Improving the diagnosis of heart failure in patients with atrial fibrillation

Autor: Bunting, Karina V, Gill, Simrat K, Sitch, Alice, Mehta, Samir, O'Connor, Kieran, Lip, Gregory YH, Kirchhof, Paulus, Strauss, Victoria Y, Rahimi, Kazem, Camm, A John, Stanbury, Mary, Griffith, Michael, Townend, Jonathan N, Gkoutos, Georgios V, Karwath, Andreas, Steeds, Richard P, Kotecha, Dipak, Pe, RAte Control Therapy Evaluation
Přispěvatelé: group, RAte control Therapy Evaluation in permanent Atrial Fibrillation (RATE-AF) trial
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: HEART
Heart
Bunting, K V, Gill, S K, Sitch, A, Mehta, S, O'Connor, K, Lip, G Y H, Kirchhof, P, Strauss, V Y, Rahimi, K, Camm, A J, Stanbury, M, Griffith, M, Townend, J N, Gkoutos, G V, Karwath, A, Steeds, R P, Kotecha, D & RAte control Therapy Evaluation in permanent Atrial Fibrillation (RATE-AF) trial group 2021, ' Improving the diagnosis of heart failure in patients with atrial fibrillation ', Heart, vol. 107, no. 11, 318557, pp. 902-908 . https://doi.org/10.1136/heartjnl-2020-318557
ISSN: 1468-201X
Popis: ObjectiveTo improve the echocardiographic assessment of heart failure in patients with atrial fibrillation (AF) by comparing conventional averaging of consecutive beats with an index-beat approach, whereby measurements are taken after two cycles with similar R-R interval.MethodsTransthoracic echocardiography was performed using a standardised and blinded protocol in patients enrolled in the RATE-AF (RAte control Therapy Evaluation in permanent Atrial Fibrillation) randomised trial. We compared reproducibility of the index-beat and conventional consecutive-beat methods to calculate left ventricular ejection fraction (LVEF), global longitudinal strain (GLS) and E/e’ (mitral E wave max/average diastolic tissue Doppler velocity), and assessed intraoperator/interoperator variability, time efficiency and validity against natriuretic peptides.Results160 patients were included, 46% of whom were women, with a median age of 75 years (IQR 69–82) and a median heart rate of 100 beats per minute (IQR 86–112). The index-beat had the lowest within-beat coefficient of variation for LVEF (32%, vs 51% for 5 consecutive beats and 53% for 10 consecutive beats), GLS (26%, vs 43% and 42%) and E/e’ (25%, vs 41% and 41%). Intraoperator (n=50) and interoperator (n=18) reproducibility were both superior for index-beats and this method was quicker to perform (pConclusionsCompared with averaging of multiple beats in patients with AF, the index-beat approach improves reproducibility and saves time without a negative impact on validity, potentially improving the diagnosis and classification of heart failure in patients with AF.
Databáze: OpenAIRE