PRELIMINARY SYMPTOMS.—The symptoms which accompany death of the embryo and precede the expulsion of the ovum develop with the growth of the latter and its encroachment upon the cervix; although they vary as strikingly as do the symptoms of pregnancy, yet we may say that the larger the ovum, the greater the foetal and placental circulation, the more marked must be the effect of their cessation; the larger the uterus and ovum, the more distinct this feeling of fulness, of pelvic dragging, which accompanies the descent of the gravid organ previous to expulsion of the ovum. The larger the ovum, the more distinct the pains which accompany beginning separation, the more the encroachment upon the cervix, the greater the dilatation which gives rise to the earlier symptoms. These symptoms, however, vary so greatly, and are so often altogether wanting, that they are hardly to be considered, especially during the period in which abortions are by far the most common, in the third and fourth month; and as, in all but traumatic and criminal abortions, the disappearance of such symptoms of pregnancy as have existed is indicative of coming abortion, the death of embryo and ovum often precedes expulsion for a considerable period of time, and the symptoms of pregnancy consequently cease. Symptoms of pelvic congestion, bearing-down pains, pressure upon rectum and bladder, are among those frequently preceding abortion. At times we see a rigor, feverishness, rapid pulse, nervous disturbances, lack of appetite, anæmia, fulness of the head, also palpitation, cold extremities, heavy, uneasy feeling at the pubes and coccyx, lumbar pains, and vesical tenesmus—symptoms which are all unusual, with the exception of the latter. The descent of the enlarged and congested uterus in the pelvis, which always precedes the expulsion of any body from its cavity, frequently causes dragging pains in the pelvis, a fulness, heaviness with pressure upon the bladder and rectum, and an uneasiness at the pubes and coccyx or lumbar and vesical tenesmus. Later, the death of the ovum and foetus will cause more striking symptoms; the cessation of pregnancy will be more marked in mammary changes, but reliable symptoms are rare at all times, and usually wanting in the earlier months.
SYMPTOMS OF ABORTION.—Early abortion is frequently ignored, the symptoms greatly resembling those of profuse and painful menstruation. The course of abortion is inaugurated by hemorrhage, occasionally ceasing: sometimes there is very little pain: again it is quite severe; but the period of expulsion is well characterized; when completed the pain ceases, and with it the hemorrhage. Often the ovum is passed without the knowledge of the mother, even when accompanied by pain, as it is at this time more like that of a dysmenorrhoea.
Abortion in the Third and Fourth Month.—Spontaneous, Non-criminal Abortion.—At this period the ovum usually passes en masse; occasionally, and more often as the fifth month is approached, the membranes are ruptured in the course of its expulsion.
Normal Course.—We have already delineated the normal course of abortion at this period. The death of the embryo has usually preceded, often for weeks, and is characterized by the feeling of pelvic congestion, gastric and vesical irritation, weariness, weakness, and increase of uterine and vaginal secretion; the membranes have developed more or less; expulsion is inaugurated by hemorrhage. If the cause be more violent, the flow of blood is free. Usually there is but a slight oozing, which ceases at times, but gradually increases; the suffering which accompanies uterine contraction is present. Separation of the decidua and dilatation of the cervix are indicated by pain, which is intensified in case of uterine disease, so often present as the cause of abortion: the ovum is expelled as a pyriform mass, its apex imbedded in clotted blood, the inverted decidua adherent to its larger upper pole. If hemorrhage has taken place in the decidua, or the abortion be due to disease of this membrane, it is the most prominent feature and envelops the expelled ovum like a rigid mantle. In traumatic abortion it usually follows; ordinarily the membrane in part or in shreds is expelled with or very soon after the ovum.
Traumatic and Criminal Abortion.—Traumatic, especially criminal, instrumental, abortion varies in its symptoms, so well characterized by Van de Warker, from the spontaneous occurrence. The latter is inaugurated by hemorrhage; constitutional symptoms are wanting, and if they occur usually follow upon injudicious interference. In the former constitutional disturbances are present from the first; so also pains with inflammatory symptoms, mostly in the hypogastric region, abdominal tenderness: the pains of dilatation may even precede hemorrhage, whilst in spontaneous abortion they follow, often after days. The pulse is accelerated from 100 to 120 as a result of the primary insult; tenderness of the sensitive and congested uterus and cervix is rarely wanting; it is, in fact, characterized by Van de Warker as the one almost invariable symptom; vaginal hyperæsthesia, heat, and tenderness of the os are natural results. We have no history of previous accidental or spontaneous abortion: preliminary symptoms are wanting; the occurrence, on the contrary, is inaugurated by violence and shock; constitutional disturbance and hemorrhage follow. The consequences also are liable to be more severe, in accordance with the insults offered.
Recurring Abortion.—Morbid conditions, which interfere with the development of the ovum and lead to abortion, tend greatly to produce similar results if conception again takes place; hence we not infrequently find the repeated occurrence of abortion in a patient once afflicted; and this was formerly looked upon as a habit and known as habitual abortion—a term which must yield to the more correct repeated or recurring abortion, as no such habit exists: it is the continuance of the same cause which brings about a recurrence of the accident in repeated pregnancies. The cause being the same, the results are similar: the abortion will recur at about the same period if conception again take place; if due to a disease of the uterine mucosa, an early interruption is to be expected. The death of the foetus is usually the indirect cause of the abortion, and always precedes it: in these cases, in most instances, it is due to syphilis; at times to other cachectic conditions of the mother or an affection of the uterus or its mucosa. The development of the ovum continues for some time until abortion takes place, and this occurs, if due to changes in the mucosa or decidua, in the first months; if the result of anæmia or cachectic conditions of the mother, of syphilis, in the sixth or seventh month, or toward term. The death of the embryo is followed by retrograde metamorphosis, thrombosis of placental or uterine vessels, and expulsion from one to three weeks later.5
5 Geonbert, Thèse de Paris. 1878.
Plethora as well as anæmia may cause this occurrence; thus Campbell relates a case of seventeen successive abortions occurring in an extremely plethoric person, who was finally enabled to bear a child to term by repeated venesections made monthly; and others record cases of a similar nature: lack of nutrition, anæmic conditions, brought about a remarkable increase in the number of abortions during the siege of Paris and in the succeeding year of want. Chronic endometritis with cystic formations has been repeatedly recognized as leading to recurring abortion; so also laceration of the cervix in case conception does take place. The continuation of the same cause should lead to its recognition, as in most cases it is amenable to treatment; syphilis, inflammation of the endometrium, and laceration of the cervix, among the most frequent causes of such repetition, are the very diseases most thoroughly under our control, so that in the present advanced stage of our knowledge we should no longer hear of such a condition as recurring abortion. Ruge of Berlin considers syphilis as the cause of death of the foetus in 83 per cent. of such cases.
VARIATIONS.—A cessation of the symptoms not infrequently occurs: either with or without treatment the oozing may stop; even if hemorrhage and pains have existed all symptoms may cease. Large clots of blood have been expelled, the patient rests quietly in her bed, and gradually becomes easier; contractions and hemorrhage cease altogether, and she recovers, regains her vigor, and begins to move about. At the time of the following menstrual period the same cycle is repeated, and not until then is the ovum expelled. If the membranes are delicate, these may be ruptured by uterine contraction or by artificial or mechanical interference, and with the collapse of the ovum or the expulsion of its greater mass irritation is lessened and the symptoms subside. Exercise or the congestion and irritation consequent upon the return of the menstrual period will again arouse uterine activity, and the remnants are then expelled, a month or two after the inaugural hemorrhage.
These are conditions which are very frequent when the expulsion is left to nature or the aid of the midwife is sought, but they are with equal frequency produced by unskilful interference. The efforts of the physician are not unfrequently directed to a lessening of the hemorrhage, regardless of the existing conditions: applications are made to the abdomen and ergot is given, both methods of treatment which tend to stimulate uterine contraction; the more powerful circular fibres predominate and contract, the os is closed, the symptoms cease, and the conditions above mentioned are produced. Abortion is prevented for the time being, and sooner or later the patient is astonished by a return, which is, however, accompanied by less hemorrhage and more active labor-pains with a more rapid expulsion. If styptic injections are made into the uterine cavity or pieces of the ovum removed with the uterine dressing-forceps, a similar effect is produced, though the result is a more unfavorable one, as parts of the ovum are removed, and the collapsed membranes and shreds which remain are liable to prolong and aggravate the case, as they do not irritate the uterus and stimulate it to healthy action like the intact ovum.