Effect of Atrial Systole on Ventricular Pressure at Variable P-Q Intervals
1958 ◽
Vol 195
(2)
◽
pp. 429-432
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Keyword(s):
Eight dogs with complete atrioventricular heart block showed a definitive relation between the P-Q interval and the systolic left ventricular pressure if the P-Q interval increased or decreased slowly at a regular rate. The ventricular pressure reached a ‘plateau-like’ maximum at a P-Q interval between 0.1 and 0.2 second, and decreased only slightly with somewhat longer P-Q intervals. The lack of abrupt decrease in pressure suggests that the mitral valve closes passively during early atrial diastole and that this prevents rapid regurgitation of blood into the left atrium.
1957 ◽
Vol 192
(1)
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pp. 135-140
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Keyword(s):
2018 ◽
Vol 59
(6)
◽
pp. 758-766
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1970 ◽
Vol 25
(1)
◽
pp. 95
◽
Keyword(s):
2013 ◽
Vol 127
(9)
◽
pp. 1018-1027
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1998 ◽
Vol 31
(2)
◽
pp. 289A
1992 ◽
Vol 262
(1)
◽
pp. H68-H77