A multicentre European study has indicated that wireless capsule endoscopy (WCE) is safe, practical and useful in children as young as 18 months. Gastroenterologists in nine hospitals successfully applied WCE in 83 children aged from 1.5 to 7.9 years. While with sufficient coaxing, about 25% of children older than four were able to swallow the WCE device. The remainder required the device to be placed endoscopically.