Between 2000 and 2008 there was a significant increase in computerized tomography use for the emergency evaluation of patients with flank pain.
- Authors performed a retrospective, cross–sectional analysis of emergency department visits using data on 2000 to 2008 from the National Hospital Ambulatory Medical Care Survey.
- Specific visits for a complaint of flank or kidney pain were further analyzed.
- During the study period there was a significant increase in computerized tomography use (p <0.0001) and a significant decrease in x–ray use (p = 0.035) while ultrasound use remained stable (p = 0.803).
- During that period the proportion of patients with flank pain who were diagnosed with a kidney stone remained stable at approximately 20% (p = 0.135).
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