Interatrial block, frailty and prognosis in elderly patients with myocardial infarction

Interatrial block as a predictor of atrial fibrillation in patients with ST‐segment elevation myocardial infarction

“…There is solid evidence that IAB is a strong predictor for new onset AF including symptomatic and asymptomatic episodes detected by cardiac implantable electronic devices . IAB was evaluated in many different clinical situations previously and AF was detected in 9%‐15% of included patients in those studies . Recent BAYES' syndrome‐ HF registry revealed that AF was detected in almost half of patients during follow‐up .…”

“…7 IAB was evaluated in many different clinical situations previously and AF was detected in 9%-15% of included patients in those studies. 11,19,27 Recent BAYES' syndrome-HF registry revealed that AF was detected in almost half of patients during follow-up. 11 In our study 17.7% of patients developed new onset AF.…”

Interatrial Block Predicts Atrial Fibrillation and Total Mortality in Patients with Cardiac Resynchronization Therapy

“…It has been reported in around 1% of patients with mitral valve disease [34], in 14% of patients undergoing coronary bypass graft surgery [35], in 17% of patients admitted with HF [36], and in 17% of ischemic stroke survivors [37]. Prolonged PWD (pIAB) as well as morphological abnormalities in inferior ECG leads (aIAB) are associated with structural abnormalities of the atrial wall such as fibrosis due to ageing and cardiovascular comorbidities [38][39][40]. One would therefore expect a high prevalence of IAB in CRT recipients.…”

Bloqueo interauricular avanzado en pacientes con hipertensión arterial sistémica y fibrilación auricular

“…Varios estudios realizados sobre el BIA han reportado una alta prevalencia de este bloqueo interauricular en entornos hospitalarios y ambulatorios, lo que llevó a algunos autores a referirse a este hallazgo electrocardiográfico como una pandemia infradiagnosticada (27)(28)(29)(30)(31) . De hecho, en un estudio que utilizó 1000 ECG no seleccionados, consecutivos, en pacientes hospitalizados, observó la presencia del BIA en el 47% de los pacientes que tenían ritmo sinusal normal (28) .…”

“…Se considera que el BIA es un fuerte predictor del desarrollo de FA. Los pacientes con BIA poseen una desincronización interauricular que puede predisponerlos a desarrollar FA (31)(32)(33)(34) . En un estudio de cohorte prospectivo con un seguimiento medio de 16 meses, la prevalencia de BIA fue comparado entre 308 pacientes que desarrollaron FA con un grupo control de 308 pacientes que permanecieron en ritmo sinusal durante el período de seguimiento.…”