Lumbar puncture
EBM Guidelines
Sep 6, 2021 • Latest change Sep 27, 2024
Table of contents
Extract
- An emergency sample of cerebrospinal fluid is most often taken when acute central nervous system infection or polyradiculitis is suspected, or to exclude subarachnoid haemorrhage (SAH) if cranial CT is normal.
- A non-emergency sample is most often taken when central nervous system inflammation, such as MS, neurosarcoidosis or neuroborreliosis, is suspected, as well as in some cases of suspected malignancy.
- Before the procedure, check the ocular fundi to make sure that the optic discs are clearly defined. This signifies normal intracranial pressure and safe puncture.
- The procedure is performed in the lumbar spine area, where there is no spinal cord but a cavity filled with cerebrospinal fluid. This, as well as the course of events, should be explained to the patient beforehand.
- Careful positioning of the patient in the correct position for the procedure is most important for successful lumbar puncture. Sufficient time should be taken for ensuring the correct position.
- Bed rest after lumbar puncture does not prevent post lumbar puncture headache. Should such headache be prolonged, it should primarily be treated by intravenous caffeine infusion in hospital.
Linked evidence summaries
- There is no evidence that routine bed rest after dural puncture is beneficial for the prevention of post-dural puncture headache (PDPH). The role of fluid supplementation in the prevention of PDPH remains unclear.A
- Caffeine appears to decrease the persistence of post-dural puncture headache and the requirement of conservative supplementary interventions.B
- Therapeutic epidural blood patch may be beneficial for post-dural puncture headache.C
Search terms
Blood Patch, Epidural, CSF, Cerebrospinal Fluid, G97.0, G97.1, Headache, Intracranial Hypertension, Lumbar puncture, Lyme Neuroborreliosis, Meningitis, Bacterial, Meningitis, Viral, Multiple Sclerosis, Neurology, Papilledema, Post-Dural Puncture Headache, Spinal Puncture, Subarachnoid Hemorrhage, Syphilis, TPHA, cerebellar herniation, cerebrospinal fluid cytology