Postoperative three-dimensional endoanal ultrasound findings and relation to anal fistula plug failure

Ursula Aho Fält, Antoni Zawadzki, Marianne Starck-Söndergaard, Måns Bohe, Sara Regnér, Louis Banka Johnson

Research output: Contribution to journalArticlepeer-review

Abstract

Objectives
To explore the utilization of three-dimensional (3D) endoanal ultrasound (EAUS) for the follow-up of the anal fistula plug (AFP), describe morphological findings in postoperative 3D EAUS, and evaluate if postoperative 3D EAUS combined with clinical symptoms can predict AFP failure.

Materials and methods
A retrospective analysis of 3D EAUS examinations performed during a single-centre study of prospectively included consecutive patients treated with the AFP between May 2006 and October 2009. Postoperative assessment by clinical examination and 3D EAUS was performed at 2 weeks, 3 months and 6–12 months (“late control”). Long-term follow-up was carried out in 2017. The 3D EAUS examinations were blinded and analysed by two observers using a protocol with defined relevant findings for different follow-up time points.

Results
A total of 95 patients with a total of 151 AFP procedures were included. Long-term follow-up was completed in 90 (95%) patients. Inflammation at 3 months, gas in fistula and visible fistula at 3 months and at late control, were statistically significant 3D EAUS findings for AFP failure. The combination of gas in fistula and clinical finding of fluid discharge through the external fistula opening 3 months postoperatively was statistically significant (p 
Original languageEnglish
Pages (from-to)1200-1206
JournalScandinavian Journal of Gastroenterology
Volume58
Issue number10
Early online date2023 May 19
DOIs
Publication statusPublished - 2023

Subject classification (UKÄ)

  • Surgery

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