Part 7

Of the Indolent Ulcer.

In this genus, the action is diminished, and, consequently, rendered imperfect and diseased.

Indolent ulcers, like those of the next genus, are divisible into two species: First, that in which both parts of the ulcerative action, namely, the granulating and purulent, are equally diseased, and equally imperfectly performed: Second, that in which one part is more affected than another.

The circumstance of one part of an ulcer being more affected than another, will be more fully noticed in considering the next genus, in which it is of more practical consequence. Ulcers generally belong to this species, before they assume the characters of the second (for they frequently change from one species, or genus, to another; in which case, the treatment must also be changed).

The first species is distinguished by the following symptoms, which appear in greater or less degrees, according to the diminution and imperfection of the action.

The granulations are pale, and imperfectly formed, partaking less of the firmness and organisation of the healthy fleshy granulations in proportion to the affection of the action. They are obtuse, and scarcely at all elevated; and, therefore, the surface loses its doted, or red pointed appearance. The discharge is thin, and of a whitish colour, at the same time that we frequently observe isolated spots of lymph interwoven here and there with the imperfect granulations. Although these granulations are said not to be elevated, yet the surface often exhibits a species of fungus; but the individual granulations are not elevated, or pointed. This fungus never rises higher than the twentieth part of an inch above the level of the surrounding skin, and often appears only at particular parts of the surface. It is pale, and somewhat of a gelatinous appearance. The pain is trifling.

The cause why these granulations rise, even this trifling height, above the level of the skin, is the indolence of the action, which prevents a cuticle from being formed in due time.

In more advanced cases, the whole disk is covered with a thin layer of lymphatic substance, which adheres firmly, and gives the idea of a thin pellicle being thrown over the granulations, which are seen imperfectly and irregularly through it. The discharge is generally thin, like serum, and considerable. The edges are hard and tumefied, sometimes of a light purple colour, at other times white. The surrounding integuments are also hard and thickened, at least in old ulcers, and the veins are generally more or less varicose.

Indolence of the action does not imply that the quantity of a discharge should be lessened, but only that its nature should be changed. In this species, the discharge is much the same in quantity as in a healthy ulcer of the same size, but its perfection is greatly less.

Sometimes the granulating action and the cicatrizing one seems to be confounded, the surface exhibiting a fibrous fleshy appearance. This I have seen most frequently in the calf of the leg; but it may occur in other parts.

These appearances vary in degree from the soft pale surface, and thin whitish purulent discharge, with slightly thickened edges, to the state now described. The pain, when compared to the size of the ulcer, is not considerable.

This genus may occur, in a slight degree, in recent sores, from neglect, &c.; but it is chiefly after ulcers have been of long standing, that they assume these appearances in the greatest degree. They may then be said to have become chronic, or habitual; and, in many instances, it is absolutely impossible to restore the action to its natural state, and produce recovery.

These ulcers, after long continuance, frequently induce a disease in the bones or muscles seated below them, as will afterwards be mentioned.

The second species is distinguished by the paleness and imperfection of the granulations, whilst the discharge is tolerably good; but it never can be equal to that of the healthy ulcer; because, when one part of the action is affected, the other is also more or less affected. This species does not require any more particular observation or remark, because it is to be treated exactly as the first, of which it is often just a slighter degree, or a forerunner; for it is frequently the first change which takes place in a healthy ulcer. When it becomes diseased, it does not continue long; for both parts soon come to suffer in the same proportion; in which case, the ulcer belongs to the first species. For this reason, we never find old ulcers belonging to this species.

Chronic ulcers sometimes induce a disease of the bones, &c. below; but, in this case, they generally are converted into a different genus. They also come naturally, in consequence of the great imperfection of their action, and the consequent want of power, to act beyond the due proportion betwixt action and power; and, therefore, most ulcers of this genus come at last, if neglected, to belong to the next.

The most effectual remedy for these ulcers is pressure. This has been long employed, by means of tight rollers wound round the limb, or by the laced stocking. But, of late, a more effectual method has been proposed, namely, a bandage of adhesive plaster, which applies itself closely to the surface, and produces a state of artificial contact and covering. This has been recommended by Dr. Darwin in the form of a many-tailed bandage, and by Mr. Baynton in the form of strips, wrapped round the limb. The following is the method of applying them: A strip of adhesive plaster, about an inch broad, and so long as to encircle the limb and cross at each end, is to be warmed, and the middle of it applied to that part of the limb which is exactly opposite to the sore; both ends are now to be brought forward, and one of them laid tightly over the under part of the sore (if it be so large as not to be covered with one strip), whilst the other is brought firmly over this from the opposite side, and doubled down upon it. The ends of the strip thus fold over each other at the ulcer. Another strip is then to be applied to the part of the sore contiguous to this which is not yet covered, and so on in succession, until the whole be covered. This is the best way of applying the strips, if the integuments be firm; but, if they be loose and yielding, it will be useful to push forward the loose skin from behind, with the strips, as we bring them forward; and, instead of laying down first one end, and then the other over it, make the two ends cross each other at the same time, and lay them down upon the skin, and not on each other, the under end covering the lower part of the sore, and the upper the part next it. The same strip, therefore, covers two portions of the surface, whereas, in the first way, it covered only one; but, in this case, the strip must be longer, as it must fairly cross the ulcer on each side, and be retained by sticking to the adjacent skin. When the ulcer is deep, the strip will press only on the margins; and, therefore, it will be useful to fill up the surface with a fold of soft lint. A thin cotton roller is now to be wound firmly round the limb, beginning at the extremity, and continuing the bandage to the next joint above the sore.

By this contrivance, we obtain a firm covering to the granulations, and bring a substance in contact with each individual. We then restore, as it were, the natural state of the parts, each granulation having a substance in contact with it; and a slight interstice is left between each, owing to their pointed structure. They become, therefore, similar, in this respect, to the organic particles of internal parts; on which account, healing goes on more quickly, and the organic particles, or granulations, are deposited in greater perfection, and with greater powers of action; for the unusual and morbid condition of exposure and want of contact is now removed. The same circumstances promote cicatrization, when the granulations have risen to a proper height. This is more evidently seen in the cure which is effected of the smaller ulcers, by dusting them with chalk, &c. or dressing them with an ointment made thick with some mild powder, by which a scab, or covering, is formed, which operates clearly independently of pressure. Pressure, applied with this view, ought to be moderate and permanent, and may be used with utility in almost every case of solution of continuity, however healthy the action may be. But, besides being of use in this way, pressure also produces a second set of effects, by mechanically exciting action in the part to which it is applied. Applied to the skin, it increases the cuticular action, and the skin is formed thicker. Applied to a weakened part, it increases the natural action of that part, and strengthens it: This is seen in the instance of debilitated muscles, &c. But, if the pressure be too great, then a morbid increase of action takes place, which even goes the length of inflammation, if the pressure be considerable; and this inflammation is either strong or weak, according as the pressure has operated; for, if many vessels be obstructed, as is commonly the case, then the power of the part is injured, and the action is weak; or, the same happens if pressure be applied in any manner to a weak part, or if the constitution be weak; as, for instance, from previous disease.

Pressure, applied to a part, increases in particular the functions of absorption and deposition. If moderate, these functions are moderately increased, and the structure of the part continues either the same, or it augments in size, as we observe, in the effects of walking, on the skin of the feet; but, if the pressure be greater, then these functions are morbidly increased, the particles are deposited imperfectly formed, and are as quickly taken up. The structure is therefore destroyed, and a vacuity formed. These effects are produced more easily upon diseased than healthy structures; because their powers of acting, and sustaining action, are less. Friction is in this respect similar to pressure.

From these remarks, we may understand the mechanical utility of pressure in the cure of ulcers; for, when in a proper degree, it causes the absorption and destruction of the callous edges, or diseased substance, and likewise makes, if moderate, the diseased granulations be taken up, and more healthy ones be formed. We may likewise perceive, that, if the degree be too great, the action will become of an inflammatory nature, and injury will be done. We are therefore frequently under the necessity of counteracting this hurtful effect; for, the degree of pressure which is requisite for answering the first intention in old sores, or inducing action, in consequence of bringing the granulations or particles into the natural state of being in contact with some body, or covered by it, is often attended with such mechanical irritation, that the one effect would destroy the other, unless we kept the action within due bounds, by applying cold to the part. In healthy ulcers, the pressure necessary to produce its first set of effects, or to accelerate healing, by producing contact, is so trifling, that no counteracting effect takes place by the production of the second set of effects; and, therefore, no cold requires to be applied: But, in old ulcers, the pressure must be greater; and, therefore, cold water must be constantly applied to the bandage over the sore, by means of a sponge. We thus indeed lessen the effects of pressure on the absorbing system, and, therefore, the callus will be longer of being destroyed; but we, on the other hand, prevent the action of the granulations from being rendered morbid.

The degree of pressure necessary for producing this effect is proportioned to the susceptibility of the granulations, or organic particles, for receiving the impression of being in contact. When a part is healthy, the mere circumstance of juxtaposition is sufficient for this purpose; and, in a healthy ulcer, the weight of the body applied, such as powdered chalk, or plaster of Paris, or at least the gentle pressure of a stocking, or easy bandage, is all that is necessary. But, when the action is too low, and the granulations are consequently imperfect, both in their structure, power of acting, and capability of receiving impressions, the contact, in order to operate, must be nearer, and more complete; or, in other words, the pressure must be greater. In these cases, bandages not only act on the surface, but also on the parts below, and, therefore, increase the degree of contact of the newly-formed organic particles, and thus strengthen the part.

The good effects of pressure, applied in a degree proportioned to the effect which we wish to produce, and to the state of the sore, are so universal, that it is unnecessary to give any examples of its success and utility. But, at the same time, it must be observed, that in old ulcers, and even in many of a more recent date, which have been much neglected, no application whatever will produce an uninterrupted cure; for, after some time, it ceases to produce the same effect upon the action. The part seems, by continuance, to be less acted on by the agent; the action is less affected, and slowly returns to its former state of imperfection. It is therefore necessary, either that we from time to time increase the power of our application, or vary our remedies, whenever the process becomes stationary. The latter is generally the most effectual way; and the remedies which we alternate with the effects of pressure, are those of what have been called the stimulating kind; but which of the individuals of this division ought to be employed, cannot always be determined, because one succeeds better in a particular instance than in another. It would, however, be of much importance, to ascertain which in general operated most effectually; because, if we employ one which does no positive good, we sustain positive harm; for the action is allowed to persevere in a retrograde process. I, therefore, paid particular attention to the operation of these applications, in the patients who were under my care in the Glasgow Infirmary.

Heat is found to increase almost every action; and, therefore, in indolent ulcers, it is sometimes of use, especially for a few days after we begin the management of the sore, as it paves the way for the action of other agents, by beginning a change of the action. Poultices are the vehicle by which it is most frequently applied, and answers, in general, better than other forms. Fomentations are much used by many practitioners, who employ decoctions of different kinds of vegetables; but they have no superiority over poultices. Dry heat was used by M. Hevin, who held ignited charcoal near the sore; and it is sometimes of use to repeat this practice betwixt each dressing.

Electricity is of little service; because it cannot be constantly employed; and, therefore, its operation is only temporary.

It is worthy of observation, that although this kind of ulcer may be sometimes completely cured by the use of heat, that yet the action is not so perfect, and consequently the structure and power of the part is weaker, than when stimulating dressings are employed. Exercise, or any other cause, is therefore more apt to injure the part afterwards, and make it again break out into an ulcer.

The red precipitate, mixed with resinous ointment, in the proportion of a drachm of the former to an ounce of the latter, is a very useful dressing; but the ung. hyd. nit. mixed with four times its weight of hog’s lard, forms an ointment which is still more generally useful.

Ten grains of the cuprum ammoniatum, rubbed up with an ounce of basilicon, or simple ointment, is sometimes useful, but cannot be depended on. The same may be said of an ointment composed of an ounce of ung. simplex, and ten drops of the oil of cloves, or of savin.

Cloths dipped in the aqua zinci vitriolati, or the solution of cuprum vitriolatum, diluted with water, so as only to smart moderately, are likewise of service, but not so frequently as weak solutions of the nitrates of silver, zinc, copper, bismuth, and many other metallic salts, such as muriate of mercury, &c.

Solution of common salt, or of nitre, of such a strength as to produce a moderate smarting, are of temporary advantage, but will not continue their effect long. Indeed all solutions of saline substances, whether alkaline or metallic, are most useful when applied only for half an hour at a time, when the sore is dressing.