What is the role of CT scanning in the workup of Haemophilus influenzae infections?

Updated: Jul 02, 2019
  • Author: Joseph Adrian L Buensalido, MD; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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Answer

In meningitis, a CT scan of the head is not required routinely.

In infants and children with suspected bacterial meningitis, CT scanning is recommended before lumbar puncture in patients with the following:{ref1-INVALID REFERENCE}

  • Immunocompromise
  • History of selected CNS disease, particularly those with CSF shunts, hydrocephalus, space-occupying lesions, history of trauma, post-neurosurgery
  • Papilledema
  • Selected focal neurologic deficits, but not cranial nerve palsy of VI or VII
  • Delayed diagnostic lumbar puncture

In adults with suspected bacterial meningitis, CT scanning is recommended before lumbar puncture in patients with the following:{ref1-INVALID REFERENCE}

  • Immunocompromise
  • History of CNS disease
  • Newly onset seizure
  • Papilledema
  • Altered consciousness
  • Focal neurologic deficit
  • Delayed diagnostic lumbar puncture

In addition, a head CT scan may help identify subdural effusion.

In patients with orbital cellulitis, a CT scan of the head is useful in delineating the extent of the lesion.


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