A system of practical medicine. By American authors. Vol. 3

by Unknown

In any case, then, where there is great venous congestion, marked venous bleeding, and little time, the patient being on the point of suffocation, the surgeon should carefully but boldly proceed and complete his operation in spite of the hemorrhage, opening the trachea and introducing the canula even though the entire field of his operation be obscured by blood. The tracheal opening once made under such circumstances, the patient, if the blood which enters the windpipe be not coughed up again, may be turned upon his face, so that the blood will gravitate toward the tracheal opening and the lips of the latter compressed about the rigid tube; or the blood may be aspirated from the trachea by means of the suction-syringe through an elastic catheter in the wound or the tracheotomy-tube by the operator's mouth, according to the urgency of the case. These measures answer for the slighter cases, but where the patient has suffered from urgent impending suffocation before the opening of the trachea, the entrance of the blood and its suction downward by the first inspiration may make it complete, and the danger is great. Still, the choice lies between the two evils, and the advice given above holds good. To the treatment there recommended will now have probably to be added artificial respiration and faradization. Comfort in any case may be taken in the fact that the re-establishment of respiration through the tracheotomy wound quickly relieves the pulmonary capillaries and the right heart of their distension, the venous circulation resumes its natural course, and the venous bleeding, perhaps alarmingly free, ceases almost immediately or is readily checked by pressure.

Where time is afforded and despatch in the operation is not a necessity, the trachea should not be opened until all hemorrhage has ceased. This, as a rule, is readily controlled by the usual measures, and in a large percentage of operations is not excessive. A direct fatal hemorrhage is very rare; likewise an arterial hemorrhage of any extent, especially if the possible anomalous position of certain arteries, such as the thyroidea ima, be borne in mind and care in making the incision exercised. Nothing but gross carelessness on the part of the surgeon and entire loss of presence of mind can account for the opening of the carotid or innominate arteries, as has been done. During the performance of the low operation of tracheotomy the finger of the operator must more or less frequently be pressed into the lower angle of the wound, and his anatomical sense constantly on the alert.

The entrance of air into a vein during the operation is a possible accident, especially when it is much enlarged and imbedded in dense tissue, as sometimes occurs in malignant disease of the throat or when large tumors of the parts exist. Should such an unfortunate complication occur, the proper treatment, according to Erichsen, should be compression of the wounded vein with the finger and its immediate ligation if possible; compression of the axillary and femoral arteries and a recumbent position for the patient to favor cerebral circulation; and, lastly, artificial respiration.

At the moment of opening the windpipe two conditions may suddenly supervene, both of which need, as may usually be easily done, differentiation from the asphyxia produced by the entrance of blood into the trachea. The first of these is the apnoea which not unfrequently arises in children suffering from urgent dyspnoea the moment that a free opening is made and the air-stream rushes unimpeded into the lungs. The condition lasts but a moment or two, and need excite no alarm. The second is based upon the fact that the operation itself not seldom excites an alarming asphyxia, probably by provoking laryngeal spasm. The introduction of the tube serves to promptly relieve it.

Finally, I may refer to those rare but unfortunate and unpreventable cases where the introduction of a tracheotomy-tube after a carefully conducted operation fails to give relief. Such instances are reported by several authors, and depend upon the existence of some unascertained pathological lesion, such as the presence of a stricture of the trachea below the site of the operation, compression of this tube from without or a tumor within, stricture of the primary bronchi, or some similar condition. A careful preliminary examination and study of the case will in the majority of instances do much to fix the indications for the operation and perhaps account for the surgeon's failure.

The operation itself having been practically completed with the introduction of the canula, the after-treatment of the case now becomes the important consideration. This naturally varies in accordance with the accident or disease which has rendered the opening of the trachea necessary. In the instance of a foreign body lodged in either larynx or trachea the tube may at once be removed as soon as the former is removed or expelled. Indeed, the introduction of the tube is often unnecessary, as the offending article flies out through the wound as soon as the trachea is opened. The only contraindication would be to this rule when the foreign body is of a sharp and irritating character, and has been impacted in the larynx, especially of a child, and consequent inflammation and swelling of the parts may confidently be looked for. Should the operation have been called for on account of laryngeal or tracheal obstruction due to syphilis, both constitutional and local treatment are indicated, the latter varying with the special conditions presented, and being fully described in the section of this work treating of that subject. The patient not infrequently is obliged to wear the tracheal tube permanently. In croup and diphtheria the first efforts of the surgeon after introduction of the tube should be directed toward the removal of such shreds of the membrane as present through the tube or may be reached by forceps introduced through it into the air-passage. Large quantities may thus often be gotten away, to the manifest relief of the patient. A pseudo-membrane covering the vocal cords and causing glottic stenosis has thus also more than once been removed through the wound. A feather carefully passed through the tube into the trachea, by exciting cough and through its mechanical effects, is of assistance in promoting the expulsion of membrane lodged in the trachea below the wound. The use of an elastic catheter and aspirating syringe for the same purpose is advised by Roux and Hueter. In any case, constitutional treatment as well is indicated, and other measures—viz. the inhalation of steam, direct local applications, and the like—such as may meet the views of the particular operator.

Granted that the operation has been performed to meet the indication in cases of sudden and urgent dyspnoea arising from the passage of blood into the trachea or the accumulation of serous fluids in the lower air-passages, as well as in cases of dangerous intoxication from the effects of poisonous gases and narcotics, aspiration of the trachea in the former instances, followed by artificial respiration in all, and perhaps the catheterization of the trachea in the latter, as advised by several recent writers, will tax the surgeon's energies as the primary consideration after his operation. The catheter may be first used for the purpose of aspiration in the former cases, if necessary, then for the injection of air, it here taking the place of the natural upper air-passages.

In cases of acute laryngeal oedema, certain chronic inflammatory processes, neoplasms in the larynx or trachea, and injuries or wounds of the air-passages, the proper treatment, aside from that of the necessary tracheotomy, will suggest itself on ordinary surgical principles, or is elsewhere specially treated of in this work in connection with the subjects themselves.

Aside from these special indications for after-treatment, which must be met as they arise, there are certain general rules for the management of any case after the tracheotomy-tube has once been inserted: they relate mainly to the care of the patient, the dressing of the wound, and the care of the canula.

A variable period of intense and exhausting suffering from dyspnoea having probably preceded the operation, the sooner the patient is allowed to seek refreshing sleep the better; and this may be allowed if there be no danger of hemorrhage. Nourishment of a fluid character and stimulants, if necessary, are to be allowed in quantities and at times dictated by good judgment. The patient's first attempts at swallowing must be watched and directed, as the fluids frequently pass in part for a short time into the larynx, and may appear at the tracheal wound. If the condition persist, it may be, no other apparent cause existing, because the tracheal tube is too long and presses on the posterior wall of the trachea, thus interfering with deglutition. For the first day or two at least a competent nurse must be in attendance, and the care of the tube entrusted, after explicit directions, to her. For the first twenty-four hours the secretions usually need to be constantly cleared from the mouth of the inner tube as they are coughed up by the patient, and the tube itself occasionally removed and thoroughly cleaned in carbolized water (or water to which a little borax or potash has been added) by means of a bristle brush, such as is used for cleaning pipes. As the case progresses, the secretions are not as profuse or annoying, and the patient learns to assist himself, in caring for his tube and to remove and replace the inner one. Attempts at using the voice are to be abstained from, and a slate or pencil and paper used until, if the case progress favorably, the third day, when he may be shown how to produce it by closing the outer fenestrated tube (the inner being removed) with the finger. The outer tube does not require usually to be removed, except in diphtheria, for cleansing until the third or the fourth day, prior to this it being done by means of a feather. The removal of the tube should always be done by the surgeon himself, and the occasional danger of its difficult reintroduction, caused by the swelling of the parts, not forgotten. At the same date, the wound sutures may be cut and removed. After its first removal the outer tube is taken out, cleansed, and replaced at each daily dressing, which consists in the washing of the wound with carbolized solutions, the application of adhesive strips, if necessary, across it after the sutures have been removed, and the insertion between the neck-plate or collar of the tracheotomy-tube and the skin, upon which it presses, of a layer of sheet lint covered by a little simple cerate or like dressing. The tapes attached to the canula for fastening it about the neck need changing, and care must be taken to regulate each day their degree of tension about the neck in proportion to the amount of inflammatory swelling attendant upon the wound through the soft parts overlying the trachea.