[Acute myocardial infarction: what is new?].

Current recommendations on the management of acute myocardial infarction and the use of thrombolysis are reviewed.

[Comparison between three-dimensional electro-anatomical mapping and conventional mapping in the ablation of atrial tachycardias].

In atrial tachycardias, catheter ablation using conventional mapping system is associated with high immediate success and low recurrence. Three-dimensional electroanatomical mapping system combined to catheter ablation of atrial tachycardias has reached, in small uncontroled series, success rates of 100%. However, limited data are available about rates of recurrence or complication using this approach.

[Characteristic electrocardiographic procedures of isthmic-dependent atrial flutter; influence of clinical and echocardiographic procedures].

The appearance of the F waves on the ECG is considered to be related to the type of circuit of the anti-clockwise flutters and the clockwise isthmic-dependant flutters. In the authors' experience, the usual ECG description of these two types of flutter is not always observed. This study was undertaken to analyse the different appearances of anti-clockwise and clockwise flutters and to try and explain the reasons for these differences.