scholarly journals Comparison of stroke volume measurements during hemodialysis using bioimpedance cardiography and echocardiography

2017 ◽  
Vol 22 (2) ◽  
pp. 201-208 ◽  
Author(s):  
Michael J. Germain ◽  
Jyovani Joubert ◽  
Daniel O'Grady ◽  
Brian H. Nathanson ◽  
Yossi Chait ◽  
...  
Keyword(s):  
Stroke Volume ◽  
Volume Measurements ◽  
Bioimpedance Cardiography

Noninvasive Beat-to-Beat Stroke Volume Measurements to Determine Preload Responsiveness during Mini-Fluid Challenge in a Swine Model

Shock ◽  
2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Ryoung Eun Ko ◽  
Geuk Young Jang ◽  
Chi Ryang Chung ◽  
Jin Young Lee ◽  
Tong In Oh ◽  
...  
Keyword(s):  
Stroke Volume ◽  
Fluid Challenge ◽  
Swine Model ◽  
Preload Responsiveness ◽  
Volume Measurements

Hemodynamic effects of cardiac cycle-specific increases in intrathoracic pressure

1986 ◽  
Vol 60 (2) ◽  
pp. 604-612 ◽  
Author(s):  
M. R. Pinsky ◽  
G. M. Matuschak ◽  
L. Bernardi ◽  
M. Klain
Keyword(s):  
Stroke Volume ◽  
Cardiac Cycle ◽  
Intrathoracic Pressure ◽  
Canine Model ◽  
Left Ventricular ◽  
Filling Pressure ◽  
Cardiac Performance ◽  
Hemodynamic Effects ◽  
Volume Measurements ◽  
Systemic Venous Return

Changes in intrathoracic pressure (ITP) can influence cardiac performance by affecting ventricular loading conditions. Because both systemic venous return and factors determining left ventricular (LV) ejection may vary over the cardiac cycle, phasic increases in ITP may differentially affect preload or afterload if delivered at specific points within the cardiac cycle. We studied the hemodynamic effects of cardiac cycle-specific increases in ITP (pulses) delivered by a high-frequency jet ventilator in an acute closed-chested canine model (n = 11), using electromagnetic flow probes to measure biventricular stroke volume. Measurements were taken during a control condition after the induction of acute ventricular failure (AVF) by propranolol hydrochloride and volume infusion. ITP was independently varied without changing lung volume by the inflation of thoracoabdominal binders. Although synchronous pulses had minimal hemodynamic effects in unbound controls, binding pulses timed to occur in early diastole resulted in decreases in LV filling pressure and left ventricular stroke volume (SVlv) (P less than 0.05). In the AVF condition, pulses increased LV performance, evidenced by increases in SVlv (P less than 0.01), despite decreases in LV filling pressure (P less than 0.05). This effect is maximized by binding and by timing the pulses to occur in systole. We conclude that cardiac cycle-specific increases in ITP can significantly affect cardiac performance. These effects appear to be related to the ability of such timed pulses to selectively affect LV preload and afterload.

Non-invasive continuous arterial pressure, heart rate and stroke volume measurements during graded head-up tilt in normal man

1997 ◽  
Vol 7 (2) ◽  
pp. 97-101 ◽  
Author(s):  
L. A. H. Critchley ◽  
F. Conway ◽  
P. J. Anderson ◽  
B. Tomlinson ◽  
J. A. J. H. Critchley
Keyword(s):  
Heart Rate ◽  
Arterial Pressure ◽  
Stroke Volume ◽  
Non Invasive ◽  
Volume Measurements ◽  
Head Up Tilt ◽  
Normal Man

scholarly journals The Effect of Changing Arterial Transducer Position on Stroke Volume Measurements Using FloTrac System Version 4.0: A Pilot Experimental Study

2021 ◽  
Vol 3 (6) ◽  
pp. e0465
Author(s):  
Jiro Ito ◽  
Daisuke Kawakami ◽  
Takeshi Morimoto ◽  
Hiroshi Ueta ◽  
Takahiro Shimozono ◽  
...  
Keyword(s):  
Experimental Study ◽  
Stroke Volume ◽  
Volume Measurements

scholarly journals Real-time stroke volume measurements for the optimization of cardiac resynchronization therapy parameters

EP Europace ◽  
2010 ◽  
Vol 12 (9) ◽  
pp. 1270-1274 ◽  
Author(s):  
J. M. Dizon ◽  
T. A. Quinn ◽  
S. E. Cabreriza ◽  
D. Wang ◽  
H. M. Spotnitz ◽  
...  
Keyword(s):  
Stroke Volume ◽  
Cardiac Resynchronization Therapy ◽  
Real Time ◽  
Cardiac Resynchronization ◽  
Resynchronization Therapy ◽  
Volume Measurements
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