Publications by authors named "Dana Weiss"

Article Synopsis
  • The study investigates how early imaging features related to posterior urethral valves (PUV) in children can predict the progression of chronic kidney disease (CKD) and potential renal failure. !* -
  • Researchers analyzed data from 274 children diagnosed with PUVs to identify factors such as vesicoureteral reflux and nadir creatinine that correlate with CKD progression over an average follow-up of nearly 6 years. !* -
  • Results indicated that the presence of vesicoureteral reflux and a low nadir creatinine level in the first year of life significantly predicted CKD progression, highlighting the usefulness of these early measurements in assessing future renal function. !*
View Article and Find Full Text PDF
Article Synopsis
  • The study focused on the impact of race and insurance status on high-grade renal trauma (HGRT) among children, analyzing data from a large trauma registry between 2007 and 2020.
  • Out of 341 initially identified pediatric patients with HGRT, differences were observed in the mechanism of injury and presentation age based on race, with African American (AA) patients experiencing more penetrating trauma and younger age at presentation.
  • Insurance status affected the rates of bowel injuries and blood transfusions, and private insurance patients had higher rates of follow-up care, but neither race nor insurance status impacted overall surgical intervention outcomes, post-injury complications, or mortality rates.
View Article and Find Full Text PDF
Article Synopsis
  • Testicular torsion is an emergency condition requiring timely surgery to either save or remove the affected testis, with urgency emphasizing the need to minimize ischemia time.* -
  • The study aimed to explore how patient transfer impacts surgical outcomes, particularly focusing on race and socioeconomic factors, while determining the critical cutoff times for surgery to preserve the testis.* -
  • Findings indicated that race and socioeconomic status did not significantly influence surgical success, but factors like age and timing from symptom onset were crucial, with optimal cutoffs identified at 10.5 hours for presentation and 14.5 hours for detorsion.*
View Article and Find Full Text PDF

Background: Exstrophy-epispadias complex (EEC) classically presents as bladder exstrophy (BE) and requires lifetime urologic care. As men and women with BE age, there is an often difficult period of transition to adulthood in terms of addressing urologic and general health challenges. BE can lead to many urinary and sexual health issues as these patients age, which is often made more complex given their past surgical history and anatomy.

View Article and Find Full Text PDF

Objective: To evaluate the outcomes of pre-toilet trained children undergoing robot-assisted laparoscopic ureteral reimplantation (RALUR) for the treatment of primary VUR at our institution and compare these to an older cohort.

Materials And Methods: This retrospective study analyzed data from a single institution's registry, comparing outcomes between pre-toilet trained and toilet trained children who underwent RALUR for primary VUR. Preoperative parameters, surgical details, and postoperative outcomes were evaluated.

View Article and Find Full Text PDF
Article Synopsis
  • Hypospadias repair often leads to complications, and while factors like anatomy and surgeon experience are known contributors, the influence of social determinants of health on outcomes is less understood.
  • The study aimed to explore how resources and community conditions, assessed through the Childhood Opportunity Index (COI), impact post-operative complications in children who underwent distal hypospadias repair.
  • An analysis of 938 patients showed a 14.1% complication rate, but no significant correlations were found between COI, insurance type, race, and complications; however, anatomical factors like glans width and chordee degree were linked to complications.
View Article and Find Full Text PDF
Article Synopsis
  • - The study investigates non-operative management of pediatric ureteroceles, finding that this approach leads to less frequent and later secondary surgical interventions compared to those who undergo immediate surgery.
  • - Successful non-operative treatment is linked to factors such as smaller ureterocele size, absence of high-grade vesicoureteral reflux (VUR), and fewer comorbidities among patients.
  • - Despite these findings, there is still no standard method for choosing which patients should receive non-operative care, highlighting the need for more consensus in managing ureteroceles.
View Article and Find Full Text PDF
Article Synopsis
  • Robot-assisted laparoscopic pyeloplasty (RALP) is an effective treatment for pediatric ureteropelvic junction obstruction (UPJO), with success rates over 95%, but can be challenging in cases with complex renal anatomy.
  • This study evaluated the outcomes of RALP in children with complex renal anatomy (e.g., horseshoe kidney, ectopic kidney) compared to those with simple anatomy by analyzing data from 2012 to 2022.
  • The results showed no significant differences in age, procedure time, length of hospital stay, or overall success rates between the two groups, though the causes of obstruction varied significantly between patients with complex vs. simple anatomy.
View Article and Find Full Text PDF

Fibroepithelial polyps in the urinary tract are a rare cause of obstructive uropathy with fewer than 130 cases reported in the literature. In our series, we describe polyps that were missed on preoperative imaging and later found in the operating room during pyeloplasty. It is critical for urologists to be aware of polyps as a potential source of obstruction as they can increase the complexity of a reconstruction and, if missed, may result in a failed repair and persistent obstruction.

View Article and Find Full Text PDF

Introduction: Bladder dysfunction, or more specifically lower urinary tract dysfunction (LUTD), remains a common reason for pediatric urology consultation, and the management of these patients is time consuming and frustrating for patients, families and providers alike. But what happens when the patient proves refractory to current treatment modalities? Is there a role for the use of videourodynamics (VUDS) to help guide therapy in the patient with refractory voiding dysfunction, and if so how might we select patients for this invasive study in order to increase the yield of useful information?

Objectives: To determine the role, if any, for VUDS in the evaluation of pediatric patients with refractory LUTD and to identify parameters that might be used to select patients for this invasive study in order to increase the yield of useful information.

Study Design: Through our IRB-approved prospectively maintained urodynamics database, we retrospectively identified 110 patients with non-neurogenic LUTD over a period from 2015 to 2022 who underwent VUDS.

View Article and Find Full Text PDF

Purpose: Bladder exstrophy (BE) poses challenges both during the surgical repair and throughout follow-up. In 2013, a multi-institutional BE consortium was initiated, which included utilization of unified surgical principles for the complete primary repair of exstrophy (CPRE), real-time coaching, ongoing video capture and review of video footage, prospective data collection, and routine patient data analysis, with the goal of optimizing the surgical procedure to minimize devastating complications such as glans ischemia and bladder dehiscence while maximizing the rate of volitional voiding with continence and long-term protection of the upper tracts. This study reports on our short-term complications and intermediate-term continence outcomes.

View Article and Find Full Text PDF
Article Synopsis
  • Epispadias is a developmental condition affecting boys, with varying severity and surgical treatment options ranging from simple repair to complex reconstructions of the bladder and urethra.
  • This study evaluated the outcomes of 36 boys with epispadias from three institutions, focusing on their continence status and the type of surgical procedures they received over a median follow-up period of 11.3 years.
  • Results showed that 92% of participants were able to void normally; however, continence rates varied based on the severity of epispadias, with complete dryness reported in 58% of those able to void.
View Article and Find Full Text PDF

Purpose: This study aimed to analyze organ system-based causes and non-organ system-based mechanisms of death (COD, MOD) in people with myelomeningocele (MMC), comparing urological to other COD.

Methods: A retrospective review was performed of 16 institutions in Canada/United States of non-random convenience sample of people with MMC (born > = 1972) using non-parametric statistics.

Results: Of 293 deaths (89% shunted hydrocephalus), 12% occurred in infancy, 35% in childhood, and 53% in adulthood (documented COD: 74%).

View Article and Find Full Text PDF

Neurogenic bladder poses a major morbidity in children with spina bifida (SB), and videourodynamic studies (VUDS) are used to stratify this risk. This small-scale pilot study utilized current mass-spectrometry-based proteomic approaches to identify peptides or proteins in urine that may differentiate children at high risk of developing renal complications from a neurogenic bladder. Twenty-two urine samples of which nine had high bladder pressure storage that put the upper urinary tract at risk, while 13 with a lower risk for renal compromise were analyzed.

View Article and Find Full Text PDF
Article Synopsis
  • * Early detection before birth is crucial for helping families prepare and ensuring that specialized medical resources are in place.
  • * The study highlights a specific case of covered cloacal exstrophy and emphasizes the need for more data across institutions to better understand and support these rare conditions over time.
View Article and Find Full Text PDF

Objectives: To assess the prevalence of pelvic ectopic kidneys (PEK) and compare renal parameters of the PEK to the orthotopic kidney following pubic bone approximation.

Methods: In four Omphalocele-Exstrophy-Imperforate Anus-Spinal Defects Syndrome (OEIS) patients undergoing second-stage repair with known pelvic and orthotopic kidneys, changes in the renal pelvis pressure (RPP), peak systolic velocity (PSV), and resistive index (RI) were measured in the pelvic and orthotopic kidneys following pubic bone approximation. A paired t-test was performed for analysis.

View Article and Find Full Text PDF

Introduction: Posterior urethral valves (PUV) occur in patients with Down Syndrome (DS) at a rate of 3-4%; far higher than the general population. Our understanding of the relationship between PUVs and DS is in its infancy, with the majority of the literature consisting of case reports. In this study, we present the largest known series of DS patients with PUVs.

View Article and Find Full Text PDF
Article Synopsis
  • This text talks about how doctors use ultrasounds to check for hydronephrosis, a condition where kidneys swell due to urine buildup. Different ways to grade this problem exist but they aren’t always super accurate.
  • Researchers are working on a computer program using machine learning (like artificial intelligence) to help classify the severity of hydronephrosis based on ultrasound images more reliably.
  • In their study, they tested this new computer model against expert doctors and found that the machine was pretty good at predicting the kidney condition correctly, with high accuracy rates!
View Article and Find Full Text PDF

Purpose: Testosterone administration prior to hypospadias repair is common practice among pediatric urologists; however, its impact on surgical outcomes remains controversial. We hypothesize that testosterone administration prior to distal hypospadias repair with urethroplasty significantly decreases postoperative complications.

Materials And Methods: We queried our hypospadias database for primary distal hypospadias repairs with urethroplasty from 2015 to 2021.

View Article and Find Full Text PDF

Aim: There is often a gap between the ideal of involving older persons iteratively throughout the design process of digital technology, and actual practice. Until now, the lens of ageism has not been applied to address this gap. The goals of this study were: to voice the perspectives and experiences of older persons who participated in co-designing regarding the design process; their perceived role in co-designing and intergenerational interaction with the designers; and apparent manifestations of ageism that potentially influence the design of digital technology.

View Article and Find Full Text PDF