Characterisation of the Right Ventricular Pressure-Volume Relationship: Comparison with the Left Ventricle

1986 ◽  
Vol 71 (s15) ◽  
pp. 55P-55P
Author(s):  
A.N. Redington ◽  
H. Gray ◽  
R.D. Dawson ◽  
M.E. Hodson ◽  
P.J. Oldershaw
Keyword(s):  
Left Ventricle ◽  
Right Ventricular ◽  
Ventricular Pressure ◽  
Volume Relationship ◽  
Pressure Volume Relationship ◽  
The Right

Right Ventricular Pressure-Volume Relationship to Evaluate Right Ventricular-Pulmonary Arterial Coupling and Energetics

2015 ◽  
Vol 21 (10) ◽  
pp. S152
Author(s):  
Takafumi Sakamoto ◽  
Kohtaro Abe ◽  
Kazuya Hosokawa ◽  
Keiji Oi ◽  
Yasushi Mukai ◽  
...  
Keyword(s):  
Right Ventricular ◽  
Ventricular Pressure ◽  
Volume Relationship ◽  
Pressure Volume Relationship ◽  
Pulmonary Arterial

Right ventricular pressure response to +GZ acceleration stress

1982 ◽  
Vol 53 (4) ◽  
pp. 908-913 ◽  
Author(s):  
J. E. Whinnery ◽  
M. H. Laughlin
Keyword(s):  
Right Ventricular ◽  
Diastolic Pressure ◽  
Vena Cava ◽  
Systolic Pressure ◽  
Ventricular Pressure ◽  
Miniature Swine ◽  
Right Ventricular Systolic Pressure ◽  
Ventricular Systolic Pressure ◽  
The Right ◽  
Acceleration Stress

Measurements of right ventricular pressure in miniature swine were made at +Gz levels from +1 through +9 Gz. Polyethylene catheters were chronically placed in the cranial vena cava of five 2-yr-old female miniature swine (35–50 kg). The catheters were large enough to allow the introduction of a Millar pressure transducer into the venous system for placement in the right heart. The animals were fitted with an abdominal anti-G suit, restrained in a fiberglass couch, and exposed to the various +Gz levels on a centrifuge while fully conscious and unanesthetized. Right ventricular pressure and heart rate were measured during and for 2 min following 30-s exposures to each level of +Gz stress. The maximum right ventricular systolic pressure observed during +Gz was 200 Torr at +5 Gz with the maximum diastolic pressure being 88 Torr observed at +5 Gz. Mean heart rates were 200–210 beats/min at all levels of +Gz greater than or equal to +3 Gz when the animal remained stable. Mean maximum right ventricular pressures during +Gz stress were observed to increase through +5 Gz (85 Torr) and to decrease at higher levels of +Gz, indicating that through +5 Gz there is at least a partial compensation during acceleration stress. Decompensation in response to the stress began to occur during acceleration above +5 Gz with all animals decompensating during +9 Gz.

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