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Ureterolithiasis

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https://www.readbyqxmd.com/read/29037128/predictive-value-of-secondary-signs-of-obstruction-in-follow-up-computed-tomography-of-ureteral-stones-a-study-with-dynamic-computed-tomography
#1
Klara Sahlén, Pär Dahlman, Einar Brekkan, Maria Lönnemark, Göran Sahlén, Monica Segelsjö, Anders Magnusson
OBJECTIVES: This study aimed to determine the ratio of obstruction and predictive values of secondary signs in follow-up computed tomography (CT) of ureterolithiasis patients; to correlate stone characteristics with obstruction; to compare enhancement of obstructed and non-obstructed kidneys; and to compare radiation dose of the dynamic CT protocol to an excretory-phase protocol. MATERIALS AND METHODS: This retrospective study assessed 49 follow-up CT scans of patients with remaining ureterolithiasis after a renal colic episode...
October 16, 2017: Scandinavian Journal of Urology
https://www.readbyqxmd.com/read/28992905/perioperative-occlusion-of-a-subcutaneous-ureteral-bypass-secondary-to-a-severe-pyonephrosis-in-a-birman-cat
#2
Bertrand Vedrine
A subcutaneous ureteral bypass (SUB) was placed in a 10-year-old Birman cat for management of unilateral ureterolithiasis. Perioperative occlusion of the nephrostomy tube of the SUB device happened secondary to a severe pyonephrosis. Flushing of the system throught the subcutaneous shunting port was made with saline solution after clamping the urinary bladder catheter. Repetitive flushing of the device was performed daily for 3 days to be sure of the remanent patency of the catheter. Repetitive flushing of the SUB device is a successful renal-sparing treatment for pyonephrosis in a cat and may be considered as an effective treatment option for this condition...
June 2017: Topics in Companion Animal Medicine
https://www.readbyqxmd.com/read/28853105/different-approaches-to-detect-nanobacteria-in-patients-with-kidney-stones-an-infectious-cause-or-a-subset-of-life
#3
Hani Ansari, Abbas Akhavan Sepahi, Mohsen Akhavan Sepahi
PURPOSE: This research focused on the detection of nanobacteria in kidney stones of 30 Iranian patients without adding fetal bovine serum (FBS) to the culture media. MATERIALS AND METHODS: Nanobacteria were isolated from a nephro-ureterolithiasis extract of the urinary tract and kidney of patients and were cultured in the laboratory. The growth of nanobacteria was monitored using a spectrophotometer, and with inverted microscopy technique, their crystallization was analyzed after two days...
August 29, 2017: Urology Journal
https://www.readbyqxmd.com/read/28845938/-questions-of-terminology-systematization-and-grading-of-complications-of-contact-ureteral-lithotripsy
#4
V V Dutov, V V Bazaev, E A Mamedov, S B Urenkov, A A Podoinitsyn
AIM: To investigate the advantages and disadvantages of the current variants of systematization and grading of complications of contact ureteral lithotripsy (CULT) and develop a working classification of CULT complications. MATERIALS AND METHODS: The study analyzed results of 545 fluoroscopy-guided endoscopic procedures performed at the MRRCI Clinic of Urology from 2008 to 2015 in 506 patients with ureterolithiasis. RESULTS: The proposed and implemented classification and terminology of CULT complications unifies the diagnostic and management algorithm...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28763282/comparison-between-double-pigtail-ureteral-stents-and-ureteral-bypass-devices-for-treatment-of-ureterolithiasis-in-cats
#5
Claire Deroy, Diego Rossetti, Guillaume Ragetly, Juan Hernandez, Cyrill Poncet
OBJECTIVE To compare the complication rates and outcomes in cats with ureteral obstruction treated by placement of double-pigtail ureteral stents or ureteral bypass (UB) devices. DESIGN Retrospective cohort study. ANIMALS Cats with unilateral or bilateral ureterolithiasis that received double-pigtail ureteral stents (30 stents in 27 cats; stent group) or UB devices (30 devices in 23 cats; UB group). PROCEDURES Medical records were reviewed to collect data on signalment, clinical signs, serum biochemical data, surgical procedure, duration of hospitalization, complications, and follow-up (≥ 6 months after placement) information...
August 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28702844/influence-of-acetylsalicylic-acid-and-low-molecular-weight-heparins-on-the-formation-of-renal-hematoma-after-shock-wave-lithotripsy
#6
Christoph Schregel, Hubert John, Marco Randazzo, Isabelle Keller
PURPOSE: To investigate the risk of renal hematoma (RHT) after shock wave lithotripsy (SWL) among patients on acetylsalicylic acid (ASA) or low-molecular-weight heparin (LMWH). PATIENTS AND METHODS: Retrospective analysis of 434 patients treated with SWL for nephrolithiasis and ureterolithiasis of the proximal ureter. Primary endpoint was detection of RHT by ultrasound the day after SWL. Secondary outcome variables included transfusion of erythrocyte concentrate(s), interventions, hospital readmission or death due to RHT within 30 days of SWL...
July 12, 2017: World Journal of Urology
https://www.readbyqxmd.com/read/28637368/emergency-ureteral-stone-treatment-score-predicts-outcomes-of-ureteroscopic-intervention-in-acute-obstructive-uropathy-secondary-to-urolithiasis
#7
Timothy Y Tran, Natalia Hernandez Bustos, Avinash Kambadakone, Brian Eisner, Gyan Pareek
INTRODUCTION: Immediate ureteroscopic treatment for patients presenting to the emergency room with symptomatic ureterolithiasis is more commonly being utilized. Recent reports demonstrate good efficacy for emergency ureteroscopy (URS); however, preoperative predictors of treatment success have not been described. In this study, we report our multicenter experience with emergency URS and identify predictors of successful treatment. We also describe the Emergency Ureteral Stone Treatment (EUST) score, which integrates these predictors and stratifies patients into those that are likely and unlikely to have successful treatment...
September 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28611901/a-comparison-of-urolithiasis-in-the-presence-and-absence-of-microscopic-hematuria-in-the-emergency-department
#8
Jason M Mefford, Robert M Tungate, Leila Amini, Dongjin Suh, Craig L Anderson, Scott E Rudkin, Megan Boysen-Osborn
INTRODUCTION: Urolithiasis is a common medical condition that accounts for a large number of emergency department (ED) visits each year and contributes significantly to annual healthcare costs. Urinalysis is an important screening test for patients presenting with symptoms suspicious for urolithiasis. At present there is a paucity of medical literature examining the characteristics of ureteral stones in patients who have microscopic hematuria on urinalysis versus those who do not. The purpose of this study was to examine mean ureteral stone size and its relationship to the incidence of clinically significant hydronephrosis in patients with and without microscopic hematuria...
June 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28513524/ureterolithiasis-management-in-an-environment-with-limited-facilities
#9
C A Odoemene, Pcn Okere, M C Ugonabo
BACKGROUND: In the past 2-3 decades, there has been a dramatic development in the techniques of stone removal. This study highlights the management of symptomatic ureteral stones in an environment without such facilities. MATERIALS AND METHODS: Sixty-nine patients, comprising 53 (76.8%) males and 16 (23.2%) females, diagnosed of symptomatic ureteric calculi within the study period in two tertiary health institutions were included in the study. Thorough history taking and physical examinations were performed...
May 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28291706/medical-expulsive-therapy-use-in-emergency-department-patients-diagnosed-with-ureteral-stones
#10
Ralph C Wang, Newton Addo, Thomas Chi, Christopher Moore, Michael Mallin, Stephen Shiboski, Marshall Stoller, Rebecca Smith-Bindman
OBJECTIVE: Recent studies have clarified the role of alpha-blockers, such as tamsulosin, for patients diagnosed with ureteral stones <10mm not requiring an urgent intervention. Prior studies have reported low rates of use of MET by emergency physicians. We sought to describe patterns of alpha-blocker use and to determine factors associated with utilization in patients diagnosed with ureterolithiasis in the ED. METHODS: We used data from a randomized trial of CT scan vs...
August 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28263109/glomerular-filtration-rate-determination-by-computed-tomography-in-two-pet-rabbits-with-renal-disease
#11
Graham Zoller, Isabelle Langlois, Kate Alexander
CASE DESCRIPTION A 3-year-old and a 7-year-old spayed female rabbit (Oryctolagus cuniculus) were evaluated because of digestive stasis associated with renal asymmetry. CLINICAL FINDINGS Neoplasia of the right kidney was diagnosed via cytologic analysis in the 3-year-old rabbit. Ureterolithiasis of the left kidney was diagnosed via abdominal ultrasonography in the 7-year-old rabbit. To evaluate whether unilateral nephrectomy was indicated, evaluation of glomerular filtration rate by dynamic CT (CT-GFR) was performed on both rabbits...
March 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28248059/-extracorporeal-and-contact-lithotripsy-for-large-ureteral-stones
#12
M I Kogan, I I Belousov, Akef Maarouf Yassine Akef Maarouf Yassine
Expert panels of AUA and EAU defined highly effective approaches to surgical treatment of ureterolithiasis and recommended extracorporeal and contact lithotripsy as the main options. Therapeutic strategy for ureteral stones measuring less than 10 mm is clearly defined and supported by the Russian Society of Urology. At the same time, the views of researchers on the management of large ureteral stones vary. This literature review provides information on the results of extracorporeal shock-wave lithotripsy and contact ureterolithotripsy of large stones located in various parts of the ureter...
December 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28185689/imaging-of-acute-pelvic-pain-in-girls-ovarian-torsion-and-beyond-%C3%A2
#13
REVIEW
Lena Naffaa, Tejaswini Deshmukh, Shanthan Tumu, Chris Johnson, Kevin P Boyd, Arthur B Meyers
Identifying the etiology of acute pelvic pain in girls is often clinically challenging. Particularly in young girls, it is often difficult to determine if acute pelvic symptoms are originating from a gynecologic source or from a genitourinary or gastrointestinal etiology based on the child's clinical examination alone. Therefore, imaging plays a key role in establishing a diagnosis and in directing medical and surgical treatment. Pediatric gynecologic conditions, which can present acutely with pain or mass or both include ovarian torsion, hematometrocolpos, pelvic inflammatory disease, inguinal hernias containing an ovary or the uterus or both, adnexal cysts, pregnancy, vaginal foreign bodies, and ovarian vein thrombosis...
July 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/28069871/spontaneous-proximal-ureteric-rupture-secondary-to-ureterolithiasis
#14
Keith Pace, Karl Spiteri, Karl German
We present the case of a 37-year-old lady who presented with severe colicky left sided flank pain associated with vomiting, chills and rigors. A non-contrast Computed Tomography of the Kidney Ureter and Bladder was performed which showed a 2-3 mm stone in the pelvic part of the left ureter. Following 2 days of conservative treatment she was still complaining of increasingly severe pain. A contrast computed tomography of the abdomen was performed which was suggestive of a perforation of the left collecting system...
January 9, 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28048915/su-f-i-29-investigating-the-impact-of-the-amount-of-contrast-material-used-in-abdominal-ct-examinations-regarding-the-diagnosis-of-appendicolith
#15
E Lavdas, N Boci, L Sarantaenna, A Godevenos, I Ntavelis, T Theodoropoulos, G Zaimis, P Mavroidis
PURPOSE: The purpose of this study is to report the case of a young adult in which the incomplete oral administration of contrast material led to diagnosis of an appendicolith, which cause acute appendicitis. METHODS: A male 34 years old underwent CT examination due to acute abdominal pain in the upper abdomen. An ultrasound examination of the upper abdomen and kidneys, an x-ray examination of the abdomen and a CT scan of the entire abdomen and pelvis after both oral and IV administration of contrast material were performed...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046001/the-diagnosis-and-management-of-patients-with-renal-colic-across-a-sample-of-us-hospitals-high-ct-utilization-despite-low-rates-of-admission-and-inpatient-urologic-intervention
#16
MULTICENTER STUDY
Elizabeth M Schoenfeld, Penelope S Pekow, Meng-Shiou Shieh, Charles D Scales, Tara Lagu, Peter K Lindenauer
OBJECTIVES: Symptomatic ureterolithiasis (renal colic) is a common Emergency Department (ED) complaint. Variation in practice surrounding the diagnosis and management of suspected renal colic could have substantial implications for both quality and cost of care as well as patient radiation burden. Previous literature has suggested that CT scanning has increased with no improvements in outcome, owing at least partially to the spontaneous passage of kidney stones in the majority of patients...
2017: PloS One
https://www.readbyqxmd.com/read/27670877/comparison-of-prone-vs-supine%C3%A2-unenhanced-ct-imaging-in-patients-with-clinically-suspected-ureterolithiasis
#17
Matthias Meissnitzer, Thomas Meissnitzer, Stephan Hruby, Stefan Hecht, Andreas Gutzeit, Laura Holzer-Frühwald, Klaus Hergan, Rosemarie Forstner
PURPOSE: To retrospectively evaluate whether prone CT scanning is superior to supine scanning for correct localization of distal urinary calculi in patients with acute flank pain. METHODS: Consecutively performed unenhanced CT scans in patients with acute flank pain were retrospectively analyzed in 150 patients in supine and another 150 patients in prone position. Images were reviewed by two radiologists on consensus. Findings in both groups were compared using two-sided Fisher Exact tests and Wilcoxon-Mann-Whitney test...
February 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/27529029/overview-of-point-of-care-abdominal-ultrasound-in-emergency-and-critical-care
#18
REVIEW
Toru Kameda, Nobuyuki Taniguchi
Point-of-care abdominal ultrasound (US), which is performed by clinicians at bedside, is increasingly being used to evaluate clinical manifestations, to facilitate accurate diagnoses, and to assist procedures in emergency and critical care. Methods for the assessment of acute abdominal pain with point-of-care US must be developed according to accumulated evidence in each abdominal region. To detect hemoperitoneum, the methodology of a focused assessment with sonography for a trauma examination may also be an option in non-trauma patients...
2016: Journal of Intensive Care
https://www.readbyqxmd.com/read/27453647/procalcitonin-is-a-strong-predictor-of-urine-culture-results-in-patients-with-obstructing-ureteral-stones-a-prospective-pilot-study
#19
Dimitri Papagiannopoulos, Patrick Whelan, Waseem Ahmad, James Rybak, Bala Hota, Leslie Deane, Ajay Nehra
PURPOSE: The appropriate management of infected obstructing ureteral calculi is prompt genitourinary decompression. Urine cultures are the gold standard for confirming infection but often take 24-48 h to result. Although white blood cell (WBC) count is an important diagnostic laboratory test, it is a nonspecific inflammatory marker. Similarly, urinalysis (UA) can be misleading in the setting of a contaminated sample, bladder colonization, or in cases of a completely obstructed the upper urinary tract...
July 2016: Urology Annals
https://www.readbyqxmd.com/read/27403369/management-of-ureterolithiasis-in-a-patient-with-crossed-unfused-renal-ectopia
#20
Koichi Kodama, Yasukazu Takase, Hiroki Tatsu
Crossed renal ectopia is a rare congenital anomaly in which both kidneys are situated on one side and fused together in 85%-90% of cases. The management of urinary calculi in patients with crossed renal ectopia continues to pose challenges to urologists because the aberrant anatomy may make access and clearance of the calculi more difficult to accomplish. Here, we report a case of inferior crossed renal ectopia, without fusion, and a ureteral stone in which the patient was treated successfully by extracorporeal shock wave lithotripsy...
2016: Case Reports in Urology
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