A case series has been published looking at a preliminary group of pediatric patients who received quadratus lumborum catheters as proxy for epidurals. All catheters functioned successfully and were in place for a median of 79.3 h. Other than early inadvertent removal of two catheters, no adverse effects were noted.

Read the paper here: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9635806/pdf/jocmr-14-425.pdf