[A method of modelling myocardial fibrillation].

A method of controlled atrial fibrillation modelling including the paired stimulation of the right atrium induced by using a transvenous bipolar catheter during vagal arrest of the heart is presented. The myocardial fibrillation is supposed to result from a critical shortening of the absolute refractory period with relation to the hypothetic period of potential self-excitation normally overlapped by the absolute refractory period.