The Medtronic InterStim test stimulation lead kit manual stated that “Of the 260 patients (45.0 %) who qualified for implantation, 169 (65.0 %) had a successful result (minimum of 50 % improvement in dysfunctional voiding symptoms) during their first test stimulation procedure. Of the remaining 91 patients, 56 (21.5 %) obtained a successful result during a second test stimulation, and 35 (13.5 %) obtained a successful result during three or more test stimulations. Reasons for repeat test stimulation procedures included inadequate responses to test stimulation or technical problems …. The safety and effectiveness of this therapy has not been established for pediatric use (patients under the age of 16), patients with neurological disease origins, such as multiple sclerosis or diabetes, and bilateral stimulation”.