Big atria, little P waves: unexpected mismatch between chamber volume and electrocardiogram signal in “false” atrial fibrillation

Several prior studies showed that, in the presence of severely dilated atria because of atrial septal defects [1] or mitral valvular disease [2], increase in atrial conduction times, prolonged P-wave duration, regional conduction slowing, reduced atrial voltage, and more frequent electrical scar, co...

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Published inThe American journal of emergency medicine Vol. 34; no. 8; pp. 1740.e1 - 1740.e2
Main Authors Carpagnano, Giuseppe, MD, Ieva, Riccardo, MD, Correale, Michele, MD, Di Biase, Matteo, MD, Brunetti, Natale Daniele, MD, PhD
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.08.2016
Elsevier Limited
Subjects
Aged, 80 and over
Atrial Fibrillation - diagnosis
Cardiac arrhythmia
Cardiac Volume
Cardiomegaly - diagnosis
Cardiomegaly - physiopathology
Diagnostic Errors
Electrocardiography
Emergency
Female
Heart Atria - pathology
Heart Atria - physiopathology
Humans
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Summary:Several prior studies showed that, in the presence of severely dilated atria because of atrial septal defects [1] or mitral valvular disease [2], increase in atrial conduction times, prolonged P-wave duration, regional conduction slowing, reduced atrial voltage, and more frequent electrical scar, compared with control subjects, can be found.
Bibliography:ObjectType-Case Study-2
SourceType-Scholarly Journals-1
ObjectType-Feature-4
content type line 23
ObjectType-Report-1
ObjectType-Article-3
ISSN:0735-6757
1532-8171
DOI:10.1016/j.ajem.2016.01.001