1,148 results match your criteria imaging ureteroscopy

Diagnostic Ureteroscopy in CT Urography-Diagnosed Upper Tract Urothelial Carcinoma: Delay in Definitive Treatment and Increased Intravesical Recurrence.

Cureus 2021 Jun 20;13(6):e15775. Epub 2021 Jun 20.

Urology, Universiti Putra Malaysia, Serdang, MYS.

Purpose To investigate the effect of diagnostic ureteroscopy (URS) on the delay to surgical treatment of upper tract urothelial carcinoma (UTUC) detected by imaging and the risk of intravesical recurrence. Materials and methods We undertook a retrospective case-note analysis of all patients who underwent radical nephroureterectomy (NUU) from November 2012 to July 2019. We identified those who underwent diagnostic ureteroscopy prior to NUU as Group 1 and those who did not undergo diagnostic URS as Group 2. Read More

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Endoscopic treatment of intraluminal ureteral suture with holmium laser.

Arch Ital Urol Androl 2021 Jun 29;93(2):248-249. Epub 2021 Jun 29.

Department of Urology, University Clinic Hospital of Valencia, Facultat de Medicina i Odontologia, Universitat de València, Valencia.

Although reconstructive surgery is the most accepted treatment for ureteral injury, there are reports of cases where endourologic treatment led to correct resolution of the problem. We present the case of a female patient aged 72-year-old who was previously underwent sacralcolpopexy because of anterior vaginal compartment prolapse. The patient underwent surgery to remove the mesh, due to the pain she had had since it was placed. Read More

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[Laparoscopic substitution of the proximal ureter using buccal mucosa].

Urologiia 2021 Jun(3):13-19

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

Introduction: In patients with long ureteral strictures, bowel substitution of the ureter or kidney autotransplantation can be performed, which are technically demanding. For recurrent uretero-pelvic junction obstruction (UPJO) and proximal ureteral strictures, substitution of the ureter using buccal graft may be an alternative.

Aim: to study the results of laparoscopic ureteral substitution in patients with long proximal ureteral strictures using buccal graft. Read More

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Initial Experience with the New Super Thin Single-use Pusen Flexible Ureteroscope 7.5 Fr in Renal Stones Endoscopic Treatment.

Chirurgia (Bucur) 2021 May-Jun;116(3):354-360

Single-use flexible ureteroscopes (SU-fURS) seems to overcome the main limitations of conventional reusable ureteroscopes in terms of acquisition and maintenance costs and breakages. Our aim was to analyz the efficiency and safety of the thinnest single use flexible scope from Pusen: Uscope Pusen, PU 3033A (Tip = 7.5 Fr. Read More

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Flexible fibre optic vs digital ureteroscopy and enhanced vs unenhanced imaging for diagnosis and treatment of upper tract urothelial carcinoma (UTUC): results from the Clinical Research Office of the Endourology Society (CROES)-UTUC registry.

BJU Int 2021 May 24. Epub 2021 May 24.

Department of Urology, Medipol Mega University Hospital, Istanbul Medipol University, Istanbul, Turkey.

Objectives: To compare the oncological outcomes of patients with upper tract urothelial carcinoma (UTUC) undergoing kidney-sparing surgery (KSS) with fibre-optic (FO) vs digital (D) ureteroscopy (URS). To evaluate the oncological impact of image-enhancement technologies such as narrow-band imaging (NBI) and Image1-S in patients with UTUC.

Patients And Methods: The Clinical Research Office of the Endourology Society (CROES)-UTUC registry is an international, multicentre, cohort study prospectively collecting data on patients with UTUC. Read More

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Contemporary patterns of presentation, diagnostics and management of upper tract urothelial cancer in 101 centres: the Clinical Research Office of the Endourological Society Global upper tract urothelial carcinoma registry.

Curr Opin Urol 2021 07;31(4):354-362

Department of Urology, Medipol Mega University Hospital, Istanbul Medipol University, Istanbul, Turkey.

Purpose Of Review: To assess patterns of presentation, diagnostics and treatment in patients with upper tract urothelial carcinoma (UTUC), a multicentre registry was launched. Clinical data of UTUC patients were prospectively collected over a 5-year period.

Recent Findings: Data from 2380 patients were included from 2014 to 2019 (101 centres in 29 countries). Read More

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Surgery for Bladder and Upper Tract Urothelial Cancer.

Hematol Oncol Clin North Am 2021 Jun 15;35(3):543-566. Epub 2021 Apr 15.

Department of Urology, Member Sylvester Cancer Center, University of Miami Miller School of Medicine, University of Miami Health System, 1120 Northwest 14th Street, Suite 1560B, Miami, FL 33136, USA.

The cornerstone for diagnosis and treatment of bladder and upper tract urothelial carcinoma involves surgery. Transurethral resection of bladder tumors forms the basis of further management. Radical cystectomy for invasive bladder carcinoma provides good oncologic outcomes. 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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Mysterious visitor in the bladder: Ureteral fibroepithelial polyp.

Arch Esp Urol 2021 Apr;74(3):359-362

Department of Urology. Mugla Sıtkı Kocman University. School of Medicine. Mugla. Turkey.

Objectives: We present a unique case with a ureteral fibroepithelial tumor originating from the ureter, which could be confused with a bladder tumor on ultrasound examination due to its movement in and out of the bladder. METHODS: In cystoscopy, a papillary tumor lesion emerging from the right ureteral orifice was seen. After scanning the other quadrants, however, the tumor was not observed at the right ureteral orifice. Read More

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A Case of Renal Pelvic Cancer with a Complete Duplication of the Renal Pelvis and Ureter.

Case Rep Oncol 2021 Jan-Apr;14(1):202-206. Epub 2021 Mar 1.

Department of Urology, Yokosuka Kyosai Hospital, Yokosuka, Japan.

This paper describes a case of renal pelvic cancer with a complete duplication of the renal pelvis and ureter, which is substantially rare. A 76-year-old man was referred to the hospital because of gross hematuria for 2 years. A tumor was detected in the upper right kidney using enhanced computed tomography and magnetic resonance imaging scan, and the downstream ureter was suspected to open into the prostate. Read More

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Novel Classification for Upper Tract Urothelial Carcinoma to Better Risk-stratify Patients Eligible for Kidney-sparing Strategies: An International Collaborative Study.

Eur Urol Focus 2021 Mar 24. Epub 2021 Mar 24.

Department of Urology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Amsterdam, The Netherlands.

Background: The European Association of Urology risk stratification dichotomizes patients with upper tract urothelial carcinoma (UTUC) into two risk categories.

Objective: To evaluate the predictive value of a new classification to better risk stratify patients eligible for kidney-sparing surgery (KSS).

Design, Setting, And Participants: This was a retrospective study including 1214 patients from 21 centers who underwent ureterorenoscopy (URS) with biopsy followed by radical nephroureterectomy (RNU) for nonmetastatic UTUC between 2000 and 2017. Read More

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Diagnostic ureteroscopy for upper tract urothelial carcinoma: friend or foe?

Arab J Urol 2021 Feb 16;19(1):46-58. Epub 2021 Feb 16.

Urology Department, Fundació Puigvert, Autonomous University of Barcelona, Barcelona, Spain.

Introduction: The European Association of Urology guidelines recommend offering kidney-sparing surgery (KSS) as a primary treatment option to patients with low-risk tumours. Cystoscopy, urinary cytology, and computed tomography urography (CTU) do not always allow correct disease staging and grading, and sometimes there is even a lack of certainty regarding the diagnosis of UTUC. Diagnostic ureteroscopy (d-URS) may therefore be of crucial importance within the diagnostic framework and fundamental in establishing the appropriate therapeutic approach. Read More

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February 2021

Flexible Ureteroscopy as the New Standard for the Management of Renal Transplant Urolithiasis <15 mm: A Single-Center Experience.

J Endourol 2021 Apr 26. Epub 2021 Apr 26.

Department of Urology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, USA.

To determine the safety and efficacy of flexible ureteroscopy in the treatment of transplant urolithiasis. We reviewed a single-center series of 2652 patients who underwent surgical treatment for nephrolithiasis at our institution from 2009 to the present day to identify all patients undergoing ureteroscopy for treatment of transplant lithiasis. We identified 18 patients who underwent ureteroscopy for treatment of urolithiasis within the transplanted kidney or ureter. Read More

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Editorial Comment: How I do it open distal ureterourete-rostomy for ectopic ureters in infants with duplex sys-tems and no vesicoureteral reflux under 6 months of age.

Int Braz J Urol 2021 May-Jun;47(3):615-616

Disciplina de Urologia, Universidade Federal da Bahia e Escola Bahiana de Medicina Salvador, BA, Brasil.

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External validation and comparison of current scoring systems in retrograde intrarenal surgery: Multi-institutional study with 949 patients.

Int J Clin Pract 2021 Jun 28;75(6):e14097. Epub 2021 Feb 28.

Department of Urology, HSU Ankara Diskapi Training and Research Hospital, Ankara, Turkey.

Objectives: To externally validate and compare Resorlu-Unsal stone score (RUSS), modified Seoul National University Renal Stone Complexity Score(S-ReSC), Ito's nomogram, and Retrograde Intra-Renal Surgery (R.I.R. Read More

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Analgesic refractory colic pain: Is prolonged conservative management appropriate?

Am J Emerg Med 2021 06 15;44:137-142. Epub 2021 Feb 15.

Department of Urology, University Hospital 12 de Octubre, Madrid, Spain.

Objectives: To propose a clear definition and management pathway of patients with analgesic refractory colic pain (ARCP).

Patients And Methods: Prospective cohort study from February 2018 to February 2019 including patients with ARCP defined as ongoing renal colic pain after one dose of IV NSAID, IV paracetamol, and a parenteral opioid, given sequentially in that order. Patients were observed in-hospital under full parenteral analgesic management for 8-12 h, whenever patients had minimal or absent pain after conservative management (CM) they were discharged, and followed-up with new imaging within four weeks. Read More

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Endourological management of mucosal ureteral avulsion: Case report.

Urol Case Rep 2021 May 4;36:101595. Epub 2021 Feb 4.

Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran.

The ureteral avulsion is the most horrific complication of ureteroscopy. The traditional treatment of ureteral avulsion is open ureteral repair. However, mucosal avulsion is a new terminology that could be managed endoscopically. Read More

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Ureteral calculi associated with high-altitude polycythemia: A case report.

Medicine (Baltimore) 2021 Feb;100(7):e24621

Affiliated Huadu Hospital, Southern Medical University.

Rationale: High-altitude polycythemia (HAPC) is a common disease in high-altitude areas characterized by excessive erythrocyte proliferation and severe hypoxemia. Recently, the incidence of ureteral calculi has risen. However, cases of ureteral calculi associated with HAPC have not been reported. Read More

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February 2021

Gender-related differences in the risk factors for repeat stone surgery.

Urolithiasis 2021 Feb 11. Epub 2021 Feb 11.

Department of Urology, University of Wisconsin School of Medicine and Public Health, University of Wisconsin Medical Foundation Centennial Building, 1685 Highland Avenue, Madison, WI, 53705, USA.

Our objective was to analyze and compare the associations between potential risk factors for nephrolithiasis and repeat stone surgery in male and female patients. We retrospectively analyzed 1970 patients who had stone surgery at our institution in the period from January 2009 to May 2017, were older than 18 years and had at least 12 months of postoperative follow-up. Our definition of surgical recurrence included repeat surgery on the same renal unit or on the opposite renal unit if the original imaging did not demonstrate significant stones on that side. Read More

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February 2021

Flat Panel Detector c-Arms Are Associated with Dramatically Reduced Radiation Exposure During Ureteroscopy and Produce Superior Images.

J Endourol 2021 Jun 24;35(6):789-794. Epub 2021 Mar 24.

Department of Urology, Boston Children's Hospital, Boston, Massachusetts, USA.

We wished to determine whether newly available flat panel detector (FPD) c-arms were (1) associated with lower radiation dose during ureteroscopy (URS) than conventional image intensifier (CII) c-arms and (2) to compare fluoroscopic image quality between the units. We retrospectively reviewed 44 consecutive patients undergoing URS at a pediatric hospital, with c-arms assigned by availability in the operating room. We performed dosimetry experiments using the same c-arms on standard phantoms. Read More

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A Rare Presentation of Renal Papillary Necrosis in a COVID-19-Positive Patient.

Case Rep Urol 2021 11;2021:6611861. Epub 2021 Jan 11.

Urology Division of Surgery Department, Hazm Mebaireek General Hospital, Hamad Medical Corporation, Industrial Area Street No. 33, PO Box 3050, Doha, Qatar.

In this case report we describe an unusual presentation of severe acute papillary necrosis in a COVID-19-positive patient. An emergency flexible ureteroscopy greatly helped in the establishment of the diagnosis. In the international literature, there is a paucity of intraoperative endoscopic images representing severe renal papillary necrosis. Read More

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January 2021

Predicting ureteral status below the ureteral calculi in patients undergoing ureteroscopic lithotomy.

Acta Radiol 2021 Jan 21:284185120988092. Epub 2021 Jan 21.

Department of Urology, Peking University People's Hospital, The Second Clinical Medical College of Peking University, Beijing, PR China.

Background: During ureteroscopy, severe ureter straightness or contortion may occur before the stone is passed.

Purpose: To identify clinical factors associated with distal ureteral status below the ureteral calculi in patients before surgery.

Material And Methods: From October 2016 to March 2017, 101 patients with ureteral calculi who underwent ureteroscopic lithotripsy were reviewed. Read More

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January 2021

Ureteral Stent Fracture After Irreversible Electroporation for Treatment of Metastatic Rectal Adenocarcinoma.

J Endourol Case Rep 2020 29;6(4):548-550. Epub 2020 Dec 29.

Beaumont Health, Royal Oak, Michigan, USA.

Irreversible electroporation (IRE) is a soft tissue ablation technique using electrical pulses without thermal energy to create pores in the cell membrane, resulting in death from apoptosis rather than necrosis. Advantages include protection of blood vessels, nerves, and surrounding structures. Documented complications include periprocedure nausea/vomiting, infection, and severe pain. Read More

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December 2020

Right Renal Pelvis Renal Cell Carcinoma Mimicking Transitional Cell Carcinoma: Case Report.

J Endourol Case Rep 2020 29;6(4):536-539. Epub 2020 Dec 29.

Department of Urology, Hackensack University Medical Center, Hackensack, New Jersey, USA.

Renal cell carcinoma (RCC) originates from the renal parenchyma, whereas transitional cell carcinoma (TCC) originates from the renal urothelium. Although renal pelvis TCC is relatively rare in terms of urologic malignancies, it is the most common tumor originating in renal pelvis. A 75-year-old woman presented with gross hematuria found to have a filling defect in the renal pelvis with retrograde pyelogram and cytology showed clusters of urothelial cells, with imaging suspicious for TCC. Read More

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December 2020

Periureteral Marginal Zone Lymphoma Resulting in Hydronephrosis and Flank Pain in the Absence of Disseminated Disease: Case Report of Two Patients Presenting with Rare But Important Differential.

J Endourol Case Rep 2020 29;6(4):519-522. Epub 2020 Dec 29.

Department of Urology, University of Kansas, Kansas City, Kansas, USA.

Extrinsic compression of the ureter can result from multiple different malignancies, typically in the presence of known or disseminated disease. Rarely, hydroureteronephrosis and flank pain can occur as the presenting sign and symptom of lymphoma. In this study, we present two cases of primary ureteral obstruction in patients without a prior diagnosis of lymphoma and without bulky retroperitoneal lymphadenopathy. Read More

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December 2020

Asymptomatic Obstructive Ureterolithiasis Due to a Periureteral Venous Ring.

J Endourol Case Rep 2020 29;6(4):505-508. Epub 2020 Dec 29.

Department of Urology, University of Florida College of Medicine, Gainesville, Florida, USA.

Periureteral venous rings are a rare congenital anomaly involving the inferior vena cava (IVC) and the right ureter, where the ureter courses through a venous ring made by the duplication of the IVC during embryogenesis. This anatomic anomaly is also referred to as a transcaval ureter. Although most patients are asymptomatic and radiographic findings are incidental, some patients can be symptomatic. Read More

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December 2020

Pediatric Robot-Assisted Laparoscopic and Ureteroscopic Ureterolithotomy and Ureteroplasty.

J Endourol Case Rep 2020 29;6(4):264-267. Epub 2020 Dec 29.

Department of Urology, University of Florida College of Medicine, Gainesville, Florida, USA.

Pediatric urolithiasis may coexist with congenital urinary tract abnormalities, complicating conventional methods of stone treatment. Here, we present an effective case of robot-assisted laparoscopy and simultaneous ureteropyeloscopy for the definitive management of pediatric urolithiasis complicated by a congenital ureteral stricture. A 3-year-old girl presented to clinic with an outside noncontrast CT scan showing two 6-7 mm nonobstructing calculi in a mildly distended upper pole moiety of a duplex left kidney. Read More

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December 2020

Evaluation of the Diagnostic Value of Contrast-Enhanced Voiding Urosonography with Regard to the Further Therapy Regime and Patient Outcome-A Single-Center Experience in an Interdisciplinary Uroradiological Setting.

Medicina (Kaunas) 2021 Jan 9;57(1). Epub 2021 Jan 9.

Department of Radiology, University Hospital, LMU Munich, 81377 Munich, Germany.

: Vesicoureteral reflux (VUR) describes a common pediatric anomaly in pediatric urology with a prevalence of 1-2%. In diagnostics, in addition to the gold standard of voiding cystourethrography (VCUG), contrast-enhanced urosonography (ceVUS) offers a radiation-free procedure, which, despite its advantages, is not yet widely used. In the present single-center study, subsequent therapeutic procedures and outcomes after ceVUS of 49 patients were investigated. Read More

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January 2021

Immunoglobulin G4-related renal disease masquerading as renal pelvic tumor.

Indian J Urol 2020 Oct-Dec;36(4):318-320. Epub 2020 Oct 1.

Department of Urology, All India Institute of Medical Sciences, New Delhi, India.

The recently recognized immunoglobulin G4 (IgG4)-related disease presenting as renal pelvic pseudotumor is rare. A definitive diagnosis is often difficult to obtain preoperatively, with patients being subjected to radical surgery due to suspicion of malignancy. We present a 64-year-old male with lower urinary tract symptoms, who, on evaluation had a right renal pelvic tumor on imaging and ureteroscopy. Read More

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October 2020