Clinical profile, etiology and outcomes of meningoencephalitis in a tertiary care centre in Kerala
DOI:
https://doi.org/10.18203/2394-6040.ijcmph20261403Keywords:
Diagnostics, Epidemiology, Etiology, Meningoencephalitis, Outcomes, Public healthAbstract
Background: Meningoencephalitis remains a serious public-health issue in many low- and middle-income countries due to its potential for rapid neurological deterioration and preventable mortality. Limited diagnostic tools at peripheral hospitals often lead to delayed referral and empirical treatment. Understanding the regional etiology and identifying predictors of poor outcomes are essential for early case recognition, prioritisation of high-risk patients and strengthening surveillance and diagnostic pathways.
Methods: A prospective observational study was conducted among 129 patients (>13 years) admitted with meningoencephalitis to Government Medical College, Kozhikode from January 2019 to June 2020. Clinical features and CSF serological/molecular diagnostics were analysed. Patient outcomes at discharge were recorded and compared across etiological categories.
Results: Among 129 patients, 56% were male and 61% were aged <40 years. Common symptoms were fever (96%), headache (86%), vomiting (64%), altered sensorium (53%) and seizures (34%). Etiology was identified in 39.5%, with viral meningoencephalitis most common; HSV-1 was the leading viral agent. ICU care was required in 24.8% and ventilatory support in 7%. Overall, 83.7% recovered completely, 6.2% had sequelae and 10.1% died. Mortality was highest in tuberculous and fungal meningitis. Seizures, low GCS and delayed presentation were associated with poor outcomes.
Conclusions: Viral meningoencephalitis was the leading etiology, while tuberculous and fungal infections contributed disproportionately to mortality. Improved access to molecular diagnostics and early recognition of high-risk clinical indicators could reduce preventable deaths. Strengthening surveillance and referral pathways is essential to improving neurological outcomes in the community.
References
Venkatesan A, Michael BD, Probasco JC, Geocadin RG, Solomon T. Acute encephalitis in immunocompetent adults. Lancet. 2019;393(10172):702–16.
Oordt-Speets AM, Bolijn R, Van Hoorn RC, Bhavsar A, Kyaw MH. Global etiology of bacterial meningitis: A systematic review and meta-analysis. Borrow R, editor. Plos One. 2018;13(6):198772.
Van De Beek D, De Gans J, Tunkel AR, Wijdicks EFM. Community-Acquired Bacterial Meningitis in Adults. N Engl J Med. 2006;354(1):44–53.
Rathore SK, Dwibedi B, Kar SK, Dixit S, Sabat J, Panda M. Viral aetiology and clinico-epidemiological features of acute encephalitis syndrome in eastern India. Epidemiol Infect. 2014;142(12):2514–21.
Nowak DA, Boehmer R, Fuchs H. A retrospective clinical, laboratory and outcome analysis in 43 cases of acute aseptic meningitis. Eur J Neurol. 2003;10(3):271–80.
Roy A, Mandal K, Sen S, Bag T. Study of acute viral meningoencephalitis in children in sub-Himalayan Tarai region: Clinico-epidemiological, etiological and imaging profile. Indian J Child Health. 2015;2(4):177–81.
Kadambari S, Okike I, Ribeiro S, Ramsay ME, Heath PT, Sharland M, et al. Seven-fold increase in viral meningo-encephalitis reports in England and Wales during 2004–2013. J Infect. 2014;69(4):326–32.
Shetty S, Chintamani G, Krupashree G. Clinico-aetiological Profile of Meningoencephalitis: A Prospective Observational Study in a Tertiary Care Centre, Hubli, Karnataka, India. J Clin Diagn Res. 2022;4:875.
Hasbun R, Rosenthal N, Balada-Llasat JM, Chung J, Duff S, Bozzette S, et al. Epidemiology of Meningitis and Encephalitis in the United States, 2011–2014. Clin Infect Dis. 2017;65(3):359–63.
Patel S, Jhala P, Sharma H. A Study of the Etiology, Clinical Profile and Diagnosis of Various Types of Central Nervous System Infections in a Tertiary Care Center. Cureus. 2024;5:860.
Granerod J, Ambrose HE, Davies NW, Clewley JP, Walsh AL, Morgan D, et al. Causes of encephalitis and differences in their clinical presentations in England: a multicentre, population-based prospective study. Lancet Infect Dis. 2010;10(12):835–44.
Joshi R, Mishra PK, Joshi D, Santhosh SR, Parida MM, Desikan P, et al. Clinical presentation, etiology and survival in adult acute encephalitis syndrome in rural Central India. Clin Neurol Neurosurg. 2013;115(9):1753–61.