File:Studies in cardiac pathology (1911) (14594142080).jpg

Identifier: studiesincardiac00norr (find matches)
Title: Studies in cardiac pathology
Year: 1911 (1910s)
Authors: Norris, George William, 1875-1965
Subjects: Cardiovascular System
Publisher: Philadelphia : Saunders
Contributing Library: Columbia University Libraries
Digitizing Sponsor: Open Knowledge Commons

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less sharply cir-cumscribed rubbery appearance of the lesions is shown. Also the absence of calcification.(Compare with Fiss. 41, 66, and 71. See also under Cardiac Syphilis, p. 200, and Dis-easf» of the .Vonif Orififo, p. 50.) 204 STUDIES IN CARDIAC PATHOLOGY leaflets suggested that the agent which produced the chronicinflammatory and proliferative changes in the wall of the aortahad some part in the disease of the aortic valves. Of these 21 cases all but 3 had shown the clinical evidences of aortic leakage.There were 55 other cases of aortic endocarditis among the 930 autopsiesin which the etiologic factor was an antecedent acute endocarditis (historyof infections and involvement of other valves, 21 cases), and others in which thesclerosis was general, involved the whole aorta, and was associated with markedcalcification (endarteritis deformans—pure aortic endocarditis, 34 cases). Longcope: The Association of Aortic Insufficiency with Syphihs, .lour. Am. Med.Assoc, .Ian. S, 1910.
Text Appearing After Image:
Fig. 73.—This Specimen Show.s a Dissection of the Aukiculo-ventricular Bundle(Bundle of His) in the Heart of a Bullock.The bundle is about 5 mm. in diameter and can be seen grayer than the rest of the mus-culature, running directly up the middle of the specimen in the left ventricle until it disappearsbeneath the heart muscle. In the right ventricle it runs obliquely upward toward the left,disappearing beneath the auriculo-ventricular valve. (Dissection by Dr. Krumbhaar.) Thenujierficial ponlion of the bundle and its proximity to the aortic and mitral valves indicate howrea/lily this structure might suffer damage in case of an inflammatory or degenerative process in-volving either of these valves or the intervening endocardium. XIII. CONGENITAL LESIONS IMPERFORATE VENTRICULAR SEPTUM An imperforate interventricular septum, like other congenitalabnormalities, is a condition which may be associated with otherdevelopmental malformations—harelip, cleft palate, polydactylism,supernumera

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