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https://www.readbyqxmd.com/read/27933480/alternatives-to-the-baseline-kub-for-ctkub-detected-calculi-evaluation-of-ct-scout-and-average-and-maximum-intensity-projection-images
#1
Hin-Boon Matthew Lew, James Han-Su Seow, Chandra Padmini Hewavitharana, Sally Burrows
PURPOSE: A CT of the kidneys, ureters, and bladder (CTKUB) is the investigation of choice in suspected renal colic. Plain kidney, ureter, and bladder radiographs (KUB) can be used to monitor the progress of a stone if radiographically visible on a baseline KUB. This study aims to determine if a low-dose CT Scout, thick-slab average intensity projection (AIP), or maximum intensity projection (MIP) images are suitable as substitutes for a baseline KUB. METHOD: A retrospective review of patients from a tertiary adult institute that had a positive CTKUB and a KUB within 4 h of the CT was performed...
December 8, 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27932430/bladder-agenesis-ectopic-ureters-and-a-multicystic-dysplastic-horseshoe-kidney-in-one-twin-newborn-with-normal-amniotic-fluid-index-in-utero
#2
Marium Naveed Khan, William F Walsh
A monochorionic-diamniotic twin baby presented with intrauterine growth restriction and anuria. The baby was found to have bladder agenesis, a pelvic dysplastic horseshoe kidney, vertebral anomalies, a ventricular septal defect and facial dysmorphisms. It was surprising to find no abnormalities in amniotic fluid indices prenatally, suggesting the possibility of urine output that declined as the pregnancy proceeded. Some degree of twin-to-twin transfusion of amniotic fluid was also possible, which could have rescued the oligohydramnios known to be associated with kidney and urinary tract abnormalities...
December 8, 2016: BMJ Case Reports
https://www.readbyqxmd.com/read/27930581/associations-between-interventions-for-urolithiasis-and-urinary-tract-cancer-among-patients-in-taiwan-the-effect-of-early-intervention
#3
Chien-Liang Lin, Wen-Tsung Huang, Wen-Chou Fan, Yin-Hsun Feng, Chia-Ho Lin, Chian-Shiung Lin, Chih-Cheng Lu, Tse-Chou Cheng, Chao-Jung Tsao, Sheng-Hsiang Lin
The aim of this study was to investigate cancer risk in patients with a history of urolithiasis and to determine whether intervention for calculi attenuated the risk of subsequent urinary tract cancer (UTC).Using data from the National Health Insurance Research Database in Taiwan, we performed a nationwide cohort study enrolling participants (n = 42,732) aged > 30 years who were diagnosed with urinary tract calculi between 2000 and 2009. Age- and gender-matched insured individuals (n = 213,660) found in the health service records over the same period were recruited as the control group...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27929506/dose-reduction-in-ct-urography-and-vasculature-phantom-studies-using-model-based-iterative-reconstruction
#4
Leland Page, Wei Wei, Vikas Kundra, John Rong
To evaluate the feasibility of radiation dose reduction using model-based iterative reconstruction (MBIR) for evaluating the ureters and vasculature in a phantom, a tissue-equivalent CT dose phantom was scanned using a 64-channel CT scan-ner. Tubes of varying diameters filled with different dilutions of a contrast agent, simulating ureters or vessels, were inserted into the center of the phantom. Each combination was scanned using an existing renal protocol at 140 kVp or 120 kVp, yielding a display volumetric CT dose index (CTDIvol) of 24 mGy...
November 8, 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/27928849/safety-of-total-laparoscopic-hysterectomy-in-patients-with-prior-cesarean-section
#5
Soyi Lim, Seungho Lee, Joohyun Choi, Seungjoo Chon, Kwangbeom Lee, Jinwoo Shin
AIM: Patients who have undergone a cesarean section (CS) prior to hysterectomy are at a higher perioperative risk of complications. The purpose of this study was to evaluate the safety of total laparoscopic hysterectomy (TLH) in patients with prior CS. METHODS: We enrolled 482 patients treated with TLH. Surgical outcomes including major complications were compared between patients without prior CS (no CS group; n = 324) and patients with prior CS (prior CS group; n = 158)...
December 8, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27928810/the-association-of-stone-opacity-in-plain-radiography-with-percutaneous-nephrolithotomy-outcomes-and-complications
#6
Robab Maghsoudi, Masoud Etemadian, Amir Hossein Kashi, Alireza Ranjbaran
PURPOSE: To investigate the influence of stone opacity in plain radiography on stone free rate and complications ofpercutaneous nephrolithotomy (PCNL). MATERIALS AND METHODS: A number of 101 patients who underwent PCNL between July-September 2015 wereprospectively included. Stone opacity was judged on preoperative plain Kidney-Ureter-Bladder X-ray. Stone freerate was evaluated two weeks after the operation by ultrasonography and KUB. RESULTS: There were 61 patients with opaque stones and 40 patients with non-opaque stones...
December 8, 2016: Urology Journal
https://www.readbyqxmd.com/read/27928169/ureteral-obstruction-secondary-to-disseminated-penicilliosis-in-a-german-shepherd-dog
#7
Michelle M Acierno, Christopher P Ober, Brad A Goupil, Erik J Olson
Abdominal ultrasonographic evaluation of a 2-year-old male German shepherd dog evaluated for weight loss demonstrated a right ureteral mass with ipsilateral hydronephrosis, hypoechoic splenic nodules, and hypoechoic and rounded lymph nodes. A fungal mat extending from the renal pelvis into the ureter secondary to disseminated Penicillium was confirmed at necropsy.
December 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/27926970/management-of-endometriosis-involving-the-urinary-tract
#8
Mobolaji O Ajao, Jon I Einarsson
Endometriosis is a common cause of infertility and disabling pelvic pain in reproductive age women. The most widely accepted theory of its pathogenesis is the retrograde flow of menstrual products, although extra-abdominal and extrapelvic diagnoses have been made. After the pelvic peritoneum and gynecologic structures, the most commonly affected sites are the lower gastrointestinal and urinary tracts. When the urinary tract is involved, the bladder is the predominant site, followed by the ureters. The focus of this seminar will thus be these two anatomic sites...
December 7, 2016: Seminars in Reproductive Medicine
https://www.readbyqxmd.com/read/27924195/effects-of-glycopyrrolate-premedication-on-preventing-postoperative-catheter-related-bladder-discomfort-in-patients-receiving-ureteroscopic-removal-of-ureter-stone
#9
Jin A Kim, Jin Hye Min, Hong Sik Lee, Hyong Rae Jo, Ui Jin Je, Jin Hyub Paek
BACKGROUND: Glycopyrrolate given as reversing agents of muscle relaxants has been reported to be effective in reducing postoperative catheter-related bladder discomfort (CRBD). However, it remains unclear whether glycopyrrolate as premedication is also effective. This study aims to investigate the effectiveness of glycopyrrolate as premedication on preventing CRBD in the post-anesthesia care unit (PACU). METHODS: Eighty-three patients who received elective ureteroscopic removal of ureteral stone were randomly assigned to the control (n = 43) or the glycopyrrolate group (n = 40)...
December 2016: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/27923152/hydronephrosis-in-the-wnt5a-ablated-kidney-is-caused-by-an-abnormal-ureter-bladder-connection
#10
Kangsun Yun, Alan O Perantoni
The Wnt5a null mouse is a complex developmental model which, among its several posterior-localized axis defects, exhibits multiple kidney phenotypes, including duplex kidney and loss of the medullary zone. We previously reported that ablation of Wnt5a in nascent mesoderm causes duplex kidney formation as a result of aberrant development of the nephric duct and abnormal extension of intermediate mesoderm. However, these mice also display a loss of the medullary region late in gestation. We have now genetically isolated duplex kidney formation from the medullary defect by specifically targeting the progenitors for both the ureteric bud and metanephric mesenchyme...
December 3, 2016: Differentiation; Research in Biological Diversity
https://www.readbyqxmd.com/read/27920988/ureteric-obstruction-caused-by-a-migrated-intrauterine-device
#11
Xuesong Yang, Xi Duan, Tao Wu
We present an extremely rare case of ureteric obstruction caused by a migrated intrauterine device. A 36-year-old female with complaints of almost 10 months left flank pain presented to our hospital. She used an IUD for contraception for 6 months after the birth of her first child. The IUD was not visible then. Ultrasonography (US) revealed that left severe hydronephrosis and upper ureterectasis. Pelvic computed tomography (CT) found that IUD was located very close to the lower ureter which was adjacent to the third anatomize physiological narrow...
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27920987/spontaneous-perforation-of-the-upj-a-case-report-and-review-of-the-literature
#12
K Searvance, J Jackson, N Schenkman
Spontaneous rupture of the ureter is an uncommon condition defined by non-traumatic extravasation of urine. Causative factors leading to rupture include urinary calculi, malignancies, instrumentation or trauma. Ureteral rupture can lead to numerous complications, including abscess formation, urinomas, and urosepsis. Minimal literature is available regarding spontaneous ureteral perforation, especially at the ureteropelvic junction. We present a rare case of spontaneous perforation of the ureter at the ureteropelvic junction caused by an undiagnosed non-compliant bladder...
January 2017: Urology Case Reports
https://www.readbyqxmd.com/read/27920841/wolffian-origin-of-vagina-unfolds-the-embryopathogenesis-of-ohvira-obstructed-hemivagina-and-ipsilateral-renal-anomaly-syndrome-and-places-ohvira-as-a-female-counterpart-of-zinner-syndrome-in-males
#13
Yashant Aswani, Ravi Varma, Pradeep Choudhary, Reeta B Gupta
BACKGROUND: The classical theory of Müllerian origin of upper vagina fails to explain complex urogenital malformations like OHVIRA syndrome; the Acien's hypothesis, however, unravels the hidden embryopathogenesis. As per Acien, Wolffian (mesonephric) ducts instead of Müllerian ducts and sinovaginal bulbs, give rise to the vagina. The new hypothesis, however, retains the concept of origin of the ureters (with ureters inducing renal development) by the former and the uterus by Müllerian ducts...
2016: Polish Journal of Radiology
https://www.readbyqxmd.com/read/27919138/-modified-toyoda-method-for-complete-duplex-ureters-in-tubeless-cutaneous-ureterostomy-report-of-a-case
#14
Chul Jang Kim, Ryo Fujiwara, Hiroto Yamashita
A 65-year-old man underwent radical cystectomy and cutaneous ureterostomy for bladder cancer. Because the patient had left complete duplex ureters,we modified the Toyoda method to construct the tubeless cutaneous ureterostomy with a unilateral stomal creation. The adhesive portion of both ureteral walls in duplex ureters was simultaneously cut approximately 5 mm from the distal end longitudinally,and the common sheath of the cut portion of the ureters was cut approximately 5 mm longitudinally in order to separate the two ureters...
November 2016: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/27917808/unenhanced-computed-tomography-findings-of-renal-papillae-in-patients-with-a-ureteral-stone
#15
Selim Serter, Erkan Sahin, Utku Mahir Yildirim, Murat Arslan, Ayhan Karakose
PURPOSE: In some patients with a ureteral stone without uretero-hydronephrosis, it is difficult to determine the location of the stone. The objective of the present study was to investigate the changes in renal papillae using unenhanced computerized tomography (uCT) and determine the side of calculi using the renal papillary findings in patients with a ureteral stone. METHODS: uCT data from 81 patients were retrospectively reviewed for this study. The inclusion criteria were unilateral ureteral calculi, no renal calculi and no hydronephrosis...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27916681/surfactant-protein-a-deficiency-exacerbates-renal-interstitial-fibrosis-following-obstructive-injury-in-mice
#16
Shaojiang Tian, Chenxiao Li, Ran Ran, Shi-You Chen
Renal interstitial fibrosis is an inevitable consequence of virtually every type of chronic kidney disease. The underlying mechanisms, however, are not completely understood. In the present study, we identified surfactant protein A (SP-A) as a novel protein factor involved in the renal fibrosis induced by unilateral ureter obstruction (UUO). UUO induced SP-A expression in mouse kidney epithelium, likely due to the increased acidic stress and inflammation. Interestingly, SP-A deficiency aggravated UUO-prompted kidney structural damage, macrophage accumulation, and tubulointerstitial fibrosis...
December 1, 2016: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/27914244/surgical-treatment-and-histopathological-assessment-of-advanced-cervicovaginal-carcinoma-a-prospective-study-and-retrospective-analysis
#17
Michael Höckel, Benjamin Wolf, Bettina Hentschel, Lars-Christian Horn
BACKGROUND: Standard treatment of advanced cervicovaginal cancer [international federation of gynecology and obstetrics (FIGO) stages II(B), III(A, B), IVA] is (chemo-)radiation excluding the possibility of systematic histopathological assessment of locoregional tumour spread. Laterally extended endopelvic resection (LEER) and therapeutic lymph node dissection (tLND) are novel surgical treatment options for advanced cervicovaginal cancer. METHODS: The therapeutic efficacy of LEER for locally advanced primary and recurrent cervicovaginal cancer was reassessed by an update of the prospective observational trial at the University of Leipzig...
November 30, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27911468/radical-cystectomy-and-cutaneous-ureterostomy-in-4-dogs-with-trigonal-transitional-cell-carcinoma-description-of-technique-and-case-series
#18
Rafael Ricardo Huppes, Leandro Z Crivellenti, Andrigo Barboza De Nardi, Bruno Roque Lima, Cristiane Alves Cintra, Jorge Luiz Costa Castro, Christopher A Adin
OBJECTIVE: To describe radical cystectomy followed by cutaneous ureterostomy as a treatment of invasive bladder neoplasia in dogs. STUDY DESIGN: Retrospective study. ANIMALS: Client-owned dogs with transitional cell carcinoma of the bladder trigone (n=4). METHODS: Perioperative complications and long-term outcomes of dogs that underwent cutaneous ureterostomy following radical cystectomy and lymphadenectomy for transitional cell carcinoma of the urinary bladder trigone were reviewed...
December 1, 2016: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/27904125/use-of-corticosteroids-for-urinary-tuberculosis-patients-at-risk-of-developing-ureteral-obstruction
#19
Kosuke Matsui, Akitsugu Furumoto, Kojiro Ohba, Kota Mochizuki, Takeshi Tanaka, Masahiro Takaki, Konosuke Morimoto, Koya Ariyoshi
A 77-year-old man with urinary tuberculosis developed post renal anuria two days after starting an anti-tuberculosis drug regimen. He had bilateral hydronephrosis, and his right kidney was radiologically diagnosed to be non-functioning. A transurethral catheter was placed in the left ureter. No improvement in the ureteral stricture was noted during the initial three weeks of treatment; however, the stricture did thereafter improve after the commencement of oral prednisolone. In cases of urinary tuberculosis, ureteral stricture can deteriorate and result in ureteral obstruction during anti-tuberculosis treatment...
2016: Internal Medicine
https://www.readbyqxmd.com/read/27903253/developing-a-preoperative-predictive-model-for-ureteral-length-for-ureteral-stent-insertion
#20
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
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