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Erschienen in: Rheumatology International 1/2017

18.05.2016 | Observational Research

Prolonged Tpeak–Tend interval in anti-Ro52 antibody-positive connective tissue diseases

verfasst von: Ayse Nur Tufan, Saim Sag, Mustafa Ferhat Oksuz, Selime Ermurat, Belkis Nihan Coskun, Mustafa Gullulu, Ferah Budak, Ibrahim Baran, Yavuz Pehlivan, Ediz Dalkilic

Erschienen in: Rheumatology International | Ausgabe 1/2017

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Abstract

Patients with connective tissue diseases (CTDs) may have prolonged corrected QT interval which indicates increased risk for ventricular arrhythmias. However, a more sensitive measure of ventricular repolarization, T-peak-to-end (Tpe) interval, has not been studied in CTDs. We aimed to investigate the relationship between ventricular repolarization abnormalities and anti-Ro52-positivity in subjects with connective tissue diseases (CTDs). We enrolled patients with anti-Ro52-positive CTDs, ANA-positive CTDs, and healthy subjects in this cross-sectional study. We excluded conditions potentially affecting the QT interval. We compared the ECG measures between the groups and performed analyses to define factors associated with ventricular repolarization measures. 15 ANA and anti-Ro52-positive, 39 ANA-positive and anti-Ro52-negative, and 22 healthy subjects were enrolled. None of the subjects had rhythm or conduction disturbances. Corrected QT intervals were similar between the groups. Tpe (84, 77.3, and 69.4 msn, respectively) and QT-dispersion (40, 27.2, and 20.1 msn, respectively) were higher in anti-Ro52-positive subjects compared with the ANA-positive and healthy subjects. Anti-Ro52 titers were correlated with Tpe and QT-dispersion (r = 0.52 and p < 0.001 for each). ANA and anti-Ro52-positivity were independently associated with higher Tpe (OR = 7.7, p = 0.001 and OR = 6.9, p = 0.001, respectively), corrected Tpe (OR = 11.3, p = 0.001 and OR = 8.4, p = 0.003, respectively), QT dispersion (OR = 7, p = 0.008 and OR = 13, p < 0.001, respectively), and QTc dispersion (OR = 9.1, p = 0.001 and OR = 14.1, p < 0.001, respectively). This study provides evidence that ANA positivity, especially when concomitant anti-Ro52-positivity is present, significantly deteriorates ventricular repolarization. The aforementioned ventricular repolarization abnormalities may render these subjects susceptible to serious rhythm or conduction disorders in the setting of predisposing conditions.
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Metadaten
Titel
Prolonged Tpeak–Tend interval in anti-Ro52 antibody-positive connective tissue diseases
verfasst von
Ayse Nur Tufan
Saim Sag
Mustafa Ferhat Oksuz
Selime Ermurat
Belkis Nihan Coskun
Mustafa Gullulu
Ferah Budak
Ibrahim Baran
Yavuz Pehlivan
Ediz Dalkilic
Publikationsdatum
18.05.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
Rheumatology International / Ausgabe 1/2017
Print ISSN: 0172-8172
Elektronische ISSN: 1437-160X
DOI
https://doi.org/10.1007/s00296-016-3488-1

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