Aseptic meningitis
Meningitis - an inflammation of the meninges
may be infectious (viral) the nature and non-infectious - to develop, for example, against the background of a tumor or an injury to the brain or spinal cord. This type of meningitis has similarities with other types of meningitis, and unlike them. As a rule, it also gives fewer complications than purulent meningitis, bacterial, fungal or protozoal origin.
Causes
aseptic meningitis
Aseptic meningitis - an inflammation of the meninges, which can be caused by both infectious and non-infectious factors. Because infectious agents cause aseptic meningitis can be viruses. Most often, it enteroviruses, arboviruses (eg, tick-borne encephalitis, Crimean hemorrhagic fever), HIV, herpes simplex virus type-2. Less common cause of aseptic meningitis herpes simplex virus type 1, lymphocytic choriomeningitis virus, mumps virus. Very rarely the cause of aseptic meningitis are adenovirus, cytomegalovirus
Cytomegalovirus - what is its danger?
, Epstein-Barr virus (causes mononucleosis), influenza viruses A and B, measles, parainfluenza, rubella, shingles.
At times, the incidence is distributed as follows: in the winter and spring of mumps meningitis are more common in summer and autumn - enterovirus and arbovirus, autumn and winter - caused by lymphocytic choriomeningitis virus. Meningitis caused by HIV and herpes simplex virus
Herpes simplex - in fact, not so simple
can grow year-round.
Aseptic meningitis infectious origin is most often associated with brain tumors. But it can also develop after the use of certain medications (eg, nonsteroidal anti-inflammatory drugs, gammagolobulina), against the backdrop of some systemic diseases (for example, against the background of systemic vasculitis, sarcoidosis).
Aseptic meningitis is viral
Aseptic meningitis is viral, in most cases a benign and does not leave behind the effects. The most common Enterovirus meningitis
Enterovirus meningitis - the most common type
Which occurs acutely, with fever, headache, severe meningeal symptoms, but as a rule, does not leave consequences.
Much less common in our country mumps meningitis, which is also a feature of the acute course with fever and headaches, but when it come to the fore not meningeal and cerebral symptoms - weakness, dizziness, and sometimes - seizures.
When HIV aseptic meningitis, usually develops at the time the blood of the patient-specific antibodies to the virus. Manifestations of this meningitis are often unspoken nature of temperature may rise as insignificant and very, headaches, meningeal symptoms, sometimes the defeat of the cranial nerves, confusion and sleepiness. Typically, such a meningitis does not require any treatment other than the treatment of HIV infection and painkillers.
Aseptic meningitis is a non-infectious
Most often, aseptic meningitis develops in the brain tumors. The first aseptic meningitis in the brain tumor has been described in the 30s of the last century. Today, found that aseptic meningitis - not uncommon, it occurs in the postoperative period, not only after the removal of brain tumors, but also in the surgical treatment of malformations and other diseases of the central nervous system.
Aseptic meningitis is an inflammatory response to surgical trauma of the brain. This reaction occurs in all patients after a neurosurgical intervention (removal of a brain tumor), which is confirmed by immunological studies.
Manifested a meningitis high fever headache, meningeal symptoms (for example, a symptom of stiff neck when the patient can not bend his head) and the lack of growth of focal neurologic symptoms (paresis, paralysis, sensory disturbances).
Diagnostics
For all types of aseptic meningitis in patients' blood shows signs of inflammation: increased number of white blood cells (leukocytosis, especially the increased number of lymphocytes) and accelerated ESR. In the cerebrospinal fluid revealed lymphocytic pleocytosis (an increase in the number of cellular elements with a predominance of lymphocytes among them), high protein content, the negative results of bacteriological examination of the spinal fluid, but the PCR method it is possible to detect viruses.
Treatment
Treatment of symptomatic aseptic meningitis. If the condition of patients with severe (for example, enterovirus meningitis), for its ease of doing a spinal tap - removal of the liquor reduces intracranial pressure and improves the patient's condition.
Assign also diuretics administered detoxification solutions. If meningitis caused by herpes infection, prescribed antiviral drugs (acyclovir, valacyclovir, Famvir), antipyretics and analgesics.
Forecast favorable aseptic meningitis.
Galina Romanenko