Cystometry

Abstract

Cystometry may be likened to a reflex hammer applicable to the diagnosis of neurologic or neurosurgical entities whose presence is made known by disturbances of vesical function. Cases are cited to show that this urologic approach to neurologic investigation gives considerable information to the examiner who suspects disease of the lumbosacral cord and its cortical or subcortical connections. Equipment necessary and technique required for its performance possess the advantage of simplicity. Failure to realize the value of information gained lies more with the examiner and the nature of his interpretation rather than with any intrinsic fault in the test itself. The curves derived from cystometry cannot in themselves yield a final diagnosis like the tracing of an ecg., which may give determinative information. The cystometric curve is only a part of a comprehensive study of the patient, and must be interpreted in context. It cannot be divorced from a complete survey of the patient, nor can it be separated from the vagaries introduced by the experience of the individual examiner. The acquisition, however, of knowledge of diagnostic, therapeutic, and prognostic significance is ample reward for proficiency in its use.