An economic evaluation of first-line cryoballoon ablation versus antiarrhythmic drug therapy for the treatment of paroxysmal atrial fibrillation from an English NHS perspective
Notice bibliographique
Résumé
Abstract Funding Acknowledgements Type of funding sources: Other. Main funding source(s): This cost-effectiveness study was funded by Medtronic Background The UK National Institute of Care Excellence (NICE) recommend the use of pulmonary vein isolation (PVI) to treat paroxysmal atrial fibrillation (PAF) in those who have not responded to drug treatment. Recently, three randomized controlled trials have demonstrated that as an initial rhythm control strategy, PVI with cryoballoon ablation, reduces atrial arrhythmia recurrence compared to antiarrhythmic drug (AAD) therapy in patients with symptomatic PAF. Purpose To evaluate the cost-effectiveness of first-line cryoablation versus first-line optimized AADs in an English National Health Service (NHS) setting. Methods Individual patient-level data from 703 participants with untreated PAF recruited into Cryo-FIRST, STOP AF First and EARLY-AF were used to derive equations to predict the following outcomes: rates of ablation, AF recurrence and resolution, AF-related hospital attendance, and health-related quality of life (HRQoL) utilities. Where parameters could not be sourced from the trial data, inputs were taken from the published literature or derived using clinical expert opinion. The cost-effectiveness model (CEM) was a hybrid of a decision tree with a one-year time horizon and a Markov model (three-month cycle length) with a lifetime time horizon and was developed from the perspective of the English NHS. Health benefits were expressed in quality-adjusted life years (QALYs), and all benefits and costs were discounted at 3.5% per year in line with NICE requirements. Uncertainty in the CEM inputs was explored using probabilistic sensitivity analysis. The results include an initial 12-week blanking period for all studies. Results The three-monthly rate of AF recurrence was reduced on average by 46.7% (p<0.001) in those treated with cryoablation. Similarly, the monthly rate of receiving an ablation following initial treatment was reduced by 72.8% (p<0.001) in the cryoablation arm. Furthermore, the average cryoablation patient was associated with a 4.3% (p=0.025) increase in their HRQoL. While the likelihood of failure was greater in the AAD group, in those who failed initial treatment, there was no difference in the rate of AF symptom resolution. The CEM indicates that cryoablation is more effective (+0.17 QALYs) and more costly (+£1,414) over a lifetime compared to optimized AADs. Cryoablation resulted in an Incremental Cost-Effectiveness Ratio of £8,435 with a 78.5% probability of being cost-effective at a willingness-to-pay threshold of £20,000 per QALY gained. Individuals in both treatment arms were predicted to receive ~1.2 ablations over a lifetime regardless of initial treatment. However, there was a 45% relative reduction in the amount of time spent in symptomatic AF states for those initially treated with cryoablation. Conclusions AF rhythm control in drug naïve patients with cryoballoon ablation is cost-effective compared to optimized AADs in an English NHS setting.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,008 | 0,001 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,001 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».