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  • Title: Continuing changing patterns of disease in pyogenic liver abscess: a study of 38 patients.
    Author: Greenstein AJ, Lowenthal D, Hammer GS, Schaffner F, Aufses AH.
    Journal: Am J Gastroenterol; 1984 Mar; 79(3):217-26. PubMed ID: 6702806.
    Abstract:
    Changes in the etiology, clinical features, methods of diagnosis, and treatment of pyogenic liver abscess have occurred slowly but continuously over the past century. The earlier changes are well documented in the literature, and continuing variations in the classic patterns of disease are now evident. These include 1) a recent increase in incidence reflecting more accurate diagnostic techniques; 2) changes in bacteriology with a high incidence of Klebsiella infection; 3) a reduction in mortality, reflecting earlier diagnosis and more refined therapeutic methods; and 4) changes in the population at risk namely a large population of terminal cancer patients. Thirty-eight patients treated at the Mount Sinai Hospital over the past 16 years, 1967-1982, have been divided into two groups, each of 8 years duration, reflecting an earlier era before routine use of scanning procedures, and a later period when technetium, gallium, sonographic, and more recently CT imaging procedures were regularly done. During the latter period there was a significant increase in both the total number of liver abscesses diagnosed and in the number estimated as a proportion of all hospital admissions. Mortality has continued to fall to more acceptable levels with a 25% reduction overall. In the early era, extrahepatic intra-abdominal infection caused all four deaths. In the past 8 years obstructing or metastatic cancer has caused four of the five deaths. Bacteremia occurred in six of the nine deaths, five of these being of biliary origin. The decrease in mortality may reflect earlier diagnosis, an increase in the number of solitary abscesses, and better therapy.
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