ureteric jet

This study, conducted over 4 years in Baghdad, Iraq, aimed to determine the importance of ureteric jet assessment in medical expulsive therapy (MET) for distal ureteral stones. A total of 156 patients with distal ureteral stones (≤ 10 mm) participated, and their ureteric jets were observed using a color Doppler scanner before and after 2 weeks of MET. The main focus was the success rate of stone expulsion. Our results showed that 50% of patients had detectable ureteric jets after 2 weeks of MET, and 21...

A spontaneous renal calyceal rupture in pregnancy is extremely rare and can be challenging to identify as its presentation can mimic other more common diagnoses, which can lead to a delay in management. Here, we describe an unusual case of renal calyceal rupture in a 24-year-old G2P0010 female with pregnancy at 26.5 weeks gestation age (WGA) who was admitted to the antepartum ward due to left flank pain and uterine contractions. A renal sonogram was performed, which revealed severe left hydronephrosis and the absence of the ipsilateral ureteral jet...

OBJECTIVE: To prospectively compare power Doppler ultrasound diagnostic performance with reference standard cystoscopy in evaluating ureteral patency in a population at high risk of ureteral lesions. METHODS: We analyzed 100 women who underwent pelvic organ prolapse repair. All ultrasound scans were obtained, at the end of the procedures, before cystoscopic evaluation. Bilateral simultaneous ureteral jet evaluation with power Doppler was performed at the level of the ureterovesical junctions with a pulse repetition frequency set to detect low flow for a maximum of 3 min...

OBJECTIVE: To our knowledge, there is no study in the literature so far to investigate the effect of silodosin therapy on the ureteric jet parameters. Therefore, the objective of this study was to investigate the effect of silodosin 8 mg/day for medical therapy of lower urinary tract symptoms (LUTS) on the color flow Doppler parameters and patterns of the ureteric jets. PATIENTS AND METHODS: This prospective cohort study included 34 male patients who presented to our outpatient clinic with the complaint of lower urinary tract symptoms (LUTS) and received silodosin 8 mg once a day as medical therapy...

PURPOSE: To evaluate the feasibility and usefulness of cine magnetic resonance urography (cine MRU) as a novel postoperative examination after upper urinary tract reconstruction surgery. METHODS: Ninety-six patients underwent cine MRU for postoperative evaluation between August 2015 and August 2020. The morphological observations included regular peristalsis, anastomosis, urine flow signals, and reflux. The quantitative evaluations included luminal diameter, peristaltic amplitude, contraction ratio, peristaltic waves, and ureteric jets...

OBJECTIVE: To compare pre-operative vitamin B2 versus intra-operative cystoscopy distension using 5% dextrose in water (D5W) for ureteric jet visualization during pelvic reconstructive surgery. DESIGN: Double-blinded, randomized controlled trial. SETTING: Three tertiary hospitals in Toronto, Canada. POPULATION: Adult women undergoing pelvic reconstructive surgery. METHODS: Patients were randomized to receive 100mg of vitamin B2 pre-operatively versus bladder distension with D5W intra-operatively...

OBJECTIVES: This study hypothesizes using color Doppler ultrasound to measure ureteral jet angles (UJA) as a diagnostic screening tool for reflux. METHODS: The present prospective cohort study included 122 patients and 238 renal unit pediatric patients suspected of VUR who presented to our hospital between 2019 and 2021. All patients underwent ultrasonography and VCUG, and the UJA was measured color Doppler evaluation of the ureteral jet. The UJA was compared with the VCUG findings in patients with and without reflux...

STUDY OBJECTIVE: To identify the relationship between patient position during surgery and time to confirmation of ureteral patency on cystoscopy. DESIGN: Randomized controlled trial. SETTING: Academic tertiary care medical center. PATIENTS OR PARTICIPANTS: A total of 91 adult women undergoing laparoscopic (either conventional or robotic) hysterectomy between February 2021 and February 2022 were randomized to intervention (n=45) or control (n=46)...

Ureteral stenosis is a comparatively rare complication following hematopoietic stem cell transplantation (HSCT). The etiology is still unclear and most believe that this may be due to the reactivation of BK virus in a state of immunodeficiency. In the later stages of ureteral stenosis with scarring, invasive interventions must be taken to relieve the hydronephrosis. Common treatments, such as D-J stent placement and permanent nephrostomy may not only entail the risk of infection, but also seriously affect the quality of life...

BACKGROUND: To assess the feasibility and usefulness of cine magnetic resonance urography (MRU) and Whitaker test as postoperative evaluation tools of ileal ureter replacement. METHODS: We retrospectively collected the medical records of 42 patients who underwent ileal ureter replacement between August 2015 and August 2020. The morphology, luminal diameter, amplitude, contraction ratio, peristaltic frequency, ureteral jets and peristalsis efficiency were recorded in cine MRU...

OBJECTIVES: To compare ureterovesical jet frequency in non-obstructed versus obstructed ureter secondary to ureteric stone using ultrasonography in patients presenting with ureteral stones. STUDY DESIGN:  Cross-sectional prospective study. Place of study and duration: Urology Department, The Kidney Centre Post Graduate Training Institute from May 16 to November 15, 2019. METHODS: This study included 97 patients having presented in the emergency department with acute renal colic and were diagnosed as having ureteral stones on a non-contrast-enhanced computed tomography (NCCT)...

BACKGROUND: Intraoperative evaluation of ureteral patency is often performed in gynecologic and urogynecologic surgery. There are many agents used to help assess patency, each with its own associated cost, ease of use, and adverse reactions. Some agents, such as dextrose, are used as instillation fluid to create a viscosity difference and aid visualization of a ureteral jet. Others, such as oral phenazopyridine or intravenous use of sodium fluorescein and indigo carmine, cause a color change of the urine to directly aid visualization of ureteral jets...

Ureteral injuries probably represent the most feared complication of benign hysterectomies. Lack of proper intraoperative detection causes diagnostic delay, which results in additional hospitalization, prolonged catheterization, and multiple additional procedures. However, the policy of universal cystoscopy is still under debate, owing to costs, increased operative time, lack of proper training, and risk of trauma. Intraoperative ultrasound assessment can offer a valid alternative for evaluating ureteral patency...

PURPOSE: To present the outcomes of revascularized pyeloureterocystoplasty with ureterocele unroofing in end stage bladder patients with duplex system and ureterocele. METHODS: Thirteen patients with obstruction of intrauterine outlet from an ectopic obstructive ureterocele were included. Fourteen units of duplex systems underwent upper pole partial nephrectomy in conjunction with augmentation revascularized pyeloureterocystoplaty and ureterocele unroofing. The anterior and lateral walls of the ureterocele were excised before cystoplasty, and the resultant edges of the posterior wall were sutured to the bladder epithelium...

Ureteral jets are visualized with ultrasound as echogenic streams extending from the ureterovesicular junction into the urinary bladder. In clinical practice, diuretics are sometimes administered to increase visibility of ureteral jets, however this has not been well described in the veterinary literature. The purpose of this prospective, crossover study was to describe the normal morphology of canine ureteral jets, determine an optimal protocol for diuretic administration to increase visibility of ureteral jets, and confirm in vitro the effect that differences in specific gravity and velocity have on visibility...

INTRODUCTION AND HYPOTHESIS: To determine if administration of a standard 400 mg oral dose of riboflavin (vitamin B2) was comparable to phenazopyridine (pyridium) for evaluating ease of visualization of ureteral jets at the time of cystoscopy. METHODS: A three-arm double-blinded, randomized controlled study was performed consisting of thiamine as placebo, phenazopyridine, and riboflavin. Agents were administered the morning of surgery prior to surgical procedure...

PURPOSE: To examine the efficacy of ureteral jet flow measured by Doppler ultrasonography (USG) together with radiological parameters obtained by non-contrast enhanced computed tomography (CT) in predicting whether a ureteral stone is impacted. MATERIAL-METHOD: A total of 178 patients that met the criteria were included in the study. Stone size, location, grade of hydronephrosis, HU values of the stone and the proximal and distal parts of the stone, and ureteral wall thickness (UWT) were obtained from non-contrast enhanced abdominal CT images...

Objectives: To evaluate the safety and efficacy of ultrasound (US) and primary ureteroscopy (URS) in the management of symptomatic obstructive ureteric stones during pregnancy. Patients and Methods: A prospective multicenter study was performed between June 2013 and December 2019, including all consecutive pregnant patients admitted to three urology centers with intractable renal colic with obstructed ureter secondary to obstructive ureteral calculi. Color Doppler ultrasound was used to evaluate renal Resistive Index (RI) and ureter jet...

AIM: To investigate the diagnostic value of computed tomography (CT) urography findings of anterior nutcracker syndrome (NCS). MATERIALS AND METHODS: The study included patients with left renal vein (LRV) compression at the aortomesenteric portion at CT urography who underwent renal venography or cystoscopy. Patients with a renocaval pressure gradient of ≥3 mmHg on renal venography or bloody urine jetting from the left ureteral orifice on cystoscopy were defined as the NCS group; the remaining patients comprised the non-NCS group...

PURPOSE: Determine the confidence level and ability of first year medical students to identify abdominal structures using a wireless portable ultrasound scanner. METHODS: The students were assessed for their confidence and ability to perform abdominal ultrasound. The 5-point Likert survey included questions on their perception about ultrasound as a resource for learning anatomy, physical examination skills, and the quality of the pre-session instructions. Data was also recorded by the faculty about the students' ultrasound skills and confidence...