Theoretical analysis of oxygen transport during hypothermia
نویسندگان
چکیده
منابع مشابه
Effect of melatonin on the blood oxygen transport during hypothermia and rewarming in rats.
PURPOSE We aimed to study effect of melatonin on the blood oxygen transport during hypothermia and rewarming in rats. MATERIAL/METHODS Cold exposure was performed on male rats (body weight 220-270 g, n=48) for 120 minutes under the box water temperature of 19 degrees C; rewarming took the next 120 min, with a mean rate of 0.06 degrees C/min. Melatonin was administered intraperitoneally 30 min...
متن کاملCerebral blood flow and cerebral oxygen consumption during hypothermia.
C URRENTLY there is widespread interest in the physiologic effects of cold, and in the use of hypothermia with surgery (I, 2). Although no gross neurologic derangements have been observed following the application of this technique in man and experimental animals (3, 4), it seemed appropriate that a special study be made of the effects of hypothermia on cerebral physiology. Cerebral blood flow,...
متن کاملTheoretical analysis of effects of blood substitute affinity and cooperativity on organ oxygen transport.
Hemoglobin-based O(2) carriers (HBOCs), which are developed as an alternative to blood transfusion, provide O(2) delivery. At present, there is no model to predict the O(2) transport for a red blood cell-HBOC mixture on a whole organ basis. On the basis of the first principles of mass balance, a model of O(2) transport for an organ was derived to calculate venous Po(2) (Pv(O(2))) for a given in...
متن کاملPulmonary oxygen transport during activity in lizards.
Oxygen consumption (MO2), effective alveolar ventilation (Veff), arterial and alveolar PO2 (PaO2, PAO2) and the alveolar-arterial PO2 difference [(A--a)PO2] were determined in the lizards Varanus exanthematicus and Iguana iguana at rest and during treadmill exercise at 35 degrees C. In both species, Veff increased more rapidly than MO2 giving rise to an increased PAO2. In contrast, PaO2 remaine...
متن کاملA theoretical model for oxygen transport in skeletal muscle under conditions of high oxygen demand.
Oxygen transport from capillaries to exercising skeletal muscle is studied by use of a Krogh-type cylinder model. The goal is to predict oxygen consumption under conditions of high demand, on the basis of a consideration of transport processes occurring at the microvascular level. Effects of the decline in oxygen content of blood flowing along capillaries, intravascular resistance to oxygen dif...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Clinical Monitoring
سال: 1986
ISSN: 0748-1977,1573-2614
DOI: 10.1007/bf01620546