METHOD OF PREDICTING RECOVERY OF SINUS RHYTHM IN PATIENTS WITH PAROXYSMAL ATRIAL FIBRILLATION Russian patent published in 2015 - IPC A61B5/452 

FIELD: medicine.

SUBSTANCE: invention relates to the field of medicine, in particular to cardiology, and can be used for determining success in recovering the sinus rhythm in patients with paroxysmal atrial fibrillation. A rhythmogram is registered and the following mathematical averaging by a "sliding window" method is realised. The coefficient of rhythm biochronological ordering is calculated by formula $$\underset{m\to \infty }{\lim }{a}_m=\frac{2}{n\left(n+1\right)}{\displaystyle \sum _{k=0}^{n-1}\left(k+1\right)a_k},$$ where lim a is the coefficient of rhythm biochronological ordering (relative units), a stands for values of R-R intervals (milliseconds), n stands for the quantity of intervals, m is the quantity of averaging cycles, k is an averaged interval number. If the value of lim a<5.5, the possibility of recovering the sinus rhythm by both a pharmacological and an electric cardioversion is lower than 10%, in case of lim a (≥5,5; ≤6,5), the possibility of recovering the sinus rhythm by the electric cardioversion is higher than 90%, with lim a>6,5 the possibility of recovering the sinus rhythm by the pharmacological cardioversion is higher than 90%.

EFFECT: method makes it possible to estimate the probability of recovering the sinus rhythm in patients with paroxysmal atrial fibrillation with high sensitivity and specificity.

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