Intradetrusor onabotulinumtoxinA injections for refractory neurogenic detrusor overactivity incontinence: do we need urodynamic investigation for outcome assessment?

Urinary continence is not sufficient for outcome assessment after intradetrusor onabotulinumtoxinA injections, as high intravesical pressures threatening the upper urinary tract may be missed in a relevant proportion of continent patients. Therefore, we strongly recommend UDI as a routine part of the follow-up.