Streptococcal bacteremia in adult patients with leukemia undergoing aggressive chemotherapy. A review of 55 cases
- 1 May 1990
- journal article
- research article
- Published by Springer Nature in Infection
- Vol. 18 (3), 138-145
- https://doi.org/10.1007/bf01642101
Abstract
We reviewed 55 cases of streptococcal bacteremia in adult patients who received cytotoxic chemotherapy for treatment of acute leukemia. Viridans group streptococci were the most frequent species isolated (45 isolates). Hemolytic streptococci (four isolates), pneumococci (three isolates), and enterococci (three isolates) were infrequent. Clinical features of streptococcal bacteremia included fever, upper and lower respiratory infection, respiratory distress syndrome, soft tissue infection, and septic shock. Forty patients who had only streptococci, but no other organisms isolated from their blood, were compared with 36 cases of gram-negative bacillary bacteremia that occurred during the same study period within the same population at risk. The comparison showed that patients with streptococcal bacteremia had more often received high dose cytosine arabinoside as part of their chemotherapy (17 vs. five), had a longer mean duration of fever (11 vs. seven days, p<0.01) needed slightly more days of antibacterial therapy (15 vs. 12 days, p=0.07, not significant), and were more likely to have been treated with newer quinolones for infection prevention (30 vs. eight). No differences between both groups were found for age, underlying disease, remission status, duration of severe granulocytopenia, and number of superinfections. The overall mortality was 18% in streptococcal bacteremia and 17% in gram-negative bacillary bacteremia. Streptococci, especially viridans group streptococci, should now be regarded as frequent causes of serious life-threatening infections following aggressive chemotherapy in patients with hematologic malignancies. Die vorliegende Arbeit analysiert 55 Fälle von Streptokokken-Bakteriämie bei erwachsenen Patienten nach aggressiver antileukämischer Chemotherapie. Vergrünende Streptokokken waren die häufigsten Erreger (45 Isolate). Beta-hämolysierende Streptokokken (vier Isolate), Pneumokokken (drei Isolate) und Enterokokken (drei Isolate) waren dagegen eher selten. Klinisch waren die Infektionen gekennzeichnet durch Fieber, Beteiligung des oberen und unteren Respirationstrakts, Weichteilinfektion, durch Atemnotsyndrom und septischen Schock. 40 Patienten, bei denen ausschließlich Streptokokken in der Blutkultur nachgewiesen wurden, wurden verglichen mit 36 Patienten (ausgewählt nach denselben Kriterien) mit gramnegativer bakteriämischer Infektion. Die Gegenüberstellung ergab, daß Patienten mit Streptokokken-Bakteriämien häufiger hochdosiertes Cytosin-Arabinosid erhalten hatten (17 versus fünf Tage), eine längere Fieberdauer hatten (11 versus sieben Tage, P<0.01), etwas länger antibakterielle Therapie benötigten (15 versus zwölf Tage, P=0.07, nicht signifikant) und häufiger mit Fluorochinolonen zur Infektprophylaxe behandelt waren (30 versus acht). Beide Gruppen unterschieden sich nicht hinsichtlich Alter, Grunderkrankung, Dauer der Granulozytopenie und Häufigkeit von Superinfektionen. Die Letalität betrug 18% bei Streptokokken-Bakteriämie und 17% bei Gram-negativer Bakteriämie. Die Untersuchung zeigt, daß Streptokokken, besonders vergrünende Streptokokken, ungewöhnlich häufig unerwartet schwere Infektionen bei Patienten nach antileukämischer Chemotherapie verursachen können.Keywords
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