How does viral encephalitis check?

Update Date: 2022-02-16 Source: Network

summary

Viral meningitis is very rapid onset, symptoms are more terrible, appear these situations, the first is to calm down, timely and comprehensive examination, after investigating the cause of disease can be treated. Here is how to check viral encephalitis

How does viral encephalitis check?

First of all: the early stage is mainly fever, nausea, anorexia, vomiting, blurred vision, myalgia and other symptoms, followed by rapid headache, photophobia, ejection vomiting, convulsion, neck rigidity, drowsiness, mental change and other brain parenchyma involvement, and even coma, convulsion state.

Secondly: then, blood and cerebrospinal fluid examination: white blood cells were normal or slightly increased, mainly lymphocytes. C-reactive protein was not high. Normal or increased pressure, clear or slightly turbid appearance, normal or slightly increased white blood cell count, mainly lymphocytes, normal or slightly increased protein, normal sugar and chloride. No bacteria were found in CSF direct images.

Finally: neuroimaging examination: because of its higher resolution, head MRI can more accurately show the location, nature and degree of various viral encephalitis lesions than CT, such as brain edema, cerebral hemorrhage, encephalomalacia and demyelinating lesions. Diffusion weighted imaging (DWI) is more sensitive than t1w1 or t2w2 in detecting the lesions of acute viral encephalitis, and can detect the abnormal signal of viral encephalitis in the early stage. It is suggested that MRI should be reexamined 3-4 weeks after the course of disease, which is helpful to judge the long-term prognosis.

matters needing attention

Finally, according to the disease and other similar diseases for differential diagnosis, such as purulent meningitis, tuberculous meningitis, fungal meningitis and so on. Combined with the history, cerebrospinal fluid examination and etiology analysis to identify. Intracranial hemorrhage, meningeal leukemia and febrile convulsion also need to be differentiated from viral encephalitis.