Jacob K Goertz1, Seth Lotterman. 1. Department of Emergency Medicine, Long Island Jewish Medical Center, New Hyde Park, NY 11040, USA. JGoertz@nshs.edu
Abstract
OBJECTIVE: The aim of the study was to determine if the degree of hydronephrosis on focused emergency renal ultrasound correlates with kidney stone size on computed tomography. METHODS: A retrospective study was performed on all adult patients in the emergency department who had a focused emergency renal ultrasound and ureterolithiasis on noncontrast computed tomography. Severity of hydronephrosis was determined by the performing physician. Ureteral stone size was grouped into 5 mm or less and larger than 5 mm based on likelihood of spontaneous passage. RESULTS: One hundred seventy-seven ultrasound scans were performed on patients with ureteral calculi. When dichotomized using test characteristic analysis, patients with none or mild hydronephrosis (72.9%) were less likely to have ureteral calculi larger than 5 mm than those with moderate or severe hydronephrosis (12.4% vs 35.4%; P < .001) with a negative predictive value of 0.876 (95% confidence interval, 0.803-0.925). CONCLUSION: Patients with less severe hydronephrosis were less likely to have larger ureteral calculi.
OBJECTIVE: The aim of the study was to determine if the degree of hydronephrosis on focused emergency renal ultrasound correlates with kidney stone size on computed tomography. METHODS: A retrospective study was performed on all adult patients in the emergency department who had a focused emergency renal ultrasound and ureterolithiasis on noncontrast computed tomography. Severity of hydronephrosis was determined by the performing physician. Ureteral stone size was grouped into 5 mm or less and larger than 5 mm based on likelihood of spontaneous passage. RESULTS: One hundred seventy-seven ultrasound scans were performed on patients with ureteral calculi. When dichotomized using test characteristic analysis, patients with none or mild hydronephrosis (72.9%) were less likely to have ureteral calculi larger than 5 mm than those with moderate or severe hydronephrosis (12.4% vs 35.4%; P < .001) with a negative predictive value of 0.876 (95% confidence interval, 0.803-0.925). CONCLUSION:Patients with less severe hydronephrosis were less likely to have larger ureteral calculi.
Authors: Jennifer R Marin; Alyssa M Abo; Alexander C Arroyo; Stephanie J Doniger; Jason W Fischer; Rachel Rempell; Brandi Gary; James F Holmes; David O Kessler; Samuel H F Lam; Marla C Levine; Jason A Levy; Alice Murray; Lorraine Ng; Vicki E Noble; Daniela Ramirez-Schrempp; David C Riley; Turandot Saul; Vaishali Shah; Adam B Sivitz; Ee Tein Tay; David Teng; Lindsey Chaudoin; James W Tsung; Rebecca L Vieira; Yaffa M Vitberg; Resa E Lewiss Journal: Crit Ultrasound J Date: 2016-11-03
Authors: Brock Daniels; Cary P Gross; Annette Molinaro; Dinesh Singh; Seth Luty; Richelle Jessey; Christopher L Moore Journal: Ann Emerg Med Date: 2015-12-31 Impact factor: 5.721