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The Egyptian Journal of Immunology Jul 2023Meningitis is a critical public health problem demanding immediate diagnosis and effective treatment due to high mortality rates. Cerebrospinal Fluid (CSF) lactate...
Meningitis is a critical public health problem demanding immediate diagnosis and effective treatment due to high mortality rates. Cerebrospinal Fluid (CSF) lactate concentration is a promising test to distinguish bacterial from viral meningitis. This study aimed to assess the performance and usefulness of CSF lactate as a biomarker to differentiate between bacterial and viral meningitis, and to determine its optimal level to differentiate between them. This prospective study included 50 patients, presented to Abbassia Fever Hospital with clinical findings consistent with meningitis. Patients were divided into two groups: Group1 included 30 patients with bacterial meningitis. Group 2 included 20 patients with viral meningitis. CSF lactate and other conventional CSF parameters were recorded. For CSF culture, Streptococcus pneumoniae was identified in 53.3% of the bacterial meningitis group. The polymerase chain reaction (PCR) indicated that S. pneumoniae was present in 26/50 (52%) and 3/50 (6%) patients were PCR negative. Among bacterial meningitis patients, S. pneumoniae was the most pervasive organism 26/30 (86.7%). The mean CSF lactate level was 9.3 mmol/l ±5.0 (2.2-17.6). There was a statistically significant strong agreement (Kappa=0.957) between types of meningitis diagnosed by PCR, culture, and CSF lactate at cutoff level of 7.2 mmol/L. This cutoff value was the best to differentiate between bacterial and viral meningitis. The validity of CSF lactate as a differentiating tool showed sensitivity, specificity, positive predictive value, and negative predictive value of 93.3%, 100%, 100%, and 90.9%, respectively. In conclusion, CSF lactate could be a valuable, sensitive, specific, and rapid marker for identifying the most dangerous bacterial causes of CNS infection, especially S. pneumoniae. CSF lactate can be routinely used as an early biochemical warning marker and a useful point-of-care test. CSF lactate at cutoff level of >7.2 mmol/L can accurately detect S. pneumoniae, the most prevalent organism in Egypt.
Topics: Humans; Lactic Acid; Prospective Studies; Diagnosis, Differential; Meningitis, Viral; Meningitis, Bacterial; Biomarkers; Sensitivity and Specificity
PubMed: 37440535
DOI: No ID Found -
Microorganisms Sep 2021The major aim of the enterovirus surveillance (EVSurv) in Germany is to prove the absence of poliovirus circulation in the framework of the Global Polio Eradication...
The major aim of the enterovirus surveillance (EVSurv) in Germany is to prove the absence of poliovirus circulation in the framework of the Global Polio Eradication Program (GPEI). Therefore, a free-of-charge enterovirus diagnostic is offered to all hospitals for patients with symptoms compatible with a polio infection. Within the quality proven laboratory network for enterovirus diagnostic (LaNED), stool and cerebrospinal fluid (CSF) samples from patients with suspected aseptic meningitis/encephalitis or acute flaccid paralysis (AFP) are screened for enterovirus (EV), typing is performed in all EV positive sample to exclude poliovirus infections. Since 2006, ≈200 hospitals from all 16 German federal states have participated annually. On average, 2500 samples (70% stool, 28% CSF) were tested every year. Overall, the majority of the patients studied are children <15 years. During the 15-year period, 53 different EV serotypes were detected. While EV-A71 was most frequently detected in infants, E30 dominated in older children and adults. Polioviruses were not detected. The German enterovirus surveillance allows monitoring of the circulation of clinically relevant serotypes resulting in continuous data about non-polio enterovirus epidemiology.
PubMed: 34683328
DOI: 10.3390/microorganisms9102005 -
Cureus Apr 2022Purpose In this study, we aimed to describe the clinical characteristics, laboratory findings, aetiologies, and role of PCR in the decision on the management plan and...
Purpose In this study, we aimed to describe the clinical characteristics, laboratory findings, aetiologies, and role of PCR in the decision on the management plan and duration of hospital stay in Jordanian children diagnosed with aseptic meningitis. Methods This retrospective observational cohort study included children diagnosed with meningitis who were admitted to the paediatric ward at Jordan University Hospital (JUH) during the period from January 2016 to August 2020. Patients were identified through the ICD9 discharge code of meningitis. Patients diagnosed with aseptic meningitis (defined as a patient with signs and symptoms of meningitis with a cerebrospinal fluid (CSF) white cell count of >5 cells/mm, and a negative CSF Gram stain) were included, while patients who had low CSF glucose (<50% of serum) positive cerebrospinal fluid Gram stain and/or culture for bacterial meningitis were excluded. Files were reviewed to collect data on the clinical picture, viruses identified by the CSF viral polymerase chain reaction (PCR) panel, duration of medication, and hospital stay in patients with identified virus versus those with negative viral PCR. Results One hundred and thirty-one patients were included: 87 males (66.4%) and 44 females (33.5%). Fever was the most common presenting symptom, followed by headache, vomiting, and excessive sleep in 48.0%, 42.7%, and 35.8% of the patients, respectively. Prior oral antibiotic use was reported in 48/125 (38.4%) patients. White blood cell count (WBC) ranged from 4.800 to 22.000. cells/mL, 45 patients (34.3%) had counts above 15.000 cells/mL. C-reactive protein level was high in 61/103 (59.2%) patients. CSF WBC count was <100 in 62 (47.3%) patients while neutrophils predominance of >70% was present in 27 (20.6%) patients. Viral panel PCR was done for 100/131 (76.3%) patients and was positive in 66/100 (66%) patients; with enterovirus being the most common identified viruses (60/100; 60%). The average duration of hospital stay was 5.9 and 5.5 days for those with negative and positive PCR respectively. Ten (7.6%) patients had seizures upon presentation. None of the patients had any neurological sequel related to his meningitis. Conclusion Enteroviruses are the most common identified cause of paediatric aseptic meningitis in Jordan. Although PCR revealed an identified virus in around half of the patients, nevertheless, there was no adjustment in the management plan regarding duration of empirical antibiotic use and hospital stay. Increasing knowledge and awareness among clinicians on viral meningitis' lab characteristics might have great impact on duration of hospital stay and thus would be reflected on the patient and the healthcare system as well.
PubMed: 35611041
DOI: 10.7759/cureus.24383 -
Enfermedades Infecciosas Y... Jan 2024Enterovirus (EV) infections are the most frequent infections in the neonatal period and in many cases lead to hospital admission of the newborn (NB). The aim of this... (Observational Study)
Observational Study
INTRODUCTION
Enterovirus (EV) infections are the most frequent infections in the neonatal period and in many cases lead to hospital admission of the newborn (NB). The aim of this study was to determine the incidence of EV in the etiology of neonatal meningitis and to define the clinical characteristics of newborns with EV meningitis.
MATERIAL AND METHOD
Retrospective observational cohort study. Including 91 NBs with meningitis and gestational age greater than 34 weeks gestational age (GA) attended in our center over a period of 16 years.
RESULTS
The percentage of NBs with EV meningitis was higher than that of NBs with bacterial meningitis (BM) and accounted for 78% (n=71). Half of the NBs with EV infection had a history of epidemic environment among their caregivers. Fever was present in 96% of cases as a clinical sign and, in general, sensory disturbances represented the main neurological alterations. Antibiotics (ATB) were given to 71.4% of patients with EV infection. Detection of EV in CSF samples showed a high sensitivity for the diagnosis of EV meningitis. The most frequently implicated EV types were echovirus 11, coxsackievirus B5, echovirus 18, 25 and 7.
CONCLUSIONS
The results of this series show that enterovirus infection is a common cause of neonatal meningitis. These data underline the importance of rapid EV testing of infants with suspected meningitis. This allows early diagnosis and reduces antibiotic treatment, hospitalization time and related costs.
Topics: Infant; Infant, Newborn; Humans; Retrospective Studies; Enterovirus; Enterovirus Infections; Meningitis, Viral; Hospitalization; Infant, Newborn, Diseases; Anti-Bacterial Agents
PubMed: 36624031
DOI: 10.1016/j.eimce.2022.12.012 -
Frontiers in Pediatrics 2022Meningitis is an inflammation of the brain and spinal cord meninges caused by infectious and non-infectious agents. Infectious agents causing meningitis include viruses,... (Review)
Review
Meningitis is an inflammation of the brain and spinal cord meninges caused by infectious and non-infectious agents. Infectious agents causing meningitis include viruses, bacteria, and fungi. Viral meningitis (VM), also termed aseptic meningitis, is caused by some viruses, such as enteroviruses (EVs), herpesviruses, influenza viruses, and arboviruses. However, EVs represent the primary cause of VM. The clinical symptoms of this neurological disorder may rapidly be observed after the onset of the disease, or take prolonged time to develop. The primary clinical manifestations of VM include common flu-like symptoms of headache, photophobia, fever, nuchal rigidity, myalgia, and fatigue. The severity of these symptoms depends on the patient's age; they are more severe among infants and children. The course of infection of VM varies between asymptomatic, mild, critically ill, and fatal disease. Morbidities and mortalities of VM are dependent on the early recognition and treatment of the disease. There were no significant distinctions in the clinical phenotypes and symptoms between VM and meningitis due to other causative agents. To date, the pathophysiological mechanisms of VM are unclear. In this scientific communication, a descriptive review was performed to give an overview of pediatric viral meningitis (PVM). PVM may occasionally result in severe neurological consequences such as mental retardation and death. Clinical examinations, including Kernig's, Brudzinski's, and nuchal rigidity signs, were attempted to determine the clinical course of PVM with various success rates revealed. Some epidemiological correlates of PVM were adequately reviewed and presented in this report. They were seen depending mainly on the causative virus. The abnormal cytological and biochemical features of PVM were also discussed and showed potentials to distinguish PVM from pediatric bacterial meningitis (PBM). The pathological, developmental, behavioral, and neuropsychological complications of PVM were also presented. All the previously utilized techniques for the etiological diagnosis of PVM which include virology, serology, biochemistry, and radiology, were presented and discussed to determine their efficiencies and limitations. Finally, molecular testing, mainly PCR, was introduced and showed 100% sensitivity rates.
PubMed: 35783317
DOI: 10.3389/fped.2022.923125 -
PloS One 2021Meningitis is a medical emergency with permanent disabilities and high mortality worldwide. We aimed to determine causative microorganisms and potential markers for...
OBJECTIVES
Meningitis is a medical emergency with permanent disabilities and high mortality worldwide. We aimed to determine causative microorganisms and potential markers for differentiation between bacterial and viral meningitis.
METHODOLOGY
Adult patients with acute meningitis were subjected to lumber puncture. Cerebrospinal fluid (CSF) microorganisms were identified using Real-time PCR. PCT and CRP levels, peripheral and CSF-leucocyte count, CSF-protein and CSF-glucose levels were assessed.
RESULTS
Out of 80 patients, infectious meningitis was confirmed in 75 cases; 38 cases were bacterial meningitis, 34 cases were viral meningitis and three cases were mixed infection. Higher PCT, peripheral and CSF-leukocytosis, higher CSF-protein and lower CSF-glucose levels were more significant in bacterial than viral meningitis patients. Neisseria meningitides was the most frequent bacteria and varicella-zoster virus was the most common virus. Using ROC analyses, serum PCT and CSF-parameters can discriminate bacterial from viral meningitis. Combined ROC analyses of PCT and CSF-protein significantly improved the effectiveness in predicting bacterial meningitis (AUC of 0.998, 100%sensitivity and 97.1%specificity) than each parameter alone (AUC of 0.951 for PCT and 0.996 for CSF-protein).
CONCLUSION
CSF-protein and serum PCT are considered as potential markers for differentiating bacterial from viral meningitis and their combination improved their predictive accuracy to bacterial meningitis.
Topics: Adult; Biomarkers; Diagnosis, Differential; Female; Humans; Male; Meningitis, Bacterial; Meningitis, Viral
PubMed: 34115780
DOI: 10.1371/journal.pone.0251518 -
Cureus Mar 2022The infection with SARS-CoV-2 is primarily associated with respiratory symptoms. Since its appearance, several neurological symptoms have been reported, most commonly...
The infection with SARS-CoV-2 is primarily associated with respiratory symptoms. Since its appearance, several neurological symptoms have been reported, most commonly headache and anosmia, as well as less frequent complications such as COVID-19-associated encephalitis and meningitis. In this case report, we describe two patients, who were 49- and 50-year-old infected with SARS-CoV-2, who presented to the emergency department with altered mental status and behavioral changes. A diagnosis of acute meningoencephalitis associated with COVID-19 was considered, and both patients had a good response to corticosteroid treatment.
PubMed: 35342667
DOI: 10.7759/cureus.23243 -
Therapie 2020Drug-induced aseptic meningitis (DIAM) is potentially insufficiently considered by clinician, being of rare etiology, with there being no previously published exhaustive... (Review)
Review
BACKGROUND
Drug-induced aseptic meningitis (DIAM) is potentially insufficiently considered by clinician, being of rare etiology, with there being no previously published exhaustive study describing its clinical and biological features.
METHODS
Two independent academic clinicians searched all the case reports of DIAM from 1995 until 15 April, 2017. The search was limited to studies performed in humans, published in English or French. Clinical and biological data of subjects were compared with those of patients with documented viral meningitis.
RESULTS
One hundred and fifty-one case reports fulfilled our inclusion criteria. Non-steroidal anti-inflammatory drugs were the commonest drug cause of AM n=49, followed by antibiotics n=46, biotherapy n=19 and finally immunomodulators n=15. The clinical and biological presentation of DIAM varies according to the causative etiological drug, especially with respect to the interval between exposure and presentation and cerebrospinal fluid (CSF) pleiocytosis. Clinical symptoms associated with meningitis were more prevalent in viral meningitis than in DIAM, except for fever and signs of encephalitis. Cerebrospinal fluid examination in DIAM reveals an increased CSF white cell count and an increased proportion of neutrophils and protein, compared with viral meningitis.
DISCUSSION
We present an extensive review of the DIAM case reports, and highlight their clinical and biological characteristics according to the drugs involved. While comparing for the first time their characteristics with those of viral meningitis, this review hopes in facilitate earlier diagnosis and management of DIAM in clinical practice.
Topics: Anti-Bacterial Agents; Anti-Inflammatory Agents, Non-Steroidal; Humans; Meningitis, Aseptic; Meningitis, Viral; Pharmaceutical Preparations
PubMed: 33187718
DOI: 10.1016/j.therap.2020.03.001 -
Cureus May 2023Benign recurrent aseptic meningitis is a rare condition characterized by recurring, self-limited episodes of aseptic meningitis. Meningeal irritation typically occurs...
Benign recurrent aseptic meningitis is a rare condition characterized by recurring, self-limited episodes of aseptic meningitis. Meningeal irritation typically occurs first, accompanied by fever and mononuclear cell pleocytosis. The diagnosis is only made after other known causes of lymphocytic meningitis have been excluded. Resolution typically occurs within two to seven days without residual neurological deficit. Aseptic meningitis is most frequently caused by viruses; Mollaret's meningitis has been linked to the herpes simplex virus 2 (HSV 2). It is unclear if prophylactic medication is indicated for these patients. We describe a patient who was experiencing her seventh episode of aseptic meningitis.
PubMed: 37284381
DOI: 10.7759/cureus.38559 -
Journal of Clinical Virology : the... Jun 2022Enteroviruses (EV) are the most frequent cause of acute meningitis worldwide, and regularly responsible for outbreaks. Human parechoviruses (PeV) are associated with...
BACKGROUND
Enteroviruses (EV) are the most frequent cause of acute meningitis worldwide, and regularly responsible for outbreaks. Human parechoviruses (PeV) are associated with sepsis and meningitis in young infants. In Mayotte, a French department located in the Comoros archipelago, EVs and PeVs are not part of the routine screening of cerebrospinal fluids (CSFs) of patients with meningitis. Consequently, no data is available on EV or PeV epidemiology.
AIM
Assess the need for EV and PeV diagnosis in Mayotte.
METHODS
CSFs collected between March and June 2019 from patients addressed to Mayotte Hospital were retrospectively screened for EV and PeV by PCR. If positive for EV, genotyping was attempted.
RESULTS
EV and PeV RT-PCR were performed on 122/263 (46%) CSFs (45 adults, 77 children). EV meningitis was diagnosed in 16/77 children (21%) with a median age of 32 days (8-62). One 30-days-aged infant presented with a PeV infection. Fever was reported in 94% cases (16/17), followed by gastrointestinal disorders in 29% cases (5/17). EV genotyping achieved identification for 10/16 (63%) EV-positive samples. Four different EV types were identified: Echovirus 16 (E-16, n = 6), EV-B100 (n = 2), and E-14 and E-18 (n = 1, each).
CONCLUSION
EV/PeV prevalence of 14% highlights the importance of implementing this diagnosis which can impact duration of hospitalization and administration of antibiotics thus reducing risk of antimicrobial resistance. Surveillance of circulating EV types is needed to understand the range of enteroviruses detected in meningitis cases in places that have been underrepresented in enterovirus surveillance studies.
Topics: Adult; Aged; Child; Comoros; Enterovirus; Enterovirus Infections; Humans; Infant; Meningitis, Viral; Parechovirus; Picornaviridae Infections; Retrospective Studies
PubMed: 35398601
DOI: 10.1016/j.jcv.2022.105154