Effects of head injury on olfaction and taste.
Level 5 - mechanism / opinion, no new human data
Narrative clinical review without systematic search or primary data synthesis
PubMed 15563909 · doi:10.1016/j.otc.2004.06.005
What was done
Narrative review describing the mechanisms, clinical evaluation, radiographic imaging, testing modalities, and management strategies for olfactory and gustatory dysfunction following traumatic head injury from events such as motor vehicle accidents, falls, or assaults.
What was found
No quantitative data or statistical comparisons were reported in the abstract. The review notes that posttraumatic gustatory deficits are rare compared to olfactory dysfunction and that spontaneous recovery of neurosensory deficits may occur up to 12 to 18 months following trauma.
Why it matters
It outlines a clinical diagnostic and management framework for post-injury chemosensory loss, highlighting the need to rule out treatable conductive causes, detect potential malingering in medicolegal settings, and counsel patients on safety.
Limits
As a narrative review, it lacks a systematic search methodology, primary patient data, sample size metrics, or quantitative outcome data.
Cited by
- supports Head trauma can shear the olfactory nerve axons as they pass through the cribriform plate, resulting in anosmia.