Left atrial remodeling
Left atrial remodeling has three aspects – electrical, functional and structural. Electrical remodeling can be assessed by the interval between the onset of P wave on the electrocardiogram and the A’ on the tissue Doppler evaluation. Left atrial appendage velocity determined by Doppler interrogation gives an idea about left atrial functional remodeling. Structural remodeling can be assessed by echocardiographically derived left atrial volume index. Left atrial remodeling has an important role in the perpetuation of atrial fibrillation and conversion of paroxysmal atrial fibrillation to a persistent one.