Introduction:

Bayés syndrome is characterised by the presence of an advanced inter-atrial block and the subsequent appearance of supraventricular arrhythmias, mainly, atrial fibrillation and atrial flutter. Its anatomical and electrical disturbances, as well as its complications, have a great impact on those who suffer from it, which, up until now have been given little importance. As regards treatment, there is a lot of controversy on the need for anticoagulants in patients with inter-atrial block in absence of atrial fibrillation or flutter.

Methods and materials:

The first non-systematic review in Colombia is presented, together with three cases of patients who initially had advanced interatrial block and over the years developed atrial fibrillation. The electrocardiograms documenting the advanced interatrial block, and tables showing demographic characteristics, echocardiography and relevant personal history of case management, are discussed.

Conclusions:

More knowledge about this syndrome is required in order to ensure an early diagnosis, which could lead to an appropriate follow-up, treatment and prevention of complications. Physicians should be encouraged to create and propose new trials regarding this condition, revealing more information about unknown risk factors and different treatment options.

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