Βeta-adrenergic receptor reactivity of erythrocyte membranes in patients with left or right atrial dilatation against the background of atrial fibrillation

IF 0.2 Q4 MEDICINE, GENERAL & INTERNAL
E. F. Muslimova, V. O. Popova, T. Y. Rebrova, E. A. Archakov, R. E. Batalov, S. A. Afanasiev
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Abstract

Hyperactivation of the sympathoadrenal system (SAS) leads to desensitization of β1-adrenergic receptors (β1-AR). This contributes to aggravation of myocardial contractile dysfunction and development of arrhythmias, including atrial fibrillation (AF). An indirect indicator of the viability of β1-AR is β-adrenergic receptor reactivity of erythrocyte membranes (β-ARM). Aim. To evaluate β-ARM in patients with different forms of AF, including left (LAD) or right (RAD) atrial dilation. Materials and methods. The sample included 38 patients, 65.8% of whom had paroxysmal AF, 21% had persistent AF, and 13.2% had long-standing persistent AF. All patients received surgical treatment for AF by radiofrequency ablation or cryoablation. LAD was detected in 39.4% of patients, RAD – in 34.2% of patients. Βeta-ARM was determined before treatment, as well as at 3 days and at 12 months after ablation. Results. The groups of patients with different forms of AF, as well as patients with LAD / RAD and without it showed comparable values of β-ARM at different measurement periods. In the group of patients without LAD / RAD, β-ARM increased 3 days after ablation compared to β-ARM before the treatment (p = 0.002 / p = 0.004) and returned to the pre-treatment level after 3 months. At the same time, in the group of patients with LAD / RAD, β-ARM did not significantly change before the ablation and in different periods after it. Conclusion. In patients with AF without LAD / RAD, we detected an increase in β-ARM 3 days after the ablation compared to the level before the treatment and a decrease in the intensity of SAS 3 months after the surgery. In the presence of LAD / RAD, no changes in the β-ARM were revealed.
Βeta-adrenergic心房颤动背景下左房或右房扩张患者红细胞膜受体反应性
交感病理肾上腺系统(SAS)的过度激活导致β1-肾上腺素能受体(β1-AR)的脱敏。这有助于心肌收缩功能障碍的加重和心律失常的发展,包括心房颤动(AF)。β1-AR活性的一个间接指标是红细胞膜β-肾上腺素能受体反应性(β-ARM)。的目标。评价β-ARM在包括左(LAD)或右(RAD)心房扩张的不同形式房颤患者中的作用。材料和方法。样本包括38例患者,其中65.8%为阵发性房颤,21%为持续性房颤,13.2%为长期持续性房颤。所有患者均接受射频消融或冷冻消融的房颤手术治疗。39.4%的患者检测到LAD, 34.2%的患者检测到RAD。在治疗前以及消融后3天和12个月测定Βeta-ARM。结果。不同形式AF患者组、LAD / RAD患者组和无LAD / RAD患者组在不同测量时段β-ARM值具有可比性。在无LAD / RAD患者组中,消融后3天β-ARM较治疗前升高(p = 0.002 / p = 0.004), 3个月后恢复到治疗前水平。同时,在LAD / RAD患者组中,β-ARM在消融前及消融后不同时期均无明显变化。结论。在没有LAD / RAD的房颤患者中,我们检测到消融后3天β-ARM与治疗前水平相比增加,手术后3个月SAS强度下降。在LAD / RAD存在的情况下,β-ARM未见变化。
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来源期刊
Byulleten Sibirskoy Meditsiny
Byulleten Sibirskoy Meditsiny MEDICINE, GENERAL & INTERNAL-
CiteScore
0.70
自引率
50.00%
发文量
102
审稿时长
8 weeks
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