ABSTRACT
Historically, chronic urogenital and pelvic pain, because of its severe and intractable nature, has been the focus of many interventions. The objective of these was to block pain transmission to the brain from its site of origin. These interventions were conceived on the basis of the known innervation of the area using the Cartesian model. Although such local blocks can be very effective, for example, in pain from local malignancy, they have, in general, been found to be short lived or ineffective in most other instances.
