Search Our Scientific Publications & Authors

World J Urol 2022 Jun 22. Epub 2022 Jun 22.

Department of Earth and Planetary Sciences, Weizmann Institute of Science, 7610001, Rehovot, Israel.

Purpose: The purpose of our study was to evaluate the ability of ureteral stents with different diameters to drain pus that accumulates in an obstructed kidney using an in vitro model.

Methods: We developed an in vitro model of an obstructed kidney filled with pus. The model included a silicon kidney unit based on computed tomography (CT) data, a 3D printed ureteral stone based on a real extracted ureteral stone, a latex ureter model, a bladder vessel, and a fluid with qualities resembling pus. Read More

BMC Infect Dis 2022 May 19;22(1):478. Epub 2022 May 19.

Department of Infectious Diseases, Vestfold Hospital Trust, Postbox 2168, 3103, Tønsberg, Norway.

Background: The role of oral beta-lactam antibiotics in treating febrile urinary tract infections (UTI) is not yet definite. Today, fluoroquinolones together with trimethoprim-sulfamethoxazole (TMP-MTX) are considered standard of care and often the only available evidence-based oral treatment for febrile UTI. This study clarifies the efficacy and safety of pivmecillinam (PIV) used as step-down therapy for bacteremic urinary tract infection (UTI). Read More

Clin Nephrol 2022 Jul;98(1):62-64

Cir Pediatr 2022 Apr 1;35(2):85-90. Epub 2022 Apr 1.

Donostia University Hospital. San Sebastian (Spain).

Objective: Traditionally, double J stent removal in pediatric patients has required cystoscopy under general anesthesia. Magnetic stents allow for double J stent removal without the need for anesthesia. This work describes our initial experience with these stents. Read More

Forensic Sci Med Pathol 2022 Mar 9. Epub 2022 Mar 9.

Department of Forensic Medicine, Fattouma Bourguiba University Hospital, Monastir, Tunisia.

Psoas abscess is a rare pathology that usually presents with non-specific signs and rare clinical features. These characteristics can delay the diagnosis leading to complications and death. We report a forensic autopsy case of a 65-year-old male, alcoholic, smoker, with a history of hypertension, and urinary infection, who presented to the emergency room for anorexia and consciousness disorder. Read More

BMC Urol 2022 Mar 7;22(1):29. Epub 2022 Mar 7.

Department of Urology, Affiliated Hospital of Jining Medical University, Jining, 272000, Shandong, China.

Background: In recent years, the safety and effectiveness of one-stage percutaneous nephrolithotomy (PCNL) for the treatment of calculous pyonephrosis have been proven. In order to further reduce postoperative pain and hospital stay, we first proposed and practiced the idea of one-stage tubeless percutaneous nephrolithotomy for calculous pyonephrosis.

Methods: A retrospective analysis was performed of case data of 30 patients with asymptomatic calculous pyonephrosis treated in our center with one-stage PCNL from January 2016 to January 2021. Read More

Radiol Case Rep 2022 Apr 4;17(4):1225-1227. Epub 2022 Feb 4.

Department of Radiology, Saint-Louis Hospital, Gaston Berger University, 2 Ngallele road, Saint-Louis, Senegal.

Pyonephrosis is a suppurative infection of the kidney caused by ureteral obstruction. It can lead to kidney failure, septic shock, and death. Thus, it requires prompt assessment and appropriate management. Read More

Pathogens 2022 Jan 10;11(1). Epub 2022 Jan 10.

"Carol Davila" University of Medicine and Pharmacy, 050474 Bucharest, Romania.

Xanthogranulomatous pyelonephritis (XGP) represents a rare and severe pathology secondary to chronic urinary obstruction and recurrent infections. Commonly, this condition leads to loss of kidney function, and frequently, surgical approach is the only optional treatment. and are the most frequent pathogens associated with XGP. Read More

BMJ Case Rep 2022 Jan 17;15(1). Epub 2022 Jan 17.

Department of Paediatrics, Universiti Kebangsaan Malaysia Medical Centre, Cheras, Kuala Lumpur, Malaysia

Congenital obstructive uropathy is a rare cause of ascites in infants. Majority of reported cases of genitourinary causes of ascites were due to posterior urethral valve. Here, we report a 6-month-old boy who presented with progressive tense ascites and peritonitis attributed by unilateral left distal ureteric obstruction and acute pyonephrosis. Read More

BMJ Case Rep 2022 Jan 17;15(1). Epub 2022 Jan 17.

Internal Medicine, McLaren Health Care Corporation, Flint, Michigan, USA

Thrombocytopaenia is a commonly encountered finding in hospitalised patients. Many antibiotics, especially beta-lactams, are well known to cause thrombocytopaenia by an immune-mediated mechanism. We present a 55-year-old woman who was admitted to the hospital with a complicated urinary tract infection resulting in right-sided pyonephrosis and pararenal abscess. Read More

Acta Med Indones 2021 Oct;53(4):469-472

Department of Anatomical Pathology, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada - Dr. Sardjito Hospital, Yogyakarta, Indonesia.

Xanthogranulomatous pyelonephritis (XGP) is a rare form of chronic pyelonephritis, which is challenging to diagnose because its clinical presentation mimics other entities and is commonly associated with a history of urinary tract obstruction. We report a case of XGP in a young adult without nephrolithiasis and urinary tract obstruction. A 23-year-old woman presented with intermittent abdominal pain in the right upper quadrant persisting for the last ten months. Read More

Pan Afr Med J 2021 12;40:91. Epub 2021 Oct 12.

Service d'Urologie, CHU Mongi Slim la Marsa, Tunis, Tunisie.

Urogenital tuberculosis is little suspected and known by clinicians. Colorenal fistulas, although rare, are complex forms of renal tuberculosis occurring in patients with advanced-stage disease. They generally occur in the ascending and descending colon. Read More

Clin Imaging 2022 Feb 5;82:53-57. Epub 2021 Nov 5.

The First Affiliated Hospital, Urology Department, Hengyang Medical School, University of South China, No. 69, chuanshan Road, Shigu District, Hengyang 421001, Hunan Province, China. Electronic address:

Objective: To explore the diagnostic value of noncontrast computed tomography (NCCT) in differentiating pyonephrosis from nonpyogenic hydronephrosis on the basis of CT values (in Horsfield unit [HU]).

Methods: Data from patients diagnosed with obstructive uropathy at the First affiliated hospital of University of South China from November 2017 to January 2021 were subjected to retrospective analysis. In accordance with the gold standard-the presence of pus during the operation-all patients were divided into the nonpyogenic hydronephrosis group and the pyonephrosis group. Read More

Hinyokika Kiyo 2021 Oct;67(10):459-463

Ogaki Municipal Hospital.

A 53-year-old woman had left pyonephrosis and bladder stone. A double-J ureteral stent was placed for left ureterostenosis and she was lost to followup. Five years later, she had back pain. Read More

Hinyokika Kiyo 2021 Oct;67(10):453-457

The Department of Urology, Nara Medical University.

A 57-year-old woman was referred to our hospital with a palpable mass in the left lumbar area. Computerized tomography revealed a diffusely enlarged destructed left kidney with impacted ureteropelvic junction stones and intense inflammatory stranding of the perirenal fat. This infiltration extended into the subcutaneous tissue. Read More

Radiol Case Rep 2021 Nov 8;16(11):3470-3477. Epub 2021 Sep 8.

Department of Thoracic Surgery, Ospedale del Mare, ASL NA1 Centro, Naples, Italy.

Nephrobronchial fistula is an extremely rare complications of renal infections. We present a case of nephrobronchial fistula in a middle age immunocompetent woman who complained cough and weight loss, with underlying asymptomatic nephrolithiasis. She underwent a chest X-ray that showed left lower lobe infiltrate and abdominal ultrasound. Read More

Int J Gen Med 2021 30;14:4051-4059. Epub 2021 Jul 30.

Bristol Urological Institute, North Bristol NHS Trust, Bristol, UK.

Purpose: Acute ureteric colic (AUC) is generally one of the most common reasons for emergency department attendance. Expectant management is recommended in non-complicated ureteral calculi. However, data regarding the optimal duration of observation or indications of early intervention (EI) are not well understood. Read More

Radiol Case Rep 2021 Sep 16;16(9):2714-2718. Epub 2021 Jul 16.

Department of Radiology, Ospedale del Mare, ASL NA1 Centro, Naples, Italy.

Pleural empyema of extra pulmonary origin is uncommon and empyema secondary to a fistula between the urinary tract and thorax is extremely rare. We report a case of nephropleural fistula causing massive pleural empyema in a 64-year-old woman with a long history of urological problems, including nephrolitiasis and urinary tract infection. She was admitted with sepsis, fever, chills, tachypnea, productive cough and pyuria. Read More

Autops Case Rep 2021 6;11:e2021283. Epub 2021 May 6.

All India Institute of Medical Sciences (AIIMS) Jodhpur, Department of Pathology & Lab Medicine, Jodhpur, Rajasthan, India.

Villous adenoma is uncommonly seen in the urogenital tract and is even more rarely seen in the upper urinary tract and renal pelvis. Like colorectal adenomas, these neoplasms can transform into adenocarcinoma. The preoperative diagnosis is challenging due to their frequent association with hydronephrosis. Read More

J Feline Med Surg 2022 04 2;24(4):298-303. Epub 2021 Jun 2.

Small Animal Specialist Hospital, Ryde, NSW, Australia.

Objectives: Ureteral obstruction (UO) in cats causes acute kidney injury and typically requires surgical intervention. Information is required about potentially modifiable risk factors to inform prevention strategies.

Methods: A case-control study was performed to assess risk factors associated with feline UO. Read More

Future Sci OA 2021 Mar 11;7(6):FSO696. Epub 2021 Mar 11.

Department of Urology, Hotel-Dieu de France, University of Saint Joseph, Beirut, Lebanon.

Pelvic organ prolapse (POP) can lead to acute bilateral obstructive pyelonephritis (ABOP) due to bilateral ureteral compression. When this occurs, conservative treatment through POP reduction, intravenous antibiotics and supportive care seems to provide an interesting option in the wait of definitive management of POP. The cornerstone of ABOP management, which is the emergent urinary drainage, seems to have many drawbacks in this context due to both technical and patient-related criteria, making it invasive and compromising patient safety and comfort in many settings. Read More

Niger J Surg 2021 Jan-Jun;27(1):63-65. Epub 2021 Mar 9.

Department of Urology, Pondicherry Institute of Medical Sciences, Pondicherry, India.

Ectopic kidney is a congenital anomaly of renal position, which is commonly asymptomatic. Symptoms arising from pelvic kidneys can closely mimic pathological processes of nearby organs and vice versa. We report an 18-year-old girl who presented with acute onset of a painful lump in the right iliac fossa. Read More

Urology 2021 Aug 12;154:e13-e14. Epub 2021 May 12.

Rutgers New Jersey Medical School, Division of Urology, Newark, NJ; RWJ BarnabasHealth, Saint Barnabas Medical Center, Division of Urology, Livingston, NJ.

Fistula formation between the kidney and the colon is a rare occurrence. Colorenal fistulas have been reported after renal cryoablation, calculous pyonephrosis, and renal cell carcinoma. Fistula formation is reported in as many as 35% of patients with Crohn's disease. Read More

Intensive Care Med 2021 Aug 19;47(8):908-909. Epub 2021 Apr 19.

Department of Internal Medicine, Ospedale Fornaroli, via al Donatore di Sangue, 50, 20013, Magenta, MI, Italy.

Transl Androl Urol 2021 Mar;10(3):1212-1221

Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.

Background: Patients with obstructive pyonephrotic nonfunctioning kidney (OPNK) often require simple nephrectomy for long-term severe clinical symptoms. We aimed to analyze the outcomes of retroperitoneal laparoscopy versus open surgery for OPNK.

Methods: The study included clinical data of 69 patients with non-tuberculous OPNK from January 2015 to June 2019 in a single center. Read More

Cir Pediatr 2021 Apr 1;34(2):100-104. Epub 2021 Apr 1.

Interventional Radiology Department. La Paz University Hospital. Madrid (Spain).

Objectives: Congenital primary obstructive megaureter (POM) is caused by ureterovesical junction stenosis, reduced peristalsis, and the resulting dilatation. Even though ureteral re-implantation remains the current gold standard technique, retrograde dilatation is considered as an effective therapeutic alternative with good results and growing proponents - to the extent it has become the technique of choice in some healthcare facilities. The objective was to present an alternative approach for treatment purposes. Read More

Int J Surg Case Rep 2021 Apr 5;81:105731. Epub 2021 Mar 5.

Division of Urology, Department of Surgery, Faculty of Medicine, Universitas Sumatera Utara - Haji Adam Malik General Hospital Medan, Jl. Bunga Lau No.17, Kemenangan Tani, Kec. Medan Tuntungan, Kota Medan, Sumatera Utara, 20136, Indonesia. Electronic address:

Introduction: Bladder augmentation can be performed by detubularization of the small or large intestine. A large capacity bladder is necessary to avoid frequent urination; thus, the ileal sac must be able to store the maximum volume of urine with relatively low pressure and the shortest length of the intestine. The acceptable pressure capacity should always be under ureteric pressure to avoid back pressure and kidney damage. Read More

Transl Androl Urol 2021 Feb;10(2):710-723

Department of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China.

Background: To develop a machine learning (ML)-assisted model capable of accurately identifying patients with calculous pyonephrosis before making treatment decisions by integrating multiple clinical characteristics.

Methods: We retrospectively collected data from patients with obstructed hydronephrosis who underwent retrograde ureteral stent insertion, percutaneous nephrostomy (PCN), or percutaneous nephrolithotomy (PCNL). The study cohort was divided into training and testing datasets in a 70:30 ratio for further analysis. Read More

Diagnostics (Basel) 2021 Feb 17;11(2). Epub 2021 Feb 17.

Department of Radiology, Ospedale del Mare ASL NA1 Centro, 80147 Naples, Italy.

Urinary tract infections (UTIs) are the most frequent community-acquired and healthcare-associated bacterial infections. UTIs are heterogeneous and range from rather benign, uncomplicated infections to complicated UTIs (cUTIs), pyelonephritis and severe urosepsis, depending mostly on the host response. Ultrasound and computed tomography represent the imaging processes of choice in the diagnosis and staging of the pathology in emergency settings. Read More

Ther Adv Urol 2021 Jan-Dec;13:1756287220984046. Epub 2021 Jan 21.

Department of Urology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, No. 9677, East Jingshi Road, Jinan, 250014, P.R. China.

Aims: Management of inflammatory renal disease (IRD) can still be technically challenging for laparoscopic procedures. The aim of the present study was to compare the safety and feasibility of laparoscopic and hand-assisted laparoscopic nephrectomy in patients with IRD.

Patients And Methods: We retrospectively analyzed the data of 107 patients who underwent laparoscopic nephrectomy (LN) and hand-assisted laparoscopic nephrectomy (HALN) for IRD from January 2008 to March 2020, including pyonephrosis, renal tuberculosis, hydronephrosis, and xanthogranulomatous pyelonephritis. Read More