EEA but not TTEA has a short-term (3 months) negative impact on patient's olfaction and mucociliary clearance. Patients should be informed about smell loss as a consequence of skull base surgery to prevent legal claims. Likewise, further research and some modifications on reconstruction flaps are encouraged to avoid damaging the olfactory neuroepithelium.
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Alobid et al. (2012) studied this question.
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