The cause of this albuminuria of puberty is according to von Leube in part disordered hæmatopoiesis, in part a slight degree of cardiac insufficiency with a tendency to stasis. At the time when the processes of development and the growth of the body in height are most active, there is not a corresponding increase in the energy of hæmatopoiesis, and the heart also fails to keep pace with the growth of the body and to meet the demands thus made upon it by vigorous growth and increased energy. In general the capacity of the heart in such individuals is indeed sufficient to maintain the circulation through the kidneys; but as soon as the functional activity of the heart is more strongly taxed and the energy of the circulation consequently declines, albuminuria occurs—and occurs all the more readily in consequence of the fact that, the hæmoglobin-richness of the blood having been lowered by the customary anæmia, the epithelium of the renal glomeruli is badly nourished and functionally inadequate.

When the period of the menarche is safely passed, when the menses recur with regularity, and the chlorotic manifestations disappear, when the process of hæmatopoiesis has improved in quality, and the growth of the body is completed—when, in short, the functional equilibrium of all the vital processes becomes re-established, the albuminuria of puberty ceases. It seems, however, that those who have suffered in this way are predisposed to a return of the albuminuria at the climacteric period, when the metabolic balance is once more disturbed.

Cardiac Disorders.

The commonest cardiac disorder at this period of life is nervous palpitation, occurring in young girls who are in other respects in good health, being free from anæmia and from any discoverable disease of the heart or vessels. That this disorder is dependent on the sexual processes is indicated by the fact that it first manifests itself in a stormy manner some time, weeks it may be or months, before the first appearance of menstruation; recurring at irregular intervals, the attacks continue till after the first menstruation, and cease soon after the regular return of the period. Objectively, the palpitation of the heart manifests itself by an increase in the frequency and strength of the cardiac impulse, and increased frequency and tension of the pulse; in a few cases, however, it is perceived subjectively only by the patient, as a distressing sensation of excessively frequent and powerful cardiac action. In the former group of cases, the enhanced activity of the heart is perceptible, not only by auscultation, by which we usually find the heart-sounds quite pure, but also by inspection, which shows us the violent agitation of the thoracic wall and increased pulsation of the carotids. On percussion, no change is found in the area of cardiac dulness. The frequency of the pulse is increased, usually reaching 120 to 140 beats per minute; it is full, and may be intermittent or irregular. In those cases in which the palpitation of the heart is a purely subjective sensation, we find no increase either in the frequency or in the strength of the pulse, which may indeed be less frequent than normal. With the palpitation is associated a sensation of strong pulsation in the great vessels of the neck, and often there is pain on the left side of the lower part of the chest, with a sensation of shortness of breath, respiratory distress, precordial pain, and a feeling of pressure upon the chest. Respiration is shallow, and abnormally frequent. The attacks of palpitation recur daily in some patients, in others at intervals of several days; they may occur entirely without exciting cause, or with a cause so trifling that it would not in a normal subject have produced any nervous excitement; the duration of the attacks varies from a few minutes to several hours, and they may occur either by day or by night; in the intervals between the attacks the functions of the heart and the arteries are conducted in a normal manner. The pulse-curves I have obtained during the attacks of palpitation, in those cases in which the manifestations were objective as well as subjective, exhibit a high pulse-wave, the upstroke being rapid and steep, the downstroke also sudden and steep, the predicrotic elevation but little marked, the dicrotic elevation often very distinct.

Less frequent than such attacks of palpitation recurring at irregular intervals are paroxysmal attacks of tachycardia, in which the frequency of the heart and pulse is increased to an enormous extent. This disorder manifests itself a little time before the first appearance of menstruation, thenceforward recurring regularly every three or four weeks, accompanying menstruation, or occurring at the proper menstrual period if menstruation is in abeyance; the attacks last several days. This trouble also disappears a few months after the establishment of menstruation.

Associated with these cardiac troubles are, not constantly indeed, but in the majority of cases, disturbances of the digestive organs.

From the heart-troubles already described, another group of cases must be distinguished, which are also observed at the time of the menarche. They occur in girls in whom the first appearance of menstruation is strikingly delayed, not having yet begun at the ages of 18, 19, or 20 years, or in whom considerable irregularities have occurred in connection with the commencement of menstruation. In such girls, in whom menstruation has appeared late and been irregular, or who are perhaps entirely amenorrhoeic, cardiac troubles may be so pronounced that the physician may be led to suspect the presence of organic disease of the heart. The most prominent symptom is frequent and violent palpitation, with strong pulsation in the carotids, respiratory distress, and feeling of anxiety, on continued exertion or even on very slight occasion. On percussion, the heart is not found to be enlarged; on auscultation, the heart-sounds are found to be very loud, often with a systolic murmur in the mitral region, whilst over the lower end of the internal jugular vein, the humming-top murmur (bruit de diable) is audible. The pulse is increased in frequency, at times arhythmical, and easily compressible. The sphygmographic tracing usually shows a subdicrotic or dicrotic character. The upstroke is not high; the downstroke descends low, almost to the lowest level of the curve, before the enlarged dicrotic elevation begins. The skin is always strikingly pale, pale also are the visible mucous surfaces, the hæmoglobin-richness and the corpuscular richness of the blood are considerably diminished, a feeling of fatigue and various other nervous manifestations are constantly present—in short, in all cases we have to do with the well-known chlorotic disposition, sometimes in association with the manifestations of the anæmic form of lipomatosis universalis. In several such cases, skin affections were also present. Some suffered from acne vulgaris of the face with the usual comedones; others perspired profusely from the palms of the hands and the soles of the feet; others exhibited a bluish coloration of the nose and the ears.

There is yet a third form of heart trouble, much rarer indeed than the forms already described, from which young girls sometimes suffer at the time of the menarche. It occurs in girls who just before the first appearance of menstruation have grown very rapidly, “shooting up to a great height.” They are not anæmic, nor do they appear “nervous;” but they are extremely thin, and they have grown enormously in height during the previous year. These individuals also, who in the previous course of their life have been free from heart trouble, now complain of cardiac distress. As in the cases previously described, they complain of severe palpitation, a feeling of fulness in the chest, shortness of breath on exertion, etc.; but the results of the objective examination are very different. The cardiac dulness is increased in area, especially in vertical extent, the apex-beat may be normal in position or displaced outwards, the impulse is always heaving, abnormally powerful and resistant, the heart-sounds, especially those of the left ventricle, are louder than usual, the aortic second sound accentuated, sometimes ringing, the carotids pulsate visibly. The radial pulse, the tension of which is abnormally high, can be compressed by the finger only with difficulty; sometimes it is jerky in character. The sphygmographic tracing shows a rapid and steep upstroke; in the downstroke, the predicrotic elevation is much larger than normal and also nearer the summit of the curve. Thus we see that all the signs of cardiac hypertrophy are present, hypertrophy, that is to say, of the left ventricle.

The cases of this nature that have come under my observation have not been in girls of the working classes, but among the well-to-do. We cannot therefore regard them as due to overstrain of the heart in consequence of excessive bodily exertions, comparable to the cases met with in young recruits after long marches and violent exercise. We must rather assume that the development of the female genital organs has evoked a storm in the cardio-vascular system, more especially that in some way an increased resistance has been offered to the work of the heart, and that thus the hypertrophy has been brought about; though we may suppose that other unfavorable influences have also been in operation. Such an influence, in these cases, is the rapid growth of the body, which makes enhanced demands on the work of the heart; another is furnished by the almost universally worn unhygienic article of clothing, the cuirass-like corset, which offers a rigid hindrance to the rapid growth of the female body, to the development of the breasts, the thorax, and the upper abdominal organs, and which fails to accommodate itself to the changing conditions of growth, so that much extra work is thrown upon the heart. In such young girls we have very frequently found tight stays, which were worn unchanged without regard to the growth of the body in length, and which, by pressure on the epigastric region, elevation of the diaphragm, and limitation of the respiratory movements of the thorax, actually offered such considerable resistances to the driving power of the heart, as ultimately to lead to hypertrophy of the cardiac muscle.

Summing up our observations, we find that at the time of the menarche cardiac disorders occur in young girls which may be arranged in three groups of cases: