TREATMENT is successful in proportion to the catarrhal symptoms that exist, and which are to be treated on the general plan laid down for catarrhal inflammation. A great number of these cases call for a tonic plan of treatment, such as iron tonics, cod-liver oil, etc.
Local treatment consists in inflations of the middle ear by the Politzer method. In those cases where a thin, sunken membrane exists care should be observed not to use undue pressure, lest a rupture of the membrane result. In those cases where tinnitus aurium is a prominent factor a few drops of ether placed in the Politzer bag cause a more stimulating effect from the inflation than the use of pure air, and is sometimes of service in lessening this annoyance. It is an important part of the treatment that the general health should be in the most vigorous possible condition.
Acute Purulent Inflammation of the Middle Ear.
The disease proceeds very frequently from some inflammation in the naso-pharyngeal cavity, the mucous membrane of the Eustachian tube furnishing a ready way of communication between the pharynx and middle ear.
The exanthematous diseases furnish a large proportion of these cases. Scarlet fever stands first on the list, as causing the largest number of these cases, and also those of the most serious character. Measles, smallpox, diphtheria, the different forms of fever, such as typhus and typhoid, cerebro-spinal meningitis, pneumonia, bronchitis, etc., are complicated by this form of inflammation, and the ear disease represents simply a continuation of the naso-pharyngeal inflammation which occurs so frequently in the above-mentioned diseases. Another set of causes come under the head of change of temperature, such as exposure to draughts of air and sea-bathing, where the cold water entering the external auditory canal acts directly upon the tympanic membrane. Some few cases occur as the result of injury, such as blows upon the ear or direct injuries to the tympanic membrane.
COURSE.—The same pathological conditions are to be noted here as in the acute catarrhal attack, with the difference that the inflammation goes on to a higher grade—namely, pus-formation. In this form of disease there exists marked hyperæmia and swelling, not only of the superficial but also of the deep-seated tissue, with pus-formation, and generally perforation of the tympanic membrane, with occasional ulceration and destruction of other parts of the middle ear. The neighboring cavities of the antrum and mastoid cells participate more or less, while blood-vessels penetrating the superior wall of the middle ear furnish a ready means of communication between the inflamed middle-ear tissues and the brain-membrane, so that the wonder is not that brain complications result, but that they occur so seldom.
The changes in the tympanic membrane in the first stage are marked hyperæmia and swelling of the tissue, so that it often assumes a uniform red appearance, without a trace of the malleus or cone of light. Pus-formation in the middle ear is quickly followed by bulging of the tympanic membrane, due to increase of middle-ear pressure; and this in the great majority of cases is followed by perforation of the tympanic membrane, due not only to increase of pressure, but also to a destructive ulcerative process in the membrane itself. The latter process is seen in those cases of great destruction of the tympanic membrane that occurs in scarlet fever, where almost entire destruction of the membrane is often found. Perforation may occur at any part of the membrane.
SYMPTOMS AND COURSE.—These are very much the same, up to a certain point, pus-formation, as have been described under the head of Acute Catarrh—namely, the great pain, deafness, tinnitus, headache, tenderness on pressure over the tragus, increase of pain by movement of the jaw, followed often by quick relief by perforation of the membrane and escape of pus through the external auditory canal, with a subsequent subsidence of inflammation and restoration of the tympanic membrane. A moderate attack may run a course of from two to six weeks, and end in entire recovery, or it may end in a chronic suppuration with its sequelæ.
DIAGNOSIS.—It often will be difficult at the outset to know if the case is one of acute catarrh or whether it will advance to a purulent inflammation; but as the disease goes on to pus-development and subsequent drum-perforation, no doubt can exist as to its true character. The perforation can often be seen, and air may be forced through it with a whistling sound by a forcible expiration of the patient. In regard to whether complications exist, such as mastoid or brain involvement, several points can be given as aids in the diagnosis. When mastoid involvement exists, the soft tissues over it become swollen, very tender on pressure, with pain in that part of the bone; also, often swelling of the posterior upper wall of the external auditory canal, a part adjacent to the mastoid process.
In those cases where the inflammation tends toward the cranial cavity, the pain spreads over the entire side of the head, and often becomes marked in the occipital and frontal regions, and is of a peculiar lancinating character. Vertigo is also present, even if the head is in a quiet horizontal position, but greatly increased by movement of the head. The body-temperature in acute purulent inflammation in adults is not altered as a rule, but in children it is raised.