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Rebound fever in bacterial meningitis: role of dexamethasone dosage
1Department of Pediatrics, Hadassah University Hospital, Jerusalem, Israel.
Abstract:
Since introducing dexamethasone as adjuvant therapy to antibiotics for bacterial meningitis, we have noticed an increase in the number of cases with secondary fever. Therefore, we performed a retrospective analysis of the 19 consecutive cases occurring during the last 5 years. Six patients received dexamethasone for 4 days, 5 received a 2-day course of dexamethasone and 8 received antibiotics only. The etiologic agents included: Haemophilus influenzae (in 11 patients), Streptococcus pneumoniae (in 6) and Neisseria meningitidis (in 2). Among the 11 patients receiving dexamethasone, the fever remitted within 1-5 days (average 1.7 +/- 1.2) while among the 8 patients not receiving dexamethasone the initial fever lasted 1-17 days (average 5.3 +/- 1.7) (P = 0.009). There was secondary fever without a definable clinical or bacteriological source in 9 of 11 patients receiving dexamethasone and in none of those who were treated without steroids (P < 0.001). The secondary fever among those who received dexamethasone for 2 days was low grade (37.5 degrees-38 degrees C) and lasted for 1 day only, while among those who received dexamethasone for 4 days it was > 38 degrees C and more prolonged (7 +/- 2.3 days) (P < 0.03). Total days of fever were 2.2 +/- 0.2 days when dexamethasone was administered for 2 days only vs. 7.8 +/- 1.7 for the patients in each of the two other groups (P < 0.03). The relatively benign course with the 2-day regimen of dexamethasone makes us consider whether a 2-day course of dexamethasone might save costly evaluations of secondary fever and much concern. Further studies are needed in order to document the efficacy of this regimen in reducing neurological sequelae.
Insights
A 2-day course of dexamethasone in bacterial meningitis treatment may reduce fever duration and secondary fever cases. This approach could potentially decrease unnecessary medical evaluations and patient concern, warranting further investigation for neurological benefits.
Area of Science:
- Infectious Diseases
- Pediatrics
- Pharmacology
Background:
- Bacterial meningitis treatment often includes antibiotics and dexamethasone.
- An increase in secondary fever cases has been observed with adjuvant dexamethasone therapy.
- Secondary fever necessitates further investigation and can cause patient concern.
Purpose of the Study:
- To analyze the incidence and characteristics of secondary fever in bacterial meningitis patients treated with dexamethasone.
- To compare fever duration and outcomes between patients receiving different dexamethasone regimens and those receiving antibiotics only.
- To evaluate the potential benefits of a shorter dexamethasone course in managing bacterial meningitis.
Main Methods:
- Retrospective analysis of 19 consecutive bacterial meningitis cases over 5 years.
- Categorization of patients into three groups: dexamethasone for 4 days, dexamethasone for 2 days, and antibiotics only.
- Analysis of etiologic agents, fever duration, and occurrence of secondary fever.
Main Results:
- Patients receiving dexamethasone had significantly shorter initial fever duration compared to those without (1.7 days vs. 5.3 days).
- Secondary fever occurred in 9 of 11 patients on dexamethasone, but none in the antibiotic-only group.
- A 2-day dexamethasone course resulted in low-grade, short-duration secondary fever (1 day), unlike the 4-day course.
Conclusions:
- A 2-day dexamethasone regimen appears to be associated with a more benign fever course in bacterial meningitis.
- The findings suggest a 2-day dexamethasone course may reduce costly evaluations for secondary fever.
- Further research is needed to confirm the efficacy of a 2-day dexamethasone regimen in preventing neurological sequelae.
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