Key result
Patients with celiac disease had significantly increased P-wave dispersion (52 vs 38 ms, P<0.001) and interatrial electromechanical delay (49 vs 26 ms, P<0.001) compared to healthy controls.
Why the study?
Does celiac disease affect electrical and mechanical left atrial function compared to healthy controls?
Observational (n=123)
Does celiac disease affect electrical and mechanical left atrial function compared to healthy controls?
Patients with celiac disease exhibit slower atrial electrical conduction, which may predispose them to an increased risk of atrial fibrillation.
Answers are grounded in this paper and cite their sources.
May indicate subclinical atrial dysfunction in celiac disease; leaves open whether this predicts incident atrial fibrillation.
BACKGROUND: There is some evidence suggesting increased risk of atrial fibrillation (AF) in patients with celiac disease (CD). Impaired left atrial function plays a significant role in the development of AF. This study aimed at assessing the electrical and mechanical functions of the left atrium in patients with CD. METHODS: A total of 71 patients with biopsy-proven, antibody-positive CD and 52 age-matched healthy controls were included in this prospective study. P-wave dispersion (PWD) was measured to assess the electrical functions of the left atrium through the use of surface electrocardiography. A tissue Doppler echocardiography was performed to determine the atrial conduction and electromechanical delay (EMD) time. To evaluate the mechanical functions of the left atrium, maximum, minimum, and presystolic atrial volumes were estimated to calculate the contractile, conduit, and reservoir functions. RESULTS: In terms of transthoracic echocardiographic parameters, CD and control subjects were not significantly different. However, as compared to controls, patients with CD had significantly increased PWD (median 52 ms [interquartile range 46-58 ms] vs. 38 [36-40], P < 0.001). Also, significantly higher interatrial (49 ms [32-60] vs. 26 ms [22-28], P < 0.001), intra-left atrial (26 ms [17-44] vs. 14 ms [12-18], P < 0.001), and intra-right atrial (15 ms [8-22] vs. 10 ms [8-14], P < 0.001) EMD was found among CD subjects than controls. Despite an increase in the left atrial volume in patients with CD, conduit and reservoir functions were comparable. CONCLUSIONS: Although atrial mechanical functions are preserved in patients with CD, a slower electrical conduction was found, suggesting an increased risk of AF in this group of patients.
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Bayar et al. (2015) conducted an observational in Celiac disease (n=123). Celiac disease vs. Age-matched healthy controls was evaluated on P-wave dispersion (PWD) (p=<0.001). Patients with celiac disease had significantly increased P-wave dispersion (52 vs 38 ms, P<0.001) and interatrial electromechanical delay (49 vs 26 ms, P<0.001) compared to healthy controls.
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