![]() Those patients with vertigo/dizziness beyond one month after vaccination, those without complete 3-month medication previously, or those without vaccination were also excluded. Įxclusion criteria comprised concurrent middle or inner ear anomaly/infection and head injury. Diagnosis of Meniere disease (MD) was based on the guidelines proposed by the American Academy of Otolaryngology-Head and Neck Surgery in 1995 and the Barany Society in 2015. Additionally, inter-episodic interval of vertigo/dizziness in the same patients, but without vaccination, during past one year (2020) was also recorded for comparison.ĭiagnosis of vestibular migraine (VM) was jointly formulated and recently updated by the Barany Society and International Headache Society, including a cardinal symptom of at least 5 episodes of vestibular symptoms (lasting 5 min to 72 h) with migraine features, but normal hearing and vestibular function tests between attacks. Details of vaccination were obtained via face-to-face interview including types and shots of the vaccine, time from date of vaccination to the onset of vertigo/dizziness. All patients received otoscopy first, followed by an inner ear test battery including audiometry, cervical vestibular-evoked myogenic potential (cVEMP) test, ocular VEMP (oVEMP) test, and caloric test, then diagnosis was established. Fifteen were males and 35 females, with a mean age of 56 ± 14 years. Hence, this study assessed the episodic vertigo/dizziness following COVID-19 vaccination.įrom July 2021 to June 2022, totaling 50 patients with episodic vertigo/dizziness following COVID-19 vaccination visited our neurotological clinic of the university hospital. On the other hand, many patients came to the neurotological clinic due to episodic vertigo/dizziness after receiving COVID-19 vaccine, which warrants further investigation. The incidence of autonomic dysfunction in 2020 (15.3 %) was significantly higher than 8.5–13.1 % during 2016–2019, probably because of increased psychological stress, panic, anxiety, or depression associated with social isolation in time of a pandemic COVID-19 period. Opposed to the declining numbers of a neurotological clinic, more patients with autonomic dysfunction visited our clinic. ĭuring the pandemic period of COVID-19, the annual new cases of audiovestibular disorders at our neurotological clinic of a university hospital decreased from 2068 (2019) to 1829 (2020), likely because patients with inner ear disorders did exist, yet they just never presented for medical care. By the end of June 2022, overall 15,294,226, 17,926,798 and 21,860,972 shots of the AZ, BNT and Moderna vaccines were administered in Taiwan, respectively. Initially, the AZ vaccine was administered to the elderly aged >65 years, followed by the Moderna vaccine since June 2021, and the BNT vaccine since September 2021, according to a decreasing sequence of 10-year age bands among adults based on the policy of the Centers for Disease Control (CDC) in Taiwan. Vaccination against COVID-19 started in Taiwan in March 2021. Thereafter, several types of vaccines against COVID-19 infection have been released for controlling the pandemic and its socioeconomic impact, including Elasomeran (Moderna, Spikevax, mRNA-1273), briefly Moderna vaccine Tozinameran (Pfizer-BioNTech, Comirnaty, BNT162b2), briefly BNT vaccine (Janssen, COVID-19 Vaccine Janssen), briefly Janssen vaccine, and so on. A newly developed vaccine termed ChAdOx1 nCoV19 (AstraZeneca-Oxford University, Vaxzevria, AZD1222), briefly AZ vaccine, was approved for emergency use at the end of 2020. The global outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) since November 2019 led the World Health Organization (WHO) to declare a pandemic infection of “Coronavirus disease 2019 (COVID-19)”. ![]()
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