Normal urodynamic parameters in women: part II--invasive urodynamics.
OBJECTIVE
This literature review, providing reference ranges of normal variability in urodynamic parameters, is the second part of a two-part article. The first part addresses non-invasive urodynamics (UDS), while the second part addresses invasive techniques.


METHODS
Data were obtained through MEDLINE from articles published between January 1956 and February 2011, International Continence Society meeting abstracts, and standardization reports. Search terms included cystometry, urethral pressure profilometry, leak point pressure, video UDS, normal volunteer, pressure flow studies, and electromyography.


RESULTS
Normal values varied widely in the literature. However, with the help of clinical data, it was possible to define "normality" ranges for most of the different parameters.


CONCLUSIONS
Urodynamic evaluation of lower urinary tract (LUT) function is not a physiological test. However, it is still the best available tool for LUT function assessment. Even if normality in UDS can be defined, tests must always be interpreted against patient characteristics, complaints, and symptoms.
Department of Urology, Jewish General Hospital, McGill University, Montreal, Quebec, Canada.
Wally
W
Mahfouz
Tala
T
Al Afraa
Lysanne
L
Campeau
Jacques
J
Corcos
D003950:Diagnostic Techniques, Urological; D004576:Electromyography; D005260:Female; D006801:Humans; D012016:Reference Values; D014555:Urination Disorders / Q000175:diagnosis*; D014563:Urodynamics