A5027043847- Kidney Stones and Urolithiasis Treatments
- Pediatric Urology and Nephrology Studies
- Ureteral procedures and complications
- Radiation Dose and Imaging
- Renal and Vascular Pathologies
- Urological Disorders and Treatments
- Therapeutic Uses of Natural Elements
- Urinary Bladder and Prostate Research
- Paleopathology and ancient diseases
- Prostate Cancer Diagnosis and Treatment
- Biomedical Research and Pathophysiology
- Porphyrin Metabolism and Disorders
- Pelvic floor disorders treatments
- Healthcare Policy and Management
- Urinary Tract Infections Management
- Gout, Hyperuricemia, Uric Acid
- Glaucoma and retinal disorders
- Urologic and reproductive health conditions
- Gallbladder and Bile Duct Disorders
- Organ Donation and Transplantation
- Prostate Cancer Treatment and Research
- Renal function and acid-base balance
- Parathyroid Disorders and Treatments
- Renal and related cancers
- Bladder and Urothelial Cancer Treatments
University of California, San Francisco
2016-2025
University of Alabama at Birmingham
2025
Seattle University
2016-2020
Communities In Schools of Orange County
2020
Columbia College - South Carolina
2020
Madison Group (United States)
2020
Hershey (United States)
2020
California State University, Sacramento
2020
American Urological Association
2019
University of San Francisco
2019
Results of previous studies have strongly indicated that the prevalence elevated intraocular pressure is greater in blacks than whites and are more susceptible to glaucomatous damage at any given level pressure. It has also been suggested a larger disc area might predispose an eye damage. We investigated possibility clinically quantifiable differences exist optic parameters between normotensive white black patients. Disc area, cup-to-disc ratio, cup volume measured with video-ophthalmograph...
No AccessJournal of UrologyAdult Urology1 May 2012Impact Nutritional Factors on Incident Kidney Stone Formation: A Report From the WHI OS Mathew D. Sorensen, Arnold J. Kahn, Alex P. Reiner, Timothy Y. Tseng, James M. Shikany, Robert B. Wallace, Thomas Chi, Jean Wactawski-Wende, Rebecca Jackson, Mary Jo O'Sullivan, Natalia Sadetsky, Marshall L. Stoller, and Working Group SorensenMathew Sorensen Department Urology, School Medicine, University Washington, Seattle, Washington More articles by...
Obesity is a strong risk factor for nephrolithiasis, but the role of physical activity and caloric intake remains poorly understood. We evaluated this relationship in 84,225 women with no history stones as part Women’s Health Initiative Observational Study, longitudinal, prospective cohort postmenopausal enrolled from 1993 to 1998 8 years’ median follow-up. The independent association (metabolic equivalents [METs]/wk), calibrated dietary energy intake, body mass index (BMI) incident kidney...
We present our management of urethral stenosis and rectourinary fistula resulting from prostate cancer therapy. concentrated on cases refractory to minimally invasive treatment, such as dilation, urethrotomy, urinary and/or fecal diversion.In prospectively collected reconstruction database we identified patients who underwent or also received prior treatment for cancer. documented demographics, pretreatment characteristics, therapy type, type success.A total 48 met the inclusion criteria,...
We evaluated the relationship between dietary fiber, fruit and vegetable intake, risk of kidney stone formation.
LithoVue™ is a novel, single-use, digital flexible ureteroscope that was released to the US market in January 2016. There are scant data regarding its performance humans. Procedural outcomes comparing LithoVue with reusable ureteroscopes presented patients undergoing ureteroscopy for upper urinary tract pathology.
Ectopic calcification is a driving force for variety of diseases, including kidney stones and atherosclerosis, but initiating factors remain largely unknown. Given its importance in seemingly divergent disease processes, identifying fundamental principal actors ectopic may have broad translational significance. Here we establish Drosophila melanogaster model by inhibiting xanthine dehydrogenase whose deficiency leads to humans dogs. Micro X-ray absorption near edge spectroscopy (μXANES)...
Introduction: Reusable ureteroscope durability and need for repair are significant sources of expense inefficiency patients urologists. Utilization LithoVue™, a disposable flexible digital ureteroscope, may address some these concerns. To identify its economic impact on clinical care, we performed micro-cost comparison between reusable fiberoptic ureteroscopes (URF-P6™) LithoVue. Patients Methods: For this prospective, single-center micro-costing study, all consecutive ureteroscopies during...
Objectives To identify associations between 24‐h urine abnormalities and clinical risk factors for recurrent stone formers. Patients methods The Registry Stones of the Kidney Ureter was queried all patients who underwent studies. were categorised by number disease. Stone recurrence calculated events per person‐year. We utilised a novel method to calculate an overall severity score parameters. urinary analyte values then compared using Student's t ‐tests, chi‐square analysis negative binomial...
No AccessJournal of UrologyAdult Urology1 Sep 2015Laparoscopic Nephrectomy with Autotransplantation: Safety, Efficacy and Long-Term Durability Geraldine Tran, Krishna Ramaswamy, Thomas Chi, Maxwell Meng, Christopher Freise, Marshall L. Stoller TranGeraldine Tran School Medicine, University California, San Francisco, California Equal study contribution. More articles by this author , RamaswamyKrishna Ramaswamy Department Urology, ChiThomas Chi Financial interest and/or other relationship Bard...
Ultrasound-guided renal access for percutaneous nephrolithotomy (PCNL) is a safe, effective, and low-cost procedure commonly performed worldwide, but technique underutilized by urologists in the United States. The purpose of this article to familiarize practicing urologist with methods ultrasound guidance access. We discuss two alternative techniques gaining PCNL under guidance. also describe novel using puncture needle reposition residual stone fragments avoid additional tract dilation....
Purpose: Nephrolithiasis is an increasingly common ailment in the United States. Ureteroscopic management has supplanted shockwave lithotripsy as most treatment of upper tract stone disease. Ureteral stricture a rare but serious complication disease and its management. The impact new technologies more widespread ureteroscopic on rates unknown. We describe our experience managing strictures incurred following ureteroscopy for Materials Methods: Records patients managed at four tertiary care...
To define the learning curve associated with adopting ultrasound guidance for prone percutaneous nephrolithotomy (PCNL) experienced surgeon.A prospective cohort study of consecutive patients undergoing PCNL renal tract access and dilation was performed. Clinical data reviewed included success in gaining guidance, total fluoroscopic screening time, radiation exposure dose. cases performed matched stone size served as control cases.One hundred ultrasound-guided procedures by a single...
Elevated uric acid (UA) is a key risk factor for many disorders, including metabolic syndrome, gout and kidney stones. Despite frequent occurrence of these the genetic pathways influencing UA metabolism association with disease remain poorly understood. In humans, elevated levels resulted from loss urate oxidase (Uro) gene around 15 million years ago. Therefore, we established Drosophila melanogaster model reduced expression orthologous Uro to study pathogenesis arising UA. Reduced in...
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.
No AccessJournal of UrologyAdult Urology1 Apr 2016Coronary Artery Calcium Score and Association with Recurrent Nephrolithiasis: The Multi-Ethnic Study Atherosclerosis Ryan S. Hsi, Andrew J. Spieker, Marshall L. Stoller, David R. Jacobs, Alex P. Reiner, Robyn McClelland, Arnold Kahn, Thomas Chi, Moyses Szklo, Mathew D. Sorensen HsiRyan Hsi Department Urology, School Medicine, University Washington, Seattle, Washington , SpiekerAndrew Spieker Biostatistics, StollerMarshall Stoller...