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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1990-11-5
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pubmed:abstractText |
The effect of an abrupt reduction in atrial pressures on atrial natriuretic peptide (ANP) secretion was studied in four patients with complete atrioventricular block with a dual-chamber pacemaker when the pacing mode was changed from the VVI to the DVI mode at an equal rate of 70/min. Simultaneous continuous hemodynamic monitoring was performed using a balloon-tipped thermodilution catheter. With DVI pacing, there was an immediate decrease of right atrial pressure from 4.5 +/- 0.9 to 1.8 +/- 1.1 mm Hg, and a reduction of pulmonary arterial wedge pressure from 7 +/- 0.8 to 4.5 +/- 0.9 mm Hg, together with a rise in cardiac output from 3.1 +/- 0.2 to 3.7 +/- 0.2 L/min. However, despite a constant hemodynamic status after dual-chamber pacing, the arterial ANP level steadily decreased from 151 +/- 26 pg/ml to a steady low level of 78 +/- 15 pg/ml after 20 minutes of dual-chamber pacing (percentage reduction- 48 +/- 8%, p less than 0.05). This persisted until the end of the study at 60 minutes. The time-dependent decay in ANP secretion after an abrupt and constant change in hemodynamic status should be considered when interpreting ANP levels.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0002-8703
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
120
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
882-5
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pubmed:dateRevised |
2006-2-27
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pubmed:meshHeading |
pubmed-meshheading:2145733-Aged,
pubmed-meshheading:2145733-Atrial Function,
pubmed-meshheading:2145733-Atrial Natriuretic Factor,
pubmed-meshheading:2145733-Blood Pressure,
pubmed-meshheading:2145733-Cardiac Pacing, Artificial,
pubmed-meshheading:2145733-Heart Block,
pubmed-meshheading:2145733-Humans,
pubmed-meshheading:2145733-Male,
pubmed-meshheading:2145733-Middle Aged,
pubmed-meshheading:2145733-Pulmonary Wedge Pressure
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pubmed:year |
1990
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pubmed:articleTitle |
Delayed decline in plasma atrial natriuretic peptide levels after an abrupt reduction in atrial pressures: observation in patients with dual-chamber pacing.
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pubmed:affiliation |
Department of Medicine, University of Hong Kong, Queen Mary Hospital.
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pubmed:publicationType |
Journal Article
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