Top

International Urogynecology Journal

Published in:

01-01-2014 | Original Article

Are the measurements of water-filled and air-charged catheters the same in urodynamics?

Authors: G. Alessandro Digesu, Alexandros Derpapas, Penny Robshaw, Gopalan Vijaya, Caroline Hendricken, Vik Khullar

Published in: International Urogynecology Journal | Issue 1/2014

Abstract

Introduction and hypothesis

The aim of our study was to compare air-charged and water-filled catheters simultaneously in the measurement of the intravesical, abdominal and detrusor pressure during urodynamic investigations.

Methods

Consecutive women with lower urinary tract symptoms, referred for urodynamics were prospectively studied. Readings of intravesical pressure (p_ves), abdominal pressure (p_abd) and detrusor pressure (p_det), recorded by both the air-charged and water-filled catheters, were displayed simultaneously and compared at the end of filling, on standing, on sitting prior to voiding and at the maximum involuntary detrusor contraction. The signals (pressures) recorded by both types of catheter were compared using the Bland–Altman plot and paired samples t test.

Results

Twenty women with a mean age of 49 (range 36–72) were recruited. One patient with normal urodynamics was excluded in view of the poor quality trace. At each of the four comparison points, the air-charged catheters consistently produced higher mean pressures than the water-filled catheters. There were wide variations in the difference between the readings produced by the two types of catheter.

Conclusions

Pressures measured using air-charged catheters are not comparable with water-filled catheters and are therefore not interchangeable. Caution must be used when comparing urodynamic parameters using air-charged and water-filled catheters.

Al Afraa T, Mahfouz W, Campeau L, Corcos J (2012) Normal lower urinary tract assessment in women: I. Uroflowmetry and post-void residual, pad tests, and bladder diaries. Int Urogynecol J 23(6):681–685

Mahfouz W, Al Afraa T, Campeau L, Corcos J (2012) Normal urodynamic parameters in women: part II—invasive urodynamics. Int Urogynecol J 23(3):269–277PubMedCrossRef

Valentini FA, Robain G, Hennebelle DS, Nelson PP (2013) Decreased maximum flow rate during intubated flow is not only due to urethral catheter in situ. Int Urogynecol J 24(3):461–467PubMedCrossRef

Duckett J, Cheema K, Patil A, Basu M, Beale S, Wise B (2013) What is the relationship between free flow and pressure flow studies in women? Int Urogynecol J 24(3):447–452

Zehnder P, Roth B, Burkhard F, Kessler T (2008) Air charged and microtip catheters cannot be used interchangeably for urethral pressure measurement: a prospective, single-blind, randomized trial. J Urol 180:1013–1017PubMedCrossRef

Culligan PJ, Goldberg RP, Blackhurst DW, Sasso K, Koduri S, Sand PK (2001) Comparison of microtransducer and fiberoptic catheters for urodynamic studies. Obstet Gynecol 98(2):253–257PubMedCrossRef

Versi E (1990) Discriminant analysis of urethral pressure profilometry data for the diagnosis of genuine stress incontinence. BJOG 97(3):251–259CrossRef

Brown M, Wickham JE (1969) The urethral pressure profile. Br J Urol 41(2):211–217PubMedCrossRef

Pollak J, Neimark M, Connor J, Davila G (2004) Air-charged and microtransducer urodynamic catheters in the evaluation of urethral function. Int Urogynecol J 15:124–128CrossRef

10.

Wang A, Chen M (2002) A comparison of urethral pressure profilometry using microtip and double-lumen perfusion catheters in women with genuine stress incontinence. BJOG 109:322–326PubMedCrossRef

11.

Kuhn A, Nager C, Hawkins E, Schulz J, Stanton S (2007) A comparative study of water perfusion catheters and microtip transducer catheters for urethral pressure measurements. Int Urogynecol J 18:931–935CrossRef

12.

Cooper M, Fletter P, Zaszczxorynski P, Damaser M (2011) Comparison of air-charged and water-filled urodynamic pressure measurement catheters. Neurourol Urodyn 30:329–334PubMedCrossRef

13.

Homma Y, Batista J, Bauer S et al (2002) Urodynamics. In: Abrams P, Cardozo L, Khouri S, Wein A (eds) Incontinence. Health Publications, Plymouth, pp 317–372

14.

Schäfer W, Abrams P, Liao L et al (2002) Good urodynamic practices: uroflowmetry, filling cystometry and pressure flow studies. Neurourol Urodyn 21(3):261–274PubMedCrossRef

15.

Digesu GA, Basra R, Khullar V, Hendricken C, Camarata M, Kelleher C (2009) Bladder sensations during filling cystometry are different according to urodynamic diagnosis. Neurourol Urodyn 28(3):191–196PubMedCrossRef

16.

Bland J, Altman D (1986) Statistical methods for assessing agreement between two methods of clinical measurement. Lancet 1:307–310PubMedCrossRef

17.

Bland JM, Altman DG (1996) Measurement error proportional to the mean. BMJ 313:106PubMedCrossRef

18.

Haylen BT, de Ridder D, Freeman RM et al (2010) An International Urogynecological Association (IUGA)/International Continence Society (ICS) joint report on the terminology for female pelvic floor dysfunction. Int Urogynaecol J 21:5–26CrossRef

19.

Rosier P, Gajewski J, Sand P, Szabo L, Capewell A, Hosker G (2010) Executive summary: the International Consultation on Incontinence 2008—Committee on “Dynamic Testing” for urinary incontinence and for fecal incontinence. I. Innovations in urodynamic techniques and urodynamic testing for signs and symptoms of urinary incontinence in female patients. Neurourol Urodyn 29:140–145PubMed

Title: Are the measurements of water-filled and air-charged catheters the same in urodynamics?
Authors: G. Alessandro Digesu
Alexandros Derpapas
Penny Robshaw
Gopalan Vijaya
Caroline Hendricken
Vik Khullar
Publication date: 01-01-2014
Publisher: Springer London
Published in: International Urogynecology Journal / Issue 1/2014
Print ISSN: 0937-3462
Electronic ISSN: 1433-3023
DOI: https://doi.org/10.1007/s00192-013-2182-z

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Are the measurements of water-filled and air-charged catheters the same in urodynamics?

Abstract

Introduction and hypothesis

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Introduction and hypothesis

Methods

Results

Conclusions

Please log in to get access to this content

Other articles of this Issue 1/2014

Long-term follow-up after native tissue repair for pelvic organ prolapse

Urogynecology Digest

Utility of invasive urodynamics before surgery for stress urinary incontinence

Incidence of female urethral diverticulum: a population-based analysis and literature review

Laparoscopic hysteropexy: 1- to 4-year follow-up of women postoperatively

Mesh pullout force: comparative study of different deployment techniques in a sheep model