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People with cranial CSF leaks, the rarer form, have a 10% risk of developing meningitis per year. [55] If cranial leaks last more than seven days, the chances of developing meningitis are significantly higher. [55] Spinal CSF leaks cannot result in meningitis due to the sterile conditions of the leak site. [24]
Occasionally a temporary drain is placed for 24-48 hours post op. In recurrent cases a craniotomy may be performed to attempt to locate the location of the CSF Leak. In certain cases a shunt can be placed for additional drainage. Great caution is used when choosing to look for the CSF leak due to them generally being difficult to spot.
A tear between the dura and the arachnoid membranes, called a CSF fistula, can cause CSF to leak out of the subarachnoid space into the subdural space; this is called a subdural hygroma. [1] CSF can also leak from the nose and the ear. These tears can also allow bacteria into the cavity, potentially causing infections such as meningitis.
Targeted EBP is performed under real-time fluoroscopy if the location of the CSF leak is known. [9] This fluoroscopic approach is standard, [15] but with cases of SIH two-site blind injection has similar outcomes. No randomized clinical trials have been conducted for this due to the rarity of SIH. [1] CT scanning can also be used. [9]
Traumatic CSF rhinorrhoea is the most common type of CSF rhinorrhoea. [1] It may be due to severe head injury, or from complications from neurosurgery. [1] Spontaneous CSF rhinorrhoea is the most common acquired defect in the skull base bones (anterior cranial fossa) causing spontaneous nasal liquorrhea.
A headache that is persistent despite a long period of bedrest and occurs only when sitting up may be indicative of a CSF leak from the lumbar puncture site. It can be treated by more bedrest, or by an epidural blood patch , where the person's own blood is injected back into the site of leakage to cause a clot to form and seal off the leak.
A cerebrospinal fluid (CSF) leak occurs in about 20% of cases and may result in fluid leaking from the nose or ear. [1] Meningitis occurs in about 14% of cases. [2] Other complications include injuries to the cranial nerves or blood vessels. [1] A basilar skull fracture typically requires a significant degree of trauma to occur. [1]
1 Spontaneous cerebrospinal fluid leak. 2 Comments from delldot ∇. Toggle Comments from delldot ∇. subsection. 2.1 Second installment. 3 Third installment.