Real time optic nerve sheath diameter measurement during lumbar puncture

Am J Emerg Med. 2018 Apr;36(4):736.e1-736.e3. doi: 10.1016/j.ajem.2018.01.037. Epub 2018 Jan 10.


Measurement of optic nerve sheath diameter (ONSD) using point of care ultrasound has been used to indirectly assess the intracranial pressure (ICP) particularly in conditions where it is raised. Direct pressure measurements using probes reaching the ventricle system correlated with ONSD using ultrasound. Attempts were made to measure the ONSD pre and post lumbar puncture (LP) after draining cerebrospinal fluid (CSF) as well as post ventricular shunt placement. We report ONSD measurement and demonstrate dynamic changes during LP in a patient with known idiopathic intracranial hypertension (IIH).

Publication types

  • Case Reports

MeSH terms

  • Aged
  • Cerebrospinal Fluid
  • Drainage / methods*
  • Female
  • Humans
  • Intracranial Pressure*
  • Optic Nerve / anatomy & histology*
  • Optic Nerve / diagnostic imaging*
  • Point-of-Care Testing*
  • Pseudotumor Cerebri / physiopathology*
  • Pseudotumor Cerebri / therapy*
  • Spinal Puncture*
  • Ultrasonography