What is lumbar puncture examination _ meaning _ application

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What is lumbar puncture examination

The common name of lumbar puncture, it is a common examination method in medicine. It is to extract a certain amount of liquid called ‘cerebrospinal fluid’ from the vertebral canal of the patient (dragon bone) for clinical use.

Scope of application:

The diagnosis and diagnosis of central nervous system inflammatory diseases include purulent meningitis, tuberculous meningitis, viral meningitis, fungal meningitis, and B encephalitis, etc.;

The diagnosis and diagnosis of brain cranial injury accidents include cerebral hemorrhage, cerebral infarction, subarachnoid hemorrhage, etc.;

Central nervous system diseases require intraspinal administration of drugs (such as diagnosing meningitis sepsis and treating meningitis sepsis by intraspinal injection of chemotherapy drugs), anesthesia, and lumbar puncture myelography;

Demyelinating disease

Lumbar puncture examination lumbar puncture examination

Lumbar puncture, also known as lumbar puncture, is a method of measuring intracranial pressure by puncturing the intervertebral disc space and collecting brain tissue for examination. Before the advent of CT, the diagnosis of cerebrovascular diseases mainly required lumbar puncture. Since the widespread use of CT, although lumbar puncture examination has decreased relatively, CT examination cannot completely replace lumbar puncture examination. Some cerebrovascular diseases still need to be diagnosed and diagnosed through lumbar puncture examination. When patients have symptoms such as headache, vomiting, neck stiffness, etc., whether it is subarachnoid hemorrhage or meningitis? CT examination is helpless for diagnosis, while lumbar puncture examination can be clear at a glance. In addition, if diagnosed as subarachnoid hemorrhage, releasing 5-10ml of brain tissue during lumbar puncture also has a certain therapeutic effect, which can not only alleviate headache but also prevent complications such as subarachnoid adhesions. In addition, lumbar puncture also has the functions of immediate measurement of intracranial pressure and examination of brain tissue composition.

Lumbar puncture examination, although still plays a very critical role in clinical medicine, still some patients and their relatives have psychological fear of lumbar puncture, mainly worrying about the damage to the spinal nerves and the impact on physical and mental health. In fact, this concern is unnecessary. Since the spinal nerves have a certain length within the vertebral canal. Above, they are connected to the medulla at the foramen magnum, and below, they present as a conical shape at the outer edge of the first intervertebral disc, known as the spinal nerve cone. Many马尾样 nerves are separated out, called马尾. There is no spinal nerve below the first intervertebral disc in adults, it is just a relatively spacious cerebrospinal fluid space, inside which there are many马尾 nerves. Lumbar puncture examination usually takes place at the 3-4 or 4-5 intervertebral disc spaces, so it is not easy to damage the spinal nerves. In addition, the brain tissue contains a small amount of sugar, fluoride, protein, and white blood cells, most of which is water, and it circulates rapidly. The total volume of brain tissue in adults is 120-150ml, its production rate is 400-500ml in 24 hours, and it is updated 4-5 times a day, that is, the brain tissue is continuously produced and absorbed, constantly in a state of innovation, to maintain a stable balance. Therefore, when 2-4ml of brain tissue is taken during lumbar puncture, it can be replenished in 10 minutes and will not affect the human body. Therefore, if the condition requires lumbar puncture examination, patients and their relatives should cooperate well with the doctor.