SDN Members don't see this ad. (About Ads) Interesting perspective - not sure what I'll do if I end up at a place with residents in a few years. I spent some time at Brigham (where the above study was done) as a guest resident doing OB only, and they were big believers in CSEs, especially for residents just learning how to place epidurals. Part of the rationale was that inexperienced hands would be fooled less often by an equivocal LOR, and get fewer 17 ga wet taps, if they could pop a spinal needle through the and "probe ahead" a little. They felt, on the whole, that newbies got better and more reliable epidurals with the CSE technique. Presently I don't supervise/direct CRNAs and there are no residents around. Easier to have faith in a catheter I've placed than some unknown.