1. Nervous palpitation and paroxysmal tachycardia in persons in other respects in good health, the affection appearing shortly before the commencement of menstruation, and disappearing soon after the flow is regularly established.
2. Cardiac disorders occurring in young girls suffering from chlorosis, which itself results from the processes of the menarche.
3. Cardiac hypertrophy developing at the time of the menarche, and dependent on the circulatory disturbances associated with that process, its appearance being favored also by rapid growth of the girl and by unsuitable clothing (tight lacing).
With respect to the activity of the heart and the circulation of the blood at the time of the menarche, the little-known observations made by Beneke, on the growth of the heart and arteries in the various stages of development, deserve especial attention. According to this writer, the growth of the heart is slow until the age of fifteen years is attained, but becomes accelerated at the commencement of puberty. During this time of puberty, the blood-pressure attains its highest level, being comparatively low in childhood and later in life. The development at puberty of the female heart is less extensive than that of the male heart, and for this reason throughout adult life the capacity of a woman’s heart is on the average 25 to 30 cubic centimeters (1.5 to 1.8 cubic inches) less than that of a man. In women, also, the great arteries are on the average somewhat smaller than in men. The various arteries do not develop with equal rapidity throughout the period of growth; after puberty the common carotid grows very much more slowly than the common iliac artery, the former vessel being the only large trunk which has already nearly reached its maximum size at puberty.
The comparatively great development which the heart undergoes at the time of puberty is a phenomenon so important alike in its physiological and its pathological relations that it deserves the special designation of the puberal development of the heart; the commencement and the completion of puberty appear beyond question to be to a large extent dependent upon this development of the heart and upon the simultaneous rise in the blood-pressure of the systemic circulation due to the comparative diminution in the calibre of the arteries.
In the literature of this subject of cardiac disorders during the menarche, we find only short annotations on palpitation of the heart in young adolescent girls, and on cardiac manifestations in chlorotic subjects. Further, the statistical fact that valvular lesions of the heart are commoner in women than in men is by many authors explained on the ground that the disturbances of the time of puberty, which certainly occur more frequently and are more severe in the female sex than in the male, play an important part in their causation. Changes also in the vessel, such as cirsoid aneurysm (angioma arteriale racemosum), are supposed to be connected with the sexual processes of this period of life. C. Heine maintains that in consequence of puberty and of the sexual functions that become established at this period, a telangiectases will not infrequently undergo transformation into a cirsoid aneurysm; especially in cases in which menstruation is scanty and irregular, angiectatic tumors may exhibit a vicarious periodic increase.
Krieger describes nervous palpitation and also “cramps of the heart”[[22]] as occurring in girls who have not yet begun to menstruate, in the form of prodromal manifestations; similar attacks may occur also at every menstrual period in girls in whom menstruation is fully established. In most of these cases the pulse is increased in the patients who complain of a sensation of anxiety, and speak of feeling the heart roll, tremble, or flutter, to which is sometimes superadded a sensation of sudden cessation in its activity. Not infrequently there is a blowing adventitious sound, masking or accompanying the heart-sounds; there are also venous murmurs, especially when the heart-trouble is associated with anæmia or chlorosis. Of the cases of pseudo-angina pectoris[[22]] observed by Krieger, the attacks occurred as prodromal manifestations before the first appearance of menstruation in 22 per cent. of the cases, after menstruation was fully established in 78 per cent. of the cases; as regards the relation of the attacks, in cases of the latter group, to the menstrual period, they occurred before the flow in 33 per cent., during the flow in 67 per cent.; menstruation was irregular in 10 per cent. of the cases under observation, in most of the other cases menstruation had been irregular, but was now regular.
Hennig records a case in which he observed as a prodromal symptom before the establishment of menstruation the regular recurrence of congestion of the pelvic organs associated with cardiac disorder.
Diseases of the Nervous System.
The extensive transformatory processes occurring in the genital organs of young girls at the time of the menarche, and the powerful impression which the new thoughts, hopes, and fears excited at this period of life cannot fail to exercise on the nervous and emotional life, will enable us to understand how it is that the appearance of the first menstruation may give rise, especially in neurasthenic or psychopathic subjects, to manifold nervous disturbances and also to disorders of the mind.