Percutaneous transcatheter closure of atrial septal defects: initial single-centre experience and follow-up results. Initial experience with three-dimensional echocardiography.

Objective: Registry to report our single-centre experience in closing defects of the atrial septum.

Methods: Between 1996 and 2001, transcatheter device closure of significant atrial septal defects was performed in 32 adults (mean age 45.1 years, range from 15 to 76 years), using different device types.

Internal cardioversion: a worthwhile alternative after failed external cardioversion in obese patients.

Transthoracic external cardioversion is, if carried out properly, a highly effective cardioversion modality for most patients with atrial fibrillation. Failure to return to sinus rhythm (even for one or two beats) can be related to high transthoracic impedance. Internal cardioversion may offer a safe and worthwhile alternative for these patients, in need of sinus rhythm.