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A comparative study of water perfusion catheters and microtip transducer catheters for urethral pressure measurements

Kuhn, Annette ; Nager, Charles ; Hawkins, Emma ; Schulz, Jane ; Stanton, Stuart

In: International Urogynecology Journal, 2007, vol. 18, no. 8, p. 931-935

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    Titre
    • A comparative study of water perfusion catheters and microtip transducer catheters for urethral pressure measurements
    Auteur
    • Kuhn, Annette. Department of Urogynaecology, Frauenklinik, Effingerstr.102, Inselspital, 3011, Bern, Switzerland
    • Nager, Charles. Department of Reproductive Medicine, Division of Urogynecology, University of California, San Diego, CA, USA
    • Hawkins, Emma. Urogynaecology, Haroldswood Hospital, London, UK
    • Schulz, Jane. Urogynecology, Royal Alexandra Hospital, Edmonton, AB, Canada
    • Stanton, Stuart. Urogynaecology, 43 Wimpole Street, London, UK
    Type de document
    • Postprint
    Langue
    • Inglese
    Publié dans
    • International Urogynecology Journal, 2007, vol. 18, no. 8, p. 931-935. Springer-Verlag
    Autre version électronique
    Identifiant OAI-PMH
    • oai:doc.rero.ch:320994
    Summary
    The aim of this study was to compare the maximum urethral closure pressure (MUCP) measures with two different techniques: water perfused catheter and microtip transducer catheters with respect to reproducibility and comparability for urethral pressure measurements. Eighteen women with stress urinary incontinence had repeat static urethral pressure profilometry on a different day using a dual microtip transducer and water perfused catheter (Brown and Wickham). The investigators were blinded to the results of the other. The microtip measurements were taken in the 45° upright sitting position with the patient at rest at a bladder capacity of 250ml using an 8 Fr Gaeltec® double microtip transducer withdrawn at 1mm/s, and the transducer was orientated in the three o'clock position. Three different measures were taken for each patient. Three water perfusion measurements were performed with the patient at rest in the 45° upright position at a bladder capacity of 250ml using an 8 Fr BARD dual lumen catheter withdrawn at 1mm/s. The mean water perfusion MUCP measure was 26.1cm H20, significantly lower than the mean microtip measure of 35.7cm H20. The correlation coefficient comparing each water perfusion measurement with the other water perfusion measures in the same patient was excellent, at 0.95 (p = 0.01). Correlation coefficient comparing each microtip measure with the other microtip measure in the same patient was also good, ranging from 0.70 to 0.80. This study confirms that both water perfusion catheters and microtip transducers have excellent or very good reproducibility with an acceptable intraindividual variation for both methods