23,845 results match your criteria Urinary Tract Obstruction


Recurrent Febrile Urinary Tract Infections in a Five-Year-Old Girl.

Cureus 2021 Apr 11;13(4):e14412. Epub 2021 Apr 11.

Department of Urology, Medical University of Łódź, Łódź, POL.

Urinary tract infections (UTIs) are one of the most common bacterial infections of childhood and in pediatric urology. Medical history, examination findings, and clinical course usually vary with the patient's age. Hence, there are no specific clinical features that are strictly associated with UTI in infants or children. Read More

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Urinary miRNA profiles discriminate between obstruction-induced bladder dysfunction and healthy controls.

Sci Rep 2021 May 13;11(1):10204. Epub 2021 May 13.

Urology Research Laboratory, Department for BioMedical Research DBMR, University of Bern, Bern, Switzerland.

Urgency, frequency and incomplete emptying are the troublesome symptoms often shared between benign prostatic obstruction-induced (BLUTD) and neurogenic (NLUTD) lower urinary tract dysfunction. Previously, using bladder biopsies, we suggested a panel of miRNA biomarkers for different functional phenotypes of the bladder. Urine is a good source of circulating miRNAs, but sex- and age-matched controls are important for urinary metabolite comparison. Read More

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The Effect of Low-intensity Shockwave Therapy on Non-neurogenic Lower Urinary Tract Symptoms: A Systematic Review and Meta-analysis of Preclinical and Clinical Studies.

Eur Urol Focus 2021 May 10. Epub 2021 May 10.

Department of Urology, Martha-Maria Hospital Nuremberg, Nuremberg, Germany. Electronic address:

Context: Low-intensity shockwave therapy (LiST) has emerged as an effective treatment for pain in patients with chronic prostatitis/chronic pelvic pain syndrome (CP/CPPS), and it has been postulated that LiST may also be effective in patients with lower urinary tract symptoms (LUTS).

Objective: To perform a systematic review and meta-analysis of experimental and clinical studies exploring the effect of LiST on LUTS in an attempt to provide clinical implications for future research.

Evidence Acquisition: We systematically searched PubMed, Cochrane Library, and Scopus databases from inception to March 2021 for relevant studies. Read More

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Contrast-enhanced ultrasound of transplant organs - liver and kidney - in children.

Pediatr Radiol 2021 May 12. Epub 2021 May 12.

Department of Radiology and Medical Imaging, University of Virginia Children's Hospital, Charlottesville, VA, USA.

Ultrasound (US) is the first-line imaging tool for evaluating liver and kidney transplants during and after the surgical procedures. In most patients after organ transplantation, gray-scale US coupled with color/power and spectral Doppler techniques is used to evaluate the transplant organs, assess the patency of vascular structures, and identify potential complications. In technically difficult or inconclusive cases, however, contrast-enhanced ultrasound (CEUS) can provide prompt and accurate diagnostic information that is essential for management decisions. Read More

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Acute urinary retention in the first and second-trimester of pregnancy: Three case reports.

World J Clin Cases 2021 May;9(13):3130-3139

Department of Obstetrics, Sichuan Provincial Hospital for Women and Children, Chengdu 610000, Sichuan Province, China.

Background: Acute urinary retention (AUR) is rare during pregnancy.

Case Summary: We report on three pregnant women with AUR between the 10 and 18 wk of gestation. Case 1 was first diagnosed as urinary tract infection and developed a urinary tract infection due to urinary retention caused by urethral obstruction. Read More

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Successful endoscopic surgery for emphysematous pyelonephritis in a non-diabetic patient with autosomal dominant polycystic kidney disease: A case report.

World J Clin Cases 2021 Apr;9(12):2862-2867

Department of Surgery, The University of Hong Kong-Shenzhen Hospital, Shenzhen 518053, Guangdong Province, China.

Background: Emphysema pyelonephritis (EPN) is a very dangerous type of urinary tract infection. It is a lethal disease that develops rapidly and causes the patient to deteriorate rapidly, and it can easily lead to systemic infections and even sepsis. The incidence is extremely low, and it is prevalent in patients with diabetes. Read More

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Prostate stromal tumor with prostatic cysts after transurethral resection of the prostate: A case report.

World J Clin Cases 2021 Apr;9(12):2830-2837

Department of Urology, Affiliated Xiaoshan Hospital, Hangzhou Normal University, Hangzhou 311202, Zhejiang Province, China.

Background: A prostatic stromal tumor is deemed to be a rare oncology condition. Based on the retrospective analysis of clinical data and scientific literature review, a case of prostatic stromal tumor was reported in this article to explore the diagnosis, treatment and prognosis of this rare disease.

Case Summary: The present case involved an older male patient who was admitted to our department for a medical consultation of dysuria. Read More

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Osteotomy in the newborn classic bladder exstrophy patient: A comparative study.

J Pediatr Urol 2021 Apr 22. Epub 2021 Apr 22.

Robert D. Jeffs Division of Pediatric Urology, James Buchanan Brady Urological Institutions, Johns Hopkins Hospital, Johns Hopkins Medical Institutions, Charlotte Bloomberg Children's Hospital, Baltimore, MD, USA. Electronic address:

Introduction: Pelvic osteotomy is indicated in classic bladder exstrophy (CBE) patients with a wide pubic diastasis or non-malleable pelvis. While the safety of pelvic osteotomy in delayed and failed closures is established, there remains less clarity on their safety in newborns. The authors herein sought to present their experience with CBE patients who underwent pelvic osteotomy for assistance with bladder closure during both the newborn and delayed time periods. Read More

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Surgical treatment and outcome of sterile prostatic cysts in dogs.

Vet Surg 2021 May 7. Epub 2021 May 7.

Department of Veterinary Science, University of Turin, Turin, Italy.

Objective: To describe the surgical treatment and outcome of a large cohort of dogs with sterile prostatic cysts (PCs).

Study Design: Retrospective study.

Animals: Forty-four client-owned dogs. Read More

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[Intestinal and appendicular ureteral substitution].

Urologiia 2021 May(2):14-20

Department of Urology of FGBOU VO North-Western State Medical University named after I.I. Mechnikov, Saint Petersburg, Russia.

Aim: To present the technical features and results of intestinal and appendicular ureteral replacement.

Material And Methods: From 1998 to 2020, a total of 196 patients aged 18 to 77 years (mean age 49.5 +/- 1. Read More

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ACR Appropriateness Criteria® Renal Failure.

J Am Coll Radiol 2021 May;18(5S):S174-S188

Specialty Chair, University of Alabama at Birmingham, Birmingham, Alabama, Chair, ACR Appropriateness Committee.

Renal failure can be divided into acute kidney injury and chronic kidney disease. Both are common and result in increased patient morbidity and mortality. The etiology is multifactorial and differentiation of acute kidney injury from chronic kidney disease includes clinical evaluation, laboratory tests, and imaging. Read More

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Defining Voiding Dysfunction in Women: Bladder Outflow Obstruction versus Detrusor Underactivity.

Int Neurourol J 2021 May 6. Epub 2021 May 6.

2nd Department of Urology of Aristotle University of Thessaloniki, "Papageorgiou" General Hospital of Thessaloniki, Thessaloniki, Greece.

Purpose: We aimed to develop urodynamic criteria for more accurate diagnosis of bladder outlet obstruction (BOO) and detrusor underactivity (DU) in women with lower urinary tract symptoms (LUTS).

Methods: Initially, in a group of 68 consecutive women with LUTS and increased post-void residual who had undergone urodynamic investigation we examined the level of agreement between operating physician's diagnosis of BOO or DU and diagnosis according to urodynamic nomograms/indices, including the Blaivas-Groutz (B-G) nomogram, Urethral Resistance Association (URA), Bladder Outlet Obstruction Index (BOOI) and Bladder Contractility Index (BCI). Based on the initial results, we categorized 160 women into four groups using B-G nomogram and URA (Group 1: severe-moderate BOO, Group 2: mild BOO and URA≥20, Group 3: mild BOO and URA<20 and Group 4: non-obstructed) and compared urodynamic parameters. Read More

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Therapeutic plasma exchange to mitigate flunixin meglumine overdose in a cria.

J Vet Emerg Crit Care (San Antonio) 2021 May 6. Epub 2021 May 6.

Department of Clinical Sciences, Tufts Cummings Veterinary Medical Center, North Grafton, Massachusetts, USA.

Objective: To describe the use of therapeutic plasma exchange (TPE) in the treatment of flunixin meglumine overdose in a cria.

Case Summary: A 3-day-old alpaca cria was diagnosed with ureteral obstruction and agenesis resulting in severe bilateral hydronephrosis. During hospitalization, the cria inadvertently received a flunixin meglumine overdose of >65 mg/kg. Read More

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Bulbar Urethral Stents for Bulbar Urethral Strictures: Long-Term Follow-Up after Stent Removal.

Urol Int 2021 May 5:1-6. Epub 2021 May 5.

Department of Urology, Kocaeli University School of Medicine, Kocaeli, Turkey.

Background/aim: The aim of this study was to assess long-term clinical efficacy of temporary bulbar urethral stent (BUS) used for treatment of recurrent bulbar urethral stricture (US).

Materials And Methods: A total of 168 patients with recurrent bulbar US who underwent BUS placement after internal urethrotomy between 2009 and 2019 were enrolled. An indwelling time of 12 months was planned for the stents. Read More

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Primovist® (Gadotrexate disodium) magnetic resonance use in benign and malignant kidney diagnosis.

Arch Esp Urol 2021 May;74(4):411-418

Escuela de Medicina. Universidad Anáhuac Puebla. México.

Objective: To evaluate the quality of the contrast images obtained with a Primovist® (gadoxetate disodium) Magnetic Resonance Image in order to diagnose benign, malignant and malformations in the urinary tract.

Material And Methods: A retrospective image and diagnosis review of Primovist® MRI studies performed in liver insufficient patients without apparent renal abnormalities was done, in order to evaluate the urinary tract for irregularities.

Results: A total of 117 Primovist® MRI studies performed between july 2014 and November 2018 were reviewed, 5 were excluded because they were incomplete. Read More

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[Evaluation of ischemia-modified albumin in obstructive renal injury.]

Arch Esp Urol 2021 May;74(4):427-434

SBU Haydarpasa Numune SUAM. Department of Urology. Istanbul. Turkey.

Objectives: This study was aimed at assessing the ability of ischemia-modified albumin (IMA) to predict renal injury by associating biochemical, functional, and pathological findings with various degrees of ureteral obstruction.

Methods: Twenty-four rats were randomized into three groups, and their blood was sampled to determine the creatinine and IMA values and renal scintigraphy was done at the start and on postoperative day 7. In the sham group, the ureter was untouched; in the partial group, the ureter was gently embedded into the psoas muscle; and in the complete group, the ureter was compathologically, and all parameters were statistically evaluated. Read More

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Aquablation versus holmium laser enucleation of the prostate in the treatment of benign prostatic hyperplasia in medium-to-large-sized prostates (ATHLETE): protocol of a prospective randomised trial.

BMJ Open 2021 May 3;11(5):e046973. Epub 2021 May 3.

Department of Urology, School of Medicine, University of St. Gallen, St Gallen, Switzerland.

Introduction: A novel method for the surgical treatment of benign prostatic hyperplasia (BPH) called Aquablation has become commercially available. Previous studies have been able to show similar functional results when compared with transurethral resection of the prostate and a high efficacy has been demonstrated when this approach is applied to patients with a prostate size of 80-150 cm.Holmium laser enucleation of the prostate (HoLEP) is a well-established procedure in the surgical treatment of BPH in prostate glands larger than 30 mL and a first-line therapy in glands over 80 mL. Read More

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An Unusual Presentation of Pyelonephritis: Is It COVID-19 Related?

SN Compr Clin Med 2021 Apr 24:1-6. Epub 2021 Apr 24.

Department of Urology, HagaZiekenhuis, The Hague, The Netherlands.

In severe cases of COVID-19, late complications such as coagulopathy and organ injury are increasingly described. In milder cases of the disease, the exact time frame and causal path of late-onset complications have not yet been determined. Although direct and indirect renal injury by SARS-CoV-2 has been confirmed, hemorrhagic renal infection or coagulative problems in the urinary tract have not yet been described. Read More

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Postnatal Management in Congenital Lower Urinary Tract Obstruction With and Without Prenatal Vesicoamniotic Shunt.

Front Pediatr 2021 14;9:635950. Epub 2021 Apr 14.

Center for Pediatric, Adolescent and Reconstructive Urology, Medical Faculty Mannheim, University of Medical Center Mannheim, Heidelberg University, Heidelberg, Germany.

Congenital lower urinary tract obstruction (cLUTO) includes a heterogeneous group of conditions caused by a functional or mechanical outlet obstruction. Early vesicoamniotic shunting (VAS) possibly reduces the burden of renal impairment. Postpartum, pediatric urologists are confronted with neonates who have a shunt in place and a potentially impassable urethra with a narrow caliber. Read More

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Diminished Systemic Amino Acids Metabolome and Lipid Peroxidation in Ureteropelvic Junction Obstruction (UPJO) Infants Requiring Surgery.

J Clin Med 2021 Apr 2;10(7). Epub 2021 Apr 2.

Core Unit Proteomics, Hannover Medical School, Institute of Toxicology, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany.

Congenital anomalies of the urinary tract, and particularly of obstructive nephropathy such as ureteropelvic junction obstruction (UPJO) in infants, can later lead to chronic kidney disease and hypertension. Fundamental questions regarding underlying mechanisms remain unanswered. The aim of the present study was to quantitate the systemic amino acids metabolome in 21 UPJO infants requiring surgery (Group A) and 21 UPJO infants under conservative treatment (Group B). Read More

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[Professor 's experience in treatment of obese polycystic ovary syndrome based on spleen and kidney functions].

Zhongguo Zhen Jiu 2021 Apr;41(4):429-32

Yueyang Clinic Medical College, Shanghai University of TCM, Shanghai 201203, China.

Professor 's clinical experience in treatment of obese polycystic ovary syndrome (PCOS) accompained with infertility with acupuncture and moxibustion in view of spleen and kidney functions is summarized. Professor believes PCOS is commonly seen in obese women of childbearing age, accompained with infertility, with kidney and spleen involved in terms of the disorder location. In pathogenesis, spleen and kidney deficiency is the primary and obstruction of phlegm (damp) in collateral is the secondary. Read More

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Perinephric Hematoma Associated with Pyelonephritis Following Ureteral Stent Placement for Ureteral Obstruction Causing Hydronephrosis.

Am J Case Rep 2021 Apr 27;22:e931404. Epub 2021 Apr 27.

Department of Internal Medicine, Benefis Health System, Great Falls, MT, USA.

BACKGROUND Perinephric hematomas are rare, especially following ureteral stent placement. Etiologies of perinephric hematomas include post-extracorporeal shockwave lithotripsy, Wunderlich syndrome, and renal cell carcinoma, none of which occurred in our patient, who underwent stent replacement. Subcapsular renal hematoma, rather than a perinephric hematoma, can occur following double-J ureteral stent placement. Read More

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[TREATMENT OF SEVERE ATHEROSCLEROTIC RENAL ARTERY STENOSIS WITH ACUTE KIDNEY INJURY REQUIRING HEMODIALYSIS BY PERCUTANEOUS TRANSLUMINAL RENAL ANGIOPLASTY AND STENT IMPLANTATION].

Harefuah 2021 Apr;160(4):210-214

Institute of Nephrology and Hypertension, Sheba Medical Center, Israel.

Introduction: Treatment of atherosclerotic renal artery stenosis (RAS) is still controversial. Several randomized controlled trials have shown that percutaneous transluminal renal angioplasty with stenting (PTRAS) is not superior to medical treatment, and the procedure is commonly reserved for malignant hypertension, flash pulmonary edema or deterioration of kidney function. The most challenging symptomatic RAS cases are patients with severe stenosis resulting in acute kidney injury (AKI) requiring acute hemodialysis. Read More

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Case Report: Application and Limitations of a Plant-Based Diet Formulated for a Cat With Feline Lower Urinary Tract Disease.

Front Vet Sci 2021 9;8:658265. Epub 2021 Apr 9.

Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, ON, Canada.

A 2-year-old male castrated domestic shorthair cat was presented for recommendations for dietary management of chronic FLUTD using a strictly plant-based diet as per the stipulations of the cat's owner. The cat had a history of urethral obstruction of unknown etiology, persistent marked struvite crystalluria, and persistent inappropriate elimination. Commercial plant-based products meeting the nutritional recommendations for maintenance of adult cats with the lowest concentration of struvite precursors were identified, but the cat would not eat them. Read More

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A Management of Ureteral Obstruction After Lichtenstein Tension-Free Hernia Repair in a Kidney Transplant Recipient: A Case Report.

Transplant Proc 2021 Apr 20. Epub 2021 Apr 20.

Department of Transplantation and General Surgery, Tepecik Training and Research Hospital, Izmir, Turkey.

Background: The number of renal transplants has been increasing in recent years. Recent literature data show that abdominal operations performed on patients who undergo renal transplant have higher morbidity and mortality.

Case Presentation: A 49-year-old man who had received a renal transplant from a living donor 19 years ago underwent Lichtenstein tension-free hernia repair. Read More

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Laparoscopic transposition for crossing vessels (vascular hitch) in pure extrinsic pelvic-ureteric junction obstruction: a successful case report of a 2-year-old infant with horseshoe kidney.

Surg Case Rep 2021 Apr 23;7(1):103. Epub 2021 Apr 23.

Department of Pediatric Surgery, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan.

Background: Pediatric hydronephrosis induced by pelvic-ureteric junction obstruction (PUJO) is treated by dismembered pyeloplasty (DP) via open and laparoscopic surgery. The etiology of PUJO involves both intrinsic stenosis and extrinsic compression of crossing vessels (CVs). PUJO owing to CVs is also treated by DP, as there is no consensus concerning this vascular condition. Read More

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