Mechanism of decrease in cardiac output caused by opening the chest
1964 ◽
Vol 207
(5)
◽
pp. 1112-1116
◽
Keyword(s):
The cardiac output in ten dogs fell an average of 18.8% (±1.1 sem) when the chest was opened. Opening the chest, which increased the extracardiac pressure, shifted the cardiopulmonary-function curve (relating right atrial pressure to cardiac output) toward higher atrial pressure levels. This caused the cardiopulmonary curve to equate with the animal's systemic-function curve at a lower cardiac output; the greater the extracardiac pressure the lower the output. Thus, changes in extracardiac pressure can alter cardiac output even though the pumping ability of the heart is not altered.
Keyword(s):
1983 ◽
Vol 3
(3)
◽
pp. 287-290
◽
1963 ◽
Vol 204
(5)
◽
pp. 888-894
◽
Keyword(s):
1983 ◽
Vol 54
(5)
◽
pp. 1261-1268
◽
Keyword(s):
2001 ◽
Vol 16
(3)
◽
pp. 108-114
◽
Keyword(s):
1992 ◽
Vol 262
(6)
◽
pp. H1802-H1808
◽
Keyword(s):
1991 ◽
Vol 260
(1)
◽
pp. R32-R38