The Related Factors and Clinical Predictive Value of Left Atrial Spontaneous Echo Contrast in Patient with Nonvalvular Chronic Atrial Fibrillation

Abstract

Background: To investigate left atrial or left atrial appendage spontaneous echo by transesophageal
echocardiography for clinical risk assessment, providing an important basis for guiding
treatment and so on.
Methods: Select 113 atrial fibrillation patients who did not have formal warfarin treatment in
2011-2014 and did transesophageal echocardiography, after excluding substandard patients, 92
patients were divided into LASEC positive group (n=63) and negative group (n=29). Analyses
the clinical features and echocardiographic parameters. Evaluate the diagnostic value with
results of multivariate analysis.
Results: The study found a significant difference (P<0.05) between the two groups in the type
of AF (permanent AF), hypertension, left atrial diameter, left ventricular diastolic function,
among these factors, persistent atrial fibrillation, left atrial diameter >40 mm and hypertension
have a extremely significant difference (P<0.01). CHA2DS2-VASC score, D-dimer in plasma
have a predictive value for LASEC patients with atrial fibrillation.
Conclusion: Patients with persistent AF have a higher LASEC incidence, LASEC has clinical
predictive value, there are certain guiding significance in clinical practice.