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Bishop R L - - 1976
Arterial pH, Pco2, and osmolality were determined serially during cardiac resuscitation in patients and in dogs, with and without administration of sodium bicarbonate. These studies demonstrate that (1) in the absence of preexisting acidosis, severe acidosis can be prevented by adequate ventilation alone; (2) sodium bicarbonate administration results in a ...
Flynn J T - - 1976
Arterial plasma concentrations of PGF2alpha and 15-keto-PGF2alpha were determined in sham shock and splanchnic artery occlusion shock dogs. Arterial PGF2alpha concentrations (expressed as percentage of control) increased significantly in the SAO group when compared to the sham group during postrelease sampling periods. Similarly, 15-keto-PGF2alpha, a major metabolite of PGF2alpha also ...
Tada K - - 1975
A new non-invasive method for the assessment of cerebral collateral circulation via the circle of Willis using an ultrasonic directional Doppler flowmeter is described. The technique was found useful in measuring the capacity of cerebral collateral circulation and would be applicable not only in internal medicine but also in neurosurgery.
Valle M - - 1975
The changes in collateral circulation after coronary artery reconstruction were analyzed in 75 patients with 177 bypass grafts and 18 complementary gas endarterectomies. The quantity of collateral circulation was directly proportional to the degree of coronary obstruction. The changes in collateral circulation depended on the success of coronary surgery or ...
Ryan J W - - 1975
3-H5,6-Prostaglandin F1alpha is largely eliminated from the circulation during a single passage through the pulmonary vascular bed. Its elimination requires cellular uptake. The volume of distribution and the mean transit time of the radioactivity are greater than those of an intravascular marker, blue dextran. The lungs retain 25-30% of the ...
Wagner P D - - 1975
We have recently described a new method for measuring distributions of ventilation-perfusion ratios (VA/Q) based on inert gas elimination. Here we report the initial application of the method in normal dogs and in dogs with pulmonary embolism, pulmonary edema, and pneumonia. Characteristic distributions appropriate to the known effects of each ...
Russell E - - 1975
A new sign of arteriographic bleeding, diastolic clearance of angiographic contrast medium selectively from the bleeding vessel, is described. The use of this sign must be confined to rapidly bleeding end-vessel distributions or when nonopacified collateral circulation is not a consideration. It should not be confused with the normal washout ...
Pastershank S P - - 1975
In three cases of intrarenal arterial collateral circulation the collateral channels developed between interlobar arteries in diseased kidneys. Probably these originated in hypertrophied spiral vessels that had arisen from the interlobar arteries in the area of the minor calyces. This form of collateral circulation will undoubtedly be recognized more frequently ...
Farebrother M J - - 1974
Relations between expiratory reserve volume (ERV), closing volume (CV) as a percentage of vital capacity (CV/VC%), and pulmonary gas exchange have been investigated in the sitting and supine postures in eight severely obese subjects before and after substantial weight loss. CV/VC% exceeded predicted values but did not change with posture ...
Gaskell P - - 1971
When the main artery in the lower limb is occluded and narrow collateral vessels by-passing the obstruction offer the limiting resistance to blood flow, the increase in arterial pressure at the ankle on assuming the erect posture is greater than would be predicted by consideration of the hydrostatic factors. In ...
Ghoreyeb, Albert A.
The most striking point brought out in this study is that as long as a definite pressure is maintained in either the pulmonary or bronchial circulations, the admixture of bloods is extremely limited. It is easily conceivable that more mixture occurs normally than under the conditions of the experiment, but ...
Szidon J P - - 1969
Although the pulmonary blood vessels receive an ample supply of nerves, it has been difficult to prove that these nerves operate in the regulation of the pulmonary circulation. In the present study, using the isolated lobe of the lung perfused in situ, waves in pulmonary arterial pressure were induced and ...
VINEBERG A M - - 1962
Twenty-five dogs were exposed to gradual coronary occlusion by placing Ameroid constrictors around the origins of the left circumflex and anterior descending coronary arteries. Previous experiments have demonstrated that these constrictors absorb water and, over a period of three weeks, narrow the cross-sectional area of the two arteries to 50% ...
COMROE,J.H. JR.
Contents: Use of a new ultra-rapid freeze technique to study living structure as related to function in the heart and pulmonary circulation The instantaneous measurement of pulmonary capillary blood flow in man; breath-by-breath measurement of R.Q. in man The reflex effects on respiration and circulation of sudden immersion of man ...
Ghoreyeb A A - - 1913
The most striking point brought out in this study is that as long as a definite pressure is maintained in either the pulmonary or bronchial circulations, the admixture of bloods is extremely limited. It is easily conceivable that more mixture occurs normally than under the conditions of the experiment, but ...
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