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Pre-admission antibiotics for suspected cases of meningococcal disease
T Sudarsanam1, P Rupali, P Tharyan
1Christian Medical College, Medicine Unit 2, Vellore, Tamil Nadu, India, 632 004. thambu@cmcvellore.ac.in
Background:
Meningococcal disease begins suddenly and death can follow within hours. Pre-admission antibiotic therapy aims to prevent delay in starting therapy that occurs if bacterial confirmation is sought before instituting therapy.
Objectives:
To study the effectiveness and safety of pre-admission antibiotics versus no pre-admission antibiotics or placebo and of different pre-admission antibiotic regimens in decreasing mortality and morbidity in people suspected of meningococcal disease.
Search Strategy:
We searched the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library, 2007, Issue 1), MEDLINE (1966 to February 2007) and EMBASE (1980 to February 2007).
Selection Criteria:
We selected randomised controlled trials (RCTs) or quasi-RCTs, of all people with suspected meningococcal infection. We compared antibiotic treatment versus placebo or no intervention, or different antibiotic treatments administered before admission to hospital or confirmation of the diagnosis.
Data Collection And Analysis:
Two author authors independently assessed quality and extracted data from included trials. We calculated the relative risk (RR) and 95% confidence interval (CI) for dichotomous data. As only one trial fulfilled inclusion criteria, data synthesis was not performed.
Main Results:
No RCTs were found that compared pre-admission antibiotics versus no pre-admission antibiotics or placebo. One open-label RCT evaluated a single dose of intramuscular ceftriaxone versus a single dose of intramuscular long acting (oily) chloramphenicol. Interventions did not differ significantly in mortality (RR 1.2, 95% CI 0.5 to 2.6; N = 510; 349 confirmed meningococcal meningitis; 26 deaths), nor in proportions of survivors who developed neurological sequelae (RR 1.2, 95% CI 0.6 to 2.2; N = 488; 36 with neurological sequelae), or that were classified as clinical failures (RR 0.8, 95% CI 0.4 to 1.8; N = 488, 25 clinical failures). No adverse effects of treatment were seen. No data were available for our secondary outcomes.
Authors' Conclusions:
We found no reliable evidence to support or refute the use of pre-admission antibiotics for suspected cases of meningococcal disease. Evidence from one RCT-during an epidemic of meningococcal meningitis, indicated that single intramuscular injections of ceftriaxone and long-acting chloramphenicol were equally effective and safe in preventing mortality and morbidity. The choice between these antibiotics would be based on affordability, availability, and patterns of antibiotic resistance.Further RCTs comparing different pre-admission antibiotics, including penicillin, including participants with severe illness are ethically justifiable and are needed to provide reliable evidence to clinicians in differing clinical settings.
Insights
Pre-admission antibiotics for suspected meningococcal disease lack reliable evidence for effectiveness. One trial showed ceftriaxone and chloramphenicol were equally safe and effective, but further research is needed.
Area of Science:
- Infectious Diseases
- Clinical Pharmacology
- Evidence-Based Medicine
Background:
- Meningococcal disease is a rapidly progressing illness with high mortality.
- Pre-admission antibiotic therapy aims to reduce treatment delays.
- Timely intervention is crucial for improving outcomes in suspected meningococcal infections.
Purpose of the Study:
- To evaluate the effectiveness and safety of pre-admission antibiotics versus no pre-admission antibiotics or placebo.
- To compare different pre-admission antibiotic regimens for suspected meningococcal disease.
- To assess the impact on mortality and morbidity.
Main Methods:
- Searched CENTRAL, MEDLINE, and EMBASE databases.
- Included randomized controlled trials (RCTs) and quasi-RCTs.
- Compared antibiotic treatment versus placebo/no intervention or different antibiotic regimens administered before hospital admission.
Main Results:
- No RCTs compared pre-admission antibiotics to placebo or no intervention.
- One RCT found intramuscular ceftriaxone and long-acting chloramphenicol equally effective and safe.
- No significant differences in mortality, neurological sequelae, or clinical failures were observed between the two antibiotics.
Conclusions:
- No reliable evidence supports or refutes pre-admission antibiotics for suspected meningococcal disease.
- Ceftriaxone and chloramphenicol demonstrated comparable safety and efficacy in one study.
- Further RCTs are needed to guide clinical practice, especially for severe cases.
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