Evaluation of Nephrolithometric Scoring Systems to Predict Outcomes of Retrograde Intrarenal Surgery.

Evaluation of Nephrolithometric Scoring Systems to Predict Outcomes of Retrograde Intrarenal Surgery. Urol J. 2020 Jan 04;: Authors: Karsiyakali N, Karabay E, Erkan E, Kadihasanoglu M Abstract PURPOSE: The aim of the study was to evaluate the predictive value of nephrolithometric scoring systems used to predict the complexity of renal stones for the outcomes of retrograde intrarenal surgery (RIRS). MATERIALS AND METHODS: A total of 81 patients who underwent RIRS for nephrolithiasis between January 2013 and October 2017 were reviewed in this retrospective study. Guy's Stone Score (GSS), the S.T.O.N.E., Clinical Research Office of the Endourologic Society (CROES), and Seoul National University Renal Stone Complexity (S-ReSC) nephrolithometry scores were assessed by same researcher for each patient from preoperative non-contrast enhanced computed tomography scans. These nephrolithometric scores, stone characteristics and complications were compared in patients with/without residual stone. RESULTS: The median (IQR) age of patients (37 female/44 male) was 45 (20) years. The median (IQR) stone burden was 139.4 (125.4) mm2 and the mean Hounsfield unit (HU) value was 1034.46±239.56. The stone burden, S.T.O.N.E. and S-ReSC scores were statistically significantly higher and the CROES score was significantly lower in patients with a residual stone (p
Source: Urology Journal - Category: Urology & Nephrology Authors: Tags: Urol J Source Type: research

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CT procedure volume has reached an all-time high in the U.S., hitting an estimated...Read more on AuntMinnie.comRelated Reading: Could cold, hard cash reduce unnecessary head CT scans? Concerns grow over CT radiation for kidney stones Emergency CT usage rate soars for urinary stones Head CT offers low diagnostic yield for fainting Adult hospitals overuse CT for appendicitis in kids
Source: AuntMinnie.com Headlines - Category: Radiology Source Type: news
Conclusion: The 3D-guided approach to PNL facilitates the preoperative planning of the puncture with better knowledge of the renal anatomy and may be helpful to reduce operative time and improve the learning curve.
Source: International Braz J Urol - Category: Urology & Nephrology Source Type: research
CONCLUSIONS: The incidence of de novo nephrolithiasis in ESRD patients on HD was 10.5%. Increased serum uric acid, decreased serum magnesium and ionized calcium, and absence of hypertension were associated with increased stone-formation in ESRD patients on HD. PMID: 31793861 [PubMed - as supplied by publisher]
Source: Canadian Urological Association Journal - Category: Urology & Nephrology Authors: Tags: Can Urol Assoc J Source Type: research
This article describes a patient who was found to have a renocolic fistula on antegrade percutaneous nephrostogram. The patient was treated with a laparoscopic nephrectomy and minimally invasive colon repair and recovered.
Source: Journal of the American Academy of Physician Assistants - Category: Primary Care Tags: Case Report Source Type: research
Led by a Yale professor, a team of researchers has engaged in a consensus process to determine when and how CT scans should be used to diagnose renal colic.
Source: Yale Science and Health News - Category: Universities & Medical Training Source Type: news
AbstractPurposeTo investigate the accuracy of rapid kV-switching single-source dual-energy computed tomography (rsDECT) for prediction of classes of non-uric-acid stones.Materials and methodsNon-uric-acid renal stones retrieved via percutaneous nephrolithotomy were prospectively collected between January 2017 and February 2018 in a single institution. Only stones  ≥ 5 mm and with pure composition (i.e., ≥ 80% composed of one component) were included. Stone composition was determined using Fourier Transform Infrared Spectroscopy. The stones were scanned in 32-cm-wide anthropomorphic wh...
Source: Abdominal Imaging - Category: Radiology Source Type: research
We thank the authors of this editorial for their very thoughtful comments. They are correct that the use of low dose CT (LDCT) scan can significantly reduce the radiation dose associated with kidney stone management. The sensitivity of LDCT for nephrolithiasis is well-established and comparable to that of standard dose CT scan (SDCT), especially in nonobese patients.1 Unfortunately, while the technology is available, limited evidence exists that widespread adoption of LDCT has occurred, especially in the emergency department setting where a significant percentage of imaging for nephrolithiasis is performed.
Source: Urology - Category: Urology & Nephrology Authors: Source Type: research
If you’ve been diagnosed with kidney stones (urolithiasis), you may have several options for treatment. These include medical therapy, extracorporeal shock wave lithotripsy (ESWL), percutaneous nephrolithotripsy (PCNL), and ureteroscopy. A brief anatomy of the urinary tract The urinary tract includes kidneys (two organs that filter waste and extra water from the blood) ureters (two tubes bringing urine from each kidney to the bladder) bladder (organ that collects urine) urethra (a single tube through which urine in the bladder passes out of the body). The evaluation for kidney stones If your symptoms suggest kidney...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Kidney and urinary tract Men's Health Women's Health Source Type: blogs
A man with a history of nephrolithiasis and laparotomy for trauma had left flank and left upper quadrant pain. He had mild leukocytosis, but the physical examination and other laboratory testing were unremarkable; abdominal CT revealed a well-circumscribed, extraluminal mass with central high density. What is the diagnosis and what would you do next?
Source: JAMA - Journal of the American Medical Association - Category: General Medicine Source Type: research
AbstractPurposeDigital low-dosage, linear slot scanning radiography (Lodox®) is an imaging modality that can emit down to one-tenth the radiation of conventional X-ray systems. We prospectively evaluated Lodox® as a diagnostic imaging modality in patients with ureterolithiasis.MethodsConventional kidney –ureter–bladder (KUB) X-ray and Lodox® were performed in 41 patients presenting with acute flank pain due to unilateral ureteral stone confirmed by computed tomography. KUB X-ray and Lodox® images were then reviewed by four blinded readers (urology expert/resident, radiology expert/resident). Ide...
Source: World Journal of Urology - Category: Urology & Nephrology Source Type: research
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