The Role of Doppler Echocardiography in Predicting Left Atrial Pressure During Rest and Exercise

2013 ◽  
Vol 29 (10) ◽  
pp. S120
Author(s):  
A Chelvanathan ◽  
S Wright ◽  
T Gray ◽  
S Esfandiari ◽  
F Fuchs ◽  
...  
Keyword(s):  
Doppler Echocardiography ◽  
Left Atrial ◽  
Atrial Pressure ◽  
Left Atrial Pressure ◽  
Rest And Exercise

Accuracy of the Assessment of Left Atrial Pressure Using Doppler Echocardiography

2010 ◽  
Vol 16 (8) ◽  
pp. S18
Author(s):  
Asim M. Rafique ◽  
Anita Phan ◽  
Tehrani Faramarz ◽  
Nick Teleten ◽  
Simon Biner ◽  
...  
Keyword(s):  
Doppler Echocardiography ◽  
Left Atrial ◽  
Atrial Pressure ◽  
Left Atrial Pressure

Increased left atrial pressure does not alter renal function in the conscious primate

1982 ◽  
Vol 243 (1) ◽  
pp. R119-R124
Author(s):  
K. G. Cornish ◽  
J. P. Gilmore
Keyword(s):  
Blood Volume ◽  
Nonhuman Primate ◽  
Left Atrial ◽  
Macaca Fascicularis ◽  
Atrial Pressure ◽  
Left Atrial Pressure ◽  
Blood Volume Expansion ◽  
Stretch Receptors ◽  
Renal Responses

To study the functional role of the atriorenal reflex in the nonhuman primate, we chronically instrumented six Macaca fascicularis with left atrial snares and left atrial and aortic catheters. After inserting a bladder catheter, we determined hemodynamic and renal responses of the conscious chair-restrained monkey to increased left atrial pressure. In 23 snare experiments, no significant changes in renal or cardiovascular function were observed even though left atrial pressure increased from 6.5 +/- 3.3 to 16.2 +/- 3.4 mmHg. The animals were subjected also to blood volume expansion with isoncotic isotonic dextran solutions (+15% of calculated blood volume). They responded normally to this volume stimulus. Conscious dogs prepared in the same manner as the nonhuman primate exhibited diuresis in response to elevations of atrial pressure. We conclude that left atrial stretch receptors are not importantly involved in volume homeostasis in the nonhuman primate.

Sign in / Sign up

Export Citation Format

Share Document