Studies in cardiac pathology / by George William Norris.

  • Norris, George William, 1875-1965
Date:
1911
Catalogue details

Licence: Public Domain Mark

Credit: Studies in cardiac pathology / by George William Norris. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    carditis in the class of cases observed. The bacteria isolated, while having little or no pathogenic power to animals, and being susceptible to phagocytosis, present definite evidence of being immunized against the antibodies of the individual host, thereby perhaps overcoming the resistance of the latter. In a series of cases of pneumococcus endocarditis studied by Rosenow^ the mitral and tricuspid valves were mostly diseased, a state of affairs which he attributes to the presence of capillaries in these valves favoring embolism. The exact distribution in Preble's cases of endocarditis in pneumonia was as follows: Per Cent. Aortic only 56 39.7 Mitral only 40 28.3 Aortic and mitral 20 14.1 Tricuspid only 12 8.5 Pulmonary only 5 3.5 Aortic, mitral, and tricuspid 5 3.5 Mitral and tricuspid 2 1.4 Aortic and tricuspid 1 0.7 In Jurgensen's collection we find: Peh Cent. Aortic only 18.7 Mitral only G6.3 Aortic and mitral 9.2 Tricuspid only 0.4 Pulmonary only 2.3 Aortic, mitral, and tricuspid 1.0 Mitral and tricuspid 1.8 Aufrecht gives the following data regarding the distribution in relation to age, as well as the distribution of pneumonia itself: Pneumococcus Number Endocarditis. Pneumonia. Decade. of Cases. Per Cent. Per Cent. First 2 1.4 1 6.8 1 Second 8. . . . 5.7 i 11.9 22.2 j-58 Third 15... . lO.S J 29.0 J Fourth •. 42. . . ..30.4 \ 17.0 ] Fifth 27. . . .19.5 [70.9 13.0 1-35.5 Sixth 29. . . .21.0 J 5.5 J Seventh and over 15... . 10.S 6.0 Chorea, another disease which has lately been added to the list of infections, is a common cause of endocarditis. Thayer^ ' Rocenow; Jour. Infect. Dis., 1909, p. 245. - Thayer: Jour. Am. Med. Assoc, 1906, p. 1352.