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Paediatric spinal anaesthesia: Difference between revisions
→ANATOMICAL CONSIDERATIONS
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The distance between the skin and the subarachnoid space is influenced by age – from 10 to 15mm in newborns.<ref>Blaise GA, Roy WL. Spinal anaesthesia for minor paediatric surgery. Canadian Journal of Anaesthesia 1986; 32: 227-30.</ref><sup>,</sup> The distance between skin and subarachnoid space can be related to height or weight using the formulae: | The distance between the skin and the subarachnoid space is influenced by age – from 10 to 15mm in newborns.<ref>Blaise GA, Roy WL. Spinal anaesthesia for minor paediatric surgery. Canadian Journal of Anaesthesia 1986; 32: 227-30.</ref><sup>,</sup> The distance between skin and subarachnoid space can be related to height or weight using the formulae: | ||
:Distance from skin to subarachnoid space (cm) = 0. 03 x height (cm) | :<b>Distance from skin to subarachnoid space (cm) = 0. 03 x height (cm)</b> | ||
:Distance from skin to subarachnoid space (mm) = [2 x weight (kg)] + 7(mm)<ref> | :<b>Distance from skin to subarachnoid space (mm) = [2 x weight (kg)] + 7(mm)</b><ref>Arthurs, Murray M, Zubier M, Tooley J, Kelsall W. Ultrasonographic determination of neonatal spinal canal depth. Archives of Disease in Childhood - Fetal and Neonatal Edition 2008; 93: 451-4.</ref><sup>,</sup> | ||
The subarachnoid space in newborns is very narrow (6 to 8mm) and successful lumbar puncture in this population requires great precision and avoidance of lateral deviation. | The subarachnoid space in newborns is very narrow (6 to 8mm) and successful lumbar puncture in this population requires great precision and avoidance of lateral deviation. | ||