MA, FRCS, Research Registrar in Urology.
The Value of Urethral Sphincter Electromyography in the Differential Diagnosis of Parkinsonism
Article first published online: 21 NOV 2008
British Journal of Urology
Volume 64, Issue 4, pages 360–362, October 1989
How to Cite
EARDLEY, I., QUINN, N. P., FOWLER, C. J., KIRBY, R. S., PARKHOUSE, H. F., MARSDEN, C. D. and BANNISTER, R. (1989), The Value of Urethral Sphincter Electromyography in the Differential Diagnosis of Parkinsonism. British Journal of Urology, 64: 360–362. doi: 10.1111/j.1464-410X.1989.tb06043.x
- Issue published online: 21 NOV 2008
- Article first published online: 21 NOV 2008
Summary— A series of 54 patients presenting with parkinsonism underwent clinical assessment and urethral sphincter electromyography (EMG).
After clinical assessment, 26 were thought to be suffering from probable multiple system atrophy (MSA), 15 were thought to have possible MSA and 13 were diagnosed as having probable idiopathic Parkinson's disease (IPD).
Of those with probable MSA, 16 were found to have an abnormal urethral sphincter EMG. In the group with possible MSA, only 5 patients had an abnormal EMG while in the group with probable IPD, only 1 patient had an abnormal EMG.
It was concluded that urethral sphincter electromyography provides a useful method of distinguishing between idiopathic Parkinson's disease and multiple system atrophy. It also provides a means of identifying those patients with parkinsonism whose incontinence may well be worsened, or in whom incontinence may develop following lower urinary tract surgery.