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Total Atrial Conduction Time Assessed by Tissue Doppler Imaging (PA‐TDI Interval) to Predict Early Recurrence of Persistent Atrial Fibrillation After Successful Electrical Cardioversion
Author(s) -
MÜLLER PATRICK,
SCHIEDAT FABIAN,
BIALEK ANNA,
BÖSCHE LEIF,
EWERS AYDAN,
KARA KAFFER,
DIETRICH JOHANNES W.,
MÜGGE ANDREAS,
DENEKE THOMAS
Publication year - 2014
Publication title -
journal of cardiovascular electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.193
H-Index - 138
eISSN - 1540-8167
pISSN - 1045-3873
DOI - 10.1111/jce.12306
Subject(s) - medicine , atrial fibrillation , cardiology , doppler imaging , sinus rhythm , electrical cardioversion , pr interval , cardioversion , anesthesia , confidence interval , heart rate , diastole , blood pressure
TACT Assessed by PA‐TDI Interval Background The aim of this study was to investigate whether total atrial conduction time (TACT) assessed via tissue Doppler imaging (PA‐TDI interval) can identify patients with early recurrent atrial fibrillation (ERAF) after successful direct‐current electrical cardioversion (CV) of persistent atrial fibrillation (persPAF). Methods and Results A total of 54 patients without antiarrhythmic drug medication (mean ± SD: 66 ± 10.4 years; 33% women) with persPAF and successful CV were enrolled between May 2012 and May 2013. TACT was measured 6 hours after successful CV in the left atrium by tissue Doppler imaging (PA‐TDI interval). ERAF was determined via Holter‐electrocardiogram over a period of 7 days after CV. Receiver opearting characteristic analysis was used to determine an optimal cutoff value of PA‐TDI interval for prognosis of ERAF. Based on this result, recurrence‐free survival was assessed with Mantel–Haenszel's log‐rank test. ERAF occurred in 23 patients (43%). PA‐TDI interval was longer in patients with ERAF compared to those who maintained sinus rhythm (mean ± SD: 163.5 ± 11.1 vs 132.3 ± 11.2 milliseconds; P < 0.00001). At the cutoff value of 152 milliseconds, PA‐TDI interval sensitivity and specificity related to ERAF were 87% and 100%, respectively. Conclusion Measuring PA‐TDI interval may help to predict ERAF after successful CV in patients with persAF.