P445 Is objective disease monitoring strategy tailored to the presence of clinical symptoms, a prospective cohort study from a tertiary IBD center from Hungary
Bibliographic record
Abstract
Abstract Background Emerging data suggest that a treat-to-target approach and early therapeutic intervention using regular objective disease assessment leads to improved outcomes. Our aim was to evaluate the value of objective disease monitoring during regular follow-up. Methods Patients presenting in our IBD center between January and December in, 2018 were included and followed up for, 1 year. Data from clinical visits, clinical disease activity using Crohn’s Disease Activity Index and partial Mayo Score, biomarkers (CBC, CRP, FCAL), stool culture, colonoscopy/sigmoidoscopy, CT/MRI scans, abdominal US, total number of visits, hospitalization or surgery rates, and change in medical therapy were collected. We compared monitoring strategy according to the clinical disease activity in the given quarter-year period based on the patient’s status of clinical disease activity (remission/ flare / post-flare/ continuous activity). Results N=161 patients were included (CD:118/UC:43; male:, 56%), with predominantly moderate-to-severe disease phenotype (70% on biological therapy). In total, n=644 quarter year periods (n=, 554 with patient visit) were evaluated (remission, 57%; continuous activity, 19%; post-flare, 11%; flare, 13%). CBC and CRP were performed in, 82.9% and, 83.9% of all patients with at least one clinical visit in a quarter-year period, regardless of clinical activity in IBD. Colonoscopy was performed in patients with flare or continuous disease activity in, 21.1% and, 18.9%, but, 10.1% of the patients in clinical remission also underwent colonoscopy in a given quarter-year period. In a sub-analysis of UC patients, 24.1% of the patients presenting with disease flare had colonoscopy in a given period. Stool culture and C.difficile stool tests were performed in, 17.2% of UC patients with flare. CT scans were performed at a low rate of, 2.4% in CD patients with disease flare, while MRI scans were similar in all subgroups of CD patients (7.7–16.7%)., 13.2% of patients with cont. activity and, 24.5% of patients with flare needed initiation or dose optimization of corticosteroids, while biological start or dose optimization was needed in, 31.1% and, 33.8% in a given quarter-year period. Mean number of follow-up visits per quarter-year period was high(1.6) even for patients in remission, and, 2.4 in flare. Conclusion Our study confirmed the use of regular objective biomarker monitoring, independent of clinical activity. We report high utilization of c-scope/sigmoidoscopy as well as MRI (in CD) in the objective evaluation of patients with clinical symptoms or even as part of routine monitoring. CT was reserved for emergency situations, while the use of US was relatively low. Objective monitoring resulted in frequent and early optimization of the therapeutic strategy.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.003 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".