Related Experiment Videos
[Clinical importance of Acinetobacter calcoaceticus isolations from blood and venous catheters]
Abstract:
From 1980 to 1982 Acinetobacter calcoaceticus (A.c.) derived from blood cultures and venous catheters of 29 patients could be grown. 6 patients with clinical signs of Gram-negative septicemia had two or more blood cultures positive for A.c. Thus, the role of A.c. as the etiologically relevant pathogen seems to be evident. In 14 cases with clinical signs of septicemia but only one set of blood cultures positive for A.c. it is felt to be the causative agent since no other cause could be found. In 9 cases isolation of A.c. seems to be due to contamination - most likely from skin -, because neither evidence of septicemia nor relationship to the diseases present of A.c. existed.
Insights
Acinetobacter calcoaceticus (A.c.) can cause Gram-negative septicemia in patients. Careful analysis of blood cultures is crucial to distinguish true infections from contamination, identifying A.c. as a significant pathogen.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Clinical Bacteriology
Context:
- Acinetobacter calcoaceticus (A.c.) is an opportunistic pathogen.
- Bloodstream infections pose significant clinical challenges.
- Distinguishing true pathogens from contaminants is critical for patient management.
Purpose:
- To evaluate the etiological role of Acinetobacter calcoaceticus in patient septicemia.
- To determine the significance of A.c. isolation from blood cultures.
- To differentiate between true A.c. infections and contamination.
Summary:
- Acinetobacter calcoaceticus (A.c.) was isolated from 29 patients between 1980-1982.
- Six patients with Gram-negative septicemia had multiple positive blood cultures for A.c., confirming its role as a pathogen.
- In 14 additional septicemia cases with a single positive A.c. culture, it was deemed the causative agent due to lack of other identified causes.
- Nine cases of A.c. isolation were attributed to contamination, likely from skin, as no septicemia evidence or clinical relevance was found.
Impact:
- Highlights the importance of A.c. as a potential cause of Gram-negative septicemia.
- Emphasizes the need for rigorous interpretation of blood culture results in diagnosing infections.
- Informs clinical practice regarding the management of A.c. bloodstream infections.