RE: Yamada K, Ishihara Y, Saito T: Relief of intractable perineal pain by coccygeal nerve block in anterior sacrococcygeal ligament after surgery for rectal cancer.J Anesthesia (1994)8:52–54

Patt, Richard B.; Plancarte, Ricardo

doi:10.1007/bf02480085

Cited by 2 publications

(1 citation statement)

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“…In coccygodynia, chronic irritation of the coccygeal nerves causes increased sensitivity of the ganglion impar and somatosensory system 15. Injection given during GIB may provide a secondary effect by blocking the anterior branches of the coccygeal nerves running on the anterior aspect of the sacrococcygeal junction 16. Steroids and local anesthetics are used to suppress the inflammatory response due to chronic irritation and reduce pain in GIB.…”

Section: Discussionmentioning

confidence: 99%

Predictive factors affecting treatment success in ganglion impar block applied in chronic coccygodynia

Celenlioglu

Sir

2022

Reg Anesth Pain Med

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BackgroundThis study aimed to determine the predictive factors affecting the success of ganglion impar block applied in chronic coccygodynia.MethodsPatients who received ganglion impar block to treat coccygodynia between January 1, 2018 and January 1, 2021 were retrospectively screened. Of the 195 patients, 102 met the final analysis criteria and were included in the study. Demographic data, coccygodynia etiology, coccygodynia symptom duration, history of coccyx fracture, regular opioid use, and presence of other musculoskeletal chronic pain conditions accompanying coccygodynia were obtained from patient records. In addition, coccyx radiography was examined, and coccyx curvature type, permanent subluxation, and posterior spicule presence were evaluated. The criterion for treatment success was set as ≥50% reduction in Numerical Rating Scale pain scores in the third month after treatment.ResultsTreatment was successful of the patients in 69.6% (95% CI 60.4% to 78.7%). A significant cut-off value (24.5 months) was determined for coccygodynia symptom duration using receiver operating characteristic analysis. Symptom duration above the cut-off value was defined as prolonged symptom duration. Multivariable logistic regression analysis was performed to determine the predictive factors affecting treatment success in the third month after injection. In the final model, the presence of permanent subluxation (yes vs no), and the prolonged symptom duration (yes vs no) were found to have significant effects on treatment success (OR 9.56, 95% CI 1.44 to 63.40, p=0.02; OR 137.00, 95% CI 19.59 to 958.03, p<0.001).ConclusionTreatment success of ganglion impar block for coccygodynia is high. However, longer preprocedure symptom duration and the presence of permanent subluxation were associated with a decrease likelihood of treatment success.

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Section: Discussionmentioning

confidence: 99%