[Bacteremia in outpatients: a 10-year period follow-up].
OBJECTIVE
To know the incidence of bacteremia in outpatients (BO), their clinical and epidemiological characteristics and evolution.


METHODS
We have analyzed the percentage of positive blood cultures and BO in a 10 year period. We have collected year, month, age, gender, first diagnosis, risk factors for bacteremia, microrganism, final diagnosis and diagnosis concordance. The bacteremia was classified by origin in: urinary tract infection, respiratory, abdominal, venous catheter (IVC), skin, endocarditis, bacteremia without an apparent focus (BWAF) and miscellaneous. We have compared the characteristics of the patients with and without diagnosis concordance.


RESULTS
We have collected 283 episodes. The percentage of positive blood culture remained wi-thout changes and the percentage of BO tended to decrease. The most prevalent bacteria was Escherichia coli (56.5%) and the most frequent origin was urinary (59.7%) and BWAF (19.7%). There was no concordance between diagnoses in 37.1%. 30.3% of patients were admitted. Urinary tract infection was detected in 93.5% of the cases, IVC in 6.2% and BWAF in 0%. With regard to the risk factors of bacteremia, human immunodeficiency infection tended to decrease and neoplasm to increase during the study period.


CONCLUSIONS
In our experience, BO tends to decrease. The management of urinary infection seems adequate, and IVC could be improved. The main challenge is the cases of BWAF.
Tudela
Pere
P
Unidad de Corta Estancia-Servicio de Urgencias, Hospital Germans Trias i Pujol, Badalona, Barcelona, España. ptudela.germanstrias@gencat.net
Mòdol
Josep Maria
JM
Giménez
Montserrat
M
Prat
Cristina
C
Vilaseca
Blanca
B
Tor
Jordi
J
D016470:Bacteremia / Q000453:epidemiology*; D002404:Catheterization / Q000009:adverse effects; D015897:Comorbidity / Q000639:trends; D004636:Emergency Service, Hospital / Q000706:statistics & numerical data; D004927:Escherichia coli Infections / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D015658:HIV Infections / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000453:epidemiology; D010045:Outpatients / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D013030:Spain / Q000453:epidemiology; D015819:Substance Abuse, Intravenous / Q000453:epidemiology; D014552:Urinary Tract Infections / Q000150:complications