Diarrhœa.—I have, therefore, comparatively little to say about diarrhœa in children, important though it is, for its symptoms force themselves on the notice even of the least observant. There are, however, a few points concerning it worth bearing in mind. Before the commencement of teething, diarrhœa is almost always the result of premature weaning, or of a diet in some respect or other unsuitable. As soon as teething begins, the liability to diarrhœa increases greatly, and cases of it are more than twice as frequent, and twice as fatal, between the ages of six and eighteen months as they were in the first six months of life; while, as soon as teething is over, their number immediately declines again to the half of what it was during the continuance of that process. The practical conclusions to be drawn from these facts are that looseness of the bowels during teething is not a desirable occurrence to be promoted, as some mistakenly imagine, but a risk to be by all means avoided, and I may add, when it does take place, far less easy to control than constipation is to remedy. And next, that in order to prevent its occurrence, care should be taken to make changes in the diet of a child, not during the time when a fresh eruption of teeth is taking place, but during one of the pauses in that process. There are certain seasons of the year when diarrhœa is specially prevalent, independent of any change in diet, or alteration, in any respect, of the circumstances in which the child is placed. Thus, in May, June, and July, diarrhœa is twice as prevalent among children at all ages as in November, December, and January; and in August, September, and October, its prevalence is three times as great as during the winter months. The high mortality of children in the summer months is due almost entirely to diarrhœa, and even the bitter Northern winter of a city like Berlin is a third less fatal to infants and young children than the heat of its short summer.
The next point to remember is that mere looseness of the bowels is never to be regarded during the first three years of life as of no importance; for I have seen infants die exhausted from its continuance, even though the examination of the body after death showed almost no sign of disease. Doctors distinguish two forms of diarrhœa: the simple, or, as it is technically called, catarrhal diarrhœa; and inflammatory diarrhœa, or dysentery. The one may pass into the other, just as a common cold, or catarrh, may pass, if unattended to, into a dangerous bronchitis.
Simple diarrhœa usually comes on gradually, and is some days before it grows severe, or passes into the more dangerous dysentery. Simple precautions will often arrest its progress, and, among them, rest in bed is one of the most important. Over and over again I have known a diarrhœa which had continued in spite of all sorts of medicines so long as the child was running about, cease at once when the child was kept for a couple of days in bed. The reason of this is obvious; constant movement of the intestines themselves, which serves so important a part in maintaining due action of the bowels, is increased by the upright position and by movement, and is reduced to a minimum by the horizontal position. A second precaution concerns the diet; solid food and animal broths should for a time be discontinued, and arrowroot, milk and water, and rice substituted for it, for a day or two, with isinglass jelly, and the white decoction of which I have already spoken. It is not always that astringents are suitable at the beginning of an attack, and the sending to the neighbouring chemist for diarrhœa medicine, which often contains an unknown quantity of opium, is always risky, frequently mischievous. In a first attack of diarrhœa, the doctor should always be consulted, for when it is associated with disorder of the liver a mercurial may in the first instance be needed, or possibly very small doses of a saline medicine, such as Epsom salts, with the addition of a few drops of the tincture of rhubarb; or, again, if the diarrhœa sets in with profuse watery discharges, sulphuric acid for the first few hours is often of extreme service. It is at a later time that direct astringents commonly have their use; and the mother, who in her child's first attack of diarrhœa has had the advice of a judicious doctor, will often be helped by him to manage for herself slight returns of the ailment.
Inflammatory diarrhœa, or dysentery, not only follows the continuance of the simpler forms of the disease, but sometimes in the hot months of summer or autumn sets in suddenly with violence. It then frequently commences with vomiting, and the stomach may continue so irritable for twenty-four hours as not to retain even a teaspoonful of cold water. At the same time the over-action of the bowels sets in, and twenty or thirty evacuations may be passed in twenty-four hours. The motions soon lose their natural character, and become watery, slimy, and mixed with blood. They are at first expelled with violence, afterwards with much pain, effort, and often fruitless straining. With these local symptoms, the child, as might be expected, is very ill, feverish, and stupid, though without sound sleep, much exhausted, and its nervous system so disturbed as to occasion frequent twitchings of the fingers and of the corners of the mouth, while sometimes actual convulsions take place. The thirst is intense, the child calling constantly for cold water, and crying out for more the moment the cup is taken away from its lips; while the loss of flesh and the exhaustion are more rapid than in any other disease with which I am acquainted. The fat happy babe of four and twenty hours before is scarcely to be recognised in the miserable little being, with sunken lustreless eyes, and wizened features, and miserable countenance, lying in a state of half-stupor, sensible only to pain, which yet rouses it but to utter a moan, and then sinks again into silent suffering. I can well believe what we are told, that in some countries this, the so-called Summer Complaint of many of the American cities, sometimes carries off children in a few hours.
If a fatal termination does not take place speedily, the disease passes into the chronic stage, the diarrhœa diminishing in frequency, but the pain and straining, and the unhealthy character of the evacuations persisting. Ulceration of the bowels has taken place, emaciation becomes extreme, and the child often sinks at the end of several weeks, worn out by suffering; while recovery, doubtful at the best, is always very slow. But I need not pursue this subject further: enough has already been said to show how little infantile diarrhœa is a disorder for domestic management.
Peritonitis, or inflammation of the membrane covering the bowels and lining the cavity of the belly, is of excessive rarity in its acute form; and is attended by such general illness and such severe local suffering, that it is impossible to overlook it or to misapprehend its gravity. Severe pain in the belly is sometimes complained of by children, and is due to what is termed colic, a spasm of the bowels which is generally associated with constipation. The great test of the cause of the pain is furnished by the presence or absence of tenderness on pressure. The pain of colic is relieved by gentle pressure and gentle rubbing. The pain of inflammation in any degree and of any kind is aggravated by them. This applies also to cases, not indeed very common, in which inflammation is set up by some small body, such as a cherry-stone getting fixed in a little offshoot or appendage of about the size and length of the little finger, connected with the commencement of the large bowel, and producing ulceration. In these circumstances the bowels are confined, there are nausea and sickness, together with pain and tenderness of the belly, especially on the right side. The disease is a very dangerous one, and often proves fatal in the course of a few days. I refer to it because I have often seen it overlooked both by parents and doctors at its outset, since the pain then is often not severe nor the tenderness intense, and because I have seen the patient's condition rendered hopeless by strong aperients being given to overcome the constipation which was supposed to be all that ailed the child. I repeat then the caution, never to overlook the existence of tenderness, never to attempt to treat a case in which it is present; but always to call in medical advice, and above all always to abstain, unless ordered by a medical man, in every such case from the use of aperients.
Large Abdomen.—I must not leave the subject of disorder of the digestive organs without some reference to a condition which often excites much needless anxiety among mothers, namely, the large size of a child's belly. This is sometimes supposed to be a certain evidence of the presence of worms, at other times to be a positive proof of the existence of grave disease, especially of disease of the mesenteric glands, or glands of the bowels as they are popularly termed. It is evidence of neither the one nor the other.
If you go into a gallery of the old masters, and look at any of the pictures of angels which are generally to be seen there in such abundance, you will probably be struck in the case of all the child angels by what will seem to you the undue size of their abdomen. You will notice this even in the works of painters who, like Raphael, most idealise their subjects, while in those of others who, like Rubens, interpret nature more literally, the apparent disproportion becomes grotesque; or, in the coarser hands of Jordaens, even repulsive.
These painters were, after all, true interpreters of nature. In infancy and early childhood the abdomen is much larger comparatively than in the grown person. For this there is a twofold cause; the larger size of the liver on the one hand, and the smaller development of the hips on the other. In a weakly child this appearance is exaggerated by its want of muscular power, which allows the intestines to become much distended with air. If the child is not merely weakly but also ricketty, the contracted chest will leave less room than natural for the lungs, while at the same time the ordinary development of the hips being arrested by the rickets, the disproportion is further increased both by that and by the flatulence due to the imperfect digestion with which the condition is almost always associated.
In no case need the mere size of the abdomen occasion grave anxiety, so long as when the child lies upon its back the abdomen is uniformly soft, nor so long as even if tense it is not tender, and as it everywhere gives out a hollow sound like a drum when tapped with the finger.