[PDF] Premature atrial contraction-induced cardiomyopathy. | Semantic Scholar (2024)

Electrophysiological characteristics of premature atrial contractions originating from pulmonary veins and non‐PVs are explored and the effectiveness and safety of catheter ablation for PACs are evaluated.

RFCA was feasible, safe, and effective to eliminate isolated frequent, symptomatic, and drug-refractory PACs in patients with a structurally normal heart, and the elimination of PACs by RFCA significantly improved symptoms and the quality of life.

Tachycardia-induced cardiomyopathy should be considered as a probable reason of ventricular dysfunction and dilatation in any patient presenting with dilated cardiopathy pattern, despite that the initial rhythm is not pathological or the heart rate is well controlled.

Frequent PACs in the absence of AF were characterized as having their predilection sites and longer CoIs than those inducing AF and catheter ablation was effective to eliminate symptomatic, frequent, and drug-refractory PACs.

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Routine 2D TEE in addition to traditional fluoroscopic TP appears to be very useful to guide the TP assembly in a correct puncture position and thus, to avoid TP-related complications, but further randomized prospective comparative studies are necessary to support these suggestions.

Radiofrequency electrocautery delivery associated with the standard TS approach is a safe and reproducible technique to reach the left atrium, using the TEE guidance, and is helpful during repeat TS catheterization and in the presence of anatomical atrial septum abnormalities.

The novel sharp-tip, J-shaped 0.014'' transseptal guidewire (TSP-GW) facilitates TSP-C in 23% of the patients, in whom a resistant AS is encountered.

The data suggest that the new dilator technique is much safer than that of the standard needle method but it needs relatively longer procedure time but results in significantly fewer episodes of severe complications.