DIARRHOEA.
Diarrhoea is a less frequent but more dangerous disorder during pregnancy than constipation. In the early and latter months of gestation diarrhoea is liable to occur from mechanical compression of the rectum by the gravid uterus. Dysentery, with tormina and tenesmus, is a particularly unfavorable complication. The dangers are apparent. Not only is the blood impoverished, but abortion or premature labor may be induced. Every diarrhoea occurring during pregnancy demands immediate attention. Small doses of argentic nitrate in combination with opium, in pill form, are useful in mild cases of diarrhoea, while the deodorized tincture of opium in starch-water enemata is indicated in dysentery.
Diseases of the Liver.
In normal pregnancy the functions of the liver in the secretion of bile and the excretion of cholesterin are not materially modified. The case is different with the glycogenic function. Blot in 1856 detected the presence of glycogen in the urine of nearly half the pregnant women examined. He concluded that this glycosuria was physiological. Tarnier in 1857 called attention to certain structural changes in the liver occurring during normal gestation. The liver is enlarged in volume, and a peculiar fatty infiltration within the lobule is perceptible. De Sinéty confirmed Tarnier's observations, finding the fatty infiltration within the centre of the lobule, seldom near the periphery. Robert Barnes and Ewart have added corroboratory testimony. Tarnier ascribes the physiological glycosuria announced by Blot to the fatty infiltration observed by himself. Each of these three functions of the liver, the secretion of bile, the excretion of cholesterin, and the glycogenic function, may undergo pathological exaggeration during pregnancy.
ICTERUS.
Icterus is observed with relative infrequency during gestation. Two distinct forms are recognized—simple jaundice, with bright-yellow coloration of conjunctivæ and skin, without fever and cerebral symptoms; and malignant jaundice, with dull-yellow coloration of conjunctivæ and skin, with fever and cerebral symptoms.
Simple Jaundice.—Simple icterus may occur at any time during pregnancy, runs its usual course, and exercises, as a rule, no serious influence upon the maternal health. The effect upon the foetus is grave. If the icterus is intense and lasts for a considerable period of time, the foetus dies and gestation is interrupted. All the foetal tissues are found to be stained with the biliary coloring matters—a condition termed by Lobstein cirrhonosis.
ETIOLOGY.—The causes of simple jaundice in pregnancy are identical with those which produce the condition in the non-gravid state, and are frequently obscure. It is in a high degree probable that pressure from the gravid uterus is without influence, since the symptom may appear at any time during gestation. The pathological condition usually present is catarrh of the mucous membrane of the duct or of the duodenum in the vicinity of the orifice, causing a narrowing of its lumen.
SYMPTOMS.—The conjunctivæ, skin, and urine are colored bright yellow, and there is entire absence of febrile and cerebral symptoms.