Gourlay K, Splinter G, Hayward J, et al. - By analyzing all emergency department patients with CT confirmed renal colic at six hospitals in two cities over one-year, researchers investigated if pain severity correlates with stone size, as well as they assessed its usefulness in predicting crucial results. They analyzed 2,206 patients, 68% men, with a mean age of 49 years. A sensitivity and specificity of 52.0% and 45.3%, respectively, of severe pain for larger stones > 5mm was evident. Following multivariable adjustment, a weak negative link between pain severity and stone width was identified. Findings showed no utility of pain severity in predicting stone size or renal colic outcomes. A larger stone or a worse prognosis was not suggested by more severe pain.