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Pain Med. 2012 Apr;13(4):596-603. doi: 10.1111/j.1526-4637.2012.01343.x. Epub 2012 Mar 5.

Response to pudendal nerve block in women with pudendal neuralgia.

Author information

1
School of Women and Children, University of New South Wales, Sydney, Australia. thierryvancaillie@mac.com

Abstract

OBJECTIVE:

To examine the evolution of pain and the duration of numbness after neural blockade of the pudendal nerve in women with pudendal neuralgia and correlate with clinical and historical data.

DESIGN:

Prospective, single arm, open label study.

SETTING:

University hospital and outpatient clinic.

SUBJECTS:

Eighty-two adult female patients were recruited from November 8, 2008 to February 14, 2010. Patients were selected based on the presence of spontaneous or provoked pain in the distribution of the pudendal nerve.

INTERVENTIONS:

Subjects underwent a standardized pudendal nerve block.

OUTCOME MEASURES:

Visual analog pain scores and the presence of numbness were recorded before and for 64 hours after the pudendal nerve block. A complete clinical history and examination were documented.

RESULTS:

Sixty-six patients completed the study. About 86.9% had a reduction in one or more pain symptom, while 44.3% found that more than one of their pain symptoms did not return. About 69.7% of patients reported numbness lasting up to 16 hours or longer. Previous gynecological surgery was recorded in 75.8%, previous traumatic obstetric events in 47.0% of cases. Prolonged history of pain correlated with a reduced chance of positive outcome of the pudendal nerve block.

CONCLUSION:

In patients with pudendal neuralgia, the pudendal nerve block has a variable response, but may have a beneficial effect in a subset of women. Surgical and obstetrical trauma are common historical antecedents.

[Indexed for MEDLINE]

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