Rapid Cystometry and Sacral-Evoked Response in the Diagnosis of Peripheral Bladder and Sphincter Denervation

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Abstract
Rapid cystometry and sacral-evoked responses were used in 25 patients presenting with peripheral nerve lesions affecting the bladder. Type A contractions were found on rapid cystometry in 87% of the patients, while these waves were only occasional and inconsistent in 79 controls. The efficiency of this test to demonstrate sacral denervation was 88%. Sacral-evoked response showed an increased latency or absence of response in 95% of the patients. These tests are proposed as useful clinical tools for the diagnosis of a peripheral sacral nerve lesion.