They would likely go for the suprapubic catheter first, and use the temporary sphincterotomy (with botox) before considering the permanent one.Out of curiosity, did the doctors ever mentioned anything about what if there was too much trauma from intermittent catheterization ? That they might be willing to perform a sphincterectomy in this case?
I'm asking because my biggest fear is ending up like that, i had a completely unresponsive bladder once, couldn't get sphincter open either then. It was frightening.
Since such situation is last resort and extreme, I'd think they'd consider making life more comfortable by removing the blockade if catheterization is no longer possible, but I'm not sure.