[Monitoring aortocoronary bypass. A new experimental approach].
Only few data are known concerning haemodynamic parameters and pathomechanisms of small vessels and bypass grafts. No easy-to-use bedside method exists for monitoring. We developed a miniaturised implantable Doppler probe linked to a 20 MHz pulsed Doppler system. In a circulation model and in animal studies we can show the accuracy of this method. We conclude that the implantable pulsed Doppler system is a sensitive method for monitoring the haemodynamics of small vessels.
Lass
M
M
Sektion Herzchirurgie, Universität Ulm.
Oertel
F
F
Hübner
C
C
Paulat
K
K
Schmid
P
P
Uetz
U
U
Hannekum
A
A
D000818:Animals; D001783:Blood Flow Velocity / Q000502:physiology; D001026:Coronary Artery Bypass; D004285:Dogs; D015150:Echocardiography, Doppler / Q000295:instrumentation*; D004867:Equipment Design; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging*; D006801:Humans; D008955:Models, Cardiovascular; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D014159:Transducers
Monitoring des aortokoronaren Bypass. Ein neuer experimenteller Ansatz.