HISTORY.--Although no distinct and separate accounts of pseudo-membranous enteritis occur in the medical writings of the ancients, nor even in those dating up to the eighteenth century, yet there may occasionally be detected in some of the descriptions of certain pathological conditions grouped under such titles as colic, passage of gall-stones, tenesmus, coeliac and pituitous affections, diarrhoea, dysentery, etc., the peculiar features of the disease under consideration. This confusion ruled up to a comparatively recent time. J. Mason Good, writing in the first quarter of the nineteenth century, groups the disease as a species of diarrhoea--diarrhoea tubularis--and remarks that he had "never hitherto seen this species classified, and not often described, although it occurred frequently in practice."
Aretæus, in the second century, in discussing the subject of dysentery, speaks of alvine discharges sometimes occurring of a substance of considerable length, in many respects not to be distinguished from a sound piece of intestine, which he regarded as the inner coating of the bowel. {764} This false interpretation of a fact arose from the circumstance that the membranous exudate occasionally assumes a tubular form, bearing the impress of the inner surface of the bowel upon which it is formed, and was perpetuated up to a comparatively recent period by successive authors. This error befell Simpson, Morgagni, Lancisi, and Spindler; the last of whom describes the material discharged as worked up into a "materia alba, longa, compacta."
Bauer under the title of "intestinal moles" describes in Haller's Disputations the discharges of this disease as "concreta fibrosa quædam pro parte pinguedine rara abducta, membranacea molarum ex utero muliebri rejectarum formam accurate sistentia."
In the same volume Kaempf discourses on this subject under the title of "infarction of the intestinal vessels," and also in a separate treatise published somewhat later. In the latter he groups the disease with others of a far different nature, their only point of convergence being preternatural alvine discharges.
Subsequent authors, as a rule, fell into the same error, and it was not until 1818 that membranous enteritis was discriminated by Powell from that condition in which we recognize the presence of gall-stones. Since then more correct views have prevailed, and the disease has now a recognized place in nosology.
ETIOLOGY.--As in other diseases of obscure nature, so in this, there has been much divergence of opinion as to its cause.
The influence of age is striking, as it is rarely seen in childhood or in persons who have passed the forty-fifth year. Of my own cases, the youngest was forty, and the oldest fifty-four. Rilliet and Barthez state that membranous formations in the intestinal canal of children are very rare; that they always occupy the summits of the folds, rarely the intervals, of the mucous membrane; and that they are detached in layers of greater or less extent. They are not diphtheritic. Heyfelder has described similar exudations under the name of enteritis exudatoria.
Sex exerts as marked an influence as age, as the immense preponderance of cases occurs in females. In an analysis of 100 cases, 4 only occurred in males, 2 of which were children. All of my cases were women; with the exception of two cases occurring in males, the same experience is reported by Powell and by Copeland.
In regard to temperament, it is undoubted that the disease invades nervous and hypochondriacal subjects oftener than others, but all temperaments are liable in the presence of those enervative influences that degrade physical health and impair nerve-power. All of my patients belonged to the nervous type. Whitehead says that those of a phlegmatic temperament, not easily excited into action, or persons deficient in elasticity of fibre, compose all but a very small percentage of the sufferers from this {765} complaint, and he had particularly noticed that a large proportion of the women have light flaxen hair, fair complexions, and white skins.
The determinative causes, whatever they may be, occasion perversion of nutrition and innervation of the gastro-intestinal canal, principally, I believe, by their action upon the ganglionic nerves presiding over those functions originating the peculiar exudatory phenomena of this disease. This condition of the nervous system once established, local irritation of any sort may precipitate an attack, and hence the multitudinous influences that have been assigned as exercising a causative agency, as exposure to wet and cold, coarse, bad food, fecal impaction, and the abuse of cathartic medicines, as alleged by Grantham, who asserts that the use of mercury, conjoined with a too frequent use of aperient agents, is the cause of the disease in every case.
Farr considered the irritation of the intestinal canal owing to a parasitic growth of a confervoid type (oscillatoria). This view is supported by no other authority than that of himself and Bennett, as nothing of this sort is recorded as occurring in the discharges of patients of other observers; certainly in mine there was no parasitic development. The presence of it in their cases may then be fairly regarded as accidental, or at least unessential.
Habershon regarded ovarian diseases and painful menstruation in the female, and prostatic diseases in the male, as exciting causes.
SYMPTOMS.--The most characteristic symptoms disclosing the presence of pseudo-membranous enteritis are those arising from derangements of the digestive organs. They are, in the beginning, vague and irregular in occurrence, or so over-veiled by associated disorders of the genito-urinary and nervous systems that their nature and import often escape recognition until, weeks, and even months, of fruitless medication addressed to these secondary phenomena having been expended, the disease assumes such severity and presents such a complex of peculiar symptoms that it no longer eludes identification.
The disease rarely starts as an acute affection; sometimes it is subacute, but in the great majority of cases its course is chronic. Its initiation is marked with symptoms of gastro-intestinal disturbances--irregularity of the bowels, constipation and diarrhoea alternately; and dyspeptic annoyance of one sort or another--capricious appetite, nausea or vomiting, and pyrosis, usually increased by liquid diet. In Dunhill's case there was almost daily vomiting of mucus and pus streaked with blood, and occasionally pure blood. This prominence of gastric derangement supplies an explanation why Todd conferred upon the disease the title of follicular dyspepsia.
There is a sense of discomfort, soreness, or rawness of the abdomen, especially along the line of the colon, and in two of my cases the rectum was tender and raw, which augmented to decided pain in sitting or riding, and the abdominal muscles were tense; a feeling of heat or burning in the bowels often occurs, and almost always more or less lassitude and mental depression. These symptoms aggravate, especially upon indiscretions in diet, exposure to wet, or indeed under any sort of enervative influences, at irregular intervals. Their persistence finally induces grave disorders of nutrition, marked by the blood becoming poor and thin, by sluggish {766} circulation and local congestions in the pelvic and abdominal viscera, and loss of strength and flesh. Yet certain patients seem to retain their flesh for a long time, as I have seen, after suffering several years from the disease. The depression of vital powers is still further manifested in a small, slow, soft pulse and a temperature running below the normal standard. The tongue is usually moist, pale, and flabby, and coated with a pearl-white or yellowish-white coating; sometimes, however, it is raw, red, tender, and fissured, or patchy from exfoliation of the mucous coating. The gums and cheeks are usually pale and bloodless, and often the seat of small roundish painful ulcers, which occasionally invade the palate and throat. Grantham says that ulceration of a phagedænic kind sometimes forms on the tonsils. The complexion usually assumes a muddy or flavescent tint, which during the attack may deepen to a jaundiced hue. At other times it presents a transparent or waxy appearance.
The skin is dry and furfy, sometimes cold and clammy, or, from over-action of the sebaceous glands, greasy. There is a disposition, especially on the chest, neck, and face, to papular eruptions or even phlegmonous or carbuncular inflammation.
The urine is high-colored and loaded with abundant phosphates, which in cooling precipitate as a heavy deposit. The bladder is often irritable, and discharges more or less mucus. According to Grantham, patients occasionally pass urine with evident traces of albumen, and seldom containing a normal quantity of phosphates. On an increase in fever or mental excitement a larger quantity than natural of the lithate of ammonium is found; frequently the mucous membrane of the bladder is found thickened in these cases.
The characteristic symptom, however, of this disease is the periodical formation and discharge of mucous exudates varying in physical appearances and frequency. The discharge may occur daily, with every stool, or at irregular intervals--a week, month, or longer--but usually in from twelve to fifteen days. The recurrence may be precipitated by irregularity in diet, exposure to wet and cold, or by excesses of any sort. The paroxysm is marked by tormina or severe pain, which may resemble that of colic or that of the passage of a biliary calculus, extending down the thighs or to the bladder, in the latter case sometimes causing retention, requiring the use of the catheter. The pain is usually referred to some part of the large intestine. In certain cases the paroxysm is announced by chills radiating from some point in the abdomen or even from other parts of the body.
After the paroxysm has endured two, three, or more days--usually a week--membranous exudates, either with a spontaneous or with an artificial movement of the bowels, are voided; after which there is a gradual assuagement of the local and general symptoms, but the patient experiences a sense of exhaustion or lassitude, and the tenderness of the abdomen and the irregularity of the bowels usually persist.
During the attack there is anorexia, but in the intervals the appetite remains fairly good, and the alvine discharges may assume quite a natural condition.
In the course of the disease there is more or less disturbance in the functions of the nervous system. During the paroxysm, when the {767} sufferings are severe, the cast of symptoms running through the case is of a decidedly hypochondriacal type. At times, with the expulsion of the exudates and succeeding respite from suffering, there often occurs a mental rebound which lifts the patient from the slough of despair to the most hopeful anticipations of future health and happiness. In one of my cases this transition was remarkable. This hysterical type is common enough, and the irritability of the nervous system is still further manifested in the occurrence of irregular contractions of various groups of the voluntary muscles, as shown in hysterical tetanus, general convulsions, or chorea in children, or by paralyses of motion.
Copeland reports a case of a lady in whom this disease was complicated with the severest symptoms of hysteria, occasionally amounting to catalepsy. The paroxysms of pain recurred at intervals between four and six weeks, followed or attended by the discharge of large quantities of false membrane in pieces, and sometimes in perfect tubes. The menstrual flow was painful and irregular, accompanied with shreds of false membrane--not, however, contemporaneous with those of the intestine. The sensory nerves are often deranged, for in some cases there is paræsthesia--anæsthesia or hyperæsthesia--in limited areas of the skin. There is more or less headache, neuralgic pains in this or that nerve, or in several at the same time.
The special senses do not escape; they manifest various forms of functional derangement. In one of my cases there were constant buzzing in the ears and perversion of the sense of smell, and in another the vision was thought impaired and the services of an oculist sought.
The uterine functions are always involved in greater or less degree. The menstruation is difficult and painful, and occasionally accompanied with membranous discharges. In one of my cases there was a uterine exudate, though the menopause had occurred several years before. Leucorrhoea and cervical inflammation are common.
PATHOLOGY.--Despite the fact that the disease in question, without being very frequent, is far from rare, little light has been shed upon its pathology. Indeed, even its individuality as an independent and distinct affection has been contested, although it is marked by a complex of symptoms as peculiar and characteristic as those of any other disease in the nosology.
There are those who maintain that the disease consists essentially in an inflammatory condition of the intestinal mucous membrane, either of the ordinary or of some specific type, croupous or diphtheritic. Copeland says the formation of the membranes depends upon a latent and prolonged state of inflammation extending along a very large portion, sometimes the greater part, of the intestinal canal, as is evinced by the quantity thrown off. Valleix dismisses the subject summarily with the delivery of the oracular judgment that the greater number of cases of this disease are dysenteric, and the remainder diphtheritic. Habershon is in full accord with this view, having, as he says, seen these membranous exudates "follow severe disease of the intestines of a dysenteric character, and sometimes associated with a state of chronic congestion of the liver, and often perpetuated by the presence of hemorrhoids, polypoid {768} growths, etc." Wilks and Clark, after a full examination of the enteric exudates submitted to them, concluded that they are true casts of the large intestines produced by chronic inflammatory action of the mucous membrane and subsequent exudation. Conjectures have been ventured as to the exact anatomical structure in which the process occurs. Thus, Todd says that the proximate cause of the disease is dependent upon a morbid condition of the intestinal mucous follicles. Golding-Bird holds similar language. He says: "It is probable that the follicles are the principal seat of the disease, for we know that they sometimes secrete a dense mucus differing little in physical qualities from coagulated albumen or even fibrin." Livedey attributed the process to a morbid secretion into the mucous crypts.
Among those believing in its croupous nature was Powell, who assumed the character of the inflammation to be specific, and the exudate of the same nature and formed in the same manner as that of ordinary croup. This was the view entertained by Cruveilhier and Trousseau and other French authors. Good was misled in a similar manner, as shown by his statement that the exudation bears a striking resemblance to the fibrous exudation thrown forth from the trachea in croup. He says, however, that it is discharged in longer, firmer, and more compact tubes. Serres, in a dissertation upon pseudo-membranous colitis, confounds the exudate with that of thrush, muguet, and infective dysentery. Laboulbène, a later writer, also remarks that there are found in many treatises and in periodical literature a great number of occurrences of false membranes in the dejecta. Most of these cases are referable to dysentery, to muguet, hydatids, etc., but there remain a certain number which are owing to different inflammatory and non-diphtheritic affections of the digestive tube.
Whitehead, in summing up his conclusions respecting the nature of the disease, compares it with dermic inflammation. He says: "The mucous membrane (intestinal), like the skin (and is not the one looked upon as an inversion of the other?), is prone under certain conditions in certain constitutions to develop products unnatural to its functions. It is not natural for the skin to produce eczema, neither is it natural for mucous surfaces to produce mucus in a concrete form; that the proximate cause of the symptoms referable to this disease is the hypersecretion and accumulation of mucus on the free surface of mucous membranes; such accumulations sheathe and prevent the healthy performance of the functions natural to the part, and thus induce immediate and remote results, the effect of such suppressed functions; that this hypersecretion indicates a want of balance between nerve-force and germinal matter, and that the nerve-force is perverted by irritation."
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