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Background: Ureteric colic is a common emergency urological presentation [1]. When operative intervention is required, retrograde ureteroscopy is the most common approach. There are multiple treatment strategies including primary ureteroscopy (URS), staged ureteroscopy, and deferred ureteroscopy following ureteric stent placement. The approach is based on a number of clinical and stone factors. This study assesses the factors which predict stone clearance at the initial procedure. Aims: All patients diagnosed with an obstructing ureteric stone who were managed operatively in a consecutive 12-month period were included. Patients were evaluated for stone clearance following a single or multiple procedures. A number of factors including stone size, location, gender, age and pre-operative laboratory results were evaluated for association with stone clearance at index procedure. Multivariate logistic regression analyses were performed to produce odds ratios (OR) with confidence interval (CI) at 95% and significance values P < 0.05. Results: One hundred and seventy patients were included in the final analysis. Stone clearance following the index procedure was achieved in 57% (n = 100) of patients. Predictors of successful stone clearance at index procedure were stone size < 6 mm, male gender and distal stone location (p < 0.05). Proximal stone location, stone size > 10 mm and elevated c-reactive protein (CRP) were associated respectively with multiple procedures to achieve stone clearance (p < 0.05). Conclusions: Acute ureteric stones can be managed with a number of treatment strategies. This study identifies factors which predict stone clearance at index procedure. These results will help urologists accurately counsel patients when undertaking operative management for ureteric colic. [ABSTRACT FROM AUTHOR]

Objectives: Evaluation of safety, efficacy, and feasibility of emergency extracorporeal shockwave lithotripsy (eESWL) in combating obstructing stones with colic on emergency basis. Materials and methods: From November 2019 to November 2021, 102 subjects underwent emergency ESWL for obstructing ureteric and renal stones with colic within 24 h of presentation. Results: Patients in this study belonged to age group of 18–67 years with mean being 39 years consisting of 85 males and 22 females (M:F = 85:22). Mean stone dimensions were 8.26 mm in length and 7.65 mm in width. A total of 42 patients had their stone in kidney or upper ureter while 24 patients had stone in mid ureter and remaining patients (n = 36) had stone in lower ureter. About 65 patients had their stone completely cleared after single ESWL session while 20 patients required multiple sessions to achieve complete clearance. Of these 17 patients (16.67%) were not rendered stone free even after three sessions and had to undergo ureteroscopic lithotripsy (URSL). Overall Stone Free Rate (SFR) was 83.33%. For stone attenuation of ⩽900 HU, SFR was 97.18% while for >900 HU it was only 51.61%. Conclusion: eESWL is safe, feasible, and efficacious noninvasive alternative for definitive management of obstructing ureteral and renal stones with colic as far as stone clearance and rapid and definitive pain relief are concerned and that too with very minimal morbidity without the need for admission and hence can reduce the prolonged waiting period for endoscopic stone surgery in any high-volume tertiary care hospital. Length, width, and attenuation of stone were found to be the main factors dictating the success of eESWL. [ABSTRACT FROM AUTHOR]

Objective: To determine the diagnostic value of ultrasound signs of urinary stones less than or equal to 10 mm and to determine clinico-radiological variants of ureteric colic. Methods: A total of 455 ultrasound investigations were performed in patients referring to emergency department with urolithiasis and symptoms suspected of ureteric colic between January 2021 and May 2021. In addition to microscopic evaluation of urine sediment to detect different crystals and non-contrast spiral computed tomography to detect stones, B-mode and color Doppler sonography was performed to assess the presence of acoustic shadow (AS) and twinkle artifacts (TA) as possible signs of stone(s) in ureter. Results: While the sensitivity and specificity of AS and TA were higher than 90% in patients with stones greater than 5 mm; positive prognostic values of these parameters were found to be extremely low for stones with sizes of 1–3 mm with specificity and sensitivity values not exceeding 53%. The sensitivity and specificity of AS and TA in the upper and lower ureters were higher for stones greater than or equal to 5 than for compared to those less than 5 mm. At the same time, the diagnostic values of TA and AS for middle ureter stones were very limited. The most prevalent clinico-radiological variants of ureteric colic were types I, III, and V being observed in 39%, 28% and 21% cases, respectively. Conclusion: Our results demonstrate that TA and AS parameters seem to have a very low sensitivity and specificity in the diagnosis of urinary stones less than 5 mm. The diagnostic value of TA and AS increase significantly in stones greater than or equal to 5 mm. Therefore, clinicians need to be very careful for overestimating the diagnostic values of TA and AS for stones less than 5 mm and non-contrast spiral computed tomography must be the method of choice for patients presenting to emergency department with ureteric colic.

Objectives: To develop a nomogram that could predict spontaneous stone passage (SSP) in patients presenting with acute ureteric colic who are suitable for conservative management. Patients and Methods: A 2517 patient dataset was utilised from an international multicentre cohort study (MIMIC, A Multi‐centre Cohort Study Evaluating the role of Inflammatory Markers In Patients Presenting with Acute Ureteric Colic) of patients presenting with acute ureteric colic across 71 secondary care hospitals in the UK, Ireland, Australia, and New Zealand. Inclusion criteria mandated a non‐contrast computed tomography of the kidneys, ureters, and bladder. SSP was defined as the 'absence of the need for intervention'. The model was developed using logistic regression and backwards selection (to achieve lowest Akaike's information criterion) in a subset from 2009–2015 (n = 1728) and temporally validated on a subset from 2016–2017 (n = 789). Results: Of the 2517 patients, 1874 had SSP (74.5%). The mean (SD) age was 47 (14.7) years and 1892 were male (75.2%). At the end of the modelling process, gender: male (odds ratio [OR] 0.8, 95% confidence interval [CI] 0.64–1.01, P = 0.07), neutrophil count (OR 1.03, 95% CI 1.00–1.06, P = 0.08), hydronephrosis (OR 0.79, 95% CI 0.59–1.05, P = 0.1), hydroureter (OR 1.3, 95% CI 0.97–1.75, P = 0.08), stone size >5–7 mm (OR 0.2, 95% CI 0.16–0.25, P < 0.001), stone size >7 mm (OR 0.11, 95% CI 0.08–0.15, P < 0.001), middle ureter stone position (OR 0.59, 95% CI 0.43–0.81, P = 0.001), upper ureter stone position (OR 0.31, 95% CI 0.25–0.39, P < 0.001), medical expulsive therapy use (OR 1.36, 95% CI 1.1–1.67, P = 0.001), oral nonsteroidal anti‐inflammatory drug (NSAID) use (OR 1.3, 95% CI 0.99–1.71, P = 0.06), and rectal NSAID use (OR 1.17, 95% CI 0.9–1.53, P = 0.24) remained. The concordance‐statistic (C‐statistic) was 0.77 (95% CI 0.75–0.80) and a nomogram was developed based on these. Conclusion: The presented nomogram is available to use as an on‐line calculator via www.BURSTurology.com and could allow clinicians and patients to make a more informed decision on pursuing conservative management vs early intervention. [ABSTRACT FROM AUTHOR]

Background: Urolithiasis is a common urological presentation1. A total of 25–49 million people in Europe live with symptomatic stone disease, with the incidence increasing1. Aims: To examine length of stay (LOS) and transfer patterns for patients presenting with urolithiasis to Irish Model 2/3 hospitals without a specialist urology service, compared with those who present to a model 4 hospital with an on-site urology service. Methods: Using the National Quality Assurance & Improvement System (NQAIS), we assessed patients presenting with urolithiasis, nationally from January 2016 to December 2019. Results: During the study period, there were 11,856 emergency presentations with urolithiasis. A total of 6510 (54.9%) presented to model 4 hospitals, while 5346 (45.1%) presented to model 2/3 hospitals. A total of 874 (16.35%) patients required transfer from model 2/3 hospital to a model 4 hospital for further management. Those transferred from model 2/3 hospitals spent a mean of 3.68 days awaiting transfer and had a mean LOS of 3.88 days in the model 4 hospital. A total of 7.56 days compared with a mean LOS of 2.9 days for those presenting directly to a model 4 hospital. Conclusion: At a national level in Ireland, many patients with urolithiasis present to hospitals that are unable to cater for their needs. Patients presenting with urolithiasis to model 2/3 hospitals have significantly longer LOS compared with patients who present directly to a model 4 hospital. A formal 'stone pathway' is required to provide timely care for these patients2—such a pathway would provide better patient care and result in improved bed utilisation. [ABSTRACT FROM AUTHOR]

Objectives: To perform a systematic review to identify the clinical, fiscal and environmental evidence on the use of urological telehealth and/or virtual clinic (VC) strategies, and to highlight research gaps in this rapidly evolving field. Methods: Our PROSPERO‐registered (CRD42019151946) systematic search of Embase, Medline and the Cochrane Review Database was performed to identify original research articles pertaining to adult urology telehealth or VC strategies. Risk‐of‐bias (RoB) assessment was performed according to the Cochrane 2.0 RoB tool or the Joanna Briggs Institute Checklist for non‐randomized studies. Results: A total of 5813 participants were included from 18 original articles (two randomized controlled trials [RCTs], 10 prospective studies, six retrospective studies). Urology sub‐specialities comprised: uro‐oncology (n = 6); general urology (n = 8); endo‐urology (n = 2); and lower urinary tract symptoms and/or incontinence (n = 2). Across all sub‐specialties, prospective studies using VCs reported a primary median (interquartile range [IQR]) VC discharge rate of 16.6 (14.7–29.8)% and a primary median (IQR) face‐to‐face (FTF) clinic referral rate of 32.4 (15.5–53.3)%. Direct cost analysis demonstrated median (IQR) annual cost savings of £56 232 (£46 260–£61 116). Grade II and IIIb complications were reported in two acute ureteric colic studies, with rates of 0.20% (3/1534) and 0.13% (2/1534), respectively. The annual carbon footprint avoided ranged from 0.7 to 4.35 metric tonnes of CO2 emissions, depending on the mode of transport used. Patient satisfaction was inconsistently reported, and assessments lacked prospective evaluation using validated questionnaires. Conclusion: Urology VCs are a promising new platform which can offer clinical, financial and environmental benefits to support an increasing urological referral burden. Further prospective evidence is required across urological sub‐specialties to confirm equivalency and safety against traditional FTF assessment. [ABSTRACT FROM AUTHOR]

Objectives: To evaluate the clinical, fiscal and environmental impact of a specialist‐led acute ureteric colic virtual clinic (VC) pathway. Patients and Methods: All patients with uncomplicated acute ureteric colic, referred to a single tertiary centre, were prospectively entered into the study over a 4‐year period (January 2015–December 2018). Inclusion criteria were: low‐dose non‐contrast computed tomography of kidneys, ureters and bladder; white blood cell count <16 × 109/L; pain controlled; normal renal function; and no clinical concern. Primary outcomes were: time (days) from referral to VC outcome; VC outcome (discharge, further VC, face‐to‐face [FTF] clinic, extracorporeal shockwave lithotripsy [ESWL], ureterorenoscopy [URS], percutaneous nephrolithotomy [PCNL]); and adverse events (sepsis or obstruction). Secondary outcomes were patient and stone demographics, cost and environmental analysis. The minimum follow‐up was 3 months. Results: A total of 1008 patients entered the study, of whom 91.5% (n = 922) were of working age. The median (interquartile range) time from presentation to VC outcome was 2 (4) days. VC outcomes were as follows: 16.3% of patients (n = 164) were discharged; 18.2% (n = 183) were discharged after further VC; 17.2% (n = 173) underwent an intervention; and 48.4% (n = 488) were referred to an FTF clinic. Interventions comprised: PCNL 0.5% (n = 5); ESWL 7.7% (n = 78); and URS 8.9% (n = 90). Stone demographics were as follows: 570 patients (56.5%) had lower, 157 (15.6%) had upper, 96 (9.5%) had mid‐ureteric and 163 (16.2%) had renal calculi, and in 22 patients (2.2%) the stones had recently passed. The mean (sd) stone size was 3.5  (2.3) mm. Two adverse events (0.2%) were reported. Introducing a VC saved £145,152 for Clinical Commissioning Groups, the equivalent NHS tariff payment of performing 106 URS procedures or 211 ureteric stent insertions. Overall, 15,085 patient journey kilometres were avoided, equal to 0.70–2.93 metric tonnes of carbon dioxide equivalent production and the need to plant 14.7 trees to achieve carbon balance. Conclusion: A specialist‐led acute ureteric colic VC reduced time to treatment decision to a median of 2 days. This creates additional clinic capacity and reduces the fiscal burden of traditional clinics and their associated carbon footprint. [ABSTRACT FROM AUTHOR]

Omar Al Kadhi,1 Kate Manley,1 Madhavi Natarajan,1 Valmiki Lutchmedial,2 Abbi Forsyth,2 Kate Tabrett,2 Jonathan Betteridge,2 William Finch,3 Heinrich Hollis4 1Department of Urology, Norfolk and Norwich University Hospitals NHS Foundation Trust, 2Faculty of Medicine and Health Sciences, University of East Anglia, 3Department of Urology, 4Department of Emergency Medicine, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK Introduction: Renal colic is commonly encountered in the emergency department (ED). We validated a fast track renal colic (FTRC) initiative to decrease patient waiting times and streamline patient flow.Method: The FTRC pathway was devised according to the National Institute for Health and Care Excellence clinical summary criteria for the management of patients with suspected renal colic. ED triage nurses use the pathway to identify patients with likely renal colic suitable for fast track to analgesia, investigation and management. Investigations, diagnosis and patient demographics were recorded for 1157 consecutive patients coded as renal colic at a single-center ED over 12 months.Results: Three hundred and two patients were suitable for the FTRC pathway (26.1%), while 855 were seen by the ED clinicians prior to onward referral. Also, 83.9% of patients underwent computed tomography scan. In the FTRC group, 57.3% of patients had radiologically confirmed calculi versus 53.8% in the non-FTRC group (p=0.31). Alternative diagnoses among FTRC patients (2.6%) included ovarian pathology (n=1), diverticulitis (n=2) and incidental renal cell carcinoma (n=2), while 26.1% had no identifiable pathology. No immediately life-threatening diagnoses were identified on imaging. Computed tomography scans performed in the non-FTRC group identified two ruptured abdominal aortic aneurysms and alternative diagnoses (2.57%) including ovarian pathology (n=7), cholecystitis (n=2), incidental renal cell carcinoma (n=3) and inflammatory bowel disease (n=1); 31.2% identified no pathology. Time in ED and time to radiologist-reported imaging were lower for the FTRC group versus non-FTRC group (p

Purpose: Elderly patients with upper tract urothelial cancer (UTUC) may present with colic and microscopic haematuria, mimicking urolithiasis. Patients presenting to emergency departments with acute ureteric colic are investigated with a CT KUB. CT urography (CTU) identifies UTUC better than a CT KUB. Thus, there is a possibility that a CT KUB may miss UTUC.Methods: We studied patients aged 65 years or over presenting to the emergency department with ureteric colic and microscopic haematuria who had a CT KUB between January 2014 and October 2016. Patients who had both CT KUB and CTU were then compared to determine if CT KUB had missed a UTUC and if the diagnoses were concordant by the two tests. A radiologist independent from the reporting radiologists reviewed images as well as their reports. According to the Health Research Authority, England regulations, we did not obtain an ethical review on a voluntary basis for this retrospective study.Results: Four hundred eighty-five patients [228 (47.01%) male and 257 (52.99%) female] had a CT KUB scan over the 34-month period. Their mean age was 74 (SD 6.97) [males 73 (SD 6.42), females 75 (SD 7.42)] years. One hundred eighty-seven scans were normal. Ureteric calculi (167), renal calculi (58) and renal cysts (28) were most frequent diagnoses. The diagnosis was uncertain in 33 patients (6.8%) [16 (48.49%) males and 17 (51.51%) females]. The mean age of this group of patients was 74 (SD 6.64) [males 73 (SD4.43), females 74 (SD7.64)] years. These patients had a CTU for clarity. CTU identified one UTUC not identified by CT KUB (0.2%), corroborated the diagnosis of a ureteric tumour in one patient and excluded UTUC in two others. CTU diagnosed two new bladder tumours and an endometrial tumour. Diagnoses were concordant between CT KUB and CTU in 17 of 33 patients (51.5%).Conclusions: CT KUB scans for patients 65 years and over presenting with ureteric colic is justified. Only a small proportion of patients will subsequently require the higher radiation dose CTU as the probability of missing UTUC is low. [ABSTRACT FROM AUTHOR]

These guidelines have been developed by the British Association of Urological Surgeons to give a framework to clinicians, based primarily in the UK, for the management of patients presenting acutely with ureteric colic. They have been developed by consensus with reference to the American Urological Association/Endourological Society guidelines on the surgical management of stones and the European Association of Urology guidelines on urolithiasis, and adapted to the logistics of those practicing within the National Health Service. Grades of recommendation and levels of evidence are based upon the system adopted by the European Association of Urology. [ABSTRACT FROM AUTHOR]

Most ureteral stones can be observed with reasonable expectation of uneventful stone passage. When an active ureteral stone treatment is warranted, the best procedure to choose is dependent on several factors, besides stone size and location, including operators′ experience, patients′ preference, available equipment and related costs. Placement of double-J stent or nephrostomy tube represents the classical procedures performed in a renal colic due to acute ureteral obstruction when the conservative drug therapy does not resolve the symptoms. These maneuvers are usually followed by ureteroscopy or extracorporeal shockwave lithotripsy, which currently represent the mainstay of treatment for ureteral stones. In this review paper a literature search was performed to identify reports dealing with emergency management of renal colic due to ureteral stones. The main aspects related to this debated issue are analyzed and the advantages and disadvantages of each treatment option are carefully discussed.

Introduction and objectives: Admissions for ureteric colic are relatively common, with up to 80% of stones passing spontaneously. In patients with refractory pain, drainage with stenting, percutaneous nephrostomy or stone removal can be performed. Due to the financial restrictions of the NHS, it is paramount to ensure patients are receiving optimal cost-effective care. We present a cost effectiveness analysis between primary ureteric stenting and emergency ureteroscopic stone removal in patients with refractory pain secondary to acute ureteric calculi. Methods: Fifty patients were analysed who underwent either primary ureteric stenting or emergency ureteroscopic stone removal in our institution. Each group contained 25 consecutive patients. The primary outcomes compared were: time to stone-free status, number of hospital re-admissions, and overall cost of treatment until stone free. Results: Both stenting (n=25) and ureteroscopic stone removal (n=25) groups were comparable with respect to age, sex, stone size and location. The hospital re-admission rate secondary to stone-specific issues was significantly lower in the ureteroscopy group, two versus 20. Patients became stone free significantly quicker in the ureteroscopy group (2.5 days vs. 61.9 days). The total overall cost until being declared stone free was significantly lower in the ureteroscopy group (£3104 vs. £4041, P⩽0.001). Conclusions: This study highlights that those patients undergoing ureteric stenting take significantly longer to become stone free, leading to increased hospital re-admissions, potentially increased morbidity and inevitably greater cost implications. We advocate that primary ureteroscopic stone removal should be consider instead of ureteric stenting in patients with ongoing, painful ureteric colic. [ABSTRACT FROM AUTHOR]

Background It has been reported that three criteria (size of calculus ≥6 mm, visual analogue scale pain score at discharge ≥2 cm and location above mid-ureter; the Papa criteria) were sensitive for predicting patients who require intervention (surgery or lithotripsy) within 28 days of index emergency department ( ED) visit for ureteric colic. It was suggested that absence of these criteria identified a group for whom early follow-up may not be needed. No validation has been reported. We aimed to validate these criteria. Methods Retrospective cohort study of patients with clinical presentation of ureteric colic and radiologically proven renal tract stones. Data collected included demographics, clinical features, features of the stone, imaging results and 28-day outcome. Outcome of interest was performance of the Papa criteria for prediction of urological intervention by clinical performance analysis. We also undertook a post hoc analysis to identify predictors of urological intervention for the group overall and for the subgroup discharged from ED. Results Two hundred and twenty-four patients were studied (median age 49, 79% male) with 75 (33%) requiring urological intervention within 28 days. The presence of any of the Papa criteria had sensitivity for urological intervention of 83.9% (95% confidence interval ( CI) 71.2-91.9%) with specificity of 47.7% (95% CI 38.9-56.6%), positive predictive value of 40.9% (95% CI 31.9-50.4%) and negative predictive value of 87.3% (95% CI 76.8-93.7%). Nine patients with no Papa criteria had intervention: 12.7% (95% CI 6.8-22.4%). Conclusion The Papa criteria are not sufficiently accurate to determine which patients require intervention or a subgroup who do not need specialist urological follow-up. [ABSTRACT FROM AUTHOR]

Ureteric colic is a common presentation to acute emergency services. The gold standard test for the diagnosis of acute ureteric colic is a non-contrast computer tomography of the kidneys ureters and bladder (CT KUB). Non-steroidal anti-inflammatory drugs (NSAIDs) should be used as first-line analgesia, with studies showing that there is no role for steroid or phosphodiesterase-5 inhibitors. There is emerging evidence that a high body mass index (BMI) is a risk factor. The drugs used to facilitate stone passage are known as medical expulsive therapy (MET). The most evaluated being alpha-blockers. The Spontaneous Urinary Stone Passage Enabled by Drugs (SUSPEND) trial was designed to evaluate the use of MET (tamsulosin and nifedipine). This trial showed that there was no difference with MET and placebo for the spontaneous passage of ureteric stones. There is an emerging role for the use of primary ureteroscopy in the management of non-infective ureteric stones. [ABSTRACT FROM AUTHOR]

Background: Noncontrast computed tomography (CT) scan of the kidneys, ureter and bladder is the standard investigative modality for diagnosing and following up patients with urolithiasis. With each scan, a patient receives radiation of 18-34 mGy. Dose considerations become pertinent because of a 10% lifetime incidence rate and higher than 50% risk of recurrence, necessitating repeated imaging in the lifetime of a stone former. Hence, this study aimed to assess the sensitivity of "reduced-radiation" CT imaging by altering scan settings to lower than the "standard" norms., Materials and Methods: Altogether, 222 patients (255 "kidney-ureter" stone-bearing units or "renal units") with urolithiasis and patients undergoing CT for other reasons with incidental findings of renal/ureteric calculi between 2017 and 2019 were included. All patients were subjected to 3 sequential scans at tube current settings of 250 mA (CT-N/Standard), 100 mA (CT-100), and 50 mA (CT-50) at a constant voltage of 120 kV. Their clinicodemographic and radiological findings were recorded and assessed for significance., Results: Of the 255 renal units, 117 were between 30 and 44 years of age, 75% were men. Of the 255 patients, 178 (70.1%) reported a first stone episode and 77 had recurrence. Lower ureteric calculi were predominant (40.4%). All calculi were identified on CT-N; CT-100 failed to detect calculi in 1 patient, and CT-50 failed in 3 patients, where all calculi were <3 mm in size. Meanwhile, none were undetected among patients with obesity. The sensitivity was 99.61% for the CT-100 and 98.82% for the CT-50, which indicated a 2.5 and 5 times lower radiation and dose/length, respectively, than CT-N., Conclusions: The reduced-radiation CT scan is safe, sensitive, and accurate for the diagnosis and follow-up of patients with urolithiasis with significantly lower radiation exposures. Our study lays the foundation to accept low-dose CT in general and CT-50 in particular, as the new "standard of care," and attempt further dose reduction without loss of diagnostic efficacy., Competing Interests: No conflict of interest has been declared by the authors., (Copyright © 2022 The Authors. Published by Wolters Kluwer Health, Inc.)

The article presents a study which analyses the role of emergency ureteroscopy (URS) in the management of ureteric stones among 394 patients who underwent URS at Auckland City Hospital in Auckland, New Zealand between January 2010-December 2011. The study suggests that emergency URS is a feasible approach for the management of ureteric stones with low complications rate, particularly in younger, healthier patients.

Abstract: Objective: To determine the diagnostic accuracy of ultra-low dose contrast-enhanced CT (ULDCECT) and its ability to measure differential renal function (DRF) in patients presenting clinically with acute ureteric colic by comparison to IVU (using an equivalent radiation exposure) and DMSA, respectively. Patients and methods: Fifty-three patients presenting clinically with acute ureteric colic underwent IVU, ULDCECT and DMSA on the same day of their hospital admission. Diagnostic accuracy of ULDCECT and IVU was compared to interventional findings and clinical outcome. Estimation of DRF by ULDCECT was derived through measurement of enhancing renal volumes and DMSA. Results: ULDCECT had superior sensitivity (97%) and specificity (100%) in the identification of renal tract stone disease compared to IVU (84 and 95% respectively), with comparable radiation exposure (1.7mSv versus 1.4mSv). Furthermore, ULDCECT revealed non-urological pathology in eight patients (15%), including perforated abdominal viscus and acute appendicitis. There was a very good correlation of ULDCECT and DMSA-derived DRF (regression of near unity, Pearson''s correlation coefficient of 0.72 (p <0.0001)). Conclusion: ULDCECT provides diagnostically accurate imaging in patients presenting with acute ureteric colic and significantly outperforms IVU for a comparable radiation burden. Use of ULDCECT instead of conventional CT-KUB may significantly reduce lifetime radiation exposure of ureteric colic patients without loss of diagnostic accuracy. [Copyright &y& Elsevier]

Most ureteral stones can be observed with reasonable expectation of uneventful stone passage. When an active ureteral stone treatment is warranted, the best procedure to choose is dependent on several factors, besides stone size and location, including operators. experience, patients. preference, available equipment and related costs. Placement of double-J stent or nephrostomy tube represents the classical procedures performed in a renal colic due to acute ureteral obstruction when the conservative drug therapy does not resolve the symptoms. These maneuvers are usually followed by ureteroscopy or extracorporeal shockwave lithotripsy, which currently represent the mainstay of treatment for ureteral stones. In this review paper a literature search was performed to identify reports dealing with emergency management of renal colic due to ureteral stones. The main aspects related to this debated issue are analyzed and the advantages and disadvantages of each treatment option are carefully discussed. [ABSTRACT FROM AUTHOR]

Abstract: Renal stone disease accounts for a significant proportion of attendances to the urological, surgical and A&E departments. Consequently, it is highly likely that most trainees embarking on foundation training will encounter patients with renal stone disease either in the acute emergency setting or the outpatient setting. Knowledge of presenting features and treatment strategies is important in order to correctly manage these patients. This article focuses on the clinical presentation of renal stone disease and the clinical management of these patients. It also aims to create a stepwise sequence of scenarios, similar to how a foundation trainee would encounter a patient with renal stones. [Copyright &y& Elsevier]