Purpose of the study. To evaluate the direct impact of arterial hypertension and peak atrial longitudinal strain on the risk of relapse in patients with paroxysmal and persistent forms of AF after cryoballoon ablation of the pulmonary veins. Material and methods. The follow-up period ranged from 28 to 104 weeks (mean follow-up 34±12 weeks). A total of 284 patients were included in the study. The first group included 170 patients with paroxysmal AF (59.8%), and the second included 114 patients with persistent AF (40.1%). Results. We analyzed the prevalence of arterial hypertension among patients of the first and second groups. It was found that in patients with a persistent form, the incidence of grade 3 arterial hypertension was higher than 30 (26.3%) compared to the paroxysmal form 9 (5.3%) (p<0.001). As a result of the study, we found that patients with stage 3 arterial hypertension experienced a significant change in both the anatomical and mechanical properties of the left atrium. 114 patients (40.1%) were diagnosed with recurrent arrhythmia. When conducting a univariate Cox regression analysis, the persistent form of AF (OR: 5.53; CI: 2.57-11.87), the presence of diabetes (OR: 3.316; CI: 1.093 – 10.055), the presence of hypertension (OR: 3.30; CI: 1.14-4.63) showed the strongest association with the development of recurrent AF As a result of multivariate Cox analysis, the predictors that had an independent effect on the risk of AF recurrence after cryoballoon PV isolation were the presence of arterial hypertension, LA PALS values, and the volume value with LA appendage. These predictors included in the model were characterized by a direct relationship with the risk of AF recurrence. Thus, the presence of arterial hypertension, the LA PALS values are 3.465 and 0.855 times, and the volume value with LA appendage is 1.045 times. Survival analysis using the Kaplan-Meier method was performed, showing the cumulative incidence of AF recurrence at each time point after baseline, depicted separately for those patients diagnosed with paroxysmal and persistent AF. (Figure 6). Freedom from recurrence of AF after cryoballoon isolation of the PV during the observation period after cryoballoon isolation of the PV was 83% for the group of patients with paroxysmal form and 51% for the group of patients with persistent form of AF. Conclusion. Studying the mechanisms of occurrence and maintenance of AF plays an important role in the development of treatment strategies for patients with various forms of AF. Studying LA remodeling allows us to identify early predictors of AF relapse, which in turn will help to more effectively and timely adjust drug and interventional treatment.