Title :
Minimum time temperature regulation and patient safety during cardiopulmonary bypass
Author :
Ghazanshahi, Shahin D. ; Yamashiro, Stanly M.
Author_Institution :
Dept. of Electr. Eng., California State Univ., Fullerton, CA, USA
fDate :
29 Oct-1 Nov 1998
Abstract :
The regulation of patient temperature during cardiopulmonary bypass surgery according to a minimum-time strategy was explored. A minimal two-compartment model was used to describe human thermoregulation. Extracorporeal heat exchange was modeled empirically in terms of how the heat exchanger efficiency changes with blood flow. By applying temperature-dependant constraints, it was possible to maintain key patient safety standards while still minimizing the total time required for cooling and rewarming
Keywords :
biothermics; blood; cardiovascular system; haemodynamics; heat exchangers; heat transfer; minimisation; safety; surgery; temperature control; time optimal control; blood temperature; cardiopulmonary bypass surgery; cooling time; extracorporeal heat exchange; heat exchanger efficiency; human thermoregulation; minimal two-compartment model; minimum-time strategy; patient safety standards; patient temperature regulation; rewarming time; temperature-dependant constraints; Biological system modeling; Biomedical engineering; Blood flow; Cardiology; Cooling; Humans; Reactive power; Safety; Skin; Temperature control;
Conference_Titel :
Engineering in Medicine and Biology Society, 1998. Proceedings of the 20th Annual International Conference of the IEEE
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-5164-9
DOI :
10.1109/IEMBS.1998.746227