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Training the next generation of quality improvement champions in pediatric urology: A virtual program co-sponsored by the journal of pediatric urology 培训下一代小儿泌尿外科质量改进卫士:由《小儿泌尿外科杂志》共同赞助的虚拟项目
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.04.024
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引用次数: 0
Assessing the effects of bladder decellularization protocols on extracellular matrix (ECM) structure, mechanics, and biology 评估膀胱脱细胞方案对细胞外基质 (ECM) 结构、力学和生物学的影响
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.06.002

Introduction

Acellular matrices have historically been applied as biologic scaffolds in surgery, wound care, and tissue engineering, albeit with inconsistent outcomes. One aspect that varies widely between products is the selection of decellularization protocol, yet few studies assess comparative effectiveness of these protocols in preserving mechanics, and protein content. This study characterizes bladder acellular matrix (BAM) using two different detergent and enzymatic protocols, evaluating effects on nuclei and DNA removal (≥90%), structure, tensile properties, and maintenance of extracellular matrix proteins.

Methods

Porcine bladders were decellularized with 0.5% Sodium Dodecyl Sulfate (SDS) or 0.25% Trypsin-hypotonic-Triton X-100 hypertonic (TT)-based agitation protocols, followed by DNase/RNase agents. Characterization of BAM included decellularization efficacy (DAPI, DNA quantification), structure (histology and scanning electron microscopy), tensile testing (Instron 345C-1 mechanical tester), and protein presence and diversity (mass spectrometry). SDS and TT data was directly compared to the same native bladder using two-tailed paired t-tests. Native, TT, and SDS cohorts for tensile testing were compared using one-way ANOVA; Tukey's post-hoc tests for among group differences.

Results

Effective nuclei removal was achieved by SDS- and TT-based protocols. However, target DNA removal was achieved with SDS but not TT. SDS more effectively maintained qualitative tissue architecture compared to TT. The tensile modulus of the TT cohort increased, and stretchability decreased after decellularization in both SDS and TT. UTS was unaffected by either protocol. Higher overall diversity and quantity of core matrisome and matrisome-associated proteins was maintained in the SDS vs TT cohort post-decellularization.

Conclusion

The results indicated that detergent selection affects multiple aspects of the resultant BAM biologic product. In the selected protocols, SDS was superior to TT efficacy, and maintenance of gross tissue architecture as well as maintenance of ECM proteins. Decellularization increased scaffold resistance to deformation in both cohorts. Future studies applying biologic scaffolds must consider the processing method and agents used to ensure that materials selected are optimized for characteristics that will facilitate effective translational use.
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Summary figure.

导言细胞基质作为生物支架历来被应用于外科手术、伤口护理和组织工程中,尽管结果并不一致。不同产品之间差异很大的一个方面是脱细胞方案的选择,但很少有研究评估这些方案在保持力学和蛋白质含量方面的比较效果。本研究采用两种不同的洗涤剂和酶处理方案对膀胱无细胞基质(BAM)进行了表征,评估了对细胞核和 DNA 去除率(≥90%)、结构、拉伸性能和细胞外基质蛋白维持的影响。方法 使用 0.5% 十二烷基硫酸钠(SDS)或 0.25% 胰蛋白酶-高渗-Triton X-100 高渗(TT)搅拌方案对猪膀胱进行脱细胞处理,然后使用 DNase/RNase 药剂。BAM 的表征包括脱细胞功效(DAPI、DNA 定量)、结构(组织学和扫描电子显微镜)、拉伸测试(Instron 345C-1 机械测试仪)以及蛋白质的存在和多样性(质谱)。使用双尾配对 t 检验法将 SDS 和 TT 数据直接与相同的原生膀胱进行比较。使用单因素方差分析比较原生膀胱、TT膀胱和SDS膀胱的拉伸测试结果;对组间差异进行Tukey事后检验。但是,SDS 能去除目标 DNA,而 TT 则不能。与 TT 相比,SDS 能更有效地保持组织结构的质量。在 SDS 和 TT 脱细胞后,TT 组群的拉伸模量增加,伸展性降低。两种方案均未影响 UTS。SDS 与 TT 组群在脱细胞后保持了较高的核心基质组和基质组相关蛋白的总体多样性和数量。在选定的方案中,SDS 的功效优于 TT,并能维持组织的总体结构和 ECM 蛋白质。脱细胞增加了支架在两个组群中的抗变形能力。未来应用生物支架的研究必须考虑所用的加工方法和制剂,以确保所选材料的特性得到优化,从而促进有效的转化应用:下载高清图片 (157KB)Download:下载全尺寸图片摘要图。
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引用次数: 0
Response to the letter to the Editor “Which hormone, which plate, which reduction?” 回复致编辑的信 JPUROL-D-2400398 re JPUROL-D-24-00076
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.07.014
Michael Sennert, Christina Perske, Mohammed Fawzy, Johannes Wirmer, Ahmed T. Hadidi
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引用次数: 0
Technical nuances of the concealed penis repair 阴茎隐蔽修复术的技术细节
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.07.009
Mark R. Zaontz , Christopher J. Long
Circumcision is commonly performed but anatomic variants occur and can affect outcomes if not addressed properly. The combination of concealed penis and penoscrotal webbing is fairly common and presents across a spectrum of severity. If not repaired, this can result in a buried penis that can cause penile adhesions, wound healing concerns, and make the penis appear shorter secondary to a retracted position. We present our technique that is reproducible and highly successful in addressing both of these concerns. The paraphimotic band approach is performed more commonly and is able to reliably correct webbing and concealment without an incision at the penoscrotal junction. When more severe defect is present, a Y shaped incision is made at the penoscrotal junction to mobilize skin flaps to correct the deficit. In our cohort of 885 patients, 736 were corrected using the paraphimotic band technique while 149 underwent a complex scrotoplasty. None of the patients required a secondary surgery for complications.
包皮环切术是常见的手术,但也会出现解剖变异,如果处理不当,会影响手术效果。隐匿阴茎和阴茎包皮蹼的组合相当常见,严重程度不一。如果不进行修复,可能会导致阴茎被埋藏,造成阴茎粘连、伤口愈合问题,并使阴茎因位置后缩而显得较短。我们介绍的这项技术具有可重复性,在解决这两个问题方面非常成功。阴茎系带旁方法更常用,无需在阴茎阴囊交界处切开,就能可靠地矫正蹼状和隐匿。当出现更严重的缺损时,可在阴茎睾丸交界处做一个 Y 形切口,调动皮瓣来矫正缺损。在我们的 885 例患者中,736 例采用了阴囊旁带技术进行矫正,149 例接受了复杂的阴囊成形术。没有一名患者因并发症而需要二次手术。
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引用次数: 0
Douglas A. Canning 39th recipient of the American Academy of Pediatrics Medal in Urology: Personal Reflections 道格拉斯-坎宁(Douglas A. Canning)第 39 届美国儿科学会泌尿外科奖章获得者:个人感想
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.03.015
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引用次数: 0
Long-term outcome of gender assignment in individuals with 46, XY DSD assigned female sex in multicultural society 在多元文化社会中,46, XY DSD 患者被指定为女性后的长期性别分配结果
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.03.033

Background

The decision regarding sex rearing in patients with Disorders of Sex Development (DSD) is heavily connected to the shared decision-making model within multidisciplinary team. Some of these patients might develop gender dysphoria, when they become adults. We have aimed to evaluate the long-term outcomes of patients with XY DSD who underwent female gender assignment at our center.

Methods

We have conducted a retrospective study of all 46, XY DSD patients who underwent female assignment in our institution over the last 30 years.

Results

we have found 25 46, XY patients who were raised as a female after birth. After excluding the Androgen insensitivity syndrome (AIS) patients we have identified 15 patients who have matched study criteria. The decision on gender rearing was made by the parents in 11(74%) and by the surgical team 2(13%) during hernia repair/inguinal exploration. In 2(13%) cases, the patients opted to continue identifying as women after learning about the pathology during adolescence. Nine (60%) out of 15 patients (age17.9 ± 4.7 years (mean ± SD)) agreed to answer questionnaires regarding sexual function and satisfaction from gender assignment. Mean follow up was 11.1 ± 8.2 years (mean ± SD). only one participant consented to respond to a questionnaire regarding sexual intercourse (homosexual). The overall FSFI score was 24 which included the scores 4, 4, 3, 4, 3, 2 in the categories desire, arousal, lubrication, orgasm, satisfaction, and pain respectively. Two patients regretted the decision of female gender assignment. The first with 5α-reductase deficiency, he made the decision for assignment himself as an adult and the other (3β-hydroxysteroid dehydrogenase) who underwent gonadectomy during inguinal exploration as a child. The rest of the patients were satisfied with the choice of gender, 2 need psychological support on the daily basis. In the study group, relationship and cohabitation were significantly later in life compared to the general population.

Conclusions

Despite the sensitivity of the subject and cultural differences, most patients (78%) were satisfied with the decision to undergo female gender assignment. Over the years, patients require meticulous follow-up in order to consider additional interventions, and mental support if it is necessary. The two cases of later regret highlight the importance of proper education of patients, their families and medical providers upon decision on gender assignment.
性发育障碍(DSD)患者的性别抚养决定与多学科团队的共同决策模式密切相关。其中一些患者成年后可能会出现性别焦虑症。我们的目标是评估在本中心接受女性性别鉴定的 XY DSD 患者的长期治疗效果。我们对过去 30 年中在本机构接受女性性别分配的所有 46 XY DSD 患者进行了一项回顾性研究,发现有 25 名 46 XY 患者在出生后被当作女性抚养。在排除雄激素不敏感综合征(AIS)患者后,我们发现有 15 名患者符合研究标准。其中 11 例(74%)由父母决定性别抚养,2 例(13%)在疝修补术/腹股沟探查术中由手术团队决定性别抚养。在 2 个(13%)病例中,患者在青春期了解病理后,选择继续以女性身份自居。15 名患者中有 9 名(60%)(年龄为 17.9 ± 4.7 岁(平均 ± SD))同意回答有关性功能和性别分配满意度的问卷。平均随访时间为 11.1 ± 8.2 年(平均 ± SD)。只有一名参与者同意回答有关性交(同性恋)的问卷。FSFI 总分为 24 分,其中欲望、唤起、润滑、高潮、满意度和疼痛分别为 4、4、3、4、3、2 分。有两名患者对性别分配决定表示后悔。第一位患者患有 5α 还原酶缺乏症,他在成年后自行决定了性别分配;另一位患者(3β-羟基类固醇脱氢酶)在孩童时期的腹股沟探查中接受了性腺切除术。其余患者对性别选择感到满意,2 人需要日常心理支持。与普通人相比,研究组的恋爱和同居时间明显较晚。尽管这个问题很敏感,而且存在文化差异,但大多数患者(78%)对接受女性性别鉴定的决定表示满意。多年来,患者需要进行细致的随访,以便考虑额外的干预措施,并在必要时获得精神支持。这两例后来后悔的病例突出表明,在决定进行性别鉴定时,对患者、其家人和医疗服务提供者进行适当的教育非常重要。
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引用次数: 0
Commentary to contemporary disparities in progression to orchiopexy for cryptorchidism as reported in the Pediatric Health Information System (PHIS) database 评述儿科健康信息系统(PHIS)数据库中报告的隐睾症患者在进行睾丸切除术时存在的当代差异。
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.04.025
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引用次数: 0
Profiling the dynamic pediatric urobiome: Missing links and future directions! 剖析动态儿科尿生物群:缺失环节与未来方向
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.06.029
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引用次数: 0
Application of intraoperative structured light scanning to enable post-operative evaluation of digital and 3D-printed penile models 应用术中结构光扫描对数字和 3D 打印阴茎模型进行术后评估
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.05.011
<div><h3>Background</h3><div>Penile phenotype in hypospadias is currently assessed visually or manually (e.g., ruler, goniometer) for clinical, education, and research applications. However, these methods lack precision and accuracy across raters and cannot be reevaluated retrospectively following a surgical repair. The project aim was to evaluate the precision and reliability of penile dimensions obtained from digital and three dimensional (3D) printed models created from intraoperative (OR) structured light scans (SLS) during primary pediatric penile procedures.</div></div><div><h3>Methods</h3><div>Boys ages 1 month to 6 years underwent first- or single-stage penile surgery at a single institution were enrolled in this prospective study (IRB #20–000143). For each patient, immediately following placement of a stay suture under consistent manual tension, intra-operative dimension measurements with a ruler were obtained. A digital 3D model was created prior to penile repositioning using an Artec Space Spider scanner and Artec Studio 13 software. Following the case, two different raters completed 10 digital measurements of each generated model in Autodesk Fusion 360. These digital models were subsequently 3D printed and two different raters completed 10 manual dimension measurements of each 3D printed model using a ruler. A one-way random effects intraclass correlation coefficient (ICC) evaluated measures of agreement between and within raters, respectively. Analyses were conducted in R version 4.2.</div></div><div><h3>Results</h3><div>Six scans were obtained (hypospadias: 4, circumcision: 2). Intra-rater assessments showed excellent precision across repeated digital measurements; manual measurements of 3D printed models had excellent reliability for glans width and penile length but poor to good reliability for glans height. Inter-rater reliability was good to excellent for glans width (0.77–0.95) and good for penile length (0.71–0.88). However, there was poor inter-rater reliability for glans height (0–0.14). Following training regarding glans height location, there was an improvement in precision and repeatability of manual and digital measurements.</div></div><div><h3>Conclusion</h3><div>Digital measurement of OR-derived 3D models resulted in excellent repeatability for each rater and improved between-rater reliability over manual measurement of 3D printed models alone, ensuring that images can be compared by various surgeons both now and in the future. SLS is promising as a novel modality to digitally generate 3D models, thereby informing phenotypic analysis for research and education. Further development of digital measurement methods to ensure consistency between raters for quantitative assessment of additional parameters and assessment of the technology within the pre-operative environment for surgical planning is planned.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (285KB)</span></span></span></li><l
背景尿道下裂的阴茎表型目前是通过肉眼或人工(如直尺、量角器)进行评估,用于临床、教育和研究。然而,这些方法在不同评分者之间缺乏精确性和准确性,而且无法在手术修复后进行回顾性评估。该项目的目的是评估在初级儿科阴茎手术中,通过术中(OR)结构光扫描(SLS)创建的数字模型和三维(3D)打印模型获得的阴茎尺寸的精确度和可靠性。方法年龄在 1 个月到 6 岁之间的男孩在一家机构接受了一期或单期阴茎手术,这些男孩被纳入这项前瞻性研究(IRB #20-000143)。每位患者在人工持续拉力下进行留置缝合后,立即用尺子测量术中尺寸。在阴茎复位前,使用 Artec Space Spider 扫描仪和 Artec Studio 13 软件创建数字 3D 模型。病例结束后,两名不同的测量人员在 Autodesk Fusion 360 中对每个生成的模型完成了 10 次数字测量。这些数字模型随后被三维打印出来,两名不同的评定者使用尺子对每个三维打印模型完成了 10 次人工尺寸测量。单向随机效应类内相关系数(ICC)分别评估了评分者之间和评分者内部的一致性。结果共获得六次扫描(尿道下裂:4 次,包皮环切:2 次)。评分者内部评估显示,重复数字测量的精确度极高;3D打印模型的手动测量在龟头宽度和阴茎长度方面的可靠性极佳,但在龟头高度方面的可靠性从较差到良好。对于龟头宽度(0.77-0.95)和阴茎长度(0.71-0.88),评分者之间的可靠性从良好到优秀不等。但是,龟头高度的评分者间可靠性较差(0-0.14)。结论对手术室生成的三维模型进行数字化测量后,每位评分者的可重复性都非常好,而且评分者之间的可靠性也比仅对三维打印模型进行人工测量要高,从而确保了现在和将来不同外科医生都能对图像进行比较。SLS 作为一种以数字方式生成三维模型的新模式前景广阔,可为研究和教育领域的表型分析提供信息。计划进一步开发数字测量方法,以确保评分者之间的一致性,从而对其他参数进行定量评估,并在手术前环境中对该技术进行评估,以制定手术计划:下载高清图片 (285KB)Download:下载全尺寸图片摘要图。通过术中 SLS 获得的阴茎模型的评分者内部可靠性、数字和手动评估。
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引用次数: 0
Response to correspondence regarding “Emergent robot-to-open conversion-multidisciplinary simulation training in crisis management” 对有关 "紧急机器人对开放式设备的转换--危机管理中的多学科模拟训练 "的信件的回复
IF 2 3区 医学 Q2 PEDIATRICS Pub Date : 2024-10-01 DOI: 10.1016/j.jpurol.2024.07.012
Yvonne Y. Chan, John Zhong, Micah A. Jacobs, Craig A. Peters
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引用次数: 0
期刊
Journal of Pediatric Urology
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