Contribution of Left Atrial Pressure and Dimension to Signal-Averaged P-Wave Duration in Patients With Chronic Congestive Heart Failure

In a group of patients with chronic heart failure, a longer P-wave duration on signal-averaged electrocardiogram was found in those patients with higher pulmonary capillary wedge pressure, whereas the left atrium end-systolic diameter was not significantly different. Furthermore, an acute reduction...

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Bibliographic Details
Published in:The American journal of cardiology 1997-01, Vol.79 (2), p.219-222
Main Authors: Faggiano, Pompilio, D'Aloia, Antonio, Zanelli, Emanuela, Gualeni, Anna, Musatti, Paola, Giordano, Amerigo
Format: Article
Language:English
Subjects:
Adult
Aged
Antihypertensive Agents - administration & dosage
Antihypertensive Agents - therapeutic use
Atrial Fibrillation - physiopathology
Atrial Function, Left
Biological and medical sciences
Cardiology. Vascular system
Cardiomyopathy, Dilated - complications
Chronic Disease
Coronary Disease - complications
Coronary vessels
Electrocardiography
Electrocardiography - drug effects
Electrocardiography - methods
Female
Heart
Heart Atria - pathology
Heart failure
Heart Failure - etiology
Heart Failure - pathology
Heart Failure - physiopathology
Heart failure, cardiogenic pulmonary edema, cardiac enlargement
Humans
Infusions, Intravenous
Male
Medical sciences
Middle Aged
Nitroprusside - administration & dosage
Nitroprusside - therapeutic use
Pulmonary Wedge Pressure - drug effects
Risk Factors
Signal Processing, Computer-Assisted
Systole
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Description
Summary:In a group of patients with chronic heart failure, a longer P-wave duration on signal-averaged electrocardiogram was found in those patients with higher pulmonary capillary wedge pressure, whereas the left atrium end-systolic diameter was not significantly different. Furthermore, an acute reduction in pulmonary capillary wedge pressure induced by sodium nitroprusside infusion was associated with a reduction in P-wave duration.
ISSN:0002-9149
1879-1913
DOI:10.1016/S0002-9149(96)00720-5