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Ureter obstruction

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https://www.readbyqxmd.com/read/27920988/ureteric-obstruction-caused-by-a-migrated-intrauterine-device
#1
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/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
#2
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/27916681/surfactant-protein-a-deficiency-exacerbates-renal-interstitial-fibrosis-following-obstructive-injury-in-mice
#3
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
#4
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/27904125/use-of-corticosteroids-for-urinary-tuberculosis-patients-at-risk-of-developing-ureteral-obstruction
#5
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/27900216/predictors-of-renal-recovery-in-renal-failure-secondary-to-bilateral-obstructive-urolithiasis
#6
Muthukrishna P Rajadoss, Chandrasingh Jeyachandra Berry, Grace J Rebekah, Vinu Moses, Shyamkumar N Keshava, Kuruthukulangara S Jacob, Santosh Kumar, Nitin Kekre, Antony Devasia
OBJECTIVES: To identify factors predicting renal recovery in patients presenting with renal failure secondary to bilateral obstructing urolithiasis. PATIENTS AND METHODS: Data from electronic records of consecutive adult patients presenting with bilateral obstructing urolithiasis between January 2007 and April 2011 were retrieved. Ultrasonography of the abdomen, and kidney, ureter, bladder (KUB study) X-ray or abdominal non-contrast computed tomography confirmed the diagnosis...
December 2016: Arab Journal of Urology
https://www.readbyqxmd.com/read/27897235/stereotactic-body-radiation-therapy-induces-fast-tumor-control-and-symptom-relief-in-patients-with-iliac-lymph-node-metastasis
#7
Zhongqiu Wang, Jing Wang, Hongqing Zhuang, Ping Wang, Zhiyong Yuan
The CyberKnife is a robotic stereotactic body radiotherapy (SBRT) system which has shown promising results for many malignances with good efficacy and low toxicity. This study aims to evaluate the response and local control (LC) obtained with CyberKnife in the management of iliac lymph node metastases (ILNM). Twenty-two patients with 27 ILNM were treated by CyberKnife from May 2010 to May 2016. Median follow-up time was 33 months (8-97). The complete response, partial response, stable disease and progression disease rates were 37...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27889223/laparoscopic-pyeloplasty-initial-experience-with-3d-vision-laparoscopy-and-articulating-shears
#8
Hiba Abou-Haidar, Talal Al-Qaoud, Roman Jednak, Alex Brzezinski, Mohamed El-Sherbiny, John-Paul Capolicchio
INTRODUCTION: Laparoscopic reconstructive surgery is associated with a steep learning curve related to the use of two-dimensional (2D) vision and rigid instruments. With the advent of robotic surgery, three-dimensional (3D) vision, and articulated instruments, this learning curve has been facilitated. We present a hybrid alternative to robotic surgery, using laparoscopy with 3D vision and articulated shears. OBJECTIVE: To compare outcomes of children undergoing pyeloplasty using 3D laparoscopy with articulated instruments with those undergoing the same surgery using standard laparoscopy with 2D vision and rigid instruments...
October 24, 2016: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/27882234/dysgerminoma-developing-from-an-ectopic-ovary-in-a-patient-with-wagr-syndrome-a-case-report
#9
Rie Miura, Yoshihito Yokoyama, Tatsuhiko Shigeto, Masayuki Futagami, Hideki Mizunuma, Akira Kurose, Kazushi Tsuruga, Shinya Sasaki, Kiminori Terui, Etsuro Ito
WAGR syndrome is caused by an 11p13 deletion and includes Wilms' tumor, aniridia, genitourinary anomalies and mental retardation. We encountered a case of a dysgerminoma originating in an ectopic ovary in a woman with WAGR syndrome. Our patient was a 24-year-old nulliparous woman who was diagnosed with WAGR syndrome. The patient had undergone left nephrectomy for a Wilms' tumor and postoperative chemotherapy at the age of 7 months. She also had a history of glaucoma surgery in both eyes, and was followed up at the Department of Pediatrics for diabetes mellitus, hypertension, liver dysfunction and hyperuricemia...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27868092/endourologic-diagnosis-and-robotic-treatment-of-a-giant-fibroepithelial-polyp-of-the-ureter
#10
Francesco Cattaneo, Fabio Zattoni, Luca Meggiato, Claudio Valotto, Fabrizio Dal Moro, Marina Paola Gardiman, Paolo Beltrami, Filiberto Zattoni
Background: Fibroepithelial polyps (FEPs) are a rare cause of ureteropelvic junction (UPJ) obstruction. Radiologists and urologists are not always confident with this disease because of its rarity, complex diagnosis, and heterogeneity of the available treatment options. Case Presentation: We present the endourologic diagnosis and the robotic management of a ureteral polyp close to the left UPJ. A 16-year-old woman with a 12 years history of left lumbar pain was referred to our Center. A computed tomography scan detected a left hydronephrosis with no signs of obstructions at MAG-3 scintigraphy...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27868091/aftermath-of-grade-3-ureteral-injury-from-passage-of-a-ureteral-access-sheath-disaster-or-deliverance
#11
Roshan M Patel, Zhamshid Okhunov, Kamaljot Kaler, Ralph V Clayman
Background: The ureteral access sheath (UAS) has revolutionized the management of urinary pathology in the upper tract by providing rapid repeatable access to the upper urinary tract. However, in many practices, it remains a controversial tool in endourology given concerns of possible ureteral injury and presumed long-term sequela from those injuries. This case suggests that these concerns may be more hypothetical than real. Case Presentation: A 32-year-old female with a history of recurrent nephrolithiasis presented with left-sided symptomatic renal colic...
2016: Journal of Endourology Case Reports
https://www.readbyqxmd.com/read/27861623/clinical-implications-of-obstructed-hemivagina-and-ipsilateral-renal-anomaly-ohvira-syndrome-in-the-prepubertal-age-group
#12
Jang Hee Han, Yong Seung Lee, Young Jae Im, Sang Woon Kim, Mi-Jung Lee, Sang Won Han
PURPOSE: Obstructed hemivagina and ipsilateral renal anomaly (OHVIRA) syndrome is a rare syndrome characterized by Müllerian duct and renal anomalies. It is usually regarded as a disease of adolescence; however, due to a number of possible problems, the management of patients before puberty should not be overlooked. We assessed the clinical course of prepubertal patients to propose appropriate management. MATERIALS AND METHODS: We retrospectively assessed 43 prepubertal OHVIRA syndrome patients who were diagnosed and followed up at our institution from July 2004 to June 2015...
2016: PloS One
https://www.readbyqxmd.com/read/27845607/establishment-and-observation-of-a-new-and-ideal-reversible-model-of-puuo
#13
Wei Zhu, Xi Zheng, Chunming Jiang, Haifeng Huang, Wei Wang, He Liu, Wei Jiang, Lin Yang, Shengjie Zhang, Miao Zhang, Dalong Zhu, Xiang Yan
OBJECTIVE: We established a novel procedure to generate a reversible partial unilateral ureteral obstruction (PUUO) in rabbit. The method allows us to reliably measure the degree of ureteral obstruction in live animals, and thus could be a useful tool for studying kidney diseases. METHODS: Thirty rabbits of clean grade were divided randomly into sham control group and obstruction (PUUO) group. Each rabbit in this study received the same blocking surgery, in which the upper ureter was curvilinearly incised and inserted with two F6 ureteral catheters that were connected with a tee joint valve...
November 15, 2016: Renal Failure
https://www.readbyqxmd.com/read/27843217/robot-assisted-pyeloplasty-for-pelvi-ureteric-junction-obstruction-of-lower-moiety-in-partial-duplex-system-a-technical-challenge
#14
Girdhar S Bora, Kalpesh Parmar, Ravimohan S Mavuduru
Management of pelvi-ureteric junction obstruction (PUJO) in a duplex system is technically challenging as dissection at the pelvis may jeopardize the vascularity of the normal moiety ureter. Anastomosing the pelvis to the one single ureter will have a risk of future development of stricture which then will risk both the moieties. Robotic assistance enables appropriate tissue dissection; minimal handling of normal ureter and precision in suturing, overcoming the potential challenges involved in the minimally invasive management of such complex cases...
October 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/27843215/extravesical-modified-gregoir-lich-versus-intravesical-cohen-s-ureteric-reimplantation-for-vesicoureteral-reflux-in-children-a-single-center-experience
#15
Krishnamoorthy Sriram, Ramesh Babu
INTRODUCTION: There are multiple techniques for surgical correction of vesicoureteral reflux (VUR). We compared the outcomes of extravesical versus Cohen's reimplantation for VUR in children. METHODS: Records of all children (n = 118) who underwent reimplantation for VUR between 2003 and 2014 were analyzed (male: female = 43:75). Children with secondary VUR, duplication anomalies, and ectopic ureter were excluded from our study. Extravesical reimplantation (EVR) was performed bilateral in 32 children (Group 1a) and unilateral in 19 (Group 1b), while bilateral Cohen's reimplantation was performed in 67 (Group 2)...
October 2016: Indian Journal of Urology: IJU: Journal of the Urological Society of India
https://www.readbyqxmd.com/read/27842760/-laparoscopic-ureterovesical-repair-for-megaureter-treatment
#16
Sergio Landa-Juárez, Alejandra Guerra-Rivas, Ramón Salgado-Sangri, Ana María Castillo-Fernandez, Hermilo de la Cruz-Yañez, Carlos Garcia-Hernandez
BACKGROUND: An alternative treatment for obstructive and refluxing obstructive megaureter with ureterovesical junction maintenance through laparoscopy is proposed. MATERIAL AND METHODS: The series consists of 8 cases, all of them studied because of prenatal hydronephrosis or febrile urinary tract infection. Seven were diagnosed with obstructive megaureter and one with obstructive refluxing megaureter. The procedure consisted in incising the stenotic portion of the ureter longitudinally and maintaining its posterior wall attached to the bladder, the anterior wall of the ureter was anastomosed transversally to the bladder mucosa in order to liberate the obstruction...
November 11, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/27822461/retroperitoneal-fibrosis-retrospective-descriptive-study-on-clinical-features-and-management
#17
Ann-Sophie Laroche, Robert Z Bell, Sarah Bezzaoucha, Eva Földes, Caroline Lamarche, Michel Vallée
INTRODUCTION: Retroperitoneal fibrosis (RPF) is a rare condition characterized by the presence of inflammatory and fibrous retroperitoneal tissue that often encases the ureters or abdominal organs. This study describes the clinical characteristics, diagnostic methods, and treatments and their effects on renal function. METHODS: We conducted a retrospective analysis of patients diagnosed with RPF at Maisonneuve-Rosemont Hospital. RESULTS: We identified 17 patients with RPF between 1998 and 2013...
2016: Research and Reports in Urology
https://www.readbyqxmd.com/read/27818830/a-case-of-metastatic-melanoma-in-the-ureter
#18
James Macneil, Tania Hossack
Advances in the treatment of melanoma are resulting in patients living for extended periods after being diagnosed with metastatic disease. Metastases to the ureter are rare, but they have been described in the literature on a number of occasions. In this case report, we describe a patient with established metastatic melanoma who, whilst taking and responding to immunomodulatory therapy, was found to have an obstructive mass in the middle of his left ureter. Rather than performing either a nephroureterectomy or partial resection of the ureter, we opted to perform an endoscopic resection of the melanoma...
2016: Case Reports in Urology
https://www.readbyqxmd.com/read/27778495/laparoscopic-pyeloplasty-in-children-with-horseshoe-kidney
#19
Paulo Renato Marcelo Moscardi, Roberto Iglesias Lopes, Marcos Figueiredo Mello, Cristovao Machado Barbosa, Bruno Nicolino Cezarino, Lorena Marçalo Oliveira, Francisco Tibor Dénes, Miguel Srougi
INTRODUCTION: Horseshoe kidney occurs in 1 per 400-800 live births and are more frequently observed in males (M:F 2:1). Ureteropelvic junction obstruction (UPJO) is commonly associated with horseshoe kidneys. The variable blood supply, presence of the isthmus and high insertion of the ureter contribute to this problem. CASE REPORT: An asymptomatic 6 year-old boy presented with antenatal hydronephrosis. Ultrasonography and CT scan demonstrated left UPJO associated with a horseshoe kidney...
October 20, 2016: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/27768221/renal-fungus-ball-a-challenging-clinical-problem
#20
Wei Phin Tan, Ulku C Turba, Leslie A Deane
INTRODUCTION: We describe a case of renal pelvi-ureteric fungus ball managed with placement of two nephrostomy tubes and amphotericin B irrigation through a nephrostomy tube with the other to free drain. CASE REPORT: A 46-year-old man with uncontrolled Type 2 diabetes mellitus was referred to the urology clinic for workup of recurrent urinary tract infection. Urine culture grew Candida albicans. The patient was started on oral fluconazole therapy. Cystoscopy and cystogram revealed a grade 3 left vesicoureteral reflux and right retrograde pyelogram revealed a filling defect in the right renal pelvis extending into the proximal ureter with severe hydroureteronephrosis...
October 15, 2016: Urologia
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