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tumour, (viz. the uterus,) which entirely filled up the whole cavity of the pelvis. The os uteri made the summit of the tumour upon which the bladder rested, and the fundus uteri was turned down towards the os coccygis and anus." (Medical Obs. and Inquiries, vol. iv. 404.)

Causes. This displacement may also occur in the unimpregnated state, either from the fundus being pushed into that position by some morbid growth, or where this effect has been produced by the violent pressure of the abdominal muscles in lifting heavy weights, under circumstances where the uterus has been larger and heavier than usual;* but it is in the early months of pregnancy that it is most likely to happen, because now the fundus is both larger and heavier than before, and, therefore, more liable to be affected by the pressure of the intestines and abdominal muscles, and has not yet attained a sufficient size to prevent its undergoing this displacement in the pelvis: this period is about the third or fourth month, often before it, but never after it. (Burns' Anatomy of the Gravid Uterus, p. 17.)

It has been supposed by many authors, especially Dr. Burns, that distention of the bladder is, in many instances, the immediate cause of retroversion, owing to the intimate connexion which exists between the lower part of the uterus and this organ, inasmuch, "that whenever the bladder rises by distention, the uterus must rise also." In the later editions of his work on the principles of midwifery, he has considerably modified this opinion, and from careful examination of the parts in situ, in the third month, is not disposed to consider the distention of the bladder as the cause, but the effect of retroversion. In every case which has come under our own observation, the bladder has not been distended until the retroversion had taken place, in consequence of which the os and cervix uteri had been tilted up behind the symphysis pubis, and having thus compressed its neck had caused the difficulty in passing water. Whenever any force is applied to the fundus uteri at this period of pregnancy, either from external violence, or the action of the abdominal muscles pressing the intestines and bladder against it, it will be pushed against the rectum, in which case the rectum will be flattened at that part against which the fundus rests; and if any mass of fæculent matter be passing along the intestine, its course will be obstructed at this point, and the rectum quickly become distended with an accumulation of fæces above, by which means the fundus will not only be prevented from rising, but in all probability be forced still lower down. If the force which has originally pushed the fundus backwards be of sufficient degree and duration to carry it past the promontory of the sacrum, the increase of space which it will meet with in the hollow of the sacrum, and the straining efforts which are induced by the displacement itself, contribute powerfully to complete the mischief, and

* We had lately a case of this kind. The patient had been under our care for inflammation of the cervix uteri. There was that general enlargement of the uterus which attends this condition; and, on endeavouring to lift a heavy weight, she was seized with violent pain in the pelvis, great difficulty in passing fæces and urine, and, on examination, the uterus was found retroverted. The bowels were well opened with castor oil, and in a day or two it recovered its natural position.

† Dr. W. Hunter has evidently taken the same view of the case, and invariably considers retention of urine as an effect, not the cause, of this displacement. (Med. Observ. and Ing. vol. iv.)

to bring the fundus so low into the pelvic cavity as at length to turn it nearly upside down.

As soon as the fundus of the uterus is pressed with any degree of force against the posterior parietes of the pelvis, its os and cervix will be directed forwards and upwards against the symphysis pubis, and from the pressure which they exert against the neck of the bladder, the patient either experiences complete retention of urine, or, at any rate, considerable difficulty in passing it; hence, therefore, we find, that where retroversion has come on suddenly, the patient is generally sensible of the pain produced by the displacement, before she has experienced any difficulty in evacuating the bladder.

A modern French author of great experience, (Martin le Jeune, p. 178,) in enumerating the causes of retroversion, appears to take a similar view of the subject, and places retention of urine very far down in his list. "Sudden and violent contractions of the abdominal muscles and diaphragm in attempting to vomit, to evacuate the bowels or bladder, or to lift heavy weights; the throes during an abortion at an early period of pregnancy; strong mental emotions; retention of urine; tumours in the neighbourhood of the fundus, which by their weight or pressure force it backwards towards the sacrum, are the causes which may produce a retroversion of the uterus."

Retroversion may also come on gradually, from "the uterus remaining too long in that situation which is natural to it when unimpregnated, namely, with its fundus inclined backwards. This may depend on various causes; such as too great width of the pelvis, or the pressure of the ileum full of fæces on the fore part of the uterus. In this case the weight of the fundus must gradually produce a retroversion, and she will be sensible of its progress from day to day." (Burns' Anat. of the Gravid Uterus, p. 18.)

It will thus be seen how peculiarly liable the uterus is to retroversion during the early months of pregnancy. At this time, the fundus is not yet free from the weight of the superincumbent coils of intestine; and if from any cause its ascent out of the pelvis be delayed beyond the usual time, its liability to retroversion is still farther increased; for, not only does the size of the fundus press it still farther backward, but any sudden contractions of the abdominal muscles, or external violence, act upon it with increased effect.

The symptoms of this displacement are as follows:-the patient is seized with violent pain, bearing down, and sense of distention about the hollow of the sacrum, with a feeling of dragging and even tearing about the groins, produced by the violent stretching of the broad and round ligaments; the bearing down is sometimes so severe and involuntary as to resemble labour pains, and cases have occurred where it has been mistaken for labour. With all this she finds herself unable to pass fæces or urine, from the pressure of the fundus upon the rectum and of the os uteri upon the neck of the bladder. Upon examination per vaginam, the altered position and form of this canal instantly excite our suspicions: instead of running nearly in a straight direction backwards and somewhat upwards, it now takes a curved direction upwards and forwards behind the symphysis pubis; the hollow of the sacrum is occupied with the globular and

nearly solid mass, (the fundus uteri,) which is evidently behind the vagina, the posterior wall of this canal being felt between it and the finger; behind the symphysis pubis, the vagina is more or less flattened, and its anterior wall put violently upon the stretch, so much so that, according to Richter, the orifice of the urethra is sometimes dragged up above the pubic bones, (Anfangsgründe der Wundarsztneikunst, vol. ii. p. 45:) the os uteri is found high up behind the symphysis pubis, and in most cases can be reached, although with much difficulty; sometimes we shall be able to reach the posterior lip only, which is now the lowest: but "if the retention of urine has been of some duration, it will be impossible to reach the os uteri above the pubic bones with the finger. On examining per rectum, we shall feel the same tumour pressing firmly upon it, and preventing the farther passage of the finger, thus proving that the tumour is situated between the rectum and the vagina; for, in such cases, the bladder forms considerable swelling below it, and prevents the finger from passing up." (Op. cit.)

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"The uterus being situated in the centre of the pelvis, between the rectum and bladder, its retroversion cannot take place without deranging the functions of these organs: the symptoms thus produced come on rapidly when the displacement is sudden, slowly when it is gradual. Their severity is in proportion to the size of the uterus, the degree of retroversion, its duration, and the various circumstances which increase the impaction. of the uterus in the cavity of the pelvis: they also determine the degree of inflammation and gangrene of this organ and the neighbouring parts. (Martin le Jeune, p. 178.) Hence we frequently observe, in the earlier stages of retroversion, before the displacement has become complete, that the patient is able to relieve the bladder to a certain extent, although very imperfectly, and that with some difficulty; a slight dribbling of urine continues to a very advanced stage, when the bladder is enormously distended, and upon the point of bursting: this is not so much the case with the rectum, the passage of fæces being generally completely obstructed at an early period, partly from the pressure of the fundus against it, and partly from the solid nature of its contents. "When such suppressions once begin, they aggravate the evil, not merely by causing pain, but by occasioning a load of accumulated fæces in the abdomen above the uterus, which presses it still lower into the cavity of the pelvis, at the same time. that the distention of the bladder in this state draws up that part of the vagina and cervix uteri with which it is connected, so as to throw the fundus uteri still more directly downwards." (Dr. W. Hunter, Med. Obs. and Inquiries, vol. iv. p. 406.) These conditions of the bladder and rectum, and the retroversion of the uterus, act reciprocally as cause and effect; for the continuance of the distention of the bladder and the descent of the faces from the part of the intestine above the obstruction, must elevate still more the os uteri, and depress to a still greater degree the fundus. The retroversion, on the other hand, increases the affection of the bladder and rectum, from which the principal danger of the disease arises. (Burns' Anat. of the Gravid Uterus.)

The diagnosis of retroversion is, generally speaking, not very difficult, the os uteri tilted up behind the symphysis pubis, and the fundus forced downwards and backwards between the vagina and rectum, are sufficient

ly characteristic of this displacement. We cannot agree with Dr. Dewees that it can easily be mistaken for prolapsus uteri: in cases of sudden prolapsus which has been caused by great violence, there will be, it is true, intense pain in the pelvis, with sensation of forcing and tearing in the direction of the broad and round ligaments; there will also probably, be inability to evacuate the rectum and bladder; but then the examination, per vaginam, will present such a totally different condition of parts as to preclude all possibility of mistake: the vagina merely shortened, neither altered in direction nor form; the os uteri at the lower part of the tumour, which is in the vagina; the mobility of the tumour itself, all conspire to show that the case is one of prolapsus, not retroversion.

We occasionally meet with cases of retroversion where the os uteri, although carried more or less upwards and forwards, is not forced to that extreme height behind the symphysis pubís as is usually observed. Instead of looking towards, or rather above, the symphysis, the os uteri itself looks downwards, the neck or lower part of the body of the uterus being bent upon the fundus like the neck of a retort. If, under such circumstances, we cannot satisfy ourselves as to the existence of pregnancy, we might easily be led to form an erroneous diagnosis, and to conclude that some tumour had forced itself down into the hollow of the sacrum, between the rectum and vagina, and had thus pushed the uterus upwards and forwards, above the brim of the pelvis. An extra-uterine ovum of the ventral species may occupy this situation, but its slow and gradual growth, its greater softness and elasticity, and the slight degree of uterine displacement produced in its early stages, would enable us to ascertain its real character. The same would hold good to a certain extent with an ovarian tumour, although in all probability this would produce more or less displacement of the uterus to one side.

The danger in retroversion of the uterus chiefly arises from the distention or rupture of the bladder, and from the gangrenous inflammation which may then take place, not only in it, but also in the uterus and neighbouring parts. The very displacement itself is sometimes immediately attended by alarming symptoms, such as faintness, vomiting, cold sweats, weak irregular pulse, as seen in cases of inversion or strangulated hernia. In some cases the suffering at first is but trifling, and only increases in proportion to the degree with which the bladder is distended.

Retroversion not reduced may experience a spontaneous termination in two ways, either by abortion being excited, after which the uterus, now diminished in size, returns to its natural situation, or it may go on to increase in this position until a more advanced period of pregnancy, when, if it be not capable of being replaced by the action of the pains, sloughing takes place in the fundus, and the foetus is discharged, either by the rectum or vagina, as in a case of ventral pregnancy.

In the treatment of retroversion of the uterus, our object should be,

We were once misled in a case of this description. The os uteri lay close behind the symphysis pubis, and its opening, as well as so much of the neck as we could feel, looked straight downwards. We were unable to pass the finger sufficiently high to trace the continuity between the neck of the uterus and tumour in the hollow of the sacrum formed by the fundus; and the haggard aged appearance of the woman put all suspicion of pregnancy out of our mind.

first, to remove the accumulated contents of the bladder and rectum, and secondly, to endeavour to restore the uterus to its natural position. The ⚫ relief of the bladder must be our first aim, for here is the greatest source of danger. The elastic catheter should always be used in these cases, and greatly facilitates the operation of drawing off the water. The altered direction of the urethra must be borne in mind; in many cases we must pass the catheter nearly perpendicularly behind the symphysis pubis; by pressing the uterus backwards, we shall diminish its pressure upon the urethra, and thus enable the catheter to pass with great ease.

The catheter should be employed occasionally, and the bowels emptied daily, either by medicines of a mild kind, or by injections: if this plan do not succeed in restoring the fundus, we should then consider the propriety of mechanically replacing it. To aid us in our judgment, we should consider, first, the period of gestation; secondly, the degree of development the uterus has undergone; thirdly, the nature and severity of existing symptoms. The period of gestation ought almost always to influence our conduct in this complaint, and we may lay it down as a general rule, the nearer that period approaches four months, the greater will be the necessity to act promptly in procuring the restoration of the fundus: the reason for this is obvious; every day after this only increases the difficulty of the restoration from the continually augmenting size of the ovum. The degree of development should also be taken into consideration, as some uteri are much more expanded at three months, than others are at four. The extent or severity of symptoms must ever be kept in view; as, for instance, where the suppression of urine is complete and not to be relieved by the catheter, in consequence of the extreme difficulty and impossibility to pass it: here we must not temporize too long, lest the bladder become inflamed, gangrenous, or burst; for the bladder, from its very organization, cannot bear distention beyond a certain degree, or beyond a certain time, without suffering serious mischief." (Dewees, Compend. Syst. of Midwifery, 6th. Ed. § 276.) Our next step should be to relieve the rectum of its contents by emollient enemata; this is not always very practicable, owing to the flattened state of it: hence a glyster pipe of the ordinary sort is too large, and meets with much resistance; in such cases it will be desirable to use a common elastic catheter, or thin elastic tube without an ivory nozzle, which will, therefore, better adapt itself to the form of the bowel. A few doses of a saline laxative should be given to render the contents of the bowels more fluid, and the enemata repeated until a sufficient evacuation has been effected. Where the retroversion is not of long standing, and the patient not far advanced in her pregnancy, these means are generally sufficient; and the uterus, in the course of a few hours, will return to its natural position, either spontaneously or with very slight assistance. Where, however, the uterus is large and firmly impacted, where it has already been displaced more than twenty-four hours, where the suffering from the very beginning has been acute, independently of that produced by the distended bladder, we cannot expect that the spontaneous replacement will follow the mere removal of the ac

* Dr. Burns makes a similar observation. "In most cases the cervix will be found more or less curved; so that the os uteri is not directed so much upwards as it otherwise should be." (Principles of Midwifery, p. 284, 9th edit.)

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