Anomalies of the Systemic Venous Return

2006 ◽  
pp. 319-326
Author(s):  
C. van Doorn ◽  
M. R. de Leval
2005 ◽  
Vol 289 (2) ◽  
pp. H549-H557 ◽  
Author(s):  
Jamie R. Mitchell ◽  
William A. Whitelaw ◽  
Rozsa Sas ◽  
Eldon R. Smith ◽  
John V. Tyberg ◽  
...  

During mechanical ventilation, phasic changes in systemic venous return modulate right ventricular output but may also affect left ventricular function by direct ventricular interaction. In 13 anesthetized, closed-chest, normal dogs, we measured inferior vena cava flow and left and right ventricular dimensions and output during mechanical ventilation, during an inspiratory hold, and (during apnea) vena caval constriction and abdominal compression. During a single ventilation cycle preceded by apnea, positive pressure inspiration decreased caval flow and right ventricular dimension; the transseptal pressure gradient increased, the septum shifted rightward, reflecting an increased left ventricular volume (the anteroposterior diameter did not change); and stroke volume increased. The opposite occurred during expiration. Similarly, the maneuvers that decreased venous return shifted the septum rightward, and left ventricular volume and stroke volume increased. Increased venous return had opposite effects. Changes in left ventricular function caused by changes in venous return alone were similar to those during mechanical ventilation except for minor quantitative differences. We conclude that phasic changes in systemic venous return during mechanical ventilation modulate left ventricular function by direct ventricular interaction.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Dominik Daniel Gabbert ◽  
Christopher Hart ◽  
Michael Jerosch-Herold ◽  
Philip Wegner ◽  
Mona Salehi Ravesh ◽  
...  

Circulation ◽  
1979 ◽  
Vol 60 (5) ◽  
pp. 1091-1096 ◽  
Author(s):  
J G Stevenson ◽  
I Kawabori ◽  
W G Guntheroth ◽  
T K Dooley ◽  
D Dillard

1974 ◽  
Vol 68 (5) ◽  
pp. 742-749 ◽  
Author(s):  
J. Stark ◽  
E.D. Silove ◽  
J.F.N. Taylor ◽  
G.R. Graham ◽  
J.W. Kirklin

2012 ◽  
Vol 2012 ◽  
pp. 1-5 ◽  
Author(s):  
Edward Gologorsky ◽  
Angela Gologorsky ◽  
Eliot Rosenkranz

Fontan and Baudet described in 1971 the separation of the pulmonary and systemic circulations resulting in univentricular physiology. The evolution of the Fontan procedure, most notably the substitution of right atrial-to-pulmonary artery anastomosis with cavopulmonary connections, resulted in significantly improved late outcomes. Many patients survive well into adulthood and are able to lead productive lives. While ideally under medical care at specialized centers for adult congenital cardiac pathology, these patients may present to the outside hospitals for emergency surgery, electrophysiologic interventions, and pregnancy. This presentation presents a “train of thought,” linking the TEE images to the perioperative physiologic considerations faced by an anesthesiologist caring for a patient with Fontan circulation in the perioperative settings. Relevant effects of mechanical ventilation on pulmonary vascular resistance, pulmonary blood flow and cardiac preload, presence of coagulopathy and thromboembolic potential, danger of abrupt changes of systemic vascular resistance and systemic venous return are discussed.


Sign in / Sign up

Export Citation Format

Share Document