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Mark Hallett, MD; Stuart Bauer, MD; Shahram Khoshbin, MD; Frances Dyro, MD

Arch Neurol. 1984;41(9):942-945.

Abstract
• The electromyographic responses in the external urethral sphincter to electrical stimulation of the pudendal nerve and stretch of the external sphincter were analyzed in a pediatric population; the population included a group with recurrent urinary tract infections and a group with complete or almost complete upper spinal cord lesions. Electrical stimulation produced a response of reflex nature mediated in the sacral spinal cord, frequently beginning with two components that could be individually characterized and that behaved similarly to a flexor reflex. The response produced by stretch appeared to be similar to that produced by electrical stimulation.

Author Affiliations
From the Urodynamics Division of the Children's Hospital Medical Center, Section of Neurology, Department of Medicine, Brigham and Women's Hospital (Drs Hallett, Khoshbin, and Dyro), and the Departments of Neurology (Drs Hallett, Khoshbin, and Dyro) and Urology (Dr Bauer), Harvard Medical School, Boston. Dr Hallett is now with the National Institute of Neurological and Communicative Disorders and Stroke, National Institutes of Health, Bethesda, Md.

Footnotes
Accepted for publication Sept 15, 1983.

Presented in part at meetings of the American Association of Electromyography and Electrodiagnosis, New Orleans, Oct 6,1979, and the American Urological Association, San Francisco, May 18, 1980.

Reprint requests to NINCDS, NIH, Bldg 10, Room 5N 226, Bethesda, MD 20205 (Dr Hallett).

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