Midazolam Enhances Ureter Visualization in Children Undergoing Magnetic Resonance Urography

Magnetic Resonance Urography (MRU) is a popular method for identifying uropathies in children. Some children are not cooperative for such examinations and are sedated. We decided to evaluate the effects of midazolam as a sedative drug on ureter visualization in patients undergoing MRU. The study was conducted in Paytkaht Medical Imaging Center, Tehran, Iran. Two hundred and three children with urologic diseases were divided into 2 groups. Patients in the non-cooperative group received midazolam prior to MRU. Our findings showed that non-cooperative children had a better ureter visualization on MRU (P<0.01). Midazolam increased ureter visualization possibly by reduction in the ureter peristaltic motility. Therefore, its use could shorten the duration of MRU. It is beneficial to use midazolam in all children who undergo MRU.