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Trans-rectovesical pouch urethral-sparing robotic-assisted simple prostatectomy: A case series 经直肠袋尿道保留机器人辅助单纯前列腺切除术:病例系列
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-06-06 DOI: 10.1002/bco2.389
Xinnan Chen, Kangkang Zhao, Hao Wang, Chengwei Zhang, Lin Du, Wendi Wang, Tianyi Chen, Haixiang Qin, Xuefeng Qiu, Hongqian Guo, Gutian Zhang

Objective

To detail a novel technique of robotic-assisted simple prostatectomy that makes handling the gland protruding into the bladder neck easier and can preserve the urethra and retain ejaculation function as much as possible.

Patients and methods

This is a prospective case series. Clinical data of 17 male patients who had large volume (>80 mL) benign prostatic hyperplasia (BPH) were enrolled to undergo trans-rectovesical pouch urethral-sparing robotic-assisted simple prostatectomy (usRASP). We adopted the approach through the space between the bladder neck and seminal vesicle to perform a usRASP that can avoid the detrusor skirt and fibrous matrix area of the retropubic prostate. Between the transitional zone and the peripheral zone of the large prostate, the hyperplastic prostatic gland tissue can be enucleated under direct vision while preserving the prostatic urethra and retaining the ejaculatory duct and bladder neck intact. All preoperative, perioperative and postoperative clinical data were collected, and descriptive analysis was performed.

Results

The median intravesical prostatic protrusion was 19.3 mm (8.5–32.2). The median operative time was 100 min (75–140), and the median estimated blood loss was 100 mL (10–500). The median time to catheter removal was 7 days (5–7), with a median postoperative hospital stay of 2 days (2–4). After at least 6-month follow-up, the median maximum urine flow rate and postvoid residual volume were 40.1 mL/s (12.7–52.4) and 15 mL (5–23), respectively; the median International Prostate Symptom Score and Quality of Life score were 0 (0–6.3) and 1 (0–3), respectively; and the median total prostate-specific antigen was 0.84 ng/mL (0.15–1.01). All patients successfully underwent usRASP. Fifty-eight percent of patients with normal ejaculation function before surgery can still retain normal ejaculation function.

Conclusion

We described a new approach to performing usRASP. This new method remarkably improved the voiding function, maintained antegrade ejaculation and did not increase the post-operative complications.

详细介绍一种新型的机器人辅助单纯前列腺切除术,该技术能更轻松地处理突出到膀胱颈部的腺体,并能保留尿道,尽可能保留射精功能。本文是一项前瞻性病例系列研究,收集了17例男性良性前列腺增生症(BPH)患者的临床资料,这些患者均患有大体积良性前列腺增生症(>80 mL),并接受了经直肠前列腺袋尿道保留机器人辅助单纯前列腺切除术(usRASP)。我们采用从膀胱颈和精囊之间的间隙入路的方法进行usRASP,这样可以避开前列腺后尿道的尿道裙部和纤维基质区。在大前列腺过渡区和外周区之间,可在直视下切除增生的前列腺腺体组织,同时保留前列腺尿道,并完整保留射精管和膀胱颈。收集了所有术前、围手术期和术后的临床数据,并进行了描述性分析。手术时间中位数为100分钟(75-140分钟),估计失血量中位数为100毫升(10-500毫升)。移除导管的中位时间为 7 天(5-7 天),术后住院时间中位数为 2 天(2-4 天)。经过至少 6 个月的随访,最大尿流率和排尿后残余尿量的中位数分别为 40.1 mL/s (12.7-52.4) 和 15 mL (5-23);国际前列腺症状评分和生活质量评分的中位数分别为 0 (0-6.3) 和 1 (0-3);前列腺特异性抗原总量的中位数为 0.84 ng/mL (0.15-1.01)。所有患者都成功接受了 usRASP。手术前射精功能正常的患者中,有58%仍能保持正常的射精功能。这种新方法明显改善了患者的排尿功能,保持了逆行射精,而且没有增加术后并发症。
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引用次数: 0
Value of a confirmatory re-biopsy as part of a modern risk stratified cancer surveillance programme for early prostate cancer 作为早期前列腺癌现代风险分层癌症监测计划的一部分,确诊性再活检的价值
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-06-01 DOI: 10.1002/bco2.406
Harry Gabb, Vincent J. Gnanapragasam
<p>Active Surveillance (AS) is an important management strategy for patients diagnosed with early prostate cancer. Current National Institute for Health and Care Excellence (NICE) guidelines recommend AS as first-line for patients in Cambridge Prognostic Group 1 (CPG1), as an equal option for CPG2 and an alternative for those with CPG3 who decline radical treatment (https://www.nice.org.uk/guidance/ng131). The elements of modern AS incorporate regular prostate-specific antigen (PSA) tests and MRI scans at defined timepoints. Early repeat or confirmatory biopsies, however, are not currently mandated in any modern guidance or protocol. Previous research has shown that first diagnostic biopsies can under-represent disease burden in men on AS and is improved if pre-biopsy MRI guidance is used.<span><sup>1, 2</sup></span> We have previously published that MRI pre-biopsy improves disease characterisation at diagnosis that can translate into lower rates of AS progression compared with benchmark series.<span><sup>3</sup></span> However, the value of confirmatory/early re-biopsy in addition to pre-MRI diagnostics remains unknown. This is particularly important if AS follow-up is to be individualised at its commencement based on predicted disease behaviour, progression risk and to minimise future use of protocol re-biopsies.<span><sup>4</sup></span></p><p>We have developed and implemented the Stratified Cancer Active Surveillance (STRATCANS) programme in our centre details of which we have reported and are in this webtool https://stratcans.com.<span><sup>4, 5</sup></span> In summary, STRATCANS defines three tiers of follow-up based on the risk of progression determined by diagnostic CPG, PSA density and MRI. In STRATCANS, men with the least burden of disease (STRATCANS tier-1, that is, CPG1 and a low PSA density) are managed primarily by PSA (which can be patient self-monitored) and may not need clinical review for up to 18 months. MRI repeat is based on daignostic PIRADS score and biopsies used only if there is a change. This light touch review mandates that the disease burden at the start of AS is very well characterised. Given this context the goal of this study was to assess the value of confirmatory re-biopsy in STRATCANS in confirming the disease burden at the start of AS and hence allocation to the correct STRATCANS tier.</p><p>A retrospective case notes review of men on STRATCANS who agreed to confirmatory re-biopsy (within 12 months of diagnosis) was performed as part of an ongoing service evaluation of STRATCANS in our unit (Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK; registration number: PRN11857). Men were routinely offered early re-biopsy when selecting AS management unless unfit for another procedure. Data from all men who agreed are included here, and there were no other case selections applied. The only other exclusion was therefore if a patient declined based on their own preferences. Those with significant co-morbi
主动监测(AS)是确诊为早期前列腺癌患者的一项重要治疗策略。美国国家健康与医疗优化研究所(NICE)的现行指南建议将主动监测作为剑桥预后1组(CPG1)患者的一线治疗方案,作为剑桥预后2组患者的同等选择,以及剑桥预后3组拒绝根治性治疗患者的替代方案 (https://www.nice.org.uk/guidance/ng131)。现代 AS 的要素包括在规定的时间点定期进行前列腺特异性抗原(PSA)检测和磁共振成像扫描。然而,目前任何现代指南或方案都没有强制要求进行早期重复或确诊活检。先前的研究表明,首次诊断性活检可能无法充分反映男性 AS 患者的疾病负担,而如果使用活检前核磁共振成像(MRI)指导,则可改善这一情况。1, 2 我们先前发表的文章指出,与基准系列相比,核磁共振成像活检可改善诊断时的疾病特征,从而降低 AS 的进展率。3 然而,除了核磁共振成像前诊断外,确诊性/早期再次活检的价值仍然未知。4 我们中心制定并实施了分层癌症主动监测(STRATCANS)计划,我们已报告了该计划的详细情况,并将其载于本网络工具 https://stratcans.com.4,5 总之,STRATCANS 根据诊断性 CPG、PSA 密度和 MRI 确定的疾病进展风险定义了三层随访。在 STRATCANS 中,疾病负担最轻的男性(STRATCANS 1 级,即 CPG1 和 PSA 密度较低)主要通过 PSA(可由患者自我监测)进行管理,可能在长达 18 个月的时间内不需要进行临床复查。核磁共振成像复查以 PIRADS 分值为基础,只有在发生变化时才进行活检。这种轻触式复查要求对强直性脊柱炎初发时的疾病负担有非常清楚的描述。在此背景下,本研究的目的是评估 STRATCANS 中的确证性再活检在确认 AS 开始时的疾病负担方面的价值,从而将其分配到正确的 STRATCANS 层级。我们对同意进行确证性再活检(诊断后 12 个月内)的 STRATCANS 男性患者进行了回顾性病例记录审查,这是我们单位(剑桥大学医院 NHS 基金会信托公司,英国剑桥;注册号:PRN11857)正在进行的 STRATCANS 服务评估的一部分:PRN11857)。在选择 AS 治疗方案时,除非不适合接受其他手术,否则男性患者通常都会接受早期再活检。本文纳入了所有同意的男性的数据,没有其他病例选择。因此,唯一的例外情况是患者根据自己的意愿拒绝接受手术。合并严重疾病和预期寿命有限的患者将被置于观察等待状态,不纳入 STRATCANS。2018年8月至2022年6月期间,所有男性均在全身麻醉(GATP)下采用经会阴模板法进行了重复活检。其中一次因合并疾病原因在 LA 下进行。我们记录了诊断数据,包括 PSA、前列腺体积和 PSA 密度、PIRADs 评分、核心阳性百分比、首次活检途径(LATP-经会阴或经直肠-TRUS)、分级组(GG)和 CPG 分配。结果测量包括再次活检后 GG 和 CPG 的变化(即重新分类)、癌核阳性率以及任何可能预测重新分类的因素。研究使用专有软件进行了学生 t 检验和卡方分析。表 1 列出了研究对象的人口统计学特征。PSA和PSAd的中位数分别为6.2纳克/毫升和0.14纳克/毫升2,33/40在活检前的核磁共振成像上有PIRAD 4-5病变(82.5%)。诊断时,22/40(55%)为 GG1,18 为 GG2(45%)。21 人被列为 CPG1,17 人被列为 CPG2,其中 2 人根据 GG2 和 PSA &gt; 10 被列为 CPG3。初次活检与再次活检之间的中位天数为 201 天。总体而言,15/40(37.5%)名男性在再次活检后获得了升级(CPG 重新分类),而 6/40(15%)名男性的 GG 有所下降(表 2)。在升级的男性中,5/40(12.5%)被重新分级为≥GG3,各有一例被重新分级为 GG4 或 5(5%),因此不再适合 AS。与最初的诊断性活检相比,20/40(50%)的活检核心阳性率更高(表 2)。在这 15 名提高分级的男性中,有 7/15 人选择接受治疗,而不是继续接受 AS。其余 8 名男性被转入强度更高的 STRATCANS 随访层级。 较高的 PSA、PIRADS 和 PSAd 中位数以及诊断时使用的经会阴活检方法都有升级的趋势,但均未达到统计学差异(表 S1A)。最后,我们检测了重新分类率的时间差异,以考虑诊断活检方法或人员随时间推移而发生的任何变化,这些变化可能会导致检测质量的改变,并使我们的结果出现偏差。为此,我们将队列分为 2018-2021 年中和 2021-2022 年两个时间段,以及 2018-2020 年(疫情流行前)、2021 年和 2022 年三个时间段。在这项分析中,我们发现两个时间段的升级率、CPG 重新分类或核心阳性百分比的变化没有差异(表 S1B)(p 分别为 0.74 和 0.12)。同样,我们发现将队列进一步分为三个时间段也没有明显变化(p = 0.30 和 0.49,数据未显示)。这些数据表明,尽管采用了基于图像的诊断方法,但该队列中仍有相当一部分人(37.5%)在确诊再活检后进行了 GG 升级和 CPG 重新分类。大多数重新分类的男性从 CPG1 升至 CPG2,尽管仍符合 AS 的治疗条件,但约 50%的男性决定选择治疗。我们有理由认为,在 AS 期间稍后发现这一点不会对最终结果产生影响。但是,如果一个中心要采用基于风险的随访并减少在 AS 开始时的过度监测,就必须尽可能准确地了解疾病负担。在这里,在升级的男性 AS 患者中有 8 人(占整个队列的 24%)在重新活检后接受了不同的、更密集的 STRATCANS 随访。如果晚些时候发现,这些人也会被错误地标记为疾病进展,而不是分类错误。因此,在诊断时正确进行疾病分类可能会降低许多 AS 系列中明显的高进展率和自然减员率。值得注意的是,在我们的系列研究中,25名未升级的男性患者中,只有两人(8%)在随后的强直性脊柱炎随访中病情进展并接受了治疗。关于磁共振成像诊断后进行确诊性前列腺再活检的作用,目前的数据很少,但可以从根治性前列腺切除术(RRP)的比较中获得一些佐证。Weinstein 等人的系统性综述发现,尽管在系统性活检的基础上增加了磁共振成像,但从双侧前列腺活检到 RRP 整装组织学检查,组织学分级仍有 27% 的差异。在根治性手术或放疗的情况下,这一点可能并不重要,但在 AS 中,如果在监测开始时不漏掉更具侵袭性的疾病,那么这一点的正确性就至关重要。此外,如果第一次就做对了,可能就不需要在强直性脊柱炎后期进行未来方案或触发活检。这项研究没有发现任何预测再分类的特定指标,但我们承认我们的系列研究是有限的,不足以检测出预测因素的微小差异;它还可能受到患者选择偏差的影响。总之,我们建议应将早期重复活检视为个性化、风险分层的强直性脊柱炎治疗方案的重要组成部分,并应与所有开始接受强直性脊柱炎治疗的男性患者进行讨论。如果不这样做,就有可能导致错误分类和错误的随访计划、不必要的影像学检查和活检、浪费预约时间,还有可能错失早期治疗致命前列腺癌的机会。此外,还需要在这一领域开展
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引用次数: 0
Multiparametric-magnetic resonance imaging (mp-MRI) of the prostate and Urolift: Identifying artefact size, location and clinical implications 前列腺多参数磁共振成像(mp-MRI)和尿道前列腺电切术:识别伪影大小、位置和临床影响
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-06-01 DOI: 10.1002/bco2.392
Cameron James Parkin, Rajeev Jyoti, Peter Chin

Objectives

We sought to define the degree of artefact caused by prostatic urethral lift (PUL) on multiparametric-magnetic resonance imaging (mp-MRI) to determine the location, size of artefact and if the device could potentially obscure a diagnosis of prostate cancer.

Methods

Ten patients were prospectively enrolled to undergo PUL for treatment of benign prostatic hyperplasia and follow-up imaging. A standard mp-MRI protocol using a 3.0 Tesla scanner was performed prior to and following Urolift insertion. Pre- and post-PUL images were compared to measure maximum artefact diameter around each implant in each MRI parameter. A transverse relaxation time weighted (T2) artefact reduction protocol was also evaluated. The location of each artefact was then compared to a separate database of 225 consecutive patients who underwent magnetic resonance guided prostate biopsies.

Results

Artefact occurred around the stainless steel urethral implant component only. Mean T2 artefact maximum diameter was 7.7 mm (sd = 1.71 mm), with an artefact reduction protocol reducing this to 5.4 mm (sd = 1.43). Mean dynamic-contrast-enhancement artefact was 10 mm (sd = 2.5 mm), and mean diffusion-weighted-imaging artefact was 28.2 mm (sd = 7.8 mm). All artefacts were confined to the posterior transition zone only. In the 225 consecutive patients who had undergone magnetic resonance guided prostate biopsies, there were 55 positive biopsies with prostate cancer, with 13 cases found in the transition zones and no cancer identified solely in the posterior transitional zone.

Conclusions

The stainless steel urethral component of the PUL does cause artefact, which is confined to the posterior transition zone only. PUL artefact occurs in an area of the prostate that has a very low incidence of a single focus of prostate cancer. If there is concern for prostate cancer in the posterior TZ (e.g. if every other area is clear with a high PSA), this area can undergo targeted biopsy.

目的 我们试图定义前列腺尿道提升器(PUL)在多参数磁共振成像(mp-MRI)上造成的伪影程度,以确定伪影的位置、大小以及该装置是否有可能掩盖前列腺癌的诊断。 方法 前瞻性地招募了十名患者,让他们接受 PUL 治疗良性前列腺增生并进行后续成像。在插入 Urolift 之前和之后,使用 3.0 特斯拉扫描仪执行了标准 mp-MRI 方案。对插入前和插入后的图像进行比较,以测量每个磁共振成像参数中每个植入物周围的最大伪影直径。此外,还评估了横向弛豫时间加权(T2)伪影减少方案。然后将每个伪影的位置与磁共振引导下进行前列腺活检的 225 名连续患者的单独数据库进行比较。 结果 伪影仅出现在不锈钢尿道植入组件周围。平均 T2 伪影最大直径为 7.7 毫米(sd = 1.71 毫米),伪影减少方案将其减少到 5.4 毫米(sd = 1.43)。动态对比度增强的平均伪影为 10 毫米(sd = 2.5 毫米),扩散加权成像的平均伪影为 28.2 毫米(sd = 7.8 毫米)。所有的伪影都仅限于后过渡区。在连续接受磁共振引导前列腺活检的 225 名患者中,有 55 例前列腺癌活检阳性病例,其中 13 例发现于过渡区,没有发现仅位于后过渡区的癌症。 结论 PUL 的不锈钢尿道组件确实会造成伪影,但仅局限于后过渡区。PUL 伪影发生在前列腺中单个前列腺癌灶发生率极低的区域。如果担心后过渡区会出现前列腺癌(例如,如果其他区域都很清晰,但 PSA 很高),可以对该区域进行靶向活检。
{"title":"Multiparametric-magnetic resonance imaging (mp-MRI) of the prostate and Urolift: Identifying artefact size, location and clinical implications","authors":"Cameron James Parkin,&nbsp;Rajeev Jyoti,&nbsp;Peter Chin","doi":"10.1002/bco2.392","DOIUrl":"https://doi.org/10.1002/bco2.392","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>We sought to define the degree of artefact caused by prostatic urethral lift (PUL) on multiparametric-magnetic resonance imaging (mp-MRI) to determine the location, size of artefact and if the device could potentially obscure a diagnosis of prostate cancer.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Ten patients were prospectively enrolled to undergo PUL for treatment of benign prostatic hyperplasia and follow-up imaging. A standard mp-MRI protocol using a 3.0 Tesla scanner was performed prior to and following Urolift insertion. Pre- and post-PUL images were compared to measure maximum artefact diameter around each implant in each MRI parameter. A transverse relaxation time weighted (T2) artefact reduction protocol was also evaluated. The location of each artefact was then compared to a separate database of 225 consecutive patients who underwent magnetic resonance guided prostate biopsies.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Artefact occurred around the stainless steel urethral implant component only. Mean T2 artefact maximum diameter was 7.7 mm (sd = 1.71 mm), with an artefact reduction protocol reducing this to 5.4 mm (sd = 1.43). Mean dynamic-contrast-enhancement artefact was 10 mm (sd = 2.5 mm), and mean diffusion-weighted-imaging artefact was 28.2 mm (sd = 7.8 mm). All artefacts were confined to the posterior transition zone only. In the 225 consecutive patients who had undergone magnetic resonance guided prostate biopsies, there were 55 positive biopsies with prostate cancer, with 13 cases found in the transition zones and no cancer identified solely in the posterior transitional zone.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The stainless steel urethral component of the PUL does cause artefact, which is confined to the posterior transition zone only. PUL artefact occurs in an area of the prostate that has a very low incidence of a single focus of prostate cancer. If there is concern for prostate cancer in the posterior TZ (e.g. if every other area is clear with a high PSA), this area can undergo targeted biopsy.</p>\u0000 </section>\u0000 </div>","PeriodicalId":72420,"journal":{"name":"BJUI compass","volume":"5 8","pages":"770-775"},"PeriodicalIF":1.6,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/bco2.392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141994112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Safety of urethral preservation using urethral frozen section analysis in radical cystectomy 在根治性膀胱切除术中利用尿道冰冻切片分析保留尿道的安全性
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-30 DOI: 10.1002/bco2.377
Yuto Hattori, Akihiko Nagoshi, Tasuku Fujiwara, Takanari Kambe, Yuta Mine, Hiroki Hagimoto, Yohei Abe, Daisuke Yamashita, Naofumi Tsutsumi, Noboru Shibasaki, Toshinari Yamasaki, Mutsushi Kawakita

Background

The objective of this study is to assess whether urethral preservation can be performed safely using frozen section analysis (FSA) of the urethral stump on urethral recurrence after radical cystectomy.

Methods

Between June 2012 and July 2022, we investigated consecutive male patients who underwent urethral FSA during radical cystectomy for urothelial carcinoma. For FSA-abnormal cases, urethrectomy was performed, and for FSA-normal cases, the urethra was preserved. The diagnostic accuracy of FSA was assessed in comparison with the pathological findings of the permanent sections of the same tissue. Postoperatively, computed tomography and urinary cytology were performed as routine surveillance of recurrence.

Results

Of the 77 patients included in this study, three patients with abnormal FSA underwent concurrent urethrectomy. The negative predictive value of urethral FSA was 100%. With a median postoperative follow-up of 38 months (interquartile ranges 21–71), no urethral recurrence was observed.

Conclusions

FSA may be useful in determining the indication for urethrectomy.

背景 本研究的目的是评估在根治性膀胱切除术后尿道复发时,使用尿道残端冰冻切片分析(FSA)能否安全地保留尿道。 方法 在 2012 年 6 月至 2022 年 7 月期间,我们调查了在尿道上皮癌根治性膀胱切除术中接受尿道 FSA 的连续男性患者。对于 FSA 异常病例,进行了尿道切除术;对于 FSA 正常病例,保留了尿道。通过与同一组织永久切片的病理结果进行比较,评估 FSA 诊断的准确性。术后进行计算机断层扫描和尿液细胞学检查,作为复发的常规监测。 结果 在本研究的 77 例患者中,有 3 例 FSA 异常的患者同时接受了尿道切除术。尿道 FSA 的阴性预测值为 100%。术后随访中位数为 38 个月(四分位间范围为 21-71),未观察到尿道复发。 结论 FSA 可能有助于确定尿道切除术的适应症。
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引用次数: 0
‘Feeling Hot’: Exploring the feasibility of nocturnal erection detection through penile temperature measurements 感觉热":探索通过阴茎温度测量检测夜间勃起的可行性
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-30 DOI: 10.1002/bco2.372
Hille J. Torenvlied, Evelien Trip, Wouter Olthuis, Loes I. Segerink, Rob C. M. Pelger, Jack J. H. Beck

Objectives

The observational ‘Feeling Hot’ study aims to evaluate the feasibility of employing overnight penile temperature measurements for the detection of nocturnal erections, thereby contributing to the advancement and modernization of a non-invasive diagnostic system for erectile dysfunction.

Subjects/Patients and Methods

In this proof-of-concept study, 10 healthy men aged 20–25 were recruited, following the methodology outlined in the ‘Staying Hot’ study by Torenvlied et al. Participants underwent ambulatory overnight penile temperature measurements concurrent with RigiScan recordings. Key outcome measures included baseline and peak penile temperatures during RigiScan-annotated nocturnal erections. Reference measurements of the thigh temperature were also taken to assess nocturnal temperature variations.

Results

Statistically significant penile temperature increases (p = 0.008, n = 9) were observed during nocturnal erections, with an average elevation of 1.47°C noted during the initial erections. This underscores the practical utility of penile temperature measurements in detecting erection onset. Challenges arose in accurately determining erection duration and subsequent erection onsets due to the persistence of elevated temperatures following initial erections, termed the ‘Staying Hot effect’. Reference thigh temperature measurements aided in addressing this challenge.

Conclusion

Examining overnight penile temperature alongside simultaneous RigiScan recordings has yielded valuable insights into the viability of using the temperature methodology for detecting nocturnal erections. The ‘Feeling Hot’ study findings demonstrate significant penile temperature elevation during nocturnal erections in healthy young men, highlighting the potential of integrating this measurement methodology into the design of a modernized tool for ambulatory erectile dysfunction diagnostics. Further development of an advanced sensor system to comprehensively assess erection duration and quality is essential for enhancing clinical applicability.

目的 "感觉热 "观察性研究旨在评估利用夜间阴茎温度测量检测夜间勃起的可行性,从而促进勃起功能障碍无创诊断系统的发展和现代化。 受试者/患者和方法 在这项概念验证研究中,按照 Torenvlied 等人的 "保持热度 "研究中概述的方法,招募了 10 名 20-25 岁的健康男性。主要结果测量包括 RigiScan 记录的夜间勃起时的阴茎基线温度和峰值温度。此外,还对大腿温度进行了参考测量,以评估夜间温度变化。 结果 在夜间勃起时观察到阴茎温度明显升高(p = 0.008,n = 9),最初勃起时平均升高 1.47°C。这凸显了阴茎温度测量在检测勃起开始时的实用性。由于初次勃起后温度持续升高,即 "持续高温效应",因此在准确确定勃起持续时间和随后的勃起开始时间方面存在挑战。参考大腿温度测量有助于解决这一难题。 结论 在同时进行 RigiScan 记录的同时检查夜间阴茎温度,对使用温度方法检测夜间勃起的可行性产生了宝贵的启示。感觉热 "研究结果表明,健康的年轻男性在夜间勃起时阴茎温度会明显升高,这凸显了将这种测量方法整合到非卧床勃起功能障碍诊断现代化工具设计中的潜力。进一步开发可全面评估勃起持续时间和质量的先进传感器系统对于提高临床适用性至关重要。
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引用次数: 0
Characteristics and management of post-circumcision Urethrocutaneous Fistula: a retrospective study in surgical units in Cameroon 包皮环切术后尿道皮肤瘘的特征和处理:喀麦隆外科单位的回顾性研究
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-24 DOI: 10.1002/bco2.391
Landry Oriole Mbouche, Achille Aurèle Mbassi, Junior Barthelemy Mekeme Mekeme, Dorcas Nyanit Bob, Joseph Lionel Ndjock, Emmanuel Njuma Tamufor, Faustin Mouafo Tambo

Background

Urethrocutaneous fistula (UCF) is one of the major complications of circumcision. The risk factors associated with UCF are not clear-cut but its repair remains a challenge for urological surgeons. The aim of this study was to highlight the epidemiological, and clinical features and outcomes obtained from the management of UCF in the context of a country with limited medical resources where ritual circumcision is widely practiced.

Patients and methods

From February 2010 to December 2022, 35 patients underwent surgical repair for post-circumcision UCF in two tertiary hospitals in Yaounde, Cameroon. Simple closure, Thiersch-Duplay-Snodgrass and Mathieu techniques were performed.

Results

The mean age of patients was 7.4 ± 4.1 years with a range of 2 to 21 years; the median age at circumcision was 24 months (12; 48). Most (95%) of circumcisions were performed by paramedical staff. The majority of patients (n = 26) consulted for a bifid stream, Three-quarters of fistulae were located at the corona. Small fistulae represented 74.28% (n = 26) of cases as opposed to large fistulae (25.71%). More than 70% of patients underwent a simple closure. The therapeutic results were satisfactory in 91.4% of cases (n = 32) after an average follow-up of 91.85 ± 51.92 months. There were no statistically significant differences between the patients with coronal fistula and patients with distal penile fistula concerning demographic, clinical and surgical characteristics.

Conclusion

Urethrocutaneous fistula is a major and frequent complication of circumcision mostly practiced by non-qualified personnel on children aged 24 months. The usual presentation is micturition with a bifid stream occurring on average 3 months after circumcision. Coronal fistulas are the commoner location. Simple closure, Thiersch-Duplay-Snodgrass and Mathieu technique appear to be safe with the advantages of low recurrence rate. An accurate diagnosis with a timeframe respecting the principles of fistula surgery combined with regular follow-up is mandatory for good long-term results with a low recurrence rate. Further prospective studies on the factors affecting the formation of urethrocutaneous fistula should be performed to prevent this complication of circumcision.

尿道皮肤瘘(UCF)是包皮环切术的主要并发症之一。与尿道皮肤瘘相关的风险因素尚不明确,但对泌尿外科医生来说,修复尿道皮肤瘘仍是一项挑战。这项研究的目的是,在一个医疗资源有限、广泛实施包皮环切术的国家,强调包皮环切术的流行病学、临床特征和治疗结果。从2010年2月到2022年12月,喀麦隆雅温得的两家三甲医院共为35名包皮环切术后包皮过长的患者进行了手术修复。患者的平均年龄为(7.4 ± 4.1)岁,年龄范围为 2 至 21 岁;包皮环切术的中位年龄为 24 个月(12;48)。大多数(95%)包皮环切术由医务辅助人员实施。大多数患者(n = 26)因包皮瘘而就诊,四分之三的瘘管位于阴茎冠状沟处。小瘘管占 74.28%(26 人),而大瘘管占 25.71%。超过 70% 的患者接受了简单的闭合手术。平均随访 91.85 ± 51.92 个月后,91.4% 的病例(32 例)获得了满意的治疗效果。冠状沟瘘患者与阴茎远端瘘患者在人口统计学、临床和手术特征方面没有明显差异。通常在包皮环切术后平均 3 个月出现双侧尿流。冠状瘘是较常见的位置。简单闭合、Thiersch-Duplay-Snodgrass 和 Mathieu 技术似乎很安全,而且复发率低。要想取得长期良好的效果,且复发率低,就必须在遵守瘘管手术原则的前提下进行准确诊断,并定期进行随访。为预防包皮环切术的并发症,应进一步对影响尿道经皮瘘形成的因素进行前瞻性研究。
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引用次数: 0
Cribriform pattern 4/intraductal carcinoma of the prostate and persistent prostate-specific antigen after radical prostatectomy 前列腺根治术后的楔形细胞形态 4 型/前列腺导管内癌和持续存在的前列腺特异性抗原
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-15 DOI: 10.1002/bco2.367
Takeshi Sasaki, Ikuo Kobayashi, Katsunori Uchida, Shinichiro Higashi, Satoru Masui, Kouhei Nishikawa, Toyonori Tsuzuki, Masatoshi Watanabe, Naoto Sassa, Takahiro Inoue

Objectives

The objective of this study is to identify the effect of cribriform pattern 4 carcinoma/intraductal carcinoma of the prostate (CC/IDCP) on persistent prostate-specific antigen (PSA) levels after robot-assisted radical prostatectomy (RARP) in patients with localized prostate cancer (PCa).

Patients and Methods

This retrospective study included 730 consecutive patients with localized PCa who underwent RARP at Mie University (n = 392) and Aichi Medical University (n = 338) between 2015 and 2021. Patients with clinically metastatic PCa (cN1 and cM1) and those who received neoadjuvant and/or adjuvant therapy before biochemical recurrence were excluded. We evaluated the effects of CC/IDCP on persistent PSA levels after RARP. Persistent PSA was defined as PSA level ≥0.2 ng/mL at 1 month postoperatively and consecutively thereafter. Using factors from logistic regression analysis, models were developed to predict persistent PSA levels.

Results

Approximately 6.3% (n = 46) of the patients had persistent PSA levels. Patients with biopsy CC/IDCP (bCC/IDCP) and pathological CC/IDCP (pCC/IDCP) based on RARP specimens were 11.6% (85/730) and 36.5% (267/730), respectively. Multivariate analysis of the prediction of persistent PSA levels using preoperative factors revealed that PSA density, percentage of positive cancer cores, biopsy grade group and bCC/IDCP were independent prognostic factors. Furthermore, multivariate analysis of the prediction of persistent PSA levels using postoperative factors, excluding pN1, revealed that pathological grade group, pCC/IDCP, seminal vesicle invasion and lymphovascular invasion were independent prognostic factors. In the receiver operating characteristic curve analysis for predicting persistent PSA after RARP, areas under the receiver operating characteristic curve for the model with preoperative factors, postoperative factors, including pN1, and postoperative factors, excluding pN1, were 0.827, 0.833 and 0.834, respectively.

Conclusions

bCC/IDCP predicted persistent PSA after RARP in the overall population, while pCC/IDCP predicted persistent PSA only when the pN1 population was excluded. This may be useful for predicting susceptible patients with worse outcomes.

这项回顾性研究纳入了2015年至2021年期间在三重大学(n = 392)和爱知医科大学(n = 338)接受机器人辅助前列腺癌根治术(RARP)的730例连续局部PCa患者。临床转移性 PCa(cN1 和 cM1)患者和在生化复发前接受新辅助治疗和/或辅助治疗的患者被排除在外。我们评估了CC/IDCP对RARP后持续PSA水平的影响。PSA持续水平的定义是术后1个月时PSA水平≥0.2纳克/毫升,此后连续计算。约有 6.3% 的患者(n = 46)PSA 水平持续存在。基于RARP标本的活检CC/IDCP(bCC/IDCP)和病理CC/IDCP(pCC/IDCP)患者分别占11.6%(85/730)和36.5%(267/730)。利用术前因素对持续性 PSA 水平进行预测的多变量分析表明,PSA 密度、阳性癌芯百分比、活检等级组和 bCC/IDCP 是独立的预后因素。此外,利用术后因素(不包括 pN1)预测 PSA 水平持续存在的多变量分析显示,病理分级组、pCC/IDCP、精囊侵犯和淋巴管侵犯是独立的预后因素。在预测RARP后持续PSA的接收者操作特征曲线分析中,包含术前因素、术后因素(包括pN1)和术后因素(不包括pN1)的模型的接收者操作特征曲线下面积分别为0.827、0.833和0.834。bCC/IDCP可预测总体人群RARP后持续PSA的情况,而pCC/IDCP仅在排除pN1人群后可预测持续PSA的情况。这可能有助于预测预后较差的易感患者。
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引用次数: 0
Immediate or delayed trial without catheter in acute urinary retention in males: A systematic review 男性急性尿潴留不使用导尿管的立即或延迟试验:系统综述
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-14 DOI: 10.1002/bco2.369
Veronika S. Christensen, Marius Skow, Signe A. Flottorp, Hilde Strømme, Ibrahimu Mdala, Odd Martin Vallersnes

Objective

To compare the success of establishing spontaneous micturition following immediate trial without catheter (TWOC) to delayed TWOC in males catheterized for acute urinary retention.

Materials and methods

In this systematic review, we included studies reporting success rates of immediate TWOC or delayed TWOC (≤30 days) among males ≥18 years of age catheterized for acute urinary retention. We excluded studies on suprapubic catheterization, postoperative/perioperative catheterization and urinary retention related to trauma. We searched the following databases: MEDLINE, Embase, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, Open Grey and Clinicaltrials.gov. The search was concluded on 30 November 2022. There were no restrictions on language or publication date. Risk of bias was assessed using the ROB 2.0 and ROBINS-I tools. We did random-effects restricted maximum likelihood model meta-analyses. Certainty of evidence was assessed using GRADE.

Results

We included 61 studies. In two randomized controlled trials (RCTs), both with some concerns for risk of bias, including in total 174 participants, the relative success rate was 1.22 (95% CI 0.84–1.76) favouring delayed TWOC. In two comparative cohort studies, both with serious risk of bias, including 642 participants, the relative success rate was 1.18 (0.94–1.47) favouring delayed TWOC. One study was excluded from this meta-analysis because of critically low quality. Four studies reporting success rates for cohorts with immediate TWOC, all with serious risk of bias, including 409 participants, had an overall success rate of 47% (29–66). Fifty-two studies reporting success rates for cohorts with delayed TWOC, all with serious risk of bias, including 12 489 participants, had an overall success rate of 53% (49–56). The certainty of the evidence was considered low for the RCTs and very low for the rest.

Conclusion

There was a limited number of appropriately designed studies addressing the research question directly. The evidence favours neither approach.

在这项系统性综述中,我们纳入了一些研究,这些研究报告了因急性尿潴留而接受导尿术的年龄≥18 岁的男性中,即刻无导尿管试验(TWOC)和延迟 TWOC(≤30 天)的成功率。我们排除了有关耻骨上导尿、术后/围手术期导尿以及与创伤相关的尿潴留的研究。我们检索了以下数据库:MEDLINE、Embase、Cochrane 系统综述数据库、Cochrane 对照试验中央登记册、Open Grey 和 Clinicaltrials.gov。检索于 2022 年 11 月 30 日结束。语言或出版日期不受限制。使用 ROB 2.0 和 ROBINS-I 工具对偏倚风险进行了评估。我们进行了随机效应限制最大似然模型荟萃分析。我们纳入了 61 项研究。在两项随机对照试验(RCT)中,延迟 TWOC 的相对成功率为 1.22(95% CI 0.84-1.76),两项试验均存在一定的偏倚风险,共纳入 174 名参与者。两项队列比较研究均存在严重的偏倚风险,共纳入 642 名参与者,结果显示延迟 TWOC 的相对成功率为 1.18(0.94-1.47)。一项研究因质量极低而被排除在荟萃分析之外。四项研究报告了队列中立即 TWOC 的成功率,这些研究都存在严重的偏倚风险,包括 409 名参与者,总体成功率为 47% (29-66)。52 项研究报告了同组延迟 TWOC 的成功率,所有研究都存在严重的偏倚风险,包括 12 489 名参与者,总成功率为 53% (49-56)。直接针对研究问题的设计合理的研究数量有限。两种方法都没有证据支持。
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引用次数: 0
Evaluating a deep learning AI algorithm for detecting residual prostate cancer on MRI after focal therapy 评估用于检测病灶治疗后磁共振成像上残留前列腺癌的深度学习人工智能算法
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-12 DOI: 10.1002/bco2.373
David G. Gelikman, Stephanie A. Harmon, Alexander P. Kenigsberg, Yan Mee Law, Enis C. Yilmaz, Maria J. Merino, Bradford J. Wood, Peter L. Choyke, Peter A. Pinto, Baris Turkbey
<p>Advancements in artificial intelligence (AI) have shown promise in standardizing medical imaging evaluations, particularly in detecting prostate cancer (PCa) on MRI.<span><sup>1</sup></span> Though MRI-based AI algorithms have been developed to detect PCa in untreated glands,<span><sup>2, 3</sup></span> little research exists on the efficacy of such models after prostate ablation. While focal therapy (FT) targets and destroys localized PCa, it usually distorts prostate anatomy, making it difficult to evaluate on MRI.<span><sup>4</sup></span> Our study investigates the efficacy of a biparametric MRI (bpMRI)-based deep learning algorithm for post-FT PCa identification.</p><p>This retrospective cohort study utilized post-FT prostate bpMRIs from an IRB-approved clinical trial (NCT03354416). MRIs were evaluated with a previously developed AI model, a 3D U-Net-based deep neural network that can detect suspicious lesions on untreated prostate bpMRIs based on T2-weighted images, apparent diffusion coefficient maps and high b-value diffusion-weighted images (Figure 1A–C).<span><sup>5</sup></span> This algorithm was originally trained using a diverse MRI dataset obtained from treatment-naïve patients.</p><p>AI output consisted of PCa-suspicious lesion prediction maps overlayed on T2-weighted MRI (Figure 1D). Predictions were compared to MRI/transrectal ultrasound fusion-guided and systematic prostate biopsies. A patient-level analysis was performed where if at least one location containing Gleason Grade ≥1 disease was detected by the AI, this was a true positive. If an AI prediction was made in an area that turned out to be benign on biopsy, this was a false positive, even if biopsy revealed malignancy in a different region of the prostate. Patients with biopsy-proven PCa lesions that were not predicted by AI were false negatives. If AI made no predictions in a patient with a fully benign prostate biopsy, this was a true negative. AI performance metrics included sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV) and overall accuracy.</p><p>Of the 40 included patients, the median time to post-FT MRI was 2.5 years, and 25 patients had PCa at biopsy. AI made 33 unique lesion predictions across 24 patients. Of these, 16 patients (67%) had one lesion prediction, 7 patients (29%) had two lesion predictions and 1 patient (4%) had three lesion predictions. Across all AI predictions in this cohort, 9 patients (22.5%) had true positives, 15 patients (37.5%) had false positives, 10 patients (25%) had false negatives and 6 patients (15%) had true negatives. The AI's overall sensitivity was 47.4% with a specificity of 28.6%. The PPV and NPV were both 37.5%. Overall, the AI achieved an accuracy of 37.5%. The performance characteristics of this model are listed in Table 1.</p><p>Our AI reached a moderate level of sensitivity. Despite low specificity and overall accuracy, this is a noteworthy finding, as this AI algorithm was tra
人工智能(AI)的发展为医学影像评估的标准化带来了希望,尤其是在核磁共振成像(MRI)上检测前列腺癌(PCa)方面。1 虽然基于核磁共振成像的人工智能算法已被开发用于检测未治疗腺体中的 PCa,2, 3 但关于此类模型在前列腺消融术后的疗效研究却很少。4 我们的研究调查了基于双参数磁共振成像(bpMRI)的深度学习算法对前列腺消融术后 PCa 识别的功效。这项回顾性队列研究利用了一项经 IRB 批准的临床试验(NCT03354416)中的前列腺消融术后 bpMRI。该模型是基于三维 U-Net 的深度神经网络,可根据 T2 加权图像、表观弥散系数图和高 b 值弥散加权图像检测未经治疗的前列腺 bpMRI 上的可疑病灶(图 1A-C)。预测结果与 MRI/经直肠超声融合引导和系统性前列腺活检结果进行了比较。如果人工智能检测到至少一个位置包含格里森分级≥1的疾病,则该位置为真阳性。如果人工智能预测的部位在活检中被证实为良性,则为假阳性,即使活检显示前列腺的另一区域存在恶性肿瘤。活检证实为 PCa 病变但人工智能未预测到的患者为假阴性。如果人工智能没有对前列腺活检完全良性的患者进行预测,则为真阴性。人工智能的性能指标包括灵敏度、特异性、阳性预测值(PPV)、阴性预测值(NPV)和总体准确性。在纳入的 40 名患者中,FT MRI 后的中位时间为 2.5 年,25 名患者在活检时患有 PCa。人工智能对 24 名患者进行了 33 次独特的病变预测。其中,16 名患者(67%)有一个病灶预测,7 名患者(29%)有两个病灶预测,1 名患者(4%)有三个病灶预测。在该队列的所有人工智能预测中,9 名患者(22.5%)为真阳性,15 名患者(37.5%)为假阳性,10 名患者(25%)为假阴性,6 名患者(15%)为真阴性。人工智能的总体灵敏度为 47.4%,特异性为 28.6%。PPV 和 NPV 均为 37.5%。总体而言,人工智能的准确率达到了 37.5%。表 1 列出了该模型的性能特征。尽管特异性和总体准确性较低,但这是一个值得注意的发现,因为这种人工智能算法是在未经治疗的腺体上而不是在 FT 后图像上训练出来的。47% 的灵敏度突显了该算法的潜力和未来的有效性,如果能对 FT 后图像进行特定训练的话。6、7 此外,FT 后 MRI 分析通常依赖于动态对比增强(DCE)成像,而不是典型的 bpMRI 序列。8 然而,我们的人工智能是基于 bpMRI 的,并不包括 DCE MRI,因此对 DCE 数据的额外训练可能需要对人工智能模型进行全面改造。除了依赖于 bpMRI,另一个局限性是使用有针对性的系统性前列腺活检作为基本真相。虽然全腺体标本可以证明人工智能检测到的病变是真阳性还是假阳性,但这可能会导致我们的研究人群出现选择偏差,因为并非所有患者都接受了手术。此外,靶向活检是根据原始的前瞻性核磁共振成像读数而非人工智能预测结果进行的。尽管 PI-FAB 系统显示了前景,但放射科医生对 FT 后图像进行分析的标准系统仍有待建立。8 未来的人工智能算法将值得与此类标准化解读系统进行比较。总之,鉴于其训练数据的局限性,该模型在 FT 后设置中的表现值得关注,其表现可能已经与放射科医生的解读相似,但仍需进一步研究。这项研究为提高用于前列腺癌病灶检测的通用人工智能模型的性能提供了动力,同时也是了解人工智能在前列腺癌术后患者PCa检测中的潜在作用的第一步。
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引用次数: 0
A review of the current treatment methods for retroperitoneal fibrosis with obstructive uropathy 腹膜后纤维化伴梗阻性尿病的现有治疗方法综述
IF 1.6 Q3 UROLOGY & NEPHROLOGY Pub Date : 2024-05-12 DOI: 10.1002/bco2.371
Charles Carey, Gerard Gurumurthy, Richard Napier-Hemy, Bachar Zelhof

Introduction and aims

Retroperitoneal fibrosis (RPF) is a fibroinflammatory disease in which patients may suffer obstructive uropathy (OU). The optimum treatment strategy for RPF with secondary OU is currently unclear, and the aim of this literature review is to assess the methods used to treat this patient cohort.

Methods

Medline, Embase, Cinahl, the Cochrane Library and PubMed were systematically searched to find studies assessing treatment outcomes in this patient cohort. After reviewing the studies' titles, abstracts and full texts, 12 were found that matched our search aims. Data from these publications were analysed and reported.

Results

The demographic and symptomatic features of patients across the 12 studies were representative of the general RPF population. No randomised control trials (RCTs) were found, and just one study formally compared outcomes between patients who underwent different treatment strategies. Many of the studies concluded that using medical and surgical methods in combination led to positive outcomes; whereas, others found positive outcomes following a variety of regimens. Many studies also highlighted, however, that significant minorities required further treatment after initial therapy. Conclusions regarding optimum treatment methods were limited as most publications did not formally compare outcomes following different strategies and had an observational study design.

Conclusion

Although positive outcomes were commonly seen following medical, surgical and a combination of treatments, the literature currently lacks research formally comparing outcomes after assigning specific treatment protocols to groups of RPF patients. More research is therefore required to determine how to best manage RPF leading to secondary OU.

腹膜后纤维化(RPF)是一种纤维炎性疾病,患者可能会出现梗阻性尿病(OU)。我们系统地检索了 Medline、Embase、Cinahl、Cochrane 图书馆和 PubMed,以找到评估该患者群治疗效果的研究。在对研究的标题、摘要和全文进行审查后,发现有 12 项研究符合我们的搜索目的。我们对这些出版物中的数据进行了分析和报告。这 12 项研究中患者的人口统计学特征和症状特征在一般 RPF 患者中具有代表性。没有发现随机对照试验(RCT),仅有一项研究对接受不同治疗策略的患者的疗效进行了正式比较。许多研究得出结论认为,联合使用药物和手术方法可取得积极疗效;而其他研究则发现,采用多种治疗方案均可取得积极疗效。不过,许多研究也强调,相当一部分患者在接受初步治疗后还需要进一步治疗。关于最佳治疗方法的结论是有限的,因为大多数出版物都没有正式比较不同策略的治疗效果,而且采用的是观察性研究设计。虽然药物治疗、手术治疗和综合治疗通常都能取得积极的疗效,但目前还缺乏正式比较将特定治疗方案分配给各组 RPF 患者后的疗效的研究。因此,需要进行更多的研究,以确定如何对导致二次 OU 的 RPF 进行最佳管理。
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BJUI compass
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