Significance of red cell distribution width in the differential diagnosis between neurally mediated syncope and arrhythmic syncope in children.

Abstract:

OBJECTIVES:The aim of the present study was to explore the predictive value of red cell distribution width as a means to differentiate between neurally mediated syncope and arrhythmic syncope in children. METHOD:Patients were divided into a neurally mediated syncope group (n=72) and an arrhythmic syncope group (n=21) on the basis of clinical history, results of the head-up tilt test, electrocardiography, and 24-hour ambulatory electrocardiography. As controls, we recruited 55 healthy children. Red cell distribution width was determined for children in all groups. A receiver operating characteristic curve was drawn to study the predictive effect of red cell distribution width to differentiate between neurally mediated syncope and arrhythmic syncope. RESULTS:Red cell distribution width was significantly higher in children with neurally mediated syncope than in children with arrhythmic syncope and the control group. A receiver operating characteristic curve on the predictive value of red cell distribution width in differentiating neurally mediated syncope from arrhythmic syncope showed that the area under the curve was 0.841 (95% confidence interval: 0.737-0.945, p<0.05). A red cell distribution width value of 12.8% as the cut-off value yielded a sensitivity of 80.6% and a specificity of 76.2% in discriminating between patients with neurally mediated syncope and arrhythmic syncope. CONCLUSION:Red cell distribution width value of ⩾12.8% might be a useful adjunct for primary-care physicians to differentiate neurally mediated syncope from arrhythmic syncope in children.

journal_name

Cardiol Young

journal_title

Cardiology in the young

authors

Zhang Q,Li Y,Liao Y,Du J

doi

10.1017/S1047951116001098

subject

Has Abstract

pub_date

2017-05-01 00:00:00

pages

691-696

issue

4

eissn

1047-9511

issn

1467-1107

pii

S1047951116001098

journal_volume

27

pub_type

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