1,652 results match your criteria Reflux Nephropathy Imaging


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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[Endometriosis of the ureter from the standpoint of implantation theory: some aspects of pathogenesis and clinical picture].

Urologiia 2021 Mar(1):126-130

Smolensk State Medical University.

The article describes such fundamental and applied aspects of pathogenesis and clinical manifestations of such rare disease as endometriosis of ureters. Frequent involvement of left ureter in its pelvic part, close to distal colon, associated with its inflammatory diseases followed by leaky gut syndrome with bacterial spread to the fallopian tube causing its inflammation and dysfunction, provoking menstrual reflux and predisposing to affection of left ovary, peritoneum and contact spread of endometriosis to ureteral wall. This mechanism fits to the regurgitation theory of endometriosis. Read More

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Bilateral pelvic kidneys with upper pole fusion and malrotation: a  case report and  review of the literature.

J Med Case Rep 2021 Apr 5;15(1):181. Epub 2021 Apr 5.

Department of Radiology, Wad-Medani Teaching Hospital, Wad Madani, Sudan.

Background: The incidence of ectopic kidneys is 1:12,000 clinically and 1:900 postmortem. Patients with pelvic mal-rotated kidneys are more susceptible to recurrent urinary tract infections, recurrent renal stones, and renal injury. Fusion of the kidney lower poles is relatively common compared to other types of renal anomalies. Read More

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Risk factors for kidney scarring and vesicoureteral reflux in 421 children after their first acute pyelonephritis, and appraisal of international guidelines.

Pediatr Nephrol 2021 Mar 23. Epub 2021 Mar 23.

Department of Pediatric and Adolescent Medicine, Aarhus University Hospital, Aarhus, Denmark.

Background: Acute pyelonephritis (AP) is a common bacterial infection in childhood. Follow-up guidelines on these children are controversial. This study aimed to identify risk factors for kidney scarring and vesicoureteral reflux (VUR). Read More

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Estimation of mechanical work done to open the esophagogastric junction using functional lumen imaging probe panometry.

Am J Physiol Gastrointest Liver Physiol 2021 May 3;320(5):G780-G790. Epub 2021 Mar 3.

Department of Mechanical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois.

In this study, we quantify the work done by the esophagus to open the esophagogastric junction (EGJ) and create a passage for bolus flow into the stomach. Work done on the EGJ was computed using functional lumen imaging probe (FLIP) panometry. Eighty-five individuals underwent FLIP panometry with a 16-cm catheter during sedated endoscopy including asymptomatic controls ( = 14), 45 patients with achalasia ( = 15 each, three subtypes), those with gastroesophageal reflux disease (GERD; = 13), those with eosinophilic esophagitis (EoE; = 8), and those with systemic sclerosis (SSc; = 5). Read More

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Compensatory renal hypertrophy in reflux nephropathy presenting as hypertensive emergency.

Oxf Med Case Reports 2021 Feb 15;2021(2):omaa132. Epub 2021 Feb 15.

Advanced Medical and Dental Institute, Universiti Sains Malaysia, Kepala Batas, Penang, Malaysia.

Hypertensive emergency in the paediatric population is not uncommon. However, due to its numerous etiologies, care should be taken in determining the approach of management. We report a case of a child who presented with double vision, giddiness and elevated blood pressure. Read More

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February 2021

The Rare Case of Perirenal Abscess in a Child-Possible Mechanisms and Methods of Treatment: A Case Report and Literature Review.

Medicina (Kaunas) 2021 Feb 9;57(2). Epub 2021 Feb 9.

Department of Pediatric Surgery, Traumatology and Urology, Poznan University of Medical Sciences, 60-572 Poznan, Poland.

Renal and perirenal abscesses are very rare in children. They can be present as an acute emergency condition or insidiously as a chronic disease. The diagnosis is not so obvious, and it is a big challenge, especially when it can simulate a kidney tumor. Read More

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February 2021

Posterior nutcracker syndrome: a case report.

J Med Case Rep 2021 Feb 1;15(1):42. Epub 2021 Feb 1.

Radiodiagnostic and Radiotherapy Unit, Department of Medical and Surgical Sciences and Advanced Technologies "GF Ingrassia", Via Santa Sofia 78, 95123, Catania, Italy.

Background: Posterior nutcracker syndrome is defined by the compression of the left renal vein between the abdominal aorta and a lumbar vertebral body. It can be clinically manifest with intermittent hematuria, gonadal or spermatic reflux resulting in varicocele. Ultrasound is the first-line imaging which require  more accurate study  with contrast-enhanced computed tomography. Read More

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February 2021

A Case of Left Duplex Kidney with Hydronephrosis Mimicking a Left Renal Cyst in a 29-Year-Old Woman.

Am J Case Rep 2020 Nov 22;21:e927430. Epub 2020 Nov 22.

Division of Urology, Department of Surgery, Cathay General Hospital, Taipei, Taiwan.

BACKGROUND Duplex kidney, also known as duplex renal collecting system, consists of 2 ureters arising from a single kidney and is a common congenital anomaly. The condition is usually an asymptomatic normal variant. However, abnormal anatomic variants such as hydronephrosis, vesicoureteral reflux (VUR), and ureterocele are sometimes observed in a patient with a duplicated kidney. Read More

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November 2020

Clinicopathological Analysis of Medullary Ray Injury in 1-Year Protocol Paediatric Renal Allograft Biopsies.

Nephron 2020 20;144 Suppl 1:79-85. Epub 2020 Nov 20.

Department of Nephrology, Toho University Faculty of Medicine, Tokyo, Japan.

Aim: Medullary ray injury was recently reported in renal transplant biopsies. This study was performed to clarify the clinicopathological features of medullary ray injury in paediatric living renal transplant recipients.

Methods: Paediatric recipients who completed a 5-year follow-up after living renal transplantation were enroled. Read More

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November 2020

Assessment of esophageal body peristaltic work using functional lumen imaging probe panometry.

Am J Physiol Gastrointest Liver Physiol 2021 02 11;320(2):G217-G226. Epub 2020 Nov 11.

Department of Mechanical Engineering, McCormick School of Engineering, Northwestern University, Evanston, Illinois.

The goal of this study was to conceptualize and compute measures of "mechanical work" done by the esophagus using data generated during functional lumen imaging probe (FLIP) panometry and compare work done during secondary peristalsis among patients and controls. Eighty-five individuals were evaluated with a 16-cm FLIP during sedated endoscopy, including asymptomatic controls ( = 14) and those with achalasia subtypes I, II, and III ( = 15, each); gastroesophageal reflux disease (GERD; = 13); eosinophilic esophagitis (EoE; = 9); and systemic sclerosis (SSc; = 5). The FLIP catheter was positioned to have its distal segment straddling the esophagogastric junction (EGJ) during stepwise distension. Read More

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February 2021

Neurologic Complications of Preoperative Embolization of Spinal Metastasis: A Systemic Review of the Literature Identifying Distinct Mechanisms of Injury.

World Neurosurg 2020 11 14;143:374-388. Epub 2020 Aug 14.

Division of Neurosurgery, Maimonides Medical Center, Brooklyn, New York, USA; Department of Radiology, Maimonides Medical Center, Brooklyn, New York, USA.

Background: Preoperative embolization of spinal metastases may improve outcomes of resection by reducing surgical blood loss and operative time. Neurologic complications are rarely reported and the mechanisms leading to injury are poorly described.

Methods: We present 2 illustrative cases of embolization-related neurologic injury from distinct mechanisms and the findings of a systemic literature review of similar complications according to the PRISMA guidelines. Read More

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November 2020

Papillorenal Syndrome With Macular Retinoschisis and Subretinal Fluid.

JAMA Ophthalmol 2020 08 13;138(8):e194774. Epub 2020 Aug 13.

MidAtlantic Retina, Retina Service, Wills Eye Hospital, Philadelphia, Pennsylvania.

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Voiding urosonography and voiding cystourethrography in primary vesicoureteral reflux associated with mild prenatal hydronephrosis: a comparative study.

Pediatr Radiol 2020 08 7;50(9):1271-1276. Epub 2020 Jul 7.

Department of Radiology, University Hospital of Ioannina, Ioannina, Greece.

Background: Contrast-enhanced harmonic voiding urosonography has been introduced as a sensitive, radiation-free imaging method for the diagnosis of vesicoureteric reflux.

Objective: To evaluate the occurrence/severity of vesicoureteric reflux in infants with mild prenatal hydronephrosis comparing voiding cystourethrography and voiding urosonography.

Materials And Methods: Sixty infants with prenatal hydronephrosis were studied (anteriοposterior pelvic diameter 5-9 mm on ultrasound [US] at gestational weeks 21-30). Read More

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Swiss consensus recommendations on urinary tract infections in children.

Eur J Pediatr 2021 Mar 3;180(3):663-674. Epub 2020 Jul 3.

Paediatrics, Lucerne Children's Hospital, Cantonal Hospital Lucerne, Spitalstrasse, 6000, Luzern 16, Switzerland.

The kidneys and the urinary tract are a common source of infection in children of all ages, especially infants and young children. The main risk factors for sequelae after urinary tract infections (UTI) are congenital anomalies of the kidney and urinary tract (CAKUT) and bladder-bowel dysfunction. UTI should be considered in every child with fever without a source. Read More

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Utility of Society for Fetal Urology and Anteroposterior Pelvic Diameter Grading Systems for Estimating Time to Resolution of Isolated Hydronephrosis: A Single Center Study.

J Urol 2020 Nov 18;204(5):1048-1053. Epub 2020 May 18.

Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.

Purpose: We aimed to compare the Society for Fetal Urology and anteroposterior pelvic diameter classification systems in predicting the time to resolution of isolated hydronephrosis.

Materials And Methods: We retrospectively reviewed isolated hydronephrosis cases prenatally detected and postnatally diagnosed between 1994 and 2018. Other urinary tract anomalies and vesicoureteral reflux were excluded. Read More

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November 2020

Screening for Renal and Urinary Tract Anomalies in Asymptomatic First Degree Relatives of Children with Congenital Anomalies of the Kidney and Urinary Tract (CAKUT).

Indian J Pediatr 2020 09 20;87(9):686-691. Epub 2020 Mar 20.

Department of Pediatric Surgery, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India.

Objective: To estimate the frequency of renal and urinary tract anomalies in first-degree relatives of children with Congenital anomalies of kidney and urinary tract (CAKUT).

Methods: This descriptive study was conducted on parents and siblings of 138 children with CAKUT. Renal ultrasonogram, radionuclide diuretic renogram and micturating cysturethrogram were the tools used for screening these family members. Read More

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September 2020

[Diagnostic management of primary megaureter : Voiding cystourethrography obligatory, scintigraphy useful?]

Authors:
N Younsi

Urologe A 2020 Mar;59(3):261-265

Zentrum für Kinder‑, Jugend- und rekonstruktive Urologie, Universitätsmedizin Mannheim, Theodor-Kutzer-Ufer 1-3, 68167, Mannheim, Deutschland.

A primary, congenital megaureter means a dilatation of the ureter with a ureteric diameter ≥7 mm due to a structural or functional obstruction of the ureterovesical junction and represents the second most likely cause of neonatal hydronephrosis. Conservative management is the primary treatment option for many patients due to a high spontaneous remission rate of up to 85%. Concerning diagnostic management, meticulous and repeat postnatal evaluation by ultrasound is mandatory to identify patients who are at risk of renal deterioration. Read More

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Renal features of Bardet Biedl syndrome: A single center experience.

Turk J Pediatr 2019 ;61(2):186-192

Departments of Pediatric Nephrology, Çukurova University Faculty of Medicine, Adana, Turkey.

Atmış B, Karabay-Bayazıt A, Melek E, Bişgin A, Anarat A. Renal features of Bardet Biedl syndrome: A single center experience. Turk J Pediatr 2019; 61: 186-192. Read More

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Validation of "urinary tract dilation" classification system: Correlation between fetal hydronephrosis and postnatal urological abnormalities.

Medicine (Baltimore) 2020 Jan;99(2):e18707

The ultrasonic department, West China Second University Hospital of Sichuan University, Chengdu, China.

Aim to illuminate the correlation between fetal hydronephrosis and postnatal urological abnormalities by a new classification system-"urinary tract dilation (UTD)" grade.Of 659 pregnancies screened by ultrasound, 34 cases were found with isolated fetal hydronephrosis, and enrolled in our study from 2017 to 2019. These 34 infants had been prospectively followed up to 6 months after birth by 3 times of urinary tract ultrasound. Read More

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January 2020

Nutcracker Syndrome as an Unusual Cause of Postprandial Pain.

Vasc Endovascular Surg 2020 Apr 30;54(3):283-285. Epub 2019 Dec 30.

Section of Vascular Surgery, Pennsylvania Hospital, Philadelphia, PA, USA.

Nutcracker syndrome is a rare entity in which compression of the left renal vein (LRV), usually by the overlying superior mesenteric artery (SMA), results in renal venous congestion and reflux in the left ovarian vein (LOV). Patients may present with hematuria, left flank pain, dyspareunia, and vaginal or abdominal wall varicose veins. We report a patient with nutcracker syndrome who presented atypically with left flank pain that was exacerbated in the postprandial state. Read More

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Using non-contrast-enhanced magnetic resonance venography for the evaluation of May-Thurner syndrome in patients with renal insufficiency: A case report.

Medicine (Baltimore) 2019 Dec;98(52):e18427

Department of Diagnostic Radiology.

Rationale: Contrast-enhanced computed tomographic venography (CTV) or magnetic resonance venography (MRV) are usually used to detect May-Thurner syndrome (MTS). However, both are associated with contrast-induced nephrotoxicity. For patients who cannot receive contrast media, non-contrast-enhanced MRV using three-dimensional (3D) turbo spin-echo (TSE) is considered an alternative. Read More

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December 2019

Current Management of Urinary Tract Infection and Vesicoureteral Reflux.

Indian J Pediatr 2020 08 11;87(8):625-632. Epub 2019 Dec 11.

Department of Pediatrics, All India Institiute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.

Urinary tract infection (UTI) is defined as the growth of a significant number of microorganisms of a single species in the urine, in the presence of symptoms. Symptoms in young children are non-specific such as fever without focus; young infants may manifest with irritability, failure to thrive, jaundice, vomiting and diarrhea. Older children usually have symptoms of cystitis or pyelonephritis. Read More

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Bilateral retrograde pyelography leading to anuria.

Natl Med J India 2019 Jan-Feb;32(1):20-21

Department of Urology, Institute of Nephro Urology, Victoria Hospital Campus, Bengaluru 560002, Karnataka, India.

Retrograde pyelography (RGP) is done to evaluate the collecting system when intravenous contrast studies are contraindicated due to renal insufficiency or prior adverse reactions. We report a patient who developed acute renal shutdown following bilateral RGP in the same sitting done for evaluation of positive malignant cytology of urine. A 65-year-old man on treatment for left stroke and hypertension, with a baseline serum creatinine of 1. Read More

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Evaluation and Long-term Management of Neurogenic Bladder in Spinal Dysraphism.

Neoreviews 2019 12;20(12):e711-e724

Division of Pediatric Urology, Rady Children's Hospital San Diego, University of California San Diego, San Diego, CA.

Spinal dysraphism, which includes conditions such as myelomeningocele and sacral agenesis, is one of the most common causes of congenital lower urinary tract dysfunction. Early evaluation of the neurogenic bladder serves to minimize renal damage, and the main goals of management include preserving renal function, achieving acceptable continence, and optimizing quality of life. The survival of patients with such conditions has improved to greater than 80% reaching adulthood, owing to advances in diagnostic and therapeutic modalities. Read More

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December 2019

Alport-leiomyomatosis syndrome requiring subtotal esophagectomy for refractory gastroesophageal reflux disease after childhood partial esophagogastrectomy: a case report.

Gen Thorac Cardiovasc Surg 2020 Feb 22;68(2):199-203. Epub 2019 Nov 22.

Department of Gastroenterological Surgery, Saitama Medical University International Medical Center, Hidaka, Japan.

Alport-leiomyomatosis syndrome is an extremely rare condition occurring at a young age in which Alport syndrome coexists with diffuse leiomyomatosis of the digestive tract (primarily the esophagus). Most patients with diffuse esophageal leiomyomatosis require esophagectomy of variable extents. A 20-year-old man with Alport-leiomyomatosis syndrome was diagnosed with dysphasia and hematuria in childhood. Read More

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February 2020

Renal Arterial Doppler Resistive Index in Differentiating Obstructive and Non-Obstructive Hydronephrosis in Children at Tikur Anbessa Specialized Hospital, Ethiopia, October, 2018.

Ethiop J Health Sci 2019 Sep;29(5):591-596

Department of Radiology, School of Medicine, College of Health Sciences, Addis Ababa University, Ethiopia.

Background: Most congenital anomalies of the urinary tract present with hydronephrosis. Some are physiological while others pathological. Ultrasound, micturating cyst urethrography, dynamic renal scintigraphy, intravenous urography, dynamic and static magnetic resonance urography are used for examination. Read More

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September 2019

Supernumerary kidneys: a clinical and radiological analysis of nine cases.

BMC Urol 2019 Oct 17;19(1):93. Epub 2019 Oct 17.

Department of Radiology, Medical University of Innsbruck, Anichstraße 35, 6020, Innsbruck, Austria.

Background: A supernumerary kidney (SK) is an additional kidney with its own capsule and blood supply that is not fused with the ipsilateral kidney (IK). Because individual case reports indicate a high morbidity rate, the aim of this retrospective study was a detailed analysis of this rare anatomical variant.

Methods: Our systematic imaging-based search for SKs, conducted in the period from 2000 and to 2017, yielded 9 cases in total (5 men, 4 women; mean age: 51. Read More

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October 2019

Moderate and severe fetal pyelectasis: Correlation between prenatal aspects and postnatal outcome.

J Neonatal Perinatal Med 2020 ;13(1):91-96

Department of Obstetrics and Gynecology, ASST Spedali Civili Brescia, University of Brescia, Italy.

Background: Renal pelvic dilatation (RPD) is a frequent finding in fetal ultrasound. The aim of the study is to correlate the prenatally detected moderate and severe pyelectasis with the postnatal outcome.

Methods: A retrospective analysis involving 90 cases of prenatally detected moderate and severe RPD referred to our prenatal diagnosis centre with 18 months of urological follow-up. Read More

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February 2021