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Panminerva Medica 2018 September;60(3):86-91

DOI: 10.23736/S0031-0808.18.03452-3

Copyright © 2018 EDIZIONI MINERVA MEDICA

lingua: Inglese

Inflammatory cytokines in cardiac pacing patients with atrial fibrillation and asymptomatic atrial fibrillation

Jiaxi PAN 1, Weiwei WANG 1, Xiaoxue WU 1, Fanqi KONG 1, Jialin PAN 2, Jiafeng LIN 2, Minxue ZHANG 1

1 Department of Cardiology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian, China; 2 Department of Cardiology, The Second Affiliated Hospital of Wenzhou Medical University, Wenzhou, China


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BACKGROUND: To investigate the changes of inflammatory cytokines in cardiac pacing patients with atrial fibrillation and asymptomatic atrial fibrillation and the effects of metoprolol on them.
METHODS: A total of 92 cardiac pacing patients with atrial fibrillation and asymptomatic atrial fibrillation in our hospital from April 2015 to March 2017 were selected and randomly divided into the control group and the observation group, with 46 cases in each group. Three months after pacemaker implantation, the control group was treated with aspirin, the observation group was treated with metoprolol on the basis of aspirin, and the curative effects were compared between the two groups. After treatment, the heart rate, the frequency and duration of atrial fibrillation and the atrial fibrillation load were observed. P-wave dispersion (PD) and cardiac function of the two groups of patients at 6 months after treatment were compared. The changes of serum levels of tumor necrosis factor-α (TNF-α), high sensitive C-reactive protein (Hs-CRP) and interleukin-6 (IL-6) in patients were compared before treatment and at 1, 3 and 6 months after treatment. The quality of life of the two groups of patients was observed.
RESULTS: After treatment, the effective rate of treatment in the observation group was significantly higher than that in the control group (P<0.05). After treatment, the average heart rate and atrial fibrillation load in the observation group were significantly improved compared with those in the control group, and the frequency and duration of atrial fibrillation were significantly lower than those in the control group (P<0.05). After treatment, the maximum P-wave duration (Pmax), the minimum P-wave duration (Pmin) and PD in the observation group were significantly lower than those in the control group (P<0.05). The left ventricular ejection fraction (LVEF) in the observation group was significantly higher than that in the control group, and the left ventricular end-diastolic volume (LVEDV), left ventricular end-systolic volume (LVESV) and E/A in the observation group were significantly lower than those in the control group (P<0.05). After treatment, the levels of TNF-α, Hs-CRP and IL-6 in the two groups of patients were decreased significantly, and those in the observation group were significantly lower than those in the control group (P<0.05). The quality of life score in the observation group was significantly higher than that in the control group (P<0.05).
CONCLUSIONS: Metoprolol can effectively reduce the incidence of atrial fibrillation, atrial fibrillation loadand inflammatory cytokine levels in cardiac pacing patients with atrial fibrillation and asymptomatic atrial fibrillation, and improve cardiac function of the patients and their quality of life. It has an important clinical significance.


KEY WORDS: Cardiac pacing, artificial - Atrial fibrillation - Cytokines - Metoprolol

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