A new experimental model and formula for flow determination and possible application in sizing of interatrial communication.
The concept of an artificial interatrial communication in application of the Fontan procedure in high risk patients has raised the problem to exactly determine the shunt amount. This experimental study shows that in vitro flow studies of interatrial communications can be performed without animal blood and PTFE membranes respectively. Furthermore the simulation of an pulmonary vascular venous flow is not necessary. Additionally a new formula with acceptable accuracy for flow estimation is derived from the presented data obtained by this study.
Jahnke
A W
AW
Clinic of Cardiac Surgery, University of Lübeck, Germany.
Kraatz
E G
EG
Blömer
F
F
Paul
J
J
Pfister
G
G
Sievers
H H
HH
D000818:Animals; D001775:Blood Circulation; D018729:Fontan Procedure; D006344:Heart Septal Defects, Atrial / Q000503:physiopathology* / Q000601:surgery; D006439:Hemodynamics; D008955:Models, Cardiovascular; D008961:Models, Structural; D011138:Polytetrafluoroethylene; D019736:Prostheses and Implants; D011652:Pulmonary Circulation; D013552:Swine
D011138:Polytetrafluoroethylene