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KMID : 0368120170470050752
Korean Circulation Journal
2017 Volume.47 No. 5 p.752 ~ p.761
Discordant Relationships between Systemic Inflammatory Markers and Burden of Oxidative Stress in Patients with Atrial Fibrillation
Nam Jong-Ho

Park Kyu-Hwan
Lee Jung-Hee
Lee Chan-Hee
Son Jang-Won
Kim Ung
Park Jong-Seon
Shin Dong-Gu
Abstract
Background and Objectives: Oxidative stress (OS) plays an important role in the pathophysiology of atrial fibrillation (AF) by amplifying the inflammatory cascade, wherein augmented inflammation facilitates the atrial electrical remodeling process. Few studies have investigated the possible link between systemic inflammation and OS in AF.

Subjects and Methods: A total of 220 consecutive patients with AF (117 patients) or healthy controls (103 patients) were enrolled. Among the 117 AF patients, 65 paroxysmal AF (PaAF) and 52 persistent AF (PeAF) patients were included. The level of 8-iso-prostaglandin F2¥á (8-iso-PGF2¥á) was measured as a marker of OS burden. We evaluated the correlations between 3 systemic inflammatory markers, high-sensitivity C-reactive protein (hsCRP), neutrophil to lymphocyte ratio (NLR), and red cell distribution width (RDW), and 8-iso-PGF2¥á.

Results: The 8-iso-PGF2¥á concentration in both PaAF and PeAF patients was higher than that of controls (p<0.001 and p=0.024, respectively). The NLR and RDW of PeAF patients were higher than those of both control and PaAF patients (p=0.041 and p=0.031 for NLR, p=0.057 and p=0.031 for RDW, respectively). There were no correlations between specific inflammatory markers and the 8-iso-PGF2¥á in AF. The 8-iso-PGF2¥á level decreased gradually with an increase in AF duration (p=0.008), contrary to the graded increase in hsCRP. Multiple regression analysis indicated that AF duration persisted as a significant determinant of 8-iso-PGF2¥á (¥â=?0.249, p=0.044).

Conclusion: Systemic inflammatory marker levels were not proportional to the levels of 8-iso-PGF2¥á, an OS marker, in AF.
KEYWORD
Atrial fibrillation, Inflammation, Oxidative stress
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