Fig 1.
Peak atrial longitudinal strain (PALS) and peak atrial contraction strain (PACS) in a patient without atrial fibrillation recurrence (A, B) and with atrial fibrillation recurrence (C, D), respectively.
Table 1.
Baseline characteristics of the study population.
Table 2.
Echocardiography characteristics of the study population.
Fig 2.
Chi—Square statistics for different models for the prediction of atrial fibrillation (AF) recurrence.
Values indicate the percentages of increase in Chi—square for every model. Statistical comparison by likelihood ratio tests. *Model#1: persistent AF, recurrence during the blanking period, left atrium diameter index ≥ 2.36 cm/m2; global Chi—square = 33.4. **Model#2: Model#1* + left atrium volume index ≥ 41.9 ml/m2, 21% increase in Chi—square. †Model#3: Model#2* + peak atrial longitudinal strain ≤ 17%, 37% increase in Chi—square.
Table 3.
Multivariable analysis for the prediction of AF recurrence after the blanking period.
Fig 3.
Kaplan—Meier AF—Free survival curve stratified by the optimal cut-off value of peak atrial longitudinal strain (PALS).