• S Mintegui Raso, J Benito Fernández, J Sánchez Echániz, G Rubio Fernández, M A Vázquez Ronco, M M Navarro de Prado, and L V Rodríguez Bartolomé.
• Urgencias de Pediatría, Departamento de Pediatría, Hospital de Cruces, Cruces-Barakaldo, Bizkaia.
• An. Esp. Pediatr. 1999 Jan 1; 50 (1): 25-8.

ObjectiveThe aim of this study was to know the incidence of serious bacterial infections (SBI) in children without sepsis or intracranial infection in which spinal puncture (LP) was performed in an Emergency Department.Patients And MethodsA retrospective study of all 471 previously healthy children between 1 month and 14 years of age in which a lumbar puncture was performed between July 1995 and March 1997 in the Emergency Department of our hospital was performed.ResultsTwo hundred and three children (43%) had sepsis, meningitis or encephalitis (aseptic meningitis 149, 31.6%; sepsis-bacterial meningitis 26, 5.5%; nonspecific meningitis 26, 5.5%; encephalitis 2, 0.4%) and 14 (5.2%) had pneumonia. Of the other 254 children, 36 (14.1%) had a SBI: 19 urinary tract infections (E. coli), 11 bacteremia (Streptococcus pneumoniae 8, Salmonella enteritidis 1, Proteus mirabilis 1, E. coli 1, the latter two also having a positive urine culture) and 6 bacterial gastroenteritis (salmonella 5, Campylobacter jejuni 1). The incidence of SBI was significantly higher in the group of children younger than 5 years old (32/175, 18.2%) than in the older group (4/79, 5.0%, p = 0.009). Two patients died (one with pneumococcal meningitis and one with meningococcal sepsis).ConclusionsChildren with fever and a normal result in the LP must be carefully examined and, especially in younger patients, urine, blood and stool (if stool abnormalities) cultures should be collected. These children must be closely observed in the hospital or at home and must be re-evaluated by their pediatrician in the following 24 hours.

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