Table 6.

Summary of reported patients, who suffered from cranial nerve involvement (other than Bell’s palsy) after vaccination against SARS-CoV-2

Reference	Neurological complication	Country	Age/sex	Vaccine type	Duration after vaccination	Clinical features	Neuroimaging	Treatment	Outcome
Konstantinidis et al. [99] Report of 2 patients	Olfactory dysfunction	Greece	Both female	Pfizer-BioNTech BNT162b2	3 and 5 days after second dose	Hyposmia after their second dose	None	Olfactory training	Improved
Keir et al. [100]	Phantosmia	USA	57/F	Pfizer-BioNTech COVID-19 vaccination Second dose	None	Feeling weak, fatigued, with random episodes of ‘‘smelling smoke’’ associated with hyposmia	Postcontrast CT demonstrates faint enhancement left olfactory tract MRI enhancement of the left greater than right olfactory bulb and bilateral olfactory tracts	None	None
Reyes-Capo et al. [101]	Acute abducens nerve palsy	USA	59/F	Pfizer-BioNTech COVID-19 vaccine	2 days	Fever for 1 day followed by diplopia	Normal MRI of brain and orbits	Not available	Sensory-motor examination remained unchanged in recent follow-up
Parrino et al. [102]	Tinnitus	Italy	37/F 63/ 30/M	BNT162b2 mRNA-vaccine	7-h first dose 20 h 7 days	Sudden unilateral tinnitus	Normal MRI	Corticosteroids, in two	Improved all
Tseng et al. [103 ] PMID: 34,297,133	Reversible tinnitus and cochleopathy	Taiwan	32/M	First dosage of the AstraZeneca COVID-19 vaccine	5 h	High-pitch tinnitus and disturbed the normal hearing high fever with chills and myalgia	Not done	Corticosteroids	Improved
Narasimhalu et al. [104]	Trigeminal and cervical radiculitis	Singapore	52/F	Pfizer-BioNTech vaccination (tozinameran)	3 h first dose	Numbness, swelling and pain over the left face and neck	MRI of trigeminal nerve revealed thickening and perineural sheath enhancement of the V3 segment of the left trigeminal nerve The MRI of the cervical spine revealed spondylotic changes	Pregabalin	Improved