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Paediatric anaesthesia · Nov 2005
Caudal injectate can be reliably imaged using portable ultrasound--a preliminary study.
- Steven A Roberts, Velu Guruswamy, and Ignacio Galvez.
- Jackson Rees Department of Anaesthesia, The Royal Liverpool Children's NHS Trust, Alder Hey Hospital, Liverpool, UK. issus9@blueyonder.co.uk
- Paediatr Anaesth. 2005 Nov 1;15(11):948-52.
BackgroundCorrect caudal cannula placement is essential for block success and the avoidance of complications. The aim of this study was to assess the use of a saline injection test bolus with ultrasound (US) imaging to identify correct cannula placement for caudal anesthesia.MethodsA prospective observational study of 60 children undergoing caudal anesthesia. A Sonosite 180 Plus (Sonosite Inc., Bothwell, WA) was used to image the spine and look for caudal space expansion secondary to saline injection.ResultsSaline test bolus correctly identified position in 96.5% of all subjects, and was 100% successful in children under 2 years of age.ConclusionsThese preliminary results suggest saline test bolus under US imaging is a reliable indicator of correct cannula position for caudal block. We found it safe, quick to perform, and provided additional useful information.
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