Adherence to ESC cardiac resynchronization therapy guidelines: findings from the ESC CRT Survey II
Bibliographic record
Abstract
AIMS: Cardiac resynchronization therapy (CRT) reduces morbidity and mortality in patients with heart failure (HF) and electrical dyssynchrony. The European Society of Cardiology (ESC) Guidelines provide evidence-based recommendations indicating optimal patient selection for CRT implantation in both the 2013 European Heart Rhythm Association (EHRA) and the 2016 Heart Failure Association (HFA) Guidelines. We assessed the adherence to guidelines and identified factors associated with guideline adherence. METHODS AND RESULTS: In 2016, the HFA and EHRA conducted the CRT Survey II in 42 ESC countries. The data collected were sufficient to evaluate adherence to guidelines in 8021 patients. Of these, 67% had a Class I guideline indication for CRT implantation, which was significantly correlated with female gender (1.70, P < 0.0001), age <75 years (1.55, P < 0.0001), non-ischaemic HF aetiology (1.22, P < 0.0001), and elective admission (1.87, P < 0.0001). A further 26% of implants had a Class IIa indication, 5% IIb and only 2% a contraindication to CRT-a Class III indication. Patients implanted under Level IIa indications were much more likely to have more comorbidities than patients implanted under Level I indications. However, there were large variations in guideline adherence between ESC countries. CONCLUSION: Implanters in ESC member states demonstrate a high degree of adherence to ESC guidelines with 98% of implants having a documented Class I, IIa or IIb indication. Cardiac resynchronization therapy implantation without a Class I indication was more likely in men, patients age ≥75 years, with HF of ischaemic origin and in patients admitted to hospital acutely.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.003 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 teacher head, 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".