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Trifecta Outcomes of Screening Detected and Patients with Lower Urinary Tract Symptoms after open radical prostatectomy for Localized Prostate Cancer

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open Journal of Urology 2023年第8期13卷 282-292页

作者： Mathew Yamoah Kyei James Edward Mensah Robert Djagbletey Evans Akpali Francis Ahiaku Ali Ayamba Ben Adusei Enoch Tackie Emmanuel Bannerman-Williams George Oko Klufio Department of Surgery University of Ghana Medical School Accra Ghana Department of Anaesthesia University of Ghana Medical School Accra Ghana Department of Surgery Korle Bu Teaching Hospital Accra Ghana The Trust Hospital Accra Ghana University of Health and Allied Science Ho Ghana 37 Military Hospital Accra Ghana

Background: Many studies have reported on trifecta outcomes after radical prostatectomy. There is however paucity of studies that compares the trifecta outcome between screen detected and patients presenting with lower urinary symptoms with localized prostate cancer after radical prostatectomy. This study compares the trifecta outcomes between these two groups after an open retropubic radical prostatectomy. Methodology: This is a retrospective study, on the trifecta outcomes (urinary continence, erectile function, and cancer control) of consecutive patients that had open radical retropubic prostatectomy for localized prostate cancer by a single surgeon. Patients were grouped into screen detected and presentation with lower urinary symptoms or retention of urine. The parameters considered were the age of the patients, the total prostate specific antigen (tPSA) at presentation, the clinical T stage, the Gleason score of prostate biopsies, the risk categories using the D’Amico risk groups and the trifecta outcomes after the procedure. Results: In all, 119 patients met the criteria for inclusion. The median follow up was 63.5 months (range 12 - 156 months). Of these 40.3% of the patients were diagnosed through screening with elevated PSA while 59.7% had presented with symptoms of lower urinary tract obstruction. The mean age for the patients was 60.8 ± 6.5 years, median PSA 12.6 ng/ml (IQR 8.6 - 19.7) and median prostate weight of 50.0 (IQR 40.0 - 60 g). The urinary continence rate after the procedure was 93.3%, erection rate of 81.5%, cancer control rate of 71.4% and trifecta achieved in 57.1%. Comparing the screening and the symptomatic cases, the urinary continence rate was 91.7% vrs 94.3%;erectile function rate was 79.2% vrs 83.1%;cancer control 68.8% vrs 73.2% and trifecta achieved in 58.3% vrs 56.3%. There was no statistically significant difference between the two groups in terms of urinary continence p = 0.564, erection function p = 0.588, cancer control p = 0.5

关键词： Screening Lower Urinary Tract Symptoms open radical prostatectomy Functional Outcome Trifecta

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Effect of surgical procedures on prostate tumor gene expression profiles

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Asian Journal of Andrology 2012年第5期14卷 708-714页

作者： lie Li Zhi-Hong Zhang Chang-lun Yin Christian Pavlovich Jun Luo Robert Getzenberg Wei Zhang Department of Urology The First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029China Department of Pathology The First Affiliated Hospita Medical UniversityNanjing 210029China Department of Urology The Johns Hopkins University School of MedicineBaltimoreMD 21287USA

Current surgical treatment of prostate cancer is typically accomplished by either open radical prostatectomy （ORP） or robotic-assisted laparoscopic radical prostatectomy （RALRP）. Intra-operative procedural differences between the two surgical approaches may alter the molecular composition of resected surgical specimens, which are indispensable for molecular analysis and biomarker evaluation. The objective of this study is to investigate the effect of different surgical procedures on RNA quality and genome-wide expression signature. RNA integrity number （RIN） values were compared between total RNA samples extracted from consecutive LRP （n= 11） and ORP （n= 24） prostate specimens. Expression profiling was performed using the Agilent human whole-genome expression microarrays. Expression differences by surgicat type were analyzed by Volcano plot analysis and gene ontology analysis. Quantitative reverse transcription （RT）-PCR was used for expression validation in an independent set of LRP （n=8） and ORP （n=8） samples. The LRP procedure did not compromise RNA integrity. Differential gene expression by surgery types was limited to a small subset of genes, the number of which was smaller than that expected by chance. Unexpectedly, this small subset of differentially expressed genes was enriched for those encoding transcription factors, oxygen transporters and other previously reported surgery-induced stress-response genes, and demonstrated unidirectional reduction in LRP specimens in comparison to ORP specimens. The effect of the LRP procedure on RNA quality and genome-wide transcript levels is negligible, supporting the suitability of LRP surgical specimens for routine molecular analysis. Blunted in vivo stress response in LRP specimens, likely mediated by CO2 insufflation but not by longer ischemia time, is manifested in the reduced expression of stress-response genes in these specimens.

关键词： CO2 insufflation expression microarray laparoscopic radical prostatectomy open radical prostatectomy prostate cancer stress response

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