What is Bell's Palsy? Causes, Symptoms, Pathophysiology, & Treatments

A real clinical case discussion about Bell’s Palsy (Idiopathic Facial Nerve Palsy) to educate the patients suffering from the disease and medical students who are studying for their exams (USMLE & NCLEX). As usual, I start with the symptoms and signs, describe the basis (pathophysiology) of the disease, talk about the causes and finally explain the investigations and treatment options.

Chapters
00:00 Symptoms and Signs
01:04 Pathophysiology
01:56 Causes
02:29 Investigations
03:00 Treatment
03:28 Physiotherapy

Summary
a) What is Bell's Palsy? Bell’s Palsy is the commonest cause of acute facial muscle weakness.
b) Do I Have Bell's Palsy? Main symptoms are Inability to blink, drooping of the mouth, loss of taste sensation & dry mouth.
c) How to diagnose Bell's Palsy? It is a diagnosis of exclusion.
c) What causes Bell's Palsy?
d) Pathophysiology of Bell's Palsy? The facial canal is the site of the lesion in Bell’s Palsy. (damage of the Facial Nerve)
e) Investigations are typically not required, but Brain imaging, EMG studies & Serology for Lyme disease are sometimes indicated.
f) How to treat Bell's Palsy? Prednisolone(prednisone) is the drug of choice for Bell’s palsy. Antivirals are useful in some instances.
g) Physiotherapy including electric stimulation of Facial muscles is often prescribed by Doctors.

Important References:
Tinymedicine.org Article on Approach to Facial Nerve Weakness: https://tinymedicine.org/approach-to-facial-nerve-palsy/

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Видео What is Bell's Palsy? Causes, Symptoms, Pathophysiology, & Treatments канала Tiny Medicine