Obstruction In Dogs Research Articles

PARTIAL TRACHEAL OBSTRUCTION

In the course of some observations on the blood gases in asthma, 1 certain findings indicated significant changes in the circulatory mechanism. Recently there has been an opportunity to make similar studies on two patients with acute laryngeal edema and interesting changes were found in the blood gases and blood reaction. Though the clinical studies have been temporarily abandoned because of a lack of material, the findings in asthma and acute laryngeal edema led to a series of controlled observations on experimental respiratory obstruction in dogs. The problem was to study the effects of partial tracheal obstruction on the blood gases, blood reaction and volume flow. The object of the present article is to report the results of these experiments. METHOD Since asthma is difficult to produce in dogs and the experimental production of laryngeal edema is unsatisfactory, the following technic was employed to produce tracheal obstruction: Dogs of from

Intestinal Obstruction in Dog

Intestinal Obstruction in Dog

EXPERIMENTAL INTESTINAL OBSTRUCTION IN DOGS WITH ESPECIAL REFERENCE TO THE CAUSE OF DEATH AND THE TREATMENT BY LARGE AMOUNTS OF NORMAL SALINE SOLUTION

In an investigation into the cause of death following a high intestinal obstruction in dogs,1we were able to exclude, as causal factors, an invasion of the blood and organs by bacteria, and any influence due to the absorption of food residues in the stomach or intestine at the time the obstruction was produced. It was also determined that dogs would live under these circumstances for periods of ten days, provided no strangulation was present, and they were given normal salt solution, subcutaneously, while life was considerably shorter than this when a strangulation existed or the saline was withheld, and they received water only by mouth. At autopsy there was constantly found a more or less marked degeneration of the kidney and liver cells, often going on to actual necrosis, and the intestinal mucosa above the obstruction showed an exfoliation of the lining cells, a round-cell infiltration and a