Bell's palsy diagnostic study of choice
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]
Overview
There is no single diagnostic study of choice for the diagnosis of Bell's palsy. Bell's palsy is a diagnosis of exclusion of other causes of facial nerve palsy. The Magnetic resonance imaging (MRI) or computerized tomography (CT) may be performed to rule out other possible causes of facial nerve palsy. Laboratory studies are not routinely needed in the diagnosis of Bell’s palsy and are only recommended in patients with recurrence or absence improvement after more than 3 weeks of therapy. Blood studies for an underlying systemic disease or infection may also be considered in patients with Bell's palsy. There is no test that provides prognostic information early enough to be used for guiding treatment or prognosis.
Diagnostic Study of Choice
Study of choice
- There is no single diagnostic study of choice for the diagnosis of Bell's palsy.[1]
- Bell's palsy is a diagnosis of exclusion of other causes of facial nerve palsy.[2]
- The Magnetic resonance imaging (MRI) or computerized tomography (CT) may be performed to rule out other possible causes of facial nerve palsy.[3]
- For prognostic purpose ,Electrodiagnostic studies may help us.Electrodiagnostic studies include: EMG-NCV.[4]
- Laboratory studies are not routinely needed in the diagnosis of Bell’s palsy and are only recommended in patients with:[5]
- Recurrence
- No improvement after more than 3 weeks of therapy
- Blood studies for an underlying systemic disease or infection may also be considered in patients with Bell's palsy.
- There is no test that provides prognostic information early enough to be used for guiding treatment or prognosis.
References
- ↑ Fahimi J, Navi BB, Kamel H (2014). "Potential misdiagnoses of Bell's palsy in the emergency department". Ann Emerg Med. 63 (4): 428–34. doi:10.1016/j.annemergmed.2013.06.022. PMC 3940662. PMID 23891413.
- ↑ Holland NJ, Bernstein JM (2014). "Bell's palsy". BMJ Clin Evid. 2014. PMC 3980711. PMID 24717284.
- ↑ de Almeida JR, Guyatt GH, Sud S, Dorion J, Hill MD, Kolber MR; et al. (2014). "Management of Bell palsy: clinical practice guideline". CMAJ. 186 (12): 917–22. doi:10.1503/cmaj.131801. PMC 4150706. PMID 24934895.
- ↑ Hughes GB (1990). "Practical management of Bell's palsy". Otolaryngol Head Neck Surg. 102 (6): 658–63. doi:10.1177/019459989010200606. PMID 2115651.
- ↑ Zandian A, Osiro S, Hudson R, Ali IM, Matusz P, Tubbs SR; et al. (2014). "The neurologist's dilemma: a comprehensive clinical review of Bell's palsy, with emphasis on current management trends". Med Sci Monit. 20: 83–90. doi:10.12659/MSM.889876. PMC 3907546. PMID 24441932.