Hypoxemia and coronary blood flow.
نویسندگان
چکیده
منابع مشابه
Myocardial blood flow and its distribution in anesthetized polycythemic dogs.
Decreased cardiac output, coronary blood flow, and systemic oxygen transport in polycythemia are attributed to increased blood viscosity and regarded as potentially harmful. We studied the effects of isovolemic polycythemia on these variables as well as on myocardial oxygen consumption and regional myocardial blood flow in 31 anesthetized dogs, seven with cannulated left main coronary arteries....
متن کاملRegional blood flow distribution from the proximal arterial cannula during veno-arterial extracorporeal membrane oxygenation in neonatal dog.
Extracorporeal membrane oxygenation (ECMO) is frequently used for treatment of patients with severe hypoxemia due to life-threatening respiratory failure. Due to this hypoxemia, the myocardium of these patients is insufficiently provided with oxygen, and consequently their cardiac function commonly deteriorates. But veno-arterial (V-A) ECMO provides oxygenated blood to the coronary arteries fro...
متن کاملRegional myocardial blood flow and coronary vascular reserve in unanesthetized young calves exposed to a simulated altitude of 3500 m for 8--10 weeks.
We determined regional myocardial blood flow (15-micrometer tracer microspheres) and hemodynamics in nine normal calves, seven calves with right ventricular (RV) hypertrophy induced by pulmonary artery banding (PAB) at sea level, and five calves exposed to simulated high altitude (HA) of 3,500 m (PB = 500 mm Hg) for 8--10 weeks. Progression of RV hypertrophy was very rapid in HA calves. RV weig...
متن کاملAREGU November 46/5
Thornburg, Kent L., and Mark D. Reller. Coronary flow regulation in the fetal sheep. Am. J. Physiol. 277 (Regulatory Integrative Comp. Physiol. 46): R1249–R1260, 1999.—The two ventricles of the fetal sheep heart have anatomic and biochemical differences that account for their differing functional capabilities and blood flows. Coronary flows to both ventricles have been measured using radiolabel...
متن کاملCoronary flow regulation in the fetal sheep.
The two ventricles of the fetal sheep heart have anatomic and biochemical differences that account for their differing functional capabilities and blood flows. Coronary flows to both ventricles have been measured using radiolabeled microspheres [or left ventricular (LV) flow, by Doppler sensor on the circumflex coronary artery] during experiments of pressure loading and chronic and acute hypoxe...
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ورودعنوان ژورنال:
- The Journal of clinical investigation
دوره 36 7 شماره
صفحات -
تاریخ انتشار 1957