There are comparatively few reports in the literature of large series of cases bearing on the prognosis of angina pectoris and coronary occlusion, and the available reports show considerable differences in their findings. Some of the reports refer only to cases that were followed till death and do not include those of patients still living, thus conveying a wrong impression of the actual prognosis.
As examples of the differences in the longevity figures of angina pectoris as reported in the literature are the following: Herrick and Nuzum1 in a study of 200 patients, 50 of whom died, found the average longevity for the dead group to be three years. Mackenzie2 reported on 380 patients, 214 of whom died, with an average longevity for the dead group of 5.4 years. White3 reported on 200 patients, 66 of whom died with an average longevity of 3.4 years for the
Sigler LH. PROGNOSIS OF ANGINA PECTORIS AND CORONARY OCCLUSION: FOLLOW-UP OF 1,700 CASES. JAMA. 1951;146(11):998–1004. doi:10.1001/jama.1951.03670110018006
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