Left atrial thrombus index (LATI) is a sensitive marker for the detection of left atrial appendage (LAA) thrombus in atrial fibrillation (AF) patients with less CHADS2 score

摘要

Background: Aim of the study is to evaluate the predictive correlationbetween LA thrombus index by transthoracic echocardiographyin AF patients and LAA thrombus detection bytransesophageal echocardiography in AF patients with CHADS2?1 are excluded from thestudy. The defined patient population is screened with CHADS2score and ECG. Then transthoracic echocardiographic parametersLa volume index is calculated by Simpson’s method and LVEFmeasured by Simpson’s rule and transesophageal echocardiographyare done for LAA thrombus in all AF patients with CHADS2?10cm/sec) and E/e’ ratio (>11) were predictiveof for the presence of LA/LAA clot. The routine parameters used asa scale for starting anticoagulants in patients with non valvular AFi.e LA size(>5cm), LAVI(>28ml/m2), LAA velocity (40cm/sec) werefound to be not statistically significant with relation to presence ofLA/LAA clot.Conclusions: Atrial fibrillation is the most common cause ofarrhythmia. AF patients with CHADS2 score <1 need to beassessed precisely to avoid the embolic episodes by evaluation ofEcho parameters like LATI, E/e’ and Mitral e’ velocity in addition toassessing LA size, LAVI and LAA velocity. The early initiation ofanti coagulation by use of above parameters will help in reducingthe morbidity and mortality.