A system of practical medicine. By American authors. Vol. 4

by Unknown

SYMPTOMATOLOGY.—The symptoms vary according to the extent of the dilatation, the portion of the urethra involved, and the condition of the mucous membrane. When the whole urethra is dilated the only symptom present may be frequent urination. When there is inflammation or prolapsus of the mucous membrane, then pain will be caused by passing water, and the desire to do so will be more urgent and frequent. The patient may also be annoyed by a slight loss of control of the water, under the pressure of lifting heavy weights, coughing, or the like.

Dilatation of the lower third of the urethra does not cause any derangement of function, unless accompanied with inflammation or ulceration; then there will be frequent urination possibly, and painful urination certainly. The symptoms in this form of dilatation are less marked than in the other varieties.

When the trouble is located in the upper third of the urethra, the symptoms are sometimes very distressing. In addition to the frequent—it may be constant—desire to pass water, the patient is tormented with partial incontinence. Coughing, laughing, sneezing, stooping to lift anything, a jar on stepping from the curbstone in crossing the street, causes an escape of urine. This distresses the patient very greatly. From the constant wetting of the external parts they become inflamed, unless very great care is taken to keep them dry and clean. In some of these cases the mortification of mind is sometimes more distressing than the physical suffering.

The symptoms occuring in dilatation of the middle portion of the urethra are the same as those already given, with the addition of a slight mechanical obstruction which causes difficult urination; that is, more voluntary effort is necessary on the part of the patient to empty the bladder. The forcing, straining efforts made by some of these patients while urinating are even greater than the mechanical obstruction appears to account for. This may be due to the accumulation of urine in the urethra, which excites extra reflex action in the bladder and urethra out of proportion to the obstruction. This is the only way that we can account for the difficult urination and muscular hypertrophy found in those cases in which there is no great obstruction from stricture.

The constitutional symptoms arising from these urethral troubles are the same as those produced by urethritis, and are not peculiar to this class of affections. In fact, the symptoms here given may all be produced by other pathological conditions, and consequently cannot alone guide to a correct diagnosis. The true character of the trouble can only be discovered by physical exploration.

DIAGNOSIS.—A digital examination by the vagina will detect the increased space occupied by the urethra. The canal encroaches upon the anterior vaginal wall, and feels like a ridge extending from the meatus to the neck of the bladder. This elevation or thickening of the urethra is elastic and compressible in recent cases; in those of long standing the tissues are firm to the touch, but still the canal is compressible. The extent of the dilatation, if general or located in the lower parts, can be measured by the size of the sound that can be easily passed. If at the middle or upper portions, an ordinary female catheter or sound may be used to explore it. By introducing that instrument and pressing it first against the anterior wall and then upon the posterior, the distance between the two can be approximately made out. While the catheter or sound is in the urethra the finger should be introduced into the vagina to ascertain the thickness of the urethral wall. This will differentiate between dilatation and hypertrophy.

When the meatus is dilated and the mucous membrane and enlarged vessels are prolapsed, care is necessary to distinguish that condition from urethral neoplasm. This can be done by observing that in prolapsus the opening is situated either at the upper side or in the centre of the protruding mass, whereas in abnormal growths of the urethra the meatus surrounds the tumor or its pedicle. More than that, by making pressure the distended vessels can be reduced in size and the prolapsed membrane pushed up into the canal. This cannot usually be accomplished with tumors.

PROGNOSIS.—There is no natural tendency to recovery in these affections. If left alone they generally get worse. Recovery under treatment depends upon the location of the dilatation and the duration of the trouble. The conditions upon which an unfavorable prognosis is to be based are—bladder complications, inflammation or ulceration near the neck of the bladder, great varicosity of the veins, and fatty degeneration of the muscular tissue. In the absence of all these complications a complete recovery may be expected. In all cases great relief can be secured by treatment and the patient guarded from getting worse.

TREATMENT.—In the management of all forms of urethral dilatation attention should be given to any inflammation of the mucous membrane that may exist, employing the usual treatment. When there is a relaxed and prolapsed condition of the mucous membrane, astringents should be used. Tannic acid or alum will answer well. When these fail, the redundant membrane should be retrenched, either by touching it with the thermo-cautery or excising a portion with the scissors. In employing the cautery for this purpose the long pointed tip of the instrument should be used, and, having protected one side of the urethra with the speculum, cauterize a narrow strip of the membrane parallel to the axis of the canal. Two or more of these cauterizations may be made at points equidistant on the circumference of the urethra. By operating in this way pieces of normal membrane are left between the portions cauterized, which prevents stricture from occurring after healing—a misfortune which is sure to follow if the mucous membrane is destroyed by cauterization all around.