) and extended pelvic lymph node dissection (ePLND).</p> <p><strong>Materials and methods: </strong> After the exclusion of patients with incomplete biopsy, imaging, or clinical data, 752 patients who underwent RARP and ePLND between December 2014 to August 2021 at our center, were included. Among these patients, 327 (43.5%) had undergone multi-parametric MRI (mpMRI) and mpMRI-targeted biopsy. The preoperative risk of LNI was calculated for all patients using the Briganti 2012 nomogram, while the Briganti 2019 nomogram was used only in patients who had performed mpMRI with the combination of targeted and systematic biopsy. The performances of Briganti 2012 and 2019 models were evaluated using the area under the receiver-operating characteristics curve analysis, calibrations plot, and decision curve analysis.</p> <p><strong>Results: </strong> A median of 13 (IQR 9-18) nodes per patient was removed, and 78 (10.4%) patients had LNI at final pathology. The area under the curves (AUCs) for Briganti 2012 and 2019 were 0.84 and 0.82, respectively. The calibration plots showed a good correlation between the predicted probabilities and the observed proportion of LNI for both models, with a slight tendency to underestimation. The decision curve analysis (DCA) of the two models was similar, with a slightly higher net benefit for Briganti 2012 nomogram. In patients receiving both systematic- and targeted-biopsy, the Briganti 2012 accuracy was 0.85, and no significant difference was found between the AUCs of 2012 and 2019 nomograms (<em>p</em> = 0.296). In the sub-cohort of 518 (68.9%) intermediate-risk PCa patients, the Briganti 2012 nomogram outperforms the 2019 model in terms of accuracy (0.82 vs. 0.77), calibration curve, and net benefit at DCA.</p> <p><strong>Conclusion: </strong> The direct comparison of the two nomograms showed that the most updated nomogram, which included MRI and MRI-targeted biopsy data, was not significantly more accurate than the 2012 model in the prediction of LNI, suggesting a negligible role of mpMRI in the current population.</p>
Dataset related to article "p2PSA for predicting biochemical recurrence of prostate cancer earlier than total prostate-specific antigen after radical prostatectomy: an observational prospective cohort study."
<p>BACKGROUND:</p> <p>There is an unmet clinical need for more biochemical specific tests that may detect clinically significant recurrent PCa at an early stage after radical prostatectomy (RP). Our purpose is to test the hypothesis that p2PSA (Index test) detects prostate cancer relapse (BCR) earlier than the current Reference Standard Test (total prostate-specific antigen [tPSA]) in patients who underwent RP for localized PCa.</p> <p>METHODS:</p> <p>This is an observational, prospective, cohort, follow-up study in patients subjected to RALP (robotic assisted laparoscopic radical prostatectomy) for clinically localized PCa from January 2013 to July 2013 at a high-volume Institution (450 average RP/year). A blood sample, for tPSA and p2PSA, was prospectively drawn after 3, 6, and 12 months and then every 6 months during the following two years. The primary outcome is to determine whether or not kinetics in rising of p2PSA significantly anticipates the tPSA kinetics. Exploratory data analysis was used to identify relationship between different variables.</p> <p>RESULTS:</p> <p>Over 134 patients 20 BCRs were detected according to tPSA cut-off. Five patients showed a contemporary increase of tPSA and p2PSA, 11 presented a p2PSA increase earlier than tPSA increase (13.9 months ±9.7). In four patients, the increase of PSA was not associated with a p2PSA>0.8 pg/mL. The correlation between tPSA and p2PSA according to Sperman's rho coefficient was statistically significant at 3, 6, 18 and 30 months: 0.416 (P<0.01), 0.255 (P<0.01), 0.359 (P<0.01) and 0.413 (P<0.01) respectively. When subjects were stratified according to stage/grade and margins (positive vs. negative), patients with higher stage and positive surgical margins could be considered the target categories. The low rate of observed BCR and high rate of p2PSA false positive are the main limitations.</p> <p>CONCLUSIONS:</p> <p>The current findings showed that p2PSA might be more sensitive than tPSA in detecting earlier BCR within 3-year follow-up. Further studies with a longer follow-up and larger population remain mandatory before considering p2PSA for clinical decision-making.</p>
Hypermethylation of GABRE~miR-452~miR-224 in prostate cancer predicts biochemical recurrence after radical prostatectomy
GEO Series GSE51053. Homo sapiens. 15 samples. Type: Expression profiling by array.
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