Case of aneurysm of the ascending aorta pressing upon the base of the right ventricle and opening into the origin of the pulmonary artery : with remarks on the communications of the sacs of aneurysms with the cardiac cavities and adjacent vessels / by Thomas B. Peacock, M.D.

  • Peacock, Thomas B. (Thomas Bevill), 1812-1882.
Date:
1868
Catalogue details

Licence: Public Domain Mark

Credit: Case of aneurysm of the ascending aorta pressing upon the base of the right ventricle and opening into the origin of the pulmonary artery : with remarks on the communications of the sacs of aneurysms with the cardiac cavities and adjacent vessels / by Thomas B. Peacock, M.D. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

    11/40 (page 9)
    seat which they occupy; those originating from the sinuses and the commencing portion of the aorta being rarely so large as those which arise from a higher part of the vessel. Thus of the cases of the first group the aneurysm is said to have been in I case the size of a nut, in 3 of a walnut, 4 of a hen's egg, 1 of the fist, and in 3 of an orange. In one case it is said to have been capable of holding an ounce and a half of blood; in one it was eighteen lines in circumference and twelve deep; and in one in which the sac was biloculate, one portion was as large as a hen's egg, the other double that size. Of the second group of cases, the aneurysm is compared in 2 cases to a hen's or duck's egg, 2 to the fist, 1 to an orange, and in 5 cases it occupied nearly the whole, or the whole, of the ascending portion of the aorta. In one case the sac was biloculate, one portion being as large as a hen's egg, the other as a walnut. In the two cases of the third series, the dilatation is said to have been considerable; and in the solitary case of the fourth description the sac at its aortic extremity would admit the thimib, and at its ter- mination in the left pulmonary branch was of the size of the carotid or subclavian artery. In several of the cases besides those mentioned, the aneurysms are stated to have been biloculate, or to have had pouches projecting from the larger cavity. Seat of communication.—The aorta at its origin is in immediate con- nection with the pulmonary artery, the right ventricle, the right auri- culo-ventricular aperture, and the adjacent parts of the right auricle. Higher ■up,itis injuxta-position with the sinuses and appendages of the auricles, and with the upper portion of the right ventricle, and espe- cially with the pulmonary artery and its branches. At a still higher level, a large portion of the vessel is exposed in the pericardiac cavity, and the descending vena cava lies on its right side. It is, therefore, with these several parts that aneurysms arising from the different por- tions of the aorta especially tend to form communications. Thus, of the cases of the first group, or those in which the aneurysms were situated at the commencement of the aorta, 3 opened into the right auricle,