from an existing database. Patients were contacted via email, directed to an online survey, then contacted again via follow-up telephone call for purposes of answering questions or providing survey clarification. 51 patients (42 females, 9 males, mean age 58.1 ± 12.7 [range, 28-76] years) completed a 22-question standardized survey comprised of consensus recommended outcome instruments for patients who undergo an intervention in the setting of chronic pain. The results were correlated with baseline values and characteristics from the medical record. The electronic medical record was further scrutinized for evaluation of procedural technical success and/or procedure related complications, as defined by the SIR. Analyses of changes in baseline pain intensity and multiple variable correlation were performed. Patients were classified as "responders" or "non-responders" for purposes of data analysis and stratification based on the Patient Global Impression of Change (PGIC) Scale and a specific survey question asking whether participants would undergo the original procedure again, if given the chance.Results: The mean time to follow-up post procedure was 1.5 ± 0.9 years (range, 63 days-3.6 years). The mean duration of patient symptoms prior to cryoablation was 8.4 years ± 7 years (range, 60 days-32 years). The overall mean change in baseline pain intensity for the entire group per Visual Analog Scale was -2.5cm [-3.2,-1.7], and the mean change in baseline pain intensity for the responder group (63%) was -3.3cm [-4.1,-2.5], both of which were statistically significant (p<0.0001). There were no procedure related complications. The incidence of potentially unwanted symptoms following pudendal nerve destruction was 12% (sexual), 10% (urinary), and 1% (fecal). Conclusions: Percutaneous CT-guided cryoablation of the pudendal nerve is safe and efficacious but is associated with potentially unwanted sequelae that should influence patient selection.
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