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https://www.readbyqxmd.com/read/27903253/developing-a-preoperative-predictive-model-for-ureteral-length-for-ureteral-stent-insertion
#1
Takashi Kawahara, Kentaro Sakamaki, Hiroki Ito, Shinnosuke Kuroda, Hideyuki Terao, Kazuhide Makiyama, Hiroji Uemura, Masahiro Yao, Hiroshi Miyamoto, Junichi Matsuzaki
BACKGROUND: Ureteral stenting has been a fundamental part of various urological procedures. Selecting a ureteral stent of optimal length is important for decreasing the incidence of stent migration and complications. The aim of the present study was to develop and internally validate a model for predicting the ureteral length for ureteral stent insertion. METHODS: This study included a total of 127 patients whose ureters had previously been assessed by both intravenous urography (IVU) and CT scan...
November 30, 2016: BMC Urology
https://www.readbyqxmd.com/read/27790508/role-of-urinary-and-serum-carbohydrate-antigen-19-9-as-a-biomarker-in-diagnosis-of-adult-giant-hydronephrosis
#2
Indraneel Banerjee, Vinay Tomar, Sher Singh Yadav, Nachiket Vyas, Suresh Yadav, Brijesh Sathian
INTRODUCTION: The most common cause of adult Giant Hydronephrosis (GH) is congenital Uretero-Pelvic Junction (UPJ) obstruction. Conventional imaging modalities, like Intravenous Urography (IVU) and Computed Tomography Urography (CTU) and radionuclide renal scan can be fallacious. Serum carbohydrate antigen 19-9 (CA19-9) is a useful tumour marker for gastrointestinal and pancreatic cancer. Only a few studies and case reports have shown raised serum levels due to benign hydronephrosis and GH...
September 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27695208/comparison-of-intravenous-urography-and-magnetic-resonance-urography-in-preoperative-evaluation-of-pelvi-ureteric-junction-obstruction-in-children
#3
Alok Sharma, Kushaljit Singh Sodhi, Akshay Kumar Saxena, Anmol Bhatia, Prema Menon, Katragadda L N Rao, Niranjan Khandelwal
AIMS: To compare intravenous urography (IVU) and magnetic resonance urography (MRU) in the preoperative evaluation of pelvi-ureteric junction obstruction (PUJO) in children. MATERIALS AND METHODS: A total of 35 children up to 10 years of age in whom unilateral or bilateral PUJO were suspected on ultrasonography were enrolled in this prospective study. All children underwent IVU and MRU, and the findings were compared. RESULTS: Of the 70 kidneys evaluated, 14 (20%) were not visualized on IVU because of nonexcretion of contrast, whereas all the 70 (100%) kidneys were visualized on MRU...
October 2016: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/27598032/treatment-of-ureteral-fibroepithelial-polyp-by-ureteroscopy-combined-with-holmium-laser-or-thulium-laser-a-retrospective-study
#4
Lu Sheng, Zhong-Yun Zhang, Wei-Qing Qian, Hao-Jie Zhang, Zhong-Quan Sun
BACKGROUND AND OBJECTIVE: Ureteral fibroepithelial polyps (UFPs) are rare benign tumors and ureteroscopy has been used for treatment. We compared the effect of UFP by ureteroscopy combined with holmium laser or thulium laser. METHODS: Twenty-five patients with UFPs were treated in our hospital between May 2003 and April 2013. All patients received ultrasound check and intravenous urography (IVU). We performed ureteroscopy operation and found ureteral polyps, so we resected the polyps with holmium laser (12 cases) or thulium laser (13 cases)...
October 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27516821/-clinical-and-therapeutic-aspects-of-pyelo-ureteral-junction-abnormalities-at-the-university-hospital-of-point-g
#5
Aly Tembely, Amadou Kassogué, Honoré Berthé, Zanafon Ouattara
This study is meant to analyze the clinical and therapeutic aspects of abnormalities ureteropelvic junction. Cross-sectional and descriptive study on 35 cases of abnormalities of the AUPJ collected the Urology Department of the University Hospital of Point G for a period of 4 years (January 2010 to December 2014). Data were collected on the survey forms, medical records and records of the block. The socio-demographic, clinical and therapeutic data were entered into Microsoft Word 2007 and Excel 2007 and analyzed on SPSS 18...
2016: Pan African Medical Journal
https://www.readbyqxmd.com/read/27509373/minimally-invasive-percutaneous-nephrolithotomy-guided-by-ultrasonography-to-treat-upper-urinary-tract-calculi-complicated-with-severe-spinal-deformity
#6
Zhaohui He, Caixia Zhang, Guohua Zeng
OBJECTIVE: To report our experience of minimally invasive percutaneous nephrolithotomy(MPCNL) in managing upper urinary tract calculi complicated with severe spinal deformity. MATERIALS AND METHODS: Between August 2001 to December 2012, 16 upper urinary calculi in 13 patients with severe spinal deformity were treated by MPCNL. Preoperative investigation of the respiratory function, evaluation of anatomy by intravenous uro¬graphy (IVU) and CT scan, and preoperative kidney ultrasonagraphy with simulation of the percutaneous puncture were performed in all patients...
August 10, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27370363/comparison-between-pentacam-hr-and-optical-coherence-tomographycentral-corneal-thickness-measurements-in-healthy-feline-eyes
#7
Allison M Cleymaet, Ann M Hess, Kate S Freeman
OBJECTIVES: To measure the central corneal thickness (CCT) in healthy feline eyes with Scheimpflug imaging (Pentacam, Pentacam(®) -HR) and to compare these values with those obtained with spectral-domain optical coherence tomography (OCT, Optovue(®) iVue). ANIMALS STUDIED: Thirty one sedated Domestic Short-haired cats. PROCEDURES: Two repeated CCT measurements were obtained from both eyes using Pentacam measured at the pupil center and corneal apex (CCTpupil and CCTapex ) and using SD-OCT (CCTOCT )...
July 2016: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27050349/anterior-and-posterior-segment-parameters-measured-with-fourier-domain-optical-coherence-tomography-in-photopic-and-scotopic-conditions
#8
Nishanee Rampersad, Rekha Hansraj
PURPOSE: To compare anterior and posterior segment parameters measured with the iVue-100 optical coherence tomography (OCT) in photopic and scotopic conditions. METHODS: Central and peripheral corneal thickness, retinal nerve fiber layer and macula thickness were measured using the iVue-100 OCT in 47 healthy individuals at a higher education institution in photopic (958 lux) and scotopic (0.03 lux) conditions. RESULTS: As the lighting conditions changed from scotopic to photopic, a significant change in pupil size was noted (P < 0...
February 2016: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/27011210/identification-of-anterior-chamber-angle-parameters-with-a-portable-sd-oct-device-compared-to-a-non-portable-sd-oct
#9
Handan Akil, Kenneth Marion, Anna Dastiridou, Dennis Jenkins, Brendan Kramer, Brian A Francis, Vikas Chopra
The aim of this study is to compare a portable spectral domain optical coherence tomography (SD-OCT) device with a non-portable SD-OCT for the identification of anterior chamber angle parameters based on location of Schwalbe's line (SL) and to measure their reproducibility. 99 eyes from 46 normal, healthy participants underwent imaging of the inferior iridocorneal angle with the iVue and Cirrus SD-OCT under well-controlled low-light conditions. SL-angle opening distance (SL-AOD) and SL-trabecular iris space area (SL-TISA) were measured by masked, certified graders at the Doheny Image Reading Center using customized Image J grading software...
March 24, 2016: International Ophthalmology
https://www.readbyqxmd.com/read/26981593/radiation-dosing-in-the-investigation-and-follow-up-of-urolithiasis-comparison-between-historical-and-contemporary-practices
#10
Dermot O'Kane, Frank T D'Arcy, Nathan Papa, Neil Smith, Scott McClintock, Nathan Lawrentschuk, Damien M Bolton
PURPOSE: Computed tomography (CT) is the gold standard imaging modality for the diagnosis and follow-up of urolithiasis. Before the use of CT, intravenous urography (IVU) was the imaging modality of choice. CT remains contentious because of the cancer risk related to radiation exposure above a threshold level. We aimed to compare the radiation exposure dose to the average patient with urolithiasis in the era of CT with that of IVU. MATERIALS AND METHODS: Our hospital medical records database was searched for patients who presented to the Emergency Department over a 1-month period in 1990 with a diagnosis of renal colic...
March 2016: Investigative and Clinical Urology
https://www.readbyqxmd.com/read/26951922/outcome-analysis-of-pediatric-pyeloplasty-in-units-with-less-than-20-differential-renal-function
#11
Prema Menon, Katragadda Lakshmi Narasimha Rao, Anish Bhattacharya, Bhagwant R Mittal
OBJECTIVE: This study was conducted to assess ureteropelvic junction obstruction (UPJO) units with differential renal function (DRF) ≤20%, 3 months post-pyeloplasty as well as complications and stability of function in long term follow up. MATERIAL AND METHODS: In this prospective study, children below 12 years age with unilateral UPJO and DRF ≤20% undergoing open Anderson-Hynes dismembered pyeloplasty from 2002-2014 excluding associated vesicoureteric reflux were included...
June 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/26882478/intraoperative-oct-pachymetry-in-patients-undergoing-dextran-free-riboflavin-uva-accelerated-corneal-collagen-crosslinking
#12
Miguel Rechichi, Cosimo Mazzotta, Sheraz Daya, Rita Mencucci, Michele Lanza, Alessandro Meduri
PURPOSE: To assess intraoperative corneal pachymetry in patients undergoing accelerated corneal collagen crosslinking with a dextran-free riboflavin solution. METHODS: Prospective, non-comparative, multicenter interventional study. Thirty patients with progressive keratoconus were enrolled in the study from the Siena Crosslinking Center™ in Siena, Italy and the Eye Center in Catanzaro, Italy. The mean age was 26.9 ± 6.5 years. Patients underwent pulsed light accelerated crosslinking (PL-ACXL) by KXL I UV-A source (Avedro Inc...
February 16, 2016: Current Eye Research
https://www.readbyqxmd.com/read/26881058/novice-reviewers-retain-high-sensitivity-and-specificity-of-posterior-segment-disease-identification-with-iwellnessexam%C3%A2
#13
Samantha Slotnick, Catherine Awad, Sanjeev Nath, Jerome Sherman
Introduction. Four novices to Spectral Domain Optical Coherence Tomography (SD-OCT) image review were provided a brief lecture on the interpretation of iVue iWellnessExam™ findings (available on iVue® SD-OCT, Optovue, Inc., Fremont, CA). For a cohort of 126 (Confirmed) Normal, 101 (Confirmed) Disease subjects, iWellnessExam™ OD, OS, and OU reports were provided. Each novice independently reviewed and sorted the subjects into one of four categories: normal, retinal disease, optic nerve (ON) disease, and retinal + ON disease...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/26747433/congenital-anatomic-variants-of-the-kidney-and-ureter-a-pictorial-essay
#14
M R Srinivas, K M Adarsh, Riya Jeeson, C Ashwini, B R Nagaraj
Congenital renal parenchymal and pelvicalyceal abnormalities have a wide spectrum. Most of them are asymptomatic, like that of ectopia, cross fused kidney, horseshoe kidney, etc., while a few of them become complicated, leading to renal failure and death. It is very important for the radiologist to identify these anatomic variants and guide the clinicians for surgical and therapeutic procedures. Cross-sectional imaging with a volume rendered technique/maximum intensity projection has overcome ultrasonography and IVU for identification and interpretation of some of these variants...
March 2016: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/26689518/mini-incision-open-pyeloplasty-improvement-in-patient-outcome
#15
Vishwajeet Singh, Manish Garg, Pradeep Sharma, Rahul Janak Sinha, Manoj Kumar
PURPOSE: To assess the subjective and objective outcomes of mini-incision dismembered Anderson-Hynes pyeloplasty in the treatment of primary ureteropelvic junction obstruction (UPJO). MATERIALS AND METHODS: Between January 2008 to January 2013, Anderson-Hynes pyeloplasty was performed in 71 patients diagnosed with primary UPJO. Small subcostal muscle splitting incision was used in all cases. Sixteen patients with renal calculi underwent concomitant pyelolithotomy...
September 2015: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/26576150/ureteral-dilatation-with-no-apparent-cause-on-intravenous-urography-normal-or-abnormal-a-pilot-study
#16
Vinita Rathi, Sachin Agrawal, Shuchi Bhatt, Naveen Sharma
A pilot study was done in 18 adults to assess the significance of ureteral dilatation having no apparent cause seen on Intravenous Urography (IVU). A clinicoradiological evaluation was undertaken to evaluate the cause of ureteral dilatation, including laboratory investigations and sonography of the genitourinary tract. This was followed, if required, by CT Urography (using a modified technique). In 9 out of 18 cases, the cause of ureteral dilatation on laboratory investigations was urinary tract infection (6) and tuberculosis (3)...
2015: Advances in Urology
https://www.readbyqxmd.com/read/26568880/effective-radiation-exposure-evaluation-during-a-one-year-follow-up-of-urolithiasis-patients-after-extracorporeal-shock-wave-lithotripsy
#17
Mehmet Kaynar, Erdem Tekinarslan, Suat Keskin, İbrahim Buldu, Mehmet Giray Sönmez, Tuna Karatag, Mustafa Okan Istanbulluoglu
INTRODUCTION: To determine and evaluate the effective radiation exposure during a one year follow-up of urolithiasis patients following the SWL (extracorporeal shock wave lithotripsy) treatment. MATERIAL AND METHODS: Total Effective Radiation Exposure (ERE) doses for each of the 129 patients: 44 kidney stone patients, 41 ureter stone patients, and 44 multiple stone location patients were calculated by adding up the radiation doses of each ionizing radiation session including images (IVU, KUB, CT) throughout a one year follow-up period following the SWL...
2015: Central European Journal of Urology
https://www.readbyqxmd.com/read/26558014/does-the-afferent-tubular-segment-in-an-orthotopic-bladder-substitution-compromise-ureteric-antireflux-properties-an-experimental-study-in-dogs
#18
Hassan Abol-Enein, Nuzhat Faruqui, Nashwa Barakat, Ahmed A Shokeir
OBJECTIVE: To study the effects of a short ureter on renal function and histology in an orthotopic bladder substitution model using a long afferent limb, in a canine model. MATERIALS AND METHODS: The study included nine adult mongrel dogs. A 40-cm segment of ileum was isolated, the distal half detubularized, configured into a U-shape and sutured to form a flat plate; this was then used to augment the bladder. The proximal half of the isolated ileum remained in continuity with the enterocystoplasty to form an isoperistaltic ileal 'chimney'...
June 2012: Arab Journal of Urology
https://www.readbyqxmd.com/read/26421303/usefulness-of-nonenhanced-computed-tomography-for-diagnosing-urolithiasis-without-pyuria-in-the-emergency-department
#19
Dong Hoon Lee, In Ho Chang, Jin Wook Kim, Byung Hoon Chi, Sung Bin Park
We compared the clinical utility of nonenhanced computed tomography (NECT) and intravenous urography (IVU) in patients with classic symptoms of renal colic without evidence of a urine infection. This was a retrospective analysis of IVU and NECT performed in adult patients with suspected renal colic at an emergency department between January 2005 and December 2013. The records of all patients in NECT and IVU groups were reviewed, and the patients were categorized according to the cause of their symptoms. A total of 2218 patients were enrolled...
2015: BioMed Research International
https://www.readbyqxmd.com/read/26411836/diagnostic-accuracy-of-technologies-for-glaucoma-case-finding-in-a-community-setting
#20
Priya L Dabasia, Bruno R Fidalgo, David F Edgar, David F Garway-Heath, John G Lawrenson
PURPOSE: To assess case-finding performance of the Frequency Doubling Technology Perimeter (FDT) (Carl Zeiss Meditec, Inc., Dublin, CA), Moorfields Motion Displacement Test (MMDT) (Moorfields Eye Hospital, London, UK), iVue optical coherence tomography (OCT) (Optovue Inc., Fremont, CA), and ocular response analyzer (ORA) (Reichert Ophthalmic Instruments, Depew, NY), alone or combined, for primary open-angle glaucoma (POAG). DESIGN: Cross-sectional, observational, community-based study...
December 2015: Ophthalmology
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