[Comparative analysis of results of two techniques of ablation for typical atrial flutter].

Aim: To compare efficacy of two techniques of ablation for typical atrial flutter: 'old' which end point was impossibility of arrhythmia reinduction and 'novel' aimed at change of sequence of right atrial excitation during coronary sinus ostium pacing for verification of isthmus block after ablation of the inferior vena cava-tricuspid valve isthmus.

Method: Retrospective analysis of results of 122 procedures of catheter ablation for common atrial flutter.

Results: Efficacy of both methods was similar but the use of the 'novel' technique was associated with shorter overall duration of a procedure and fluoroscopy time, lesser number of applications required for successful ablation, and lower rates of induction of atrial fibrillation and of atrial flutter recurrences.

[Calculation of impact blood volume by a rheogram].

The approximated analytical expression for calculation of impact blood volume by using some parameters of a rheogram is derived on the basis of the authors' simple model of an elastic vessel having blood. The formula proposed to measure impact blood volume contains no empirical adjustable parameters is given.

[The evaluation of the late results of destruction of the atrioventricular junction in patients with drug-resistant atrial fibrillation].

Atrial fibrillation is a commonly seen form of disordered cardiac rhythm. Catheter-radio frequency ablation of the atrioventricular junction was found out to be an effective approach to control heart rate in continued drug-refractory cardiac fibrillation permitting the quality of the patients' life to be improved. The best results are achievable in patients presenting with chronic cardiac fibrillation.