Experimental and first clinical experiences with implantable ultrasonic Doppler probes for postoperative bypass control after coronary surgery.
Concerning postoperative bypass hemodynamics after open heart surgery only few data are known. With this new implantable doppler probe we developed an easy-to-use bedside method for monitoring postoperative bypass function after coronary artery bypass grafting. The accuracy of our method is shown by using a circulation model and by animal studies. Furthermore first clinical data are shown which support our conclusion of having found a sensitive method for monitoring small vessels' hemodynamics.
Lass
M
M
Department of Cardiac Surgery, University of Ulm, Germany.
Paulat
K
K
Oertel
F
F
Hübner
C
C
Welz
A
A
Hannekum
A
A
D000368:Aged; D000818:Animals; D001783:Blood Flow Velocity; D001026:Coronary Artery Bypass; D003326:Coronary Circulation / Q000502:physiology*; D003331:Coronary Vessels / Q000000981:diagnostic imaging* / Q000503:physiopathology; D004285:Dogs; D005260:Female; D006083:Graft Occlusion, Vascular / Q000000981:diagnostic imaging; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008875:Middle Aged; D008955:Models, Cardiovascular; D011184:Postoperative Period; D019736:Prostheses and Implants; D014463:Ultrasonography / Q000295:instrumentation*