AB044. 96. The role of nerve block as a diagnostic tool in pudendal nerve entrapment
Colorectal Session

AB044. 96. The role of nerve block as a diagnostic tool in pudendal nerve entrapment

Patrick P. Higgins1, Edward Dickson2, Aisling M. Hogan1,2, Ian Lindsey2

1Department of Colorectal Surgery, University College Hospital Galway, Galway, Ireland; 2Department of Pelvic Floor Surgery, Oxford University Hospital, Oxford, UK


Background: Pudendal nerve entrapment (PNE) is a disabling condition which is notoriously difficult to diagnose and treat. A 5-point Nantes Criteria including a diagnostic pudendal nerve block is widely used to allow identification of patients likely to benefit from the definitive but invasive pudendal nerve release. The aim of this study was to determine the role of pudendal nerve block in diagnosis and management of PNE.

Methods: Retrospective analysis was performed of a prospectively maintained database examining outcomes of recipients of diagnostic pudendal nerve block in a quaternary referral centre over a 5-year period [2012–2017]. Primary outcome was relief of chronic intractable pain. Secondary outcomes were referral patterns for nerve release, demographics and complication rates. Statistical analysis was performed using SPSS v 24.

Results: A total of 77 patients were included. Mean age was 57.27±13.55 years. A majority were female (n=62, 80.5%). Pain was experienced by 47/76 (68.1%). Of 37 patients (52.9%) referred for surgery, 20 underwent surgical decompression with 60% success rate (n=12). Complication rate was 3.9% (All Clavien Dindo 1).

Conclusions: Pudendal nerve injection is a safe procedure that can provide diagnosis of and transient relief from this debilitating problem. This technique helps isolate patients suitable for referral for pudendal nerve decompression.

Keywords: Pudendal nerve entrapment (PNE); injection pudendal nerve entrapment (injection PNE); neuralgia pelvic floor


doi: 10.21037/map.2018.AB044


Cite this abstract as: Higgins PP, Dickson E, Hogan AM, Lindsey I. The role of nerve block as a diagnostic tool in pudendal nerve entrapment. Mesentery Peritoneum 2018;2:AB044. doi: 10.21037/map.2018.AB044