{"title":"Training the next generation of quality improvement champions in pediatric urology: A virtual program co-sponsored by the journal of pediatric urology","authors":"","doi":"10.1016/j.jpurol.2024.04.024","DOIUrl":"10.1016/j.jpurol.2024.04.024","url":null,"abstract":"","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 1009-1011"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141143105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Assessing the effects of bladder decellularization protocols on extracellular matrix (ECM) structure, mechanics, and biology","authors":"","doi":"10.1016/j.jpurol.2024.06.002","DOIUrl":"10.1016/j.jpurol.2024.06.002","url":null,"abstract":"<div><h3>Introduction</h3><div>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.</div></div><div><h3>Methods</h3><div>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.</div></div><div><h3>Results</h3><div>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.</div></div><div><h3>Conclusion</h3><div>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.<span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (157KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span><span><span><p><span>Summary figure</span>. </p></span></span></figure></span></div></div>","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 843-850"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141399351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michael Sennert, Christina Perske, Mohammed Fawzy, Johannes Wirmer, Ahmed T. Hadidi
{"title":"Response to the letter to the Editor “Which hormone, which plate, which reduction?”","authors":"Michael Sennert, Christina Perske, Mohammed Fawzy, Johannes Wirmer, Ahmed T. Hadidi","doi":"10.1016/j.jpurol.2024.07.014","DOIUrl":"10.1016/j.jpurol.2024.07.014","url":null,"abstract":"","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 866-867"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141885231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Technical nuances of the concealed penis repair","authors":"Mark R. Zaontz , Christopher J. Long","doi":"10.1016/j.jpurol.2024.07.009","DOIUrl":"10.1016/j.jpurol.2024.07.009","url":null,"abstract":"<div><div>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.</div></div>","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 1002-1003"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141699276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Douglas A. Canning 39th recipient of the American Academy of Pediatrics Medal in Urology: Personal Reflections","authors":"","doi":"10.1016/j.jpurol.2024.03.015","DOIUrl":"10.1016/j.jpurol.2024.03.015","url":null,"abstract":"","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 789-792"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140278881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Long-term outcome of gender assignment in individuals with 46, XY DSD assigned female sex in multicultural society","authors":"","doi":"10.1016/j.jpurol.2024.03.033","DOIUrl":"10.1016/j.jpurol.2024.03.033","url":null,"abstract":"<div><h3>Background</h3><div>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.</div></div><div><h3>Methods</h3><div>We have conducted a retrospective study of all 46, XY DSD patients who underwent female assignment in our institution over the last 30 years.</div></div><div><h3>Results</h3><div>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.</div></div><div><h3>Conclusions</h3><div>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.</div></div>","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 831-834"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140610217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Commentary to contemporary disparities in progression to orchiopexy for cryptorchidism as reported in the Pediatric Health Information System (PHIS) database","authors":"","doi":"10.1016/j.jpurol.2024.04.025","DOIUrl":"10.1016/j.jpurol.2024.04.025","url":null,"abstract":"","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 829-830"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application of intraoperative structured light scanning to enable post-operative evaluation of digital and 3D-printed penile models","authors":"","doi":"10.1016/j.jpurol.2024.05.011","DOIUrl":"10.1016/j.jpurol.2024.05.011","url":null,"abstract":"<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","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 835-842"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141132401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yvonne Y. Chan, John Zhong, Micah A. Jacobs, Craig A. Peters
{"title":"Response to correspondence regarding “Emergent robot-to-open conversion-multidisciplinary simulation training in crisis management”","authors":"Yvonne Y. Chan, John Zhong, Micah A. Jacobs, Craig A. Peters","doi":"10.1016/j.jpurol.2024.07.012","DOIUrl":"10.1016/j.jpurol.2024.07.012","url":null,"abstract":"","PeriodicalId":16747,"journal":{"name":"Journal of Pediatric Urology","volume":"20 5","pages":"Pages 1017-1018"},"PeriodicalIF":2.0,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141697712","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}