CSF fistula location

Cerebrospinal fluid pupil positioning has a great effect on the diagnosis and treatment of cerebrospinal fluid rhinorrhea. The cerebrospinal fluid leakage is caused by the skull fracture while tearing the dura mater and the arachnoid membrane, so that the cerebrospinal fluid flows out through the nasal cavity, the external auditory canal or the open wound through the fracture of the fracture joint, causing the cranial cavity to communicate with the outside world, forming a leak hole, and the air can also be retrograde by the pupil. Invade into the skull and cause a gas skull. If cerebrospinal fluid leakage directly comes from ventricle penetrating injury, there is often a large amount of cerebrospinal fluid loss, not only the general condition is low, but also often lead to severe meningitis and encephalitis, especially in children, it is necessary to debride and repair in time. Cerebrospinal fluid flows out through the nasal cavity, ear canal or open wound, which is a serious complication of craniocerebral injury. Basic Information Specialist classification: growth and development check classification: cerebrospinal fluid examination Applicable gender: whether men and women apply fasting: not fasting Tips: Note the method of marking in the spinal canal, it is not easy to distinguish the pupil site, and there is a certain risk. Normal value The cerebrospinal fluid did not flow out into the nasal cavity. Clinical significance Abnormal results: Observing the cerebrospinal fluid can flow from the nasal top, the nasal passages, the butterfly crypt, the eustachian tube, etc. into the nasal cavity, so that the bloody liquid flows out from the nostrils, and the center of the trace is red and the periphery is clear. Need to check the crowd: patients with cerebrospinal fluid rhinorrhea. Precautions In the spinal canal attention mark method, it is difficult to distinguish the pupil site, and there is a certain risk. Inspection process That is, the nasal endoscope is inserted into the anterior nasal orifice, and the five parts of the anterior and posterior portions, the butterfly crypt, the middle nasal passage, and the eustachian tube are carefully observed. When examining each site, the bilateral internal jugular veins can be compressed to increase the intracranial pressure to see where the cerebrospinal fluid flows into the nasal cavity. For example, the brain fluid comes from the nasal top, the pupil is in the ethmoid sieve; from the middle nasal passage, the pupil is in the frontal sinus; the pupil from the butterfly sieve crypt is in the sphenoid sinus; from the eustachian tube, the pupil is in the tympanic cavity. Or mastoid. Not suitable for the crowd There are no special taboos. Adverse reactions and risks No obvious complications and harms.