Publications by authors named "Roger Sur"

Article Synopsis
  • Developed a nonbiohazardous simulator for ultrasound-guided percutaneous nephrolithotomy using expert feedback and modern education theory.
  • A prototype was created with realistic anatomical features through 3D printing and hydrogel molding, and validated by expert surgeons and participants in multicenter trials.
  • The simulator showed high satisfaction ratings and significant skill improvements for residents, making it an effective training tool for urologic education.
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Purpose: This study reports on a prospective, multicenter, single-arm, clinical trial utilizing the SonoMotion (San Mateo, California) Break Wave lithotripsy (BWL) device to fragment urinary stones.

Materials And Methods: Patients with a urinary stone underwent a single treatment of 30 minutes and peak negative pressure of 4.5 to 8 MPa.

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Next-generation sequencing (NGS) is a new molecular technique for identifying microorganisms. Treating bacteriuria in patients undergoing stone removal procedures is important for preventing postoperative urinary tract infection (UTI). The objective of this study is to assess the usefulness of preoperative urine NGS testing by comparing NGS with standard urine culture in predicting postoperative UTI after ureteroscopic lithotripsy (URSL) and percutaneous nephrolithotomy (PCNL).

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Background: The stone burden based management strategy reported in the guidelines published by different associations is well known for a long time. Staghorn calculi, representing the largest burden and most complex stones, is one of the most challenging cases to practicing urologists in clinical practice. The International Alliance of Urolithiasis (IAU) has released a series of guidelines on the management of urolithiasis.

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Article Synopsis
  • - The study aimed to evaluate how kidney stone disease (KSD) and its treatments affect the health-related quality of life (HRQOL) in high-risk patients with conditions like hyperparathyroidism and medullary sponge kidney.
  • - Researchers used a questionnaire on 3,301 patients over six years, revealing that high-risk patients (120 of 1,499 active KSD patients) reported significantly lower HRQOL scores than controls.
  • - Specific conditions such as medullary sponge kidney disease and renal tubular acidosis were linked to worse HRQOL, while alkali therapy was associated with improved HRQOL, highlighting the need for earlier identification and treatment of high-risk patients.
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Patients with recurring kidney stone events can expect significant morbidity and functional impairment. Few studies have evaluated the effect of bilateral kidney stones on disease progression and quality of life. We wanted to determine the association of bilateral stone disease on age of onset, and the impact on number of stone events and individual kidney stone disease-specific health-related quality of life (HRQOL) by analyzing the validated and prospectively collected Wisconsin Stone Quality of Life (WISQOL) database.

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The American Urological Association guidelines state that continuing anticoagulant (AC) and antiplatelet (AP) agents during ureteroscopy (URS) is safe. Through a multi-institutional retrospective study, we sought to determine whether pre-stenting in patients on AP or AC was associated with fewer URS bleeding-related complications. A series of 8614 URS procedures performed across three institutions (April 2010 to September 2017) was electronically reviewed for AC/AP use at time of URS.

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Introduction: Despite its minimally invasive nature, percutaneous nephrolithotomy (PCNL ) may be associated with significant pain. Challenges in pain control may prevent timely discharge (and expose patients to adverse effects of opioid use). We sought to evaluate whether our patients who underwent erector spinae plane (ESP) regional blocks experienced improved postoperative pain control and decreased opioid use after PCNL (compared with those who did not receive blocks).

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Article Synopsis
  • * This research analyzed data from two multicenter studies, focusing on PCNL patients and assessing clinical signs within the first day after surgery.
  • * Results showed both qSOFA and SIRS had 100% sensitivity, but qSOFA demonstrated higher specificity (90.8%) versus SIRS (72.4%) for predicting ICU admissions for vasopressor support.
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In 2018, the Endourology Disease Group for Excellence (EDGE) published a prospective trial comparing dusting versus basketing during ureteroscopy. One hundred fifty-nine patients were included in the original analysis, which found no difference in stone-free rate at 3 months. We report the intermediate and long-term outcomes of patients included in the original trial.

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To evaluate flexible ureteroscope working channels with a 1.06 mm digital borescope (Clarus Medical, Minneapolis, MN) and identify factors contributing to ureteroscope damage over time. We performed a single institutional prospective study of patients undergoing stone surgery using a nondisposable flexible ureteroscope.

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Article Synopsis
  • Residual fragments (RFs) after percutaneous nephrolithotomy (PCNL) can negatively affect patients' quality of life, and this study aimed to analyze their natural history and impacts based on different sizes of RFs.
  • The study included data from 439 patients and found that larger RFs (>4 mm) were linked to higher rates of reintervention and complications, while smaller RFs (≤2 mm) had better outcomes in terms of passage and lower regrowth rates.
  • Factors such as age, body mass index, and RF size were significant predictors of stone-related events, emphasizing the importance of managing residual fragments for better patient outcomes after PCNL.
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It is documented that Hispanic/Latinx kidney stone formers have inferior health-related quality of life (HRQoL) compared to the general population. We hypothesized that socioeconomic factors drive HRQoL disparities. Specifically, we sought to determine if medical insurance type is associated with HRQoL disparities among Hispanic/Latinx stone formers.

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To evaluate whether computer program-estimated urolith stone volume (SV) was a better predictor of spontaneous passage (SP) compared with program-estimated stone diameter (PD) or manually measured stone diameter (MD), and whether utilizing SV and MD together provided additional value in SP prediction compared with MD alone. Retrospective analysis of patients with acute renal colic and single renal/ureteral stone on CT from July 2017 to April 2020. Diameter obtained from radiology reports or manually measured when report not available.

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Purpose: Our aim is to evaluate the safety and efficacy of endoscopic combined intrarenal surgery compared to percutaneous nephrolithotomy to guide practitioners and inform guidelines.

Materials And Methods: A detailed database search was performed in PubMed, OVID, Scopus, and Web of Science in October 2021 to identify articles pertaining to ECIRS published between 2001 and 2021.

Results: Four nonrandomized comparative studies and one RCT were identified, yielding five studies with a total of 546 patients (ECIRS/mini-ECIRS,  = 277; PCNL/mini-PCNL,  = 269).

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With a 5-year stone recurrence rate of 30% to 50%, kidney stone formers are subject to significant morbidity that negatively impacts their health-related quality of life (HRQOL). We sought to determine the impact of age at kidney stone onset, duration of stone disease, and kidney stone event (surgery or stone passage) on HRQOL of individual patients by querying the validated and prospectively collected Wisconsin Stone Quality of Life (WISQOL) database. Cross-sectional data were obtained from a total of 2438 kidney stone formers from 14 institutions in North America who completed the WISQOL questionnaire during the period from 2014 to 2019.

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For treatment of nephrolithiasis, ambulatory percutaneous nephrolithotomy (aPCNL) is growing in popularity for select patients. The aim of this study was to investigate the safety and efficacy of a set of aPCNL selection criteria as well as search for predictors of failed aPCNL resulting in inpatient admission. We reviewed all percutaneous nephrolithotomy (PCNL) patients from 2016 to 2020.

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The objective of this process improvement project was to determine the effect of enhanced recovery after surgery (ERAS) protocol for percutaneous nephrolithotomy (PCNL) patients with respect to quality of life (QOL) and pain management in the postoperative recovery period. An electronic-based medical record ERAS orders protocol for PCNL was instituted at an academic medical center in July 2020. The protocol utilized a pain control regimen designed to minimize opioid medication use postoperatively.

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There is a need to reliably render urolithiasis patients completely stone free with minimal morbidity. We report on the initial safety and feasibility with steerable ureteroscopic renal evacuation (SURE) in a prospective study using basket extraction as a comparison. A pilot randomized controlled study was conducted comparing SURE with basket extraction postlaser lithotripsy.

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Objective: To examine the effects of care fragmentation, or the engagement of different health care systems along the continuum of care, on patients with urinary stone disease.

Methods: All-payer data from the 2016 Healthcare Cost and Utilization Project (HCUP) State Databases from Florida (FL) and New York (NY) were used to identify a cohort of adult patients with an emergency department visit for a diagnosis of urolithiasis, who subsequently re-presented to an index or non-index hospital for renal colic and/or urological intervention. Patient demographics, regional data, and procedural information were collected and 30-day episode-based costs were calculated.

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Introduction: Although antibiotic therapy has been the mainstay of prophylaxis and treatment of urinary tract infections (UTIs), antibacterial resistance has led to increased incidence of infections and healthcare spending in both community-acquired and nosocomial UTIs. This has led to an active exploration of alternative remedies for both the prophylaxis and treatment of UTIs, especially in women with recurrent urinary tract infections. Probiotic supplementation is one novel intervention that has been studied as a prophylactic measure in patients with UTIs.

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