Community-acquired Escherichia coli meningitis with ventriculitis in an adult-a rare case report

An Unusual Case of Escherichia Coli Meningitis in an Immunocompetent Adult

Spontaneous meningitis caused by Gram-negative bacilli is rare in adults. It typically occurs after a neurosurgical procedure or head injury but may also be related to the presence of a neurosurgical device, cerebrospinal fluid (CSF) leak syndrome, or seen in immunosuppressed patients. Escherichia coli (E. coli) is the leading cause of Gram-negative bacilli meningitis. We describe the case of a 47-year-old man who was hospitalized for spontaneous, community-acquired E. coli meningitis, which is unusual to see in an immunocompetent adult. CSF analysis was consistent with bacterial meningitis; his blood culture was positive for E. coli. Within 24 hours of initiation of antibiotics, his status improved.

Bacterial meningitis in Africa

Bacterial meningitis differs globally, and the incidence and case fatality rates vary by region, country, pathogen, and age group; being a life-threatening disease with a high case fatality rate and long-term complications in low-income countries. Africa has the most significant prevalence of bacterial meningitis illness, and the outbreaks typically vary with the season and the geographic location, with a high incidence in the meningitis belt of the sub-Saharan area from Senegal to Ethiopia. Streptococcus pneumoniae (pneumococcus) and Neisseria meningitidis (meningococcus) are the main etiological agents of bacterial meningitis in adults and children above the age of one. Streptococcus agalactiae (group B Streptococcus), Escherichia coli, and Staphylococcus aureus are neonatal meningitis's most common causal agents. Despite efforts to vaccinate against the most common causes of bacterial neuro-infections, bacterial meningitis remains a significant cause of mortality and morbidity in Africa, with children below 5 years bearing the heaviest disease burden. The factors attributed to this continued high disease burden include poor infrastructure, continued war, instability, and difficulty in diagnosis of bacterial neuro-infections leading to delay in treatment and hence high morbidity. Despite having the highest disease burden, there is a paucity of African data on bacterial meningitis. In this article, we discuss the common etiologies of bacterial neuroinfectious diseases, diagnosis and the interplay between microorganisms and the immune system, and the value of neuroimmune changes in diagnostics and therapeutics.

A Rare Case of Primary Pyogenic Ventriculitis in a Patient with Community-acquired Meningitis

Pyogenic ventriculitis is defined as the inflammation of the ependymal lining of the cerebral ventricular system. It is characterized by the presence of suppurative fluid in the ventricles. It mostly affects neonates and children but rarely can be seen in adult population. In adults, it usually affects the elderly population. It is usually healthcare associated and occurs secondary to ventriculoperitoneal shunt, external ventricular drain, intrathecal drug delivery, brain stimulation devices, and neurosurgical intervention. Primary pyogenic ventriculitis though rare should be considered as one of the differential diagnoses in patients who do not improve despite an appropriate antibiotic regimen in bacterial meningitis. Our case report on primary pyogenic ventriculitis secondary to community-acquired bacterial meningitis in an elderly diabetic male patient illustrates the importance of utilization of multiplex polymerase chain reaction (PCR), repeated neuroimaging, and prolonged course of antibiotics for the successful management and outcome.

How to cite this article

Maheshwarappa HM, Rai AV. A Rare Case of Primary Pyogenic Ventriculitis in a Patient with Community-acquired Meningitis. Indian J Crit Care Med 2022;26(7):874-876.

Community-Acquired Meningitis Complicated by Pyogenic Ventriculitis: A Case Report

Ventriculitis is the inflammation of the ependymal lining of the ventricles in the brain which usually occurs as a complication of meningitis, intraventricular devices, intracranial surgery, or brain abscess. Common clinical features include fever, altered mental status, headache, and neck rigidity. Some commonly associated organisms are Streptococcus, gram-negative Bacillus, Staphylococcus, and Meningococcus. Here, we report the case of a 57-year-old female presenting with fever, headache, and altered mental status, along with positive physical examination findings of Kernig’s and Brudzinski’s signs without any focal neurological deficits. Cerebrospinal fluid analysis findings were consistent with bacterial infection with neutrophilic leukocytosis, high protein, and low glucose. The blood culture was positive for Streptococcus pneumoniae. Magnetic resonance imaging was negative for enhancement of the meninges but showed fluid-filled layering in the ventricles consistent with pyogenic ventriculitis. The patient improved clinically within three days of initiation of empiric antibiotics.

Recurrent primary pyogenic ventriculitis in an adult woman: a case report

Background

Recurrent primary pyogenic ventriculitis has not been reported previously. We present a unique case of recurrent primary pyogenic ventriculitis in an adult. And we believe that our study makes a significant contribution to the literature.

Case presentation

An adult woman with uncontrolled diabetes experienced two episodes of pyogenic ventriculitis caused by Escherichia coli over 4 years. She had typical imaging features, and the source of infection was undetermined. After antibiotic treatment, she recovered fully.

Conclusions

Early recognition and therapy will improve patient prognosis.

Septic shock due to Escherichia coli meningoencephalitis treated with immunoglobulin-M-enriched immunoglobulin preparation as adjuvant therapy: a case report

BACKGROUND

Gram-negative bacteria are an uncommon etiology of spontaneous community-acquired adult meningitis and meningoencephalitis. Escherichia coli is a Gram-negative bacterium that is normally present in the intestinal microbial pool. Some Escherichia coli strains can cause diseases in humans and animals, with both intestinal and extraintestinal manifestations (extraintestinal pathogenic Escherichia coli) such as urinary tract infections, bacteremia with sepsis, and, more rarely, meningitis. Meningitis continues to be an important cause of mortality throughout the world, despite progress in antimicrobial chemotherapy and supportive therapy. The mortality rate fluctuates between 15% and 40%, and about 50% of the survivors report neurological sequelae. The majority of Escherichia coli meningitis cases develop as a result of hematogenous spread, with higher degrees of bacteremia also being related to worse prognosis. Cases presenting with impaired consciousness (that is, coma) are also reported to have poorer outcomes.

CASE PRESENTATION

We describe the case of a 48-year-old caucasian woman with meningoencephalitis, with a marked alteration of consciousness on admission, and septic shock secondary to pyelonephritis caused by Escherichia coli, treated with targeted antimicrobial therapy and immunoglobulin-M-enriched immunoglobulin (Pentaglobin) preparation as adjuvant therapy.

CONCLUSION

Despite the dramatic presentation of the patient on admission, the conflicting data on the use of immunoglobulins in septic shock, and the lack of evidence regarding their use in adult Escherichia coli meningoencephalitis, we obtained a remarkable improvement of her clinical condition, accompanied by partial resolution of her neurological deficits.

Escherichia coli: a rare cause of meningitis in immuno-competent adult

A 35-year-old male of Asian ethnicity presented with complaints of high-grade fever, severe headache, vomiting, generalized seizures, deteriorated conscious level and neck stiffness. After all baseline workup Computed Tomography (CT) scan of the brain was done, which turned out to be unremarkable. CT scan was then followed by lumbar puncture (LP) and Cerebrospinal fluid (CSF) detailed report was sent, which was highly suggestive of bacterial meningitis with the predominance of polymorphonuclear leukocytes. Later on, CSF culture and sensitivity report showed growth of Escherichia coli, which is one of the rare causes of meningitis in immunocompetent adults without any history of craniocerebral trauma, neurosurgical intervention, urinary or gastrointestinal tract infections, and an immunocompromised state. Abbreviations: CSF: Cerebrospinal fluid; LP: Lumbar puncture; CT: Computerized tomography; E-coli: Escherichia coli; GCS: Glasgow coma scale; COPD: Chronic Obstructive Pulmonary Disease; HTLV1: Human T-Lymphotropic virus -1; PCR: Polymerase chain reaction.

When a Stroke is not Just a Stroke: Escherichia Coli Meningitis with Ventriculitis and Vasculitis: A Case Report

INTRODUCTION

Community-acquired Escherichia coli ventriculitis is considered a rare condition. Central nervous system (CNS) infection due to gram-negative bacilli is usually associated with previous neurosurgical interventions. The recent publication of cases of Escherichia coli meningitis and ventriculitis suggests its prevalence may be underestimated by the literature.

CASE PRESENTATION

A case of community-acquired Escherichia coli CNS infection on a 58 year old patient presenting with altered consciousness but without neck stiffness, nor significant past medical history is reported. Imaging and lumbar puncture findings suggested a complex case of meningitis with associated ventriculitis and vasculitis. Escherichia coli was later identified in cultures. Subsequent multi-organ support in Intensive Care was required. The patient was treated with a prolonged course of intravenous antimicrobials guided by microbiology, resulting in some neurological recovery. The main challenges encountered in the management of the patient were the lack of clear recommendations on the duration of treatment and the potential development of multi-resistant organisms.

CONCLUSION

Bacterial central nervous system infections can have an atypical presentation, and an increasing number of cases of community-acquired ventriculitis have been reported. Early consideration should be given to use magnetic resonance imaging to help guide treatment. A long course of antibiotics is often required for these patients; however, the optimal duration for antimicrobial treatment is not well defined.