Role of lumbar puncture in clinical outcome of suspected acute bacterial meningitis

BACKGROUND Meningitis remains a significant source of mortality and morbidity,with an incidence of 1 per 100000 persons in the United States.Guidelines recommend obtaining blood cultures and cerebrospinal fluid(CSF)studies in patients presenting with acute meningitis syndrome,and beginning treatment with broad spectrum antibiotics based on the age and certain predisposing conditions.In some patients however,the diagnostic lumbar puncture(LP)is not performed due to a multitude of reasons,ranging from increased intracranial pressure to failed attempt.In such situations,appropriate therapy is initiated empirically and often continued without establishment of a definitive diagnosis.AIM To determine whether a diagnostic LP in acute meningitis syndrome was associated with a better outcome and less duration of antibiotic therapy,along with potential causes for deferral of procedure.METHODS A retrospective study was conducted amongst the patients presenting to a 360 bedded community hospital in central Massachusetts with a diagnosis of acute meningitis syndrome between January 2010-September 2022.The electronic health records were accessed to collect necessary demographic and clinical data,including etiology of meningitis,lumbar puncture results,reason for procedure deferral,duration of antibiotic therapy and clinical outcome.The patients were subsequently divided into two groups based on whether they received a LP or not,and data was analyzed.RESULTS A total of 169 patients admitted with acute meningitis syndrome between September 2010-2022 were included in the study.The mean age of the participants was 54.3 years(SD+/-19.2 years).LP was performed for 130(76.9%)participants,out of which,28(21.5%)showed some growth in CSF culture.The most commonly identified organism was streptococcus pneumoniae.Amongst the 39 patients in whom LP was deferred,the major reasons recorded were:Body habitus(n=6,15.4%),and unsuccessful attempt(n=4,10.3%).While 93(71.5%)patients with LP received antibiotic therapy,only 19(48.7%)patients without LP received the antibiotics,with the principal reason being spontaneous improvement in sensorium without any diagnosed source of infection.The mean duration of antibiotic use was 12.3 days(SD+/-5.6)in the LP group and 11.5 days(SD+/-7.0)in the non-LP group(P=0.56;statistically not significant).We observed higher long term sequalae in the non-LP group(n=6,15.4%)compared to the LP group(n=9,6.9%).Similarly,the death rate was higher in the non-LP group(n=7,18.0%)compared to the LP group(n=9,6.9%).CONCLUSION LP remains the cornerstone for diagnosing meningitis,but often CSF results are unavailable,leading to empiric treatment.Our study identified that body habitus and unsuccessful attempts were the most common reasons for LP not being performed,leading to empiric antibiotic coverage.There was no difference between the duration of antibiotics received by the two groups,but a lower proportion of patients without LP received antibiotics,attributed to a spontaneous improvement in sensorium.However,the residual neurological sequelae and death rates were higher in patients without LP,signifying a potential under-treatment.A LP remains crucial to diagnose meningitis,and a lack of CSF analysis predisposes to under-treatment,leading to higher neurological sequelae and increased chances of death.

In Hospital Death among under Five Years Children Hospitalized with Meningitis in the Eastern of the Democratic Republic of Congo

Background: Meningitis is a major public health problem needing timely diagnosis, appropriate treatment, prevention and control. Despite the advances in diagnosis and treatment of infectious diseases, meningitis is still considered as an important cause of mortality and morbidity, especially in the paediatric population of lower income countries such as the Democratic Republic of the Congo (DR Congo). In this study, we aimed to analyse the fatality aspect of suspected meningitis among children under five years. Materials and Methods: A prospective, descriptive study was carried out in the Paediatrics departments of four hospitals in the South-Kivu province in the Eastern part of the DR Congo from April 2021 to March 2022. Of the 1386 children enrolled, 251 children were suspected of meningitis. This study captures data generated in the framework of routine medical practice, which includes medical history, clinical diagnosis and results of locally conducted laboratory tests. Results: Throughout the study period, a total of 251 patients (18.1%) aged 1 month to 59 months with suspected meningitis were recruited out of 1386 children hospitalized in the Paediatrics. The fatality among hospitalized children with suspected meningitis during the study period was 27.9%, however the mortality linked to meningitis decreases with age, ranging from 37.5% among children under 2 years to 19.4% among those over 2 years old. Children hospitalized for meningitis with malnutrition as an underlying conditions, had a 3.5 times greater risk of dying. The case fatality rate was higher in transferred and not vaccinated children respectively (2.3 and 2.5 times). We observe that the death occurs early within the first 3 days. Conclusion: Our study noted a higher fatality rate in children with suspected meningitis that could probably be linked to the gape in vaccination and malnutrition as underline condition.

Neonatal Cerebrospinal Fluid, Bacterial Analysis as Seen at the University of Port Harcourt Teaching Hospital: A Five-Year Review

Background: Cerebrospinal fluid analysis is a very important tool in the diagnosis of bacterial meningitis in the new born. Bacterial meningitis is a potent cause of morbidity and mortality in the neonatal age group, with a very high incidence of neurological complications. Aim: To identify the bacterial pathogens isolated from the cerebrospinal fluids of neonates at the University of Port Harcourt Teaching Hospital (UPTH) and their sensitivity patterns. This will assist the neonatologist in the choice of empirical antibiotic treatment. Study Design: Retrospective, descriptive, cross sectional study. Place and duration of study: University of Port Harcourt Teaching Hospital, from 1 January 2009 to 31 December 2014. Methods: Records of bacterial analysis of cerebrospinal fluid from neonates seen at the special care baby unit of the University of Port Harcourt Teaching Hospital with clinical suspicion of meningitis between 1 January 2009 and 31 December 2014 were retrieved from the microbiology record book. Data on patients age, sex, appearance of Cerebrospinal fluid, cell count, microscopy/gram stain, culture and antibiotic sensitivity were retrieved from laboratory record books and entered into a Microsoft? excel spread sheet and analysed using SPSS version 20.0. Results: One hundred and thirteen neonates: 70 (61.95%) of these patients were male while 43 (38.05%) were females. Only 1 (0.89%) was positive for culture yielding a growth of Escherichia coli which was sensitive to Imipenem, moderately sensitive to Ampicillin, Gentamicin, ceftazidime, cefuroxime, ciprofloxacin and Amoxicillinclavulanic acid. It was resistant to cefotaxime. 112 (99.11%) of the neonates had presumed neonatal meningitis while only 1 (0.89%) had proven neonatal meningitis. Conclusions: There is a low yield of organisms in cerebrospinal fluid of neonates at the University of Port Harcourt Teaching Hospital.