Viral MeningitisViral infection is the commonest cause of meningitis.
|2.||Arbovirus (e.g.yellow fever,sand fly fever).|
|3.||Herpes simplex virus.|
|4.||Mumps virus,Influenza virus.|
Clinical features of Viral meningitis:
|A)||Acute onset of headache.|
|B)||Irritability and rapid development of meningeal irritation with-highpyrexia (revert to normal in 5-7 days)|
|C)||But focal neurological signs are uncommon.|
|1.||CSF examination (See table)|
Treatment/Management:Treatment must be started without waiting for confirmation(culture report).
|1.||There is no specific treatment,usually benign & self-limiting.|
|2.||Symptomatic treatment in a quiet environment.|
|3.||Recovery usually occurs within days.|
Table:CSF findings in different meningitis.
|Cell count/cmm||Lymphocytes 10-2000|
Complications of meningitis:
|*||Causing obstructive hydrocephalus.|
|*||Development of cranial nerve palsy.|
|Acute renal failure.|
|*||Development of water-house.|
|*||Friedrickson's syndrome in meningitis.|
|Reference:Davidson's Principles and Practice of medicine,21st edition,page:1209-1210.|