I read with interest the report of Tan and Trinca regarding the belligerent transversus abdominus plane catheter. I found myself precariously perched on the edge of my chair awaiting the final paragraphs to read an informative discussion. However what I was steeling myself for was not so much the excellent discussion on the topic of how, but rather, I was eager for a discussion about the where. Where was the justification regarding safety for the dose of local anaesthetic administered using a technique that has a paucity of evidence to support efficacy? The four-day infusion of ropivacaine via the two catheters totalled 32 mg per hour.
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