Predictors of follow-up of pediatric stone patients after surgical intervention.

OBJECTIVE: We investigated if socioeconomic and demographic factors predict post-surgical follow-up in pediatric stone patients. MATERIALS AND METHODS: All patients having kidney stone surgery at a single academic pediatric hospital over a 5 year period (2016-2020) were identified through the use of CPT® codes specific to ureteroscopy, shock wave lithotripsy, and percutaneous nephrolithotomy. Electronic charts were reviewed for patient demographics, stone characteristics, and characteristics of intervention. Unique patients with a scheduled post-operative follow-up office visit following a first time stone surgery were included in the patient cohort (Figure 1). Primary outcome was attendance of a scheduled provider visit within 6 months after surgery. Secondary outcomes included completion of scheduled post-operative imaging and 24-h urine study. Univariable analysis was performed. RESULTS: 195 pediatric patients, a median age of 15.4 years (IQR: 11.34, 17.14) at surgery, were identified. The majority were non-Hispanic white (86.2%) and female (62.1%). Most had undergone ureteroscopy alone (85.6%). Of the 195 patients, 146 (74.9%) attended a post-operative office visit. Indicators of lower socioeconomic status, such as having public insurance and being from a single-parent home, were associated with not attending a scheduled follow-up visit (p < 0.01 and p = 0.02, respectively). Patients with a pre-operative urology clinic visit were more likely to follow-up with a clinic visit (p = 0.02), while those with a larger total stone burden treated were more likely to undergo ordered imaging (p < 0.01). DISCUSSION: We found that indicators of lower socioeconomic status, such as having public insurance status and being in a single-parent household, were associated with lower pediatric follow-up compliance after kidney stone surgery, while patients seen in the urology clinic preoperatively were more likely to attend follow-up. CONCLUSION: Identifying factors that may predict non-compliance could be used to help at-risk patient populations.

Clearance While Upright on Initial Diuretic Renography Predicts the Need for Surgery in Children With Congenital Hydronephrosis.

OBJECTIVE: To improve the predictive ability of diuretic renography (DR) for surgical intervention in children with congenital hydronephrosis (CH) and concern for ureteropelvic junction obstruction. METHODS: Children with CH born between 2007 and 2021 who underwent initial DR prior to 6months of life, had both clearance while upright (CUP) and T ½ reported, and did not have immediate surgical intervention after the first DR were retrospectively evaluated for surgical intervention during the period of clinical observation. Once the optimal cut-points were identified for CUP and T ½, they were used to calculate the sensitivity, specificity, positive predictive value, and negative predictive value. RESULTS: In total 65 patients were included in the final analysis with 33 (50.8%) undergoing surgical intervention (pyeloplasty) and 32 (49.2%) still on observation at last follow-up. The optimal cut-points for predicting surgical intervention were 28.1 minutes for T ½ and 22.4% for CUP. Applying the CUP cut-point of 22.4% we achieved a sensitivity of 60.6% (95% CI: 43.9-77.3), specificity of 96.9% (95% CI: 90.1-100.0), positive predictive value of 95.2% (95% CI: 86.1-100.0), and negative predictive value of 70.5% (95% CI: 57.0-83.9). CONCLUSION: A low CUP accurately predicts surgical intervention in children with CH who are initially observed. Although there is no singular measure on DR that can with absolute certainty predict future clinical course, our data do suggest there is utility in incorporating CUP (if <22.4%) into the decision process. Further research is necessary to help guide the management of children with intermediate CUP values.

Outcomes after dextranomer/hyaluronic acid bladder neck injection in patients with urethral incontinence following bladder neck repair.

INTRODUCTION: Many patients who undergo surgery for bladder neck (BN) incompetence may still experience incontinence postoperatively. Dextranomer/hyaluronic acid (Dx/HA) is widely used for endoscopic treatment of vesicoureteral reflux in children; however, few studies have reported its use in treating incontinence after BN surgery. OBJECTIVE: The aim of this study was to evaluate outcomes after Dx/HA bladder neck injection in patients with persistent outlet incompetency following BN Repair. STUDY DESIGN: We retrospectively reviewed patients at a single pediatric tertiary care center with history of prior bladder neck surgery and reported persistent incontinence who then underwent endoscopic bladder neck Dx/HA injection from 2013 to 2018 and had subsequent follow-up post-injection. We described primary outcomes of reported incontinence as "wet" (leakage similar to before injection), "improved" (wet but leakage improved), and "dry" (no leakage). Our secondary outcome was need for a secondary procedure after Dx/HA injection, including Dx/HA injection or bladder neck closure (BNC). RESULTS: At first follow-up (median 2.3 months post-op), 7/19 were wet, 6/19 were improved, and 6/19 were dry. At last follow-up (median of 34.7 months), only three patients (16%) were dry. Only one patient who received a single surgery for Dx/HA injection was "dry", though nearly 2/3rds (12) were initially "improved" in their continence. Overall, seven patients had another intervention or surgery after first injection. Five patients had multiple Dx/HA injections after first procedure, which resulted in dryness by last assessment in two of these. Four patients (21%) in the overall cohort required subsequent BNC. DISCUSSION: Longer-term follow-up in our study demonstrated that only one patient who received a single procedure of Dx/HA injection remained dry. Several studies had follow up for greater than 1 year after initial bladder neck Dx/HA injection; rates of dryness after a single surgery for injection were variable and reported between 20 and 40% over follow-up times ranging from 1.5 to 7 years (Alova et al., 2012; DaJusta et al., 2013; Lottmann et al., 2006a; Lottmann et al., 2006b; Kitchens et al., 2007). Our st udy does have inherent limitations. This study was performed at a single institution in a retrospective manner, with a single surgeon reviewing the medical record to determine operative techniques and continence outcomes. The patient population is small, although relatively comparable to other previously reported studies. Outcomes were based on documentation of patient reports and are therefore lacking in objectivity. CONCLUSION: In patients with prior unsuccessful BN repair, long-lasting dryness after single Dx/HA BN injection is unlikely, although one-third may demonstrate relatively durable improvement in incontinence.

Advanced Urology Boot Camp: A Simulation-based Curriculum to Enhance Fourth-year Medical Student Procedural Competency.

INTRODUCTION: Simulation-based medical education continues to gain popularity as the clinical environment requires exemplary patient safety while simultaneously maximizing the learner's educational experience. There is a current lack of urology-focused medical student education curricula in the literature. Here, we present the findings of a didactic and simulation-based medical student advanced "urology boot camp" curriculum, which was designed for learners interested in pursuing careers in urology. METHODS: Twenty-nine fourth-year urology-dedicated medical students completing their subinternship at our institution during the 2018-2019 academic year participated in an advanced hands-on simulation "boot camp," which taught both simple and advanced Foley catheter placement, manual and continuous bladder irrigation, and diagnostic cystoscopy. Knowledge acquisition was assessed through quizzes administered before and after completing electronic modules, and a post-simulation survey assessing learners' confidence in their knowledge and skill set, as well as their satisfaction with the curriculum. RESULTS: Medical students demonstrated significant gains in knowledge from pre-test (mean 73.7%) to post-test (mean 94.5%, P < .001), which was consistent across each simulation procedure. Participants self-reported significant improvement in confidence with the procedures from before to after the educational intervention (P < .001). Students also found the curriculum to be beneficial to their understanding of the subject matter (P < .001), would recommend this curriculum to other medical students (P < .001), and thought it better prepared them to meet expected ACGME (Accreditation Council for Graduate Medical Education) milestones (P < .001). CONCLUSIONS: Findings from our advanced "boot camp" simulation curriculum demonstrated successful gains in knowledge and confidence following learning modules and hands-on simulation, indicating that this type of educational intervention could be beneficial in improving exposure to skills and developing confidence prior to urology internship and junior residency.

Reducing Opioid Prescriptions after Common Outpatient Pediatric Urologic Surgeries: A Quality Improvement Assessment.

Pediatric patients undergoing outpatient surgeries often receive prescriptions for postoperative pain, including opioid medications. As a result, the American Academy of Pediatrics formally challenged all pediatric surgeons to decrease opioid prescribing for common specialty-specific outpatient procedures at discharge. To meet this challenge, we designed a quality improvement project to decrease the average number of opioid doses administered to pediatric patients undergoing 3 common outpatient urologic surgeries: circumcision, orchiopexy, and inguinal hernia repair (IHR). Methods: We formally challenged providers at our institution to reduce opioid doses per prescription and administration to patients overall. We performed a retrospective chart review at our single pediatric institution to establish baseline opioid prescribing values from July 2017 to March 2018. We aimed to reduce this value by 50% in 6 months and sustain this decrease throughout the project duration. Results: We performed 1,518 orchiopexies, 1,505 circumcisions, and 531 IHRs. The percent change in the average number of opioid doses prescribed per patient from baseline values assessed to 2021 was statistically significant for orchiopexies (P < 0.0001), IHRs (P < 0.0001), and circumcisions (P < 0.0001). In addition, the change in the percentage of patients prescribed opioids from baseline was statistically significant for all 3 procedures (P < 0.001). Conclusions: This project demonstrated that through an organized quality improvement initiative, the average number of opioid medications prescribed and the total percentage of patients prescribed opioids following common outpatient pediatric urologic procedures can be decreased by at least 50% and sustained through project duration.

Improving Access and Quality of Care for Kidney Stone Patients in an Underserved Community.

There is a call to improve Medicaid patient access to health care, enhance quality and outcomes of care, and reduce overall financial burden. We sought to build a comprehensive kidney stone program to help patients navigate through the acute and preventive aspects of stone disease by increasing multidisciplinary referrals and compliance with recommendations and decreasing no-show rates at first follow-up and repeat stone encounters after initial evaluation. A collaborative multidisciplinary program was established at our single institution consisting of urology, nephrology, and dietary specialists to be piloted over a 3-year period. Medicaid-designated patients were evaluated during new patient encounters by urology specialists and then followed for outpatient follow-up, including specialty referrals to nephrology specialists and dietitians, for targeted preventive measures. Subjective compliance reports by patients following interventions and no-show rates at subsequent follow-ups were documented. We also followed patients 6 months beyond the initial encounter to assess repeat Emergency Department (ED) visits for acute stone episodes. One hundred eighty-three Medicaid-designated stone patients were evaluated from 2018 to 2021. Sixty-eight percent of patients identified as White, 18% identified as Black/African American, and 14% identified as "Other." Patients underwent specialty referrals to nephrology or a dietician in 47% and 42% of cases, respectively. Since the program's implementation, reported patient compliance and referrals to multidisciplinary specialists increased from 72.9% to 81.30% and 21.2% to 56.20%, respectively. Repeat ED visits for stone-related encounters within 6 months of initial presentation remained relatively stable (from 17.60% to 18.9%), while no-show rates at first follow-up decreased from 20.0% to 6.30% by study conclusion. There is continued supporting evidence for the importance of a comprehensive kidney stone program specifically for patients of lower socioeconomic status following a 3-year implementation at our institution. Encouraging results indicate increased access to multidisciplinary specialty referrals, with improvement in follow-up and reported compliance related to stone prevention strategies.

Urology Boot Camp: A Pilot Medical Student Curriculum for Common Bedside Urologic Procedures.

OBJECTIVES: To develop a novel "bootcamp" simulation-based curriculum to introduce common urologic procedures and to improve readiness for performing them at bedside. METHODS: Three hundred twenty-five third-year medical students at our single institution participated in a hands-on simulation "boot camp" over a 2-year accrual period. This curriculum was designed to teach basic urologic bedside procedures (ie, Foley catheter placement, Bladder irrigation) to third year medical students prior to the start of their surgical clerkships in a live instructional setting with direct feedback from instructors. The objective aspects of the study consisted of a survey administered to study participants following participation in the simulation boot camp, as well as pre- and post-module assessments. RESULTS: Medical students self-reported knowledge gains following the simulation session (P < .001), with 45.8% increase in procedural confidence. Additionally, students reported that the educational intervention was beneficial to their understanding of the subject matter (P < .001), were "very likely" to recommend the session to another medical student (P < .001), and felt that educational intervention better prepared them for an upcoming national exam (P < .001). Finally, the greatest gains were seen for those students who self-reported lower precurriculum knowledge (P < .001). CONCLUSIONS: Findings from our M3 "boot camp" led to self-reported gains in subject matter knowledge following the hands-on simulation curriculum, indicating that this type of educational intervention can be beneficial in preparing medical students for common bedside procedures.

The Effectiveness of a Non-Invasive Shot Blocking Device for Reducing Pain of In-office Injections in Hand Surgery.

Background: The gate control theory asserts that non-painful stimuli can block pain perception. The ShotBlocker™ device is a plastic disk with blunt projections that rests on the skin, and we hypothesize that it will reduce pain during hand injections. Methods: This is a prospective randomized trial of 117 patients undergoing injections for common hand conditions. Patients were randomized into 3 groups: device, placebo (device with projections removed), and control. Patients recorded on an analog pain scale the pain severity of the injection, as well as their most recent tetanus shot. A normalized pain score was obtained from the difference between the injection and tetanus shot pain scores. The mean non-normalized and normalized scores for each treatment group were compared to the control group using the Wilcoxon signed rank test. Results: There were 91 women and 26 men. Common diagnoses included trigger finger (n = 53), DeQuervain's tendonitis (n = 33), and basal joint arthritis (n = 22). The groups did not differ significantly in age, gender, or diagnosis. Mean pain score in the device group was 5.2 out of 10, and it was 5.7 for the control group. The normalized pain score in the device group was significantly lower than the control group. Normalized and non-normalized pain scores for the placebo group were not significantly lower than the control group. Conclusions: The shot blocking device effectively reduced pain of injection versus controls when pain scores were normalized for pain tolerance. The modified device did not reduce the pain of injection, suggesting that gate control is the mechanism of action.

International Publication Patterns on Operative Management of Wilms Tumor: A Review by Surgeon Specialty and Surgical Modality.

OBJECTIVE: To review the temporal trends in the published literature of the surgical management of Wilms tumor (WT) relative to surgical modality and authorship by surgeon specialty (pediatric urology [PU] vs pediatric surgery [PS]). METHODS: The MEDLINE/PubMed database was queried for manuscripts published by PU or PS including operative management of WT from 1993-2017. After manuscript review, 187 of 2420 studies were included. Studies were compared by author specialty, country of origin, and represented patients. RESULTS: PU published 32% of included publications. The proportion of first author publications by PU increased over time (25% from 1993-2005 to 39% from 2006-2017, P = .029). While PU were first author on 44% of studies in North America, they were relatively underrepresented internationally. PU and PS were equally likely to be first author on cooperative group studies, which accounted for 19% of the overall publications. 14,958 patients underwent extirpative surgery for WT. There was a small increase in publications reporting the use of minimally-invasive surgery (MIS) and nephron-sparing surgery (NSS) over time (<1% and 4% from 1993-2005 to 2% and 7% from 2006-2017, respectively, P <.001). Compared to PS, PU were significantly more likely to publish on patients managed with MIS and NSS (P = .006 and P < 0.001 respectively). CONCLUSION: Publications by PU on the surgical management of WT are increasing over time, but are still fewer than PS. PU appeared to be the drivers of the temporal trend towards the increasing use of MIS and NSS in the published literature.

Appalachian Status Is a Negative Predictor of Breast Reconstruction Following Breast Cancer Resection.

BACKGROUND: Health care disparities in Appalachia are well documented. However, no previous studies have examined possible differences in the utilization of breast reconstruction (BR) in Appalachia. This study aims to determine if a disparity in BR utilization exists in women from Appalachia Kentucky. METHODS: A retrospective, population-based cohort study was conducted from January 1, 2006, to December 31, 2015. The Kentucky Cancer Registry was queried to identify population-level data for female patients diagnosed with breast cancer and treated with mastectomy. A multivariate logistic regression model controlling for patient, disease, and treatment characteristics was constructed to predict the likelihood of BR. RESULTS: Bivariate testing showed differences (P < 0.0001) in BR utilization between Appalachian and non-Appalachian women in Kentucky (15.0% and 26.3%, respectively). Multivariate analysis showed that women from Appalachia (odds ratio, 0.54; confidence interval (95), 0.48-0.61; P < 0.0001) were less likely to undergo BR than non-Appalachian women. Interestingly, the rate of BR increased over time in both Appalachian (r = 0.115; P < 0.0001) and non-Appalachian women (r = 0.148; P < 0.0001). CONCLUSIONS: Despite the benefits of BR, women from Appalachia undergo BR at lower rates and are less likely to receive BR than non-Appalachian Kentuckians. Although the rates of BR increased over time in both populations, access to comprehensive breast cancer care remains a challenge for women from Kentucky's Appalachian region.