Early improvement in bowel wall thickness on transperineal ultrasonography predicts treatment success in active ulcerative colitis

Shintaro Sagami, Taku Kobayashi, Kanako Aihara, Misaki Umeda, Kazuhiro Odajima, Hiromu Morikubo, Kunio Asonuma, Yusuke Miyatani, Tomohiro Fukuda, Mao Matsubayashi, Hiroki Kiyohara, Masaru Nakano, Toshifumi Hibi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Background: Bowel ultrasonography is a non-invasive imaging tool that can repeatedly monitor ulcerative colitis (UC) activity. Aim: This study aimed to determine whether early transabdominal or transperineal ultrasonography changes can predict subsequent clinical response to induction therapy in patients with UC. Methods: This single-centre prospective study explored ultrasonographic predictors for clinical remission (patient-reported outcome-2 ≤ 1 with no rectal bleeding subscore) at week 8 in patients with active UC who underwent induction therapy, in comparison with faecal calprotectin and C-reactive protein (measured at baseline, week 1 and week 8). Predictive factors were assessed using multivariable regression models and receiver-operating-characteristic curve analysis. Results: A total of 100 patients were analysed, of which 54 achieved remission at week 8. Baseline biomarker and ultrasonographic-parameter values were not predictive of remission. Contrastingly, change from baseline to week 1 in rectal bowel wall thickness measured using transperineal ultrasonography was an independent predictor of remission by week 8 (adjusted odds ratio is associated with a 1-mm decrease: 1.90 [95% confidence interval, 1.22–2.95]). In a subgroup analysis of the patients who did not achieve remission in 1 week, the predictive value of change in rectal bowel wall thickness remained high (AUC = 0.77 [95% confidence interval, 0.61–0.88]). Conclusion: Improvement in rectal bowel wall thickness measured using transperineal ultrasonography at week 1 predicts treatment success and potentially facilitates decision making during the early course of induction therapy in UC.

Original languageEnglish
Pages (from-to)1320-1329
Number of pages10
JournalAlimentary Pharmacology and Therapeutics
Volume55
Issue number10
DOIs
Publication statusPublished - 2022 May
Externally publishedYes

Keywords

  • gastrointestinal ultrasonography
  • induction treatment
  • inflammatory bowel disease
  • prognosis

ASJC Scopus subject areas

  • Hepatology
  • Gastroenterology
  • Pharmacology (medical)

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