Publications by authors named "Timberlake M"

Introduction/background: Owing to restrictions in operative experiences, urology residents can no longer solely rely on 'hands-on' operative time to master their surgical skills by the end of residency. Simulation training could help residents master basic surgical skills and steps of a procedure to maximize time in the operative room. However, simulators can be expensive or tedious to set up, limiting the availability to residents and training programs.

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Objective: We sought to develop and validate a low-cost, high-fidelity robotic surgical model for the urethrovesical anastomosis component of the robot-assisted laparoscopic radical prostatectomy.

Materials And Methods: A novel simulation model was constructed using a 3D-printed model of the male bony pelvis from CT scan data and silicone molds to recreate the soft tissue aspects. Using a da Vinci Si surgical robot, urology faculty and trainees performed simulated urethrovesical anastomosis.

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Background: Baseline and interval dimercaptosuccinic acid (DMSA) scans and urodynamic (UD) studies are often obtained in infants and young children with spinal dysraphism (SD).

Objective: To identify practical UD parameters which accurately stratify urologic risk young children with SD.

Study Design: 130 expectantly managed infants/young children with SD and initial DMSA and UD before age 2 were reviewed.

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Background: We examined how problem-solving coaching impacts trainee skill acquisition and physiologic stress as well as how trainee sensitivity to feedback, known as self-monitoring ability, impacts coaching effectiveness.

Methods: Medical students completed a pre-training demographics questionnaire, a 12-item self-monitoring ability scale (1 = always false, 5 = always true), and baseline FLS Task 5 with physiologic sensors. After watching a laparoscopic suturing instructional video, students practiced the task for 30 min, either with a surgical coach, or alone, depending on condition.

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Recent evidence suggests that the cellular response to stress often elicits the unfolded protein response (UPR), which has an active role in major depression in emotionally relevant regions of the brain, such as the hippocampus. Much of the UPR activity has been found to be coalesced with the pro-inflammatory environment of the depressed brain. Specifically, downstream transcriptions of pro-inflammatory cytokines and increased regulation of candidate inflammatory mediators, such as toll-like receptors (TLRs), are promoted by the UPR.

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Purpose: Report urologic outcomes among newborns with spinal dysraphism managed within an expectant clean intermittent catheterization (CIC) program.

Methods: Newborns were followed clinically and with serial ultrasound (US). Urodynamics (UD) and dimercaptosuccinic acid (DMSA) renal scan were obtained at 3-6 months, 1 year, 3 years, then as needed.

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Objective: We describe a half-day faculty development course designed to equip surgical educators with evidence-based teaching frameworks shown to promote learning in the operating room (OR). We hypothesize that participating faculty will deliver improved instruction as perceived by residents.

Methods: Residents anonymously rated faculty teaching behaviors among whom they had recently worked in the OR (minimum 3 cases in preceding 6 months) using the Briefing - Intraoperative teaching - Debriefing Assessment Tool (BIDAT; 1 = never, 5 = always).

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Background: MAG3 diuretic renal scan remains the gold standard for determination of improvement in renal drainage following pyeloplasty for ureteropelvic junction obstruction. We hypothesized that (i) a change in geometric measurements between pre-operative and post-operative renal ultrasound (RUS) images and (ii) blinded simple visual review of images both would predict pyeloplasty success.

Objective: To determine if simple visual review and/or novel geometric measurement of renal ultrasounds can detect pyeloplasty failure.

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Major depression disorder (MDD) is a debilitating mental illness with significant morbidity and mortality. Despite the growing number of studies that have emerged, the precise underlying mechanisms of MDD remain unknown. When studying MDD, tissue samples like peripheral blood or post-mortem brain samples are used to elucidate underlying mechanisms.

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Article Synopsis
  • A systematic review was conducted to explore effective teaching methods for surgical trainees in the operating room, aiming to enhance their performance and competency.
  • The review analyzed 34 relevant studies, categorizing them into perceptions, best practices, and interventions, with varying strengths of evidence for each category.
  • The findings revealed that interventions positively impact trainee assessments of faculty teaching, highlighting a mismatch between trainees' and faculty members' perceptions of teaching effectiveness, while emphasizing the importance of a structured approach to teaching throughout the surgical process.
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Purpose Of Review: Although open ureteral reimplantation remains the gold standard for surgical correction of vesicoureteral reflux (VUR), robotic-assisted laparoscopic ureteral reimplantation (RALUR) holds promise and is becoming more widely utilized. The present article outlines primary operative techniques for RALUR, summarizes the current literature with respect to surgical outcomes and costs, and discusses early applications of RALUR to complex and reoperative cases.

Recent Findings: Intravesical and extravesical techniques for RALUR have been described.

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The unfolded protein response (UPR) is an evolutionarily conserved defensive mechanism that is used by cells to correct misfolded proteins that accumulate in the endoplasmic reticulum. These proteins are misfolded as a result of physical stress on a cell and initiate a host of downstream effects that govern processes ranging from inflammation to apoptosis. To examine whether UPR system plays a role in depression, we examined the expression of genes that are part of the three different pathways for UPR activation, namely GRP78, GRP94, ATF6, XBP-1, ATF4, and CHOP using an animal model system that distinguishes vulnerability (learned helpless, LH) from resistance (non-learned helpless, NLH) to develop depression.

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Purpose: To determine the impact of anterior segment geometry on ocular scoring systems quantifying anterior chamber (AC) cells in humans and 7 common laboratory species.

Methods: Using normative anterior segment dimensions and novel geometric formulae, ocular section volumes measured by 3 scoring systems; Standardization of Uveitis Nomenclature (SUN), Ocular Services On Demand (OSOD), and OSOD-modified SUN were calculated for each species, respectively. Calculated volumes were applied to each system's AC cell scoring scheme to determine comparative cell density (cells/mm(3)).

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Article Synopsis
  • Fetal interventions for obstructive uropathy have evolved since the 1980s, aiming to improve both perinatal and long-term outcomes, but results show that long-term kidney issues persist among survivors.
  • The most common disorder, posterior urethral valves (PUVs), has seen better selection criteria for interventions due to advancements in understanding fetal renal physiology and potential biomarkers, yet the effectiveness of surgical interventions remains limited.
  • While selected fetal surgeries may enhance perinatal survival, risks to both mother and fetus persist, and the primary treatment for PUV postnatally is still needed as prenatal outcomes have not matched expectations.
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Introduction: Minimally-invasive approaches for inguinal hernia repair have evolved from conventional laparoscopy requiring placement of three ports and intracorporeal suturing to simple, one and two port extraperitoneal closure techniques. We utilize a single port laparoscopic percutaneous repair (LPHR) technique for selected children requiring operative intervention for inguinal hernia. We suspect that compared to open surgery, LPHR offers shorter operative duration with comparable safety and efficacy.

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Introduction: Pediatric patients with chronic urologic conditions frequently require lifelong evaluation and treatment. Transition to adult urologic care is critically important as these patients mature and the goals of care shift to include sexual function, fertility, and reconstruction.

Objective: Our objectives are to (1) quantify and describe the population of young adult patients with congenital or childhood-acquired urologic problems who continue to be followed in pediatric urology clinic, to (2) discuss the numerous obstacles to successful care transition, and to (3) outline the design features of the dedicated transition clinic we established in response to the identification of a sizeable population in need.

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The optimal management approach for children with ureterocele and complete pyeloureteral duplication, especially in the setting of high-grade ipsilateral vesicoureteral reflux, remains unclear. Trends in surgical management reflect a shift from single-stage open reconstruction toward conservative management and minimally invasive approaches. This article reviews lower tract approaches (endoscopic ureterocele incision and ipsilateral ureteroureterostomy), and upper tract approaches (ureterocele moiety heminephrectomy) in terms of selected operative techniques, patient selection, published outcomes, postoperative care, and follow-up.

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Background: Massachusetts is one of a very limited number of states exclusively employing participant-direction to deliver autism waiver services to children. A crucial element of this waiver program is the work conducted by the state's Department of Developmental Services (DDS) staff and state-approved providers with waiver families to facilitate the implementation of the participant-direction model. Our study investigates the effect of the collaboration between state providers and family caregivers on family well-being.

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This study investigated families' experience of choice within a participant-directed Medicaid waiver program for young children with autism. Fourteen parents or grandparents participated in in-depth interviews about their experience of choosing personnel, directing in-home services, and managing the $25,000 annual allocation. Key findings included families' preference to hire providers with whom they have a prior relationship, parent empowerment and differences of opinion about parents as teachers.

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No universal guidelines exist for the management of patients with mild to moderate antenatal hydronephrosis (ANH). Unsurprisingly, practice patterns vary considerably with respect to recommendations for postnatal evaluation and follow-up imaging schedule. Although some clinical tools are available to specifically grade ANH and postnatal hydronephrosis, these are commonly used interchangeably with varying degrees of success.

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We examined racial and ethnic disparities in quality of care for children with autism and other developmental disabilities and whether disparities varied for children with autism compared to children with other developmental disabilities. Analyzing data from the National Survey of Children with Special Health Care Needs (N  =  4,414), we compared Black and Latino children to White children. We found racial and ethnic disparities on 5 of 6 quality outcomes.

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This study examines access to, utilization of, and quality of health care for Latino children with autism and other developmental disabilities. We analyze data from the National Survey of Children with Special Health Care Needs (N  =  4,414 children with autism and other developmental disabilities). Compared with White children, Latino children with autism and other developmental disabilities had a consistent pattern of worse health care access, utilization, and quality.

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Background: Mannequin and computer-based simulators are useful for the practice of patient management, physical procedures, and competency. However, they are ineffective in teaching clinical medicine. StepStone Interactive Medical Software (SS) is a web-based medical learning modality that provides the user with a highly focused set of evaluative and interventional tasks to treat memorable virtual patients in a visual case-based format.

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Background: Mannequin and computer-based simulators are useful for the practice of patient management, physical procedures, and competency. However, they are ineffective in teaching clinical medicine. StepStone Interactive Medical Software (SS) is a web-based medical learning modality that provides the user with a highly focused set of evaluative and interventional tasks to treat memorable virtual patients in a visual case-based format.

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