Aetiological Phenotypes of Atrial and Ventricular Secondary Tricuspid Regurgitation and Their Prognostic Implications: Insights from the CARE-TR Registry
Bibliographic record
Abstract
AIMS: To report prevalence and clinical outcomes of different aetiological phenotypes of atrial and ventricular secondary tricuspid regurgitation (ASTR/VSTR). METHODS AND RESULTS: The Consecutive pAtients with seveRE Tricuspid Regurgitation evaluated in Heart Failure (HF) and Valve Clinics (CARE-TR) registry collected data from patients with at least severe tricuspid regurgitation (TR) enrolled at three Italian centres. The present analysis includes 648 patients with secondary TR, 22.1% with ASTR and 77.9% with VSTR. Patients with ASTR were further stratified in those with atrial fibrillation (AF, 25.2%), HF with preserved ejection fraction (HFpEF, 37.8%), and both (37.0%). Patients with VSTR were subdivided into those with severe left-sided valvular heart disease (LS-VHD, 28.5%), HF with reduced or mildly reduced ejection fraction (HFrEF/HFmrEF, 29.1%), HFpEF (35.5%), pre-capillary pulmonary hypertension (PH, 4.0%) and isolated right ventricular dysfunction (RVD, 2.9%). After a median follow-up of 498 days, 118 (18.2%) patients died and 153 (23.6%) were hospitalized for HF. Two-year survival free from the composite outcome of death or HF hospitalization was higher in patients with ASTR compared with those with VSTR (73.5% vs. 54.4%; p < 0.001). After adjustment for variables related with HF severity, VSTR remained independently associated with an increased risk of events (adjusted hazard ratio 2.00; 95% confidence interval 1.33-3.02; p = 0.001). Among ASTR patients, combined AF and HFpEF was associated with a poorer outcome compared with AF or HFpEF alone (60.2% vs. 80.5% vs. 83.6%; p = 0.022). Among patients with VSTR, overall survival free from the composite outcome was 85%, 65%, 54%, 39% and 38% for RVD, HFpEF, HFrEF/HFmrEF, severe LS-VHD, and pre-capillary PH, respectively (p < 0.001). CONCLUSIONS: In a real-world population with at least severe secondary TR, 22% had ASTR and showed better outcomes as compared to VSTR. Among patients with ASTR, combination of AF and HFpEF was common and associated with the worst prognosis. Among patients with VSTR, those with pre-capillary PH had the poorest outcomes, followed by those with LS-VHD.
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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 | 0.002 | 0.005 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.002 | 0.002 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".