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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.

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

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.