COMPARISON OF RIGISCAN AND SLEEP LABORATORY NOCTURNAL PENILE TUMESCENCE IN THE DIAGNOSIS OF ORGANIC IMPOTENCE

Citation
Mr. Licht et al., COMPARISON OF RIGISCAN AND SLEEP LABORATORY NOCTURNAL PENILE TUMESCENCE IN THE DIAGNOSIS OF ORGANIC IMPOTENCE, The Journal of urology, 154(5), 1995, pp. 1740-1743
Citations number
17
Categorie Soggetti
Urology & Nephrology
Journal title
ISSN journal
00225347
Volume
154
Issue
5
Year of publication
1995
Pages
1740 - 1743
Database
ISI
SICI code
0022-5347(1995)154:5<1740:CORASL>2.0.ZU;2-8
Abstract
Purpose: We evaluated the relative use of RigiScan measurement of rad ial rigidity compared to sleep laboratory measurement of axial rigidit y and trained observer determination of erectile function in the diagn osis of organic impotence. Materials and Methods: A total of 28 patien ts underwent simultaneous 2-night formal sleep laboratory nocturnal pe nile tumescence and RigiScan monitoring. Standard normal values for ra dial rigidity and axial rigidity were tested for accuracy in predictin g normal nocturnal penile tumescence compared to trained observer dete rmination of the adequacy of an erection for penetration. Results: Rig iScan tip measurements correlated poorly with buckling pressure, while base measurements strongly correlated (p = 0.0005). Observer determin ation of a functional erection was strongly associated with tip (p = 0 .002), base (p = 0.0005) and buckling pressure measurements (p = 0.000 5). Using observer determination as the gold standard receiver operati ng curves were generated to select RigiScan base and buckling pressure measurements that predicted functional erections with the highest sen sitivity and specificity. Conclusions: RigiScan is a useful tool for m easuring nocturnal penile tumescence. However, base measurements are m ore accurate than tip measurements for evaluating erectile function. T he currently accepted level of rigidity used to define a normal erecti on (70% or greater) overestimates organic erectile dysfunction.