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A national population-based cohort study of urethral injection therapy for female stress and mixed urinary incontinence: the Danish Urogynaecological Database, 2007–2011

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Abstract

Introduction and hypothesis

Urethral injection therapy (UIT) has been performed since the early 20th century and a variety of agents have been launched. In 2006, polyacrylamide hydrogel (PAGH) was introduced and is now widely used as an agent. The objective was to evaluate the efficacy of PAGH based on a national population over a 5-year period (2007–2011) and the influence of patient-related factors, surgeon experience, and department volume.

Methods

A retrospective cohort study was carried out based on data from the Danish Urogynaecological Database (DugaBase).

Results

A total of 731 women were registered in the DugaBase. Cure was achieved in 75 out of 252 women (29.8%) and no leakage at all in 23 out of 252 (9.1%) at the 3-month follow-up. The mean total International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) score decreased from 16 (SD 3.8) to 10.6 (SD 6.2; p < 0.001). UIT was performed at 16 departments, of which four high-volume departments performed 547 out of 814 UITs (67.2%). Women with severe UI had a decreased chance of cure (all ICIQ-SF scores), as did women on antimuscarinic drugs (adjusted OR 0.14; 95%, CI 0.04–0.41 “frequency”) and (adjusted OR 0.33; 95%, CI 0.13–0.82, “amount”). Women treated by a high-volume surgeon had a higher chance of cure (OR 4.51; 95% CI, 1.21–16.82, “frequency”) and a lower risk of 30-day hospital contacts (OR 0.27; 95% CI 0.09–0.76).

Conclusion

The study represented a cure for UIT among women in an everyday life setting. A surgeon learning curve for UIT was indicated, as was assigning interventions to fewer hands to improve the surgical training value and consequently the cure rate for women with UIT.

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Acknowledgements

Funding was provided by Aase og Ejnar Danielsens Fond and Edgar Schnohr og Hustru Gilberte Schnohr’s Fond. The Centre for Quality, Region of Southern Denmark, Middelfart, and the University of Southern Denmark financed the study.

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Authors and Affiliations

  1. Center for Clinical Epidemiology, Odense University Hospital and Research Unit of Clinical Epidemiology, Institute of Clinical Research, University of Southern Denmark, Odense, Denmark

    Margrethe Foss Hansen & Kim Oren Gradel

  2. Herlev Hospital, Department of Obstetrics and Gynaecology, Herlev, and Institute for Clinical Medicine, University of Copenhagen, Copenhagen, Denmark

    Margrethe Foss Hansen, Gunnar Lose & Ulrik Schiøler Kesmodel

Authors
  1. Margrethe Foss Hansen
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  2. Gunnar Lose
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  3. Ulrik Schiøler Kesmodel
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  4. Kim Oren Gradel
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Corresponding author

Correspondence to Margrethe Foss Hansen.

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Ethics approval

The study was approved by the Danish Data Protection Agency (J.nr. 2012-41-0414). As the study did not include patient contact, it was not necessary to obtain approval from the Health Research Ethics Committee.

Conflicts of interest

Margrethe Foss Hansen incurred conference and travel expenses for attendance at the EUGA Leading Lights in Urogynaecology Congress, Warsaw, 2015, paid for by Astella. The other authors have no conflicts of interest to declare.

Appendix

Appendix

Fig. 3
figure 3

The International Consultation on Incontinence Questionnaire Short Form (ICIQ-SF)

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Table 4 Patient characteristics related to surgeon and department volume in Denmark, 2007–2011
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Hansen, M.F., Lose, G., Kesmodel, U.S. et al. A national population-based cohort study of urethral injection therapy for female stress and mixed urinary incontinence: the Danish Urogynaecological Database, 2007–2011. Int Urogynecol J 28, 1309–1317 (2017). https://doi.org/10.1007/s00192-017-3265-z

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