Evaluating Patients with Olfactory Dysfunction after COVID-19 Infection by Questionnaire of Olfactory Disorders-Negative Statements

نویسندگان

1 1. Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Chronic Respiratory Disease Research Centre, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 3. Department of Otolaryngology, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

2 2. Chronic Respiratory Disease Research Centre, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

3 1. Chronic Respiratory Disease Research Centre, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Department of Otolaryngology, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

4 1. Hearing Disorders Research Center, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Chronic Respiratory Disease Research Centre, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

5 1. Chronic Respiratory Disease Research Centre, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran. 2. Department of Otolaryngology, Masih Daneshvari Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

doi
10.22037/orlfps.v8i1.41540
چکیده

Background: The number of patients with COVID-19-induced olfactory dysfunction has consistently increased since the onset of the pandemic. Since a considerable proportion of these patients have olfactory dysfunction for a relatively long period of time, their quality of life (QOL) may considerably be impacted as a result. Aim: The aim of the present study was to investigate the adverse effects of olfactory dysfunction on QOL in patients with COVID-19-induced hyposmia or anosmia. Methods: The data were obtained via self-reported online questionnaire in individuals who met the inclusion criteria. The questionnaire included demographics, olfactory status and Questionnaire of Olfactory Disorders-Negative Statements (QOD-NS). Results: Among1531 participants, 1072 individuals met the inclusion criteria, with 588 (54.85%) having hyposmia and 484 (45.15%) anosmia. Average age was 35.7 in the hyposmic group and 34.5 in the anosmic group. Concurrent hypogeusia/ageusia was reported in 398 (67.7%) of cases with hyposmia and in 346 (71.5%) of participants with anosmia. Lack of enjoyment of eating food was the most negative effect in both hyposmic and anosmic groups, followed by annoyance when eating food and a continuous awareness of the olfactory problem. The mean QOD-NS score was 20.5±10.2 in the hyposmic group and 23.3±10.4 in the anosmic group, demonstrating significant adverse impact on QOL. Conclusion: Persistent olfactory dysfunction in patients with COVID-19 has adverse effects on QOL. Early diagnosis and treatment of olfactory dysfunction may be crucial in limiting the adverse impact on QOL by psychological and nutritional support and olfactory rehabilitation.