We found the body somewhat emaciated, and the lower extremities and left arm œdematous. Might not this swelling of the left arm have depended on her constant posture of inclining to her left side?
The face, especially at the lips, was livid, though not so much as in many other cases of this disease. On the left shoulder were small, hard, and prominent livid spots.
The cellular membrane, both on the outside and inside of the thorax, was quite bloody, which is not usually the case in dead bodies. The cartilages of the ribs were slightly ossified, and, upon their removal, it appeared that the pericardium and its contents occupied an extraordinary space, for the lungs were quite concealed by them. These organs being drawn forward, appeared sound and free from adhesions; their colour, anteriorly, was rather dark; posteriorly, still darker; their consistence firm. Their vessels were so crowded with blood, as to cause an uniform dark colour in the substance of the lungs, especially in some particular spots, where the blood appeared to be accumulated; but whether this accumulation was confined to the blood vessels, or extended to the bronchial vesicles, could not be satisfactorily determined. No one can doubt that blood may be frequently forced through the thin membrane of the air vesicles, who considers, that in these cases the heart often acts with uncommon violence, that, when it is enlarged, it attempts to send toward the lungs more blood than their vessels can contain, and that there is commonly some obstruction to the return of blood from the lungs into the heart, from derangement either in the mitral or aortal valves, or in the aorta. The consequent accumulation of blood in the lungs seems to me to be the probable cause of the dyspnœa, which so much distresses those affected with diseases of the heart; for if there be an inordinate quantity of blood, there must be a deficiency of air.
This accumulation of blood in the lungs has, by some writers, been considered as an appearance belonging to idiopathic hydrothorax. Whether it ever exists in that complaint seems to me uncertain. The pressure of water upon the lungs, may possibly interrupt the free circulation of blood through their vessels, yet probably the same pressure would prevent the entrance of blood into the vessels, unless there be some other cause to overcome it, such as increased action of the heart, which attends only the first stage of hydrothorax. It has beside been proved by the experiments of Bichat, that the collapsion of the lungs does not obstruct the circulation of blood through the pulmonary vessels. It seems probable, therefore, that those who have thought this collection of blood an appearance belonging to idiopathic hydrothorax, have mistaken for it the secondary hydrothorax produced by diseases of the heart.
On pursuing the examination, we found, behind the lungs, about five or six ounces of yellowish serum in each cavity of the pleura, and about one ounce in the cavity of the pericardium. The heart was then seen enlarged to more than double its natural size. Its surface, especially along the course of the branches of the coronary arteries, was whitened by coagulated lymph. In the cavities of the heart, which were all enlarged and thickened, particularly the left, were found portions of coagulum mixed with fluid blood. Near its apex, over the left ventricle, was a small soft spot which, to the finger, seemed like the point of an abscess ready to burst. The tricuspid valves, and the valves of the pulmonary artery, had lost somewhat of their transparency, and were a little thickened, though not materially. It is worthy of remark, that these valves have not exhibited any great appearance of disease in any of these cases, while those of the left side of the heart have scarcely ever been found healthy. So it appeared in this case. The mitral valves were uniformly thickened, and partly cartilaginous; the left portion adhered to the side of the heart. The valves of the aorta had lost their usual form, were entirely cartilaginous, and almost equal in firmness to the aorta, which was cartilaginous under the valves, sound in other parts, and rather small, compared to the size of the heart.
It may be thought that the symptoms, on which reliance was placed to distinguish disorder of the valves of the aorta, are fallacious, because it was supposed that these valves would be found ossified, when they were in reality only cartilaginous. The difference, however, would be small in the effects produced on the circulation by such a state of the valves as existed in this case, and a very considerable ossification; for, if the valves were rigid and unyielding, it is of little importance whether they were rendered so by bone, or cartilage. Whether the irregularity of the pulse in these diseases generally depends on the disorganized state of the aortal, or other valves, we have not at present observations sufficient to decide. In the [sixth case] no irregularity of the pulse could be observed, although the other symptoms were unequivocal, and no disease was found in the valves; while, on the other hand, we find that the valves in the [fourth case] were not importantly deranged, and yet there was an irregularity and intermission of the pulse, which however might be attributed to the dropsy of the pericardium. In the [seventh case], where the pulse was not irregular, the valves of the aorta were “considerably thickened in various spots;” in the fifth, the pulse was irregular, and the valves were not materially altered, but there was water in the pericardium. In all the other cases, the pulse was irregular, and the valves were much disordered: On a review of these cases, therefore, we find some reason to believe, that the irregularity of the pulse depends much on disease of the valves, especially those of the aorta.
The cavity of the abdomen being opened, no water was discovered in it, nor any other uncommon appearance, except about the liver, the coat of which had been rendered opaque by coagulated lymph, and was studded over with soft, dark coloured tubercles. The substance of the liver was tender, and full of bile and venous blood.
DISSECTION OF CASE TENTH.
TWENTY-FOUR HOURS AFTER DEATH.
The symptoms of disease in this patient did not alter much, except in degree, from the middle of April to the 10th of May. He became weaker, had more straitness and pain about the heart on moving, an increase of swelling in the legs and abdomen, return of the cough, and a pain from the left shoulder to the middle of the arm. After his relapse in April, he had been directed to employ blisters, the submuriate of quicksilver, and the tincture of the digitalis purpurea. The dose of the tincture he gradually increased, till he took two hundred drops, two or three times in a day. Notwithstanding a profuse flow of urine, the legs became so hard and painful, that I made punctures to discharge the water from them. He would have had the water in the abdomen drawn off, but believing it would not afford him great relief, I dissuaded him from it. On the 10th of May, after having passed an unusually comfortable night, he rose and left his chamber for five or six hours, then retiring to it again, said he would be tapped that day, and, after lying down, was quitted by his attendant, who went in an hour after and found him dead. This was rather unexpected, for he had the appearance of sufficient vigour to struggle with disease three or four weeks longer.
A number of medical gentlemen being assembled, as has been usual on these occasions, we first remarked, that the face was swollen, and extraordinarily livid; for, although a considerable degree of lividity, and sometimes of redness, after death, is peculiar to these cases, we had seen none which resembled this. Hard and prominent purple spots were observed upon the shoulders, side, and back. The surface of the body was moderately covered with fat; the legs and abdomen were much swollen with water, the arms more slightly. The integuments of the thorax being cut through, the cellular membrane discharged a serous fluid from every part; these being turned aside, to lay bare the cartilages of the ribs, we found them completely ossified; and having divided them, with a saw, the cavity of the thorax was opened. The cellular membrane, inside the thorax, about the mediastinum, had not so bloody an appearance as we witnessed in the preceding cases, nor were the lungs, either externally or internally, so dark coloured as usual, though they were much darker, firmer, and more filled with blood, than is common in subjects of other diseases. The lungs of the left side adhered closely to the pleura costalis, and those of the right were tied by loose and membranous adhesions; beside which there was no appearance of disease about them. The cavity of the pleura did not contain any water; that of the pericardium held about six ounces.