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A lumbar puncture can also be used to detect whether someone has Stage 1 or Stage 2 Trypanosoma brucei. Young infants commonly require lumbar puncture as a part of the routine workup for fever without a source. [8] This is due to higher rates of meningitis than in older persons.
Quincke's puncture" is a somewhat outdated eponym for lumbar puncture, [4] [5] used for the examination of the cerebrospinal fluid in numerous diseases such as meningitis and multiple sclerosis. In 1893 he described what is now known as idiopathic intracranial hypertension, which he labeled "serous meningitis". [6]
It is the space within the thecal sac which extends from below the end of the spinal cord (the conus medularis), typically at the level of the first to second lumbar vertebrae down to tapering of the dura at the level of the second sacral vertebra. The dura is pierced with a needle during a lumbar puncture (spinal tap).
A lumbar subcutaneous shunt (LS shunt) differs from these types of shunt in that the cerebrospinal fluid drains into the potential space immediately under the skin. A narrow tube is inserted into the subarachnoid space in the lumbar part of the back during a lumbar puncture.
Given normal anatomy, the intracranial pressure will be reflected as a rapidly rising pressure measured from the lumbar needle, within 10–12 seconds. If there is a stenosis in the spine, there will be a damped, delayed response in the lumbar pressure, thus a positive Queckenstedt's maneuver.
The test involves removing 30–50 ml of CSF through a lumbar puncture, after which motor and cognitive function is clinically reassessed. [1] The name "Fisher test" is after C. Miller Fisher, a Canadian neurologist working in Boston, Massachusetts, who described the test. [2]
This condition is idiopathic, meaning there is no known cause. Risk factors include being overweight or a recent increase in weight. [1] Tetracycline may also trigger the condition. [2] The diagnosis is based on symptoms and a high opening pressure found during a lumbar puncture with no specific cause found on a brain scan. [1] [2]
For those children with spinal cord diseases, lumbar puncture may damage the spinal cord due to possibility of tethered spinal cord syndrome where the spinal cord is located below than the usual spinal termination level. [3] Therefore, lumbar puncture should be done at the lowest position as possible for such cases. However, spinal cord injury ...