UMass Chan Affiliations
Department of Medicine, Division of Cardiovascular MedicineDocument Type
Journal ArticlePublication Date
2009-04-09Keywords
Double-Blind MethodElectrocardiography
Heart Atria
Heart Block
Humans
Predictive Value of Tests
Sensitivity and Specificity
Stroke Volume
Bioinformatics
Biostatistics
Epidemiology
Health Services Research
Metadata
Show full item recordAbstract
BACKGROUND AND HYPOTHESIS: Interatrial block (IAB: P-duration > 100 ms) is poorly recognized in hospital populations. In addition to reduced left atrial function and left atrial enlargement it predicts atrial fibrillation and other arrthymias. P-terminal force (Ptf): +/- biphasic P in lead V(1) > or = area of 1 small square on the electrocardiogram (ECG) grid also indicates left atrial abnormality, particularly left atrial enlargement. These 2 should be related. We determined the intercorrelation. METHODS AND RESULTS: Two blinded observers evaluated 500 consecutive patients' ECGs for both Ptf and IAB utilizing all 12 leads for IAB and V(1) for Ptf. Measurement differences were resolved in a consensus conference. Among 482 usable ECGs, IAB and Ptf were strongly and significantly correlated (chi(2) = 68.041; P < or = .001). CONCLUSION: IAB and Ptf are significantly and strongly correlated and one should be expected in the majority of cases when the other is recognized.Source
Clin Cardiol. 2009 Apr;32(4):181-2. Link to article on publisher's siteDOI
10.1002/clc.20329Permanent Link to this Item
http://hdl.handle.net/20.500.14038/47209PubMed ID
19353697Related Resources
Link to Article in PubMedae974a485f413a2113503eed53cd6c53
10.1002/clc.20329