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Tharakan T, Kallogjeri D, Piccirillo JF. Clinical studies in COVID-related olfactory disorders: Review of an institutional experience. World J Otorhinolaryngol Head Neck Surg 2024; 10:129-136. [PMID: 38855285 PMCID: PMC11156682 DOI: 10.1002/wjo2.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 02/20/2024] [Accepted: 03/08/2024] [Indexed: 06/11/2024] Open
Abstract
Objective To share a single institutional experience with clinical research on COVID-related olfactory dysfunction (OD). Data Source/Method Narrative review of published original data and ongoing clinical trials on COVID-related OD at Washington University from 2020 to 2023. Results There were three new diagnostic-/patient-reported outcome measures developed and tested. We report five clinical trials of interventions for COVID-related olfactory disorders: combined Visual-Olfactory Training (VOLT) with patient-preferred scents versus standard olfactory training (VOLT trial), oral gabapentin versus placebo (Gabapentin for the Relief of Acquired Chemosensory Experience trial), nasal theophylline irrigations versus placebo (Smell Changes and Efficacy of Nasal Theophylline trial), stellate ganglion block (single-arm), and mindfulness-based stress reduction (MBSR) versus lifestyle intervention (MBSR trial). Conclusions Initial intervention trials for COVID-related OD have shown potential for improving subjective and objective olfactory outcomes. However, there remains no gold standard treatment that definitively outperforms placebo in controlled trials. Therefore, continued investigation of novel therapeutic strategies for COVID-related OD is necessary to maximize olfactory outcomes for affected patients.
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Affiliation(s)
- Theresa Tharakan
- Department of Otolaryngology–Head and Neck Surgery, Clinical Outcomes Research Office, School of MedicineWashington University in St LouisSt LouisMissouriUSA
| | - Dorina Kallogjeri
- Department of Otolaryngology–Head and Neck Surgery, Clinical Outcomes Research Office, School of MedicineWashington University in St LouisSt LouisMissouriUSA
| | - Jay F. Piccirillo
- Department of Otolaryngology–Head and Neck Surgery, Clinical Outcomes Research Office, School of MedicineWashington University in St LouisSt LouisMissouriUSA
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2
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Dias M, Shaida Z, Haloob N, Hopkins C. Recovery rates and long-term olfactory dysfunction following COVID-19 infection. World J Otorhinolaryngol Head Neck Surg 2024; 10:121-128. [PMID: 38855291 PMCID: PMC11156684 DOI: 10.1002/wjo2.163] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 02/08/2024] [Indexed: 06/11/2024] Open
Abstract
Objectives Olfactory dysfunction is one of the most recognized symptoms of COVID-19, significantly impacting quality of life, particularly in cases where recovery is prolonged. This review aims to explore patterns of olfactory recovery post-COVID-19 infection, with particular focus on delayed recovery. Data Sources Published literature in the English language, including senior author's own work, online and social media platforms, and patients' anecdotal reports. Method A comprehensive review of the literature was undertaken by the authors with guidance from the senior author with expertise in the field of olfaction. Results Based on self-report, an estimated 95% of patients recover their olfactory function within 6 months post-COVID-19 infection. However, psychophysical testing detects higher rates of persistent olfactory dysfunction. Recovery has been found to continue for at least 2 years postinfection; negative prognostic indicators include severe olfactory loss in the acute phase, female sex, and older age. Variability in quantitative and qualitative disturbance in prolonged cases likely reflects both peripheral and central pathophysiological mechanisms. Limitations of many of the reviewed studies reflect lack of psychophysical testing and baseline olfactory assessment. Conclusions Post-COVID-19 olfactory dysfunction remains a significant health and psychosocial burden. Emerging evidence is improving awareness and knowledge among clinicians to better support patients through their olfactory rehabilitation, with hope of recovery after several months or years. Further research is needed to better understand the underlying pathogenesis of delayed recovery, identify at risk individuals earlier in the disease course, and develop therapeutic targets.
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Álvarez-Santacruz C, Tyrkalska SD, Candel S. The Microbiota in Long COVID. Int J Mol Sci 2024; 25:1330. [PMID: 38279329 PMCID: PMC10816132 DOI: 10.3390/ijms25021330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/19/2024] [Accepted: 01/20/2024] [Indexed: 01/28/2024] Open
Abstract
Interest in the coronavirus disease 2019 (COVID-19) has progressively decreased lately, mainly due to the great effectivity of vaccines. Furthermore, no new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants able to circumvent the protection of these vaccines, while presenting high transmissibility and/or lethality, have appeared. However, long COVID has emerged as a huge threat to human health and economy globally. The human microbiota plays an important role in health and disease, participating in the modulation of innate and adaptive immune responses. Thus, multiple studies have found that the nasopharyngeal microbiota is altered in COVID-19 patients, with these changes associated with the onset and/or severity of the disease. Nevertheless, although dysbiosis has also been reported in long COVID patients, mainly in the gut, little is known about the possible involvement of the microbiota in the development of this disease. Therefore, in this work, we aim to fill this gap in the knowledge by discussing and comparing the most relevant studies that have been published in this field up to this point. Hence, we discuss that the relevance of long COVID has probably been underestimated, and that the available data suggest that the microbiota could be playing a pivotal role on the pathogenesis of the disease. Further research to elucidate the involvement of the microbiota in long COVID will be essential to explore new therapeutic strategies based on manipulation of the microbiota.
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Affiliation(s)
| | - Sylwia D. Tyrkalska
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain;
- Instituto Murciano de Investigación Biosanitaria (IMIB)-Pascual Parrilla, 30120 Murcia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Sergio Candel
- Departamento de Biología Celular e Histología, Facultad de Biología, Universidad de Murcia, 30100 Murcia, Spain;
- Instituto Murciano de Investigación Biosanitaria (IMIB)-Pascual Parrilla, 30120 Murcia, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER), Instituto de Salud Carlos III, 28029 Madrid, Spain
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4
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Lötsch J, Brosig O, Slobodova J, Kringel D, Haehner A, Hummel T. Diagnosed and subjectively perceived long-term effects of COVID-19 infection on olfactory function assessed by supervised machine learning. Chem Senses 2024; 49:bjad051. [PMID: 38213039 DOI: 10.1093/chemse/bjad051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Indexed: 01/13/2024] Open
Abstract
Loss of olfactory function is a typical acute coronavirus disease 2019 (COVID-19) symptom, at least in early variants of SARS-CoV2. The time that has elapsed since the emergence of COVID-19 now allows for assessing the long-term prognosis of its olfactory impact. Participants (n = 722) of whom n = 464 reported having had COVID-19 dating back with a mode of 174 days were approached in a museum as a relatively unbiased environment. Olfactory function was diagnosed by assessing odor threshold and odor identification performance. Subjects also rated their actual olfactory function on an 11-point numerical scale [0,…10]. Neither the frequency of olfactory diagnostic categories nor olfactory test scores showed any COVID-19-related effects. Olfactory diagnostic categories (anosmia, hyposmia, or normosmia) were similarly distributed among former patients and controls (0.86%, 18.97%, and 80.17% for former patients and 1.17%, 17.51%, and 81.32% for controls). Former COVID-19 patients, however, showed differences in their subjective perception of their own olfactory function. The impact of this effect was substantial enough that supervised machine learning algorithms detected past COVID-19 infections in new subjects, based on reduced self-awareness of olfactory performance and parosmia, while the diagnosed olfactory function did not contribute any relevant information in this context. Based on diagnosed olfactory function, results suggest a positive prognosis for COVID-19-related olfactory loss in the long term. Traces of former infection are found in self-perceptions of olfaction, highlighting the importance of investigating the long-term effects of COVID-19 using reliable and validated diagnostic measures in olfactory testing.
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Affiliation(s)
- Jörn Lötsch
- Goethe-University, Institute of Clinical Pharmacology, Theodor Stern Kai 7, 60590 Frankfurt am Main, Germany
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Oskar Brosig
- Smell & Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Jana Slobodova
- Department of Otolaryngology, University of Pardubice, Faculty of Health Studies, Pardubice, Czech Republic
| | - Dario Kringel
- Goethe-University, Institute of Clinical Pharmacology, Theodor Stern Kai 7, 60590 Frankfurt am Main, Germany
| | - Antje Haehner
- Smell & Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
| | - Thomas Hummel
- Smell & Taste Clinic, Department of Otorhinolaryngology, TU Dresden, Fetscherstrasse 74, 01307 Dresden, Germany
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Rosca EC, Cornea A, Simu M. Emerging Trends in Complications Associated with SARS-CoV-2 Infection. Biomedicines 2023; 12:4. [PMID: 38275366 PMCID: PMC10813045 DOI: 10.3390/biomedicines12010004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic has presented a remarkable challenge to global health, sparking a surge in research aimed at understanding the multifaceted impacts of the virus [...].
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Affiliation(s)
- Elena Cecilia Rosca
- Department of Neurology, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. no. 2, 300041 Timisoara, Romania; (A.C.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca no. 10, 300736 Timisoara, Romania
| | - Amalia Cornea
- Department of Neurology, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. no. 2, 300041 Timisoara, Romania; (A.C.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca no. 10, 300736 Timisoara, Romania
| | - Mihaela Simu
- Department of Neurology, Victor Babes University of Medicine and Pharmacy Timisoara, Eftimie Murgu Sq. no. 2, 300041 Timisoara, Romania; (A.C.); (M.S.)
- Department of Neurology, Clinical Emergency County Hospital Timisoara, Bd. Iosif Bulbuca no. 10, 300736 Timisoara, Romania
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Sowerby LJ, Almubarak Z, Biadsee A, Rocha T, Hopkins C. Coronavirus disease 2019 related parosmia: an exploratory survey of demographics and treatment strategies. J Laryngol Otol 2023; 137:1256-1260. [PMID: 37194063 PMCID: PMC10627779 DOI: 10.1017/s0022215123000713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2023] [Indexed: 05/18/2023]
Abstract
OBJECTIVE To investigate the clinical features, therapeutic efficacy and symptom time course of post-coronavirus disease 2019 parosmia. METHODS A 22-item online questionnaire was distributed to AbScent research group and Facebook coronavirus disease 2019 anosmia group adult members to assess clinical features, interventions and their subjective efficacy for parosmia. RESULTS A total of 209 participants (86 per cent females) reported: smell loss on average 3 days after coronavirus symptoms, recovery 4 weeks later, and first parosmia symptoms 12 weeks post infection. Respondents reported 10 per cent body weight loss, and listed onion and garlic as significant parosmia triggers. Regarding quality of life, depression was the most cited item (54 per cent). Smell training was trialled by 74 per cent of participants, followed by nasal corticosteroid spray (49 per cent). Stellate ganglion block, trialled by 16 per cent of respondents, had the highest reported improvement (45 per cent), with 21 per cent reporting a sustained benefit - the highest rate amongst registered treatment options. CONCLUSION Post-coronavirus parosmia has a significant impact and remains challenging to treat. Stellate ganglion block appears to be successful relative to other reported treatments. Further research into the pathophysiology, efficacy and mechanism of stellate ganglion block effect is warranted.
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Affiliation(s)
- L J Sowerby
- Department of Otolaryngology – Head and Neck Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Z Almubarak
- Department of Otolaryngology – Head and Neck Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - A Biadsee
- Department of Otolaryngology – Head and Neck Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
- Department of Otorhinolaryngology – Head and Neck Surgery, Meir Medical Center, Kfar-Saba, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - T Rocha
- Department of Otolaryngology – Head and Neck Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - C Hopkins
- Department of ENT, Guy's Hospital, London, UK
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Schönherr MV, Hummel T. [Detection of disorders of the chemical senses-assessment of state of health by those affected]. HNO 2023; 71:566-571. [PMID: 37535151 DOI: 10.1007/s00106-023-01345-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/04/2023] [Indexed: 08/04/2023]
Abstract
Although hundreds of thousands of people seek medical help every year because of smell and taste disorders, the burden on patients is often underestimated by health care professionals. Numerous studies have demonstrated the impact of disorders of the chemical senses on quality of life. In clinical practice, the Questionnaire of Olfactory Disorders (QOD) has proven to be a good measure of the impact of olfactory loss on everyday life. Patient-reported outcome measures (PROMs) should therefore be used more frequently for better recording and assessing the needs of patients. In addition to education and treatment by specialized clinics, the provision and optimization of information platforms, support groups, and organizations should be promoted in Germany.
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Affiliation(s)
- Max-Vincent Schönherr
- Klinik- und Poliklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Carl Gustav Carus Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland.
| | - Thomas Hummel
- Klinik- und Poliklinik für Hals‑, Nasen- und Ohrenheilkunde, Universitätsklinikum Carl Gustav Carus Dresden, Fetscherstr. 74, 01307, Dresden, Deutschland
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8
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Davis HE, McCorkell L, Vogel JM, Topol EJ. Long COVID: major findings, mechanisms and recommendations. Nat Rev Microbiol 2023; 21:133-146. [PMID: 36639608 PMCID: PMC9839201 DOI: 10.1038/s41579-022-00846-2] [Citation(s) in RCA: 999] [Impact Index Per Article: 999.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/05/2022] [Indexed: 01/15/2023]
Abstract
Long COVID is an often debilitating illness that occurs in at least 10% of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections. More than 200 symptoms have been identified with impacts on multiple organ systems. At least 65 million individuals worldwide are estimated to have long COVID, with cases increasing daily. Biomedical research has made substantial progress in identifying various pathophysiological changes and risk factors and in characterizing the illness; further, similarities with other viral-onset illnesses such as myalgic encephalomyelitis/chronic fatigue syndrome and postural orthostatic tachycardia syndrome have laid the groundwork for research in the field. In this Review, we explore the current literature and highlight key findings, the overlap with other conditions, the variable onset of symptoms, long COVID in children and the impact of vaccinations. Although these key findings are critical to understanding long COVID, current diagnostic and treatment options are insufficient, and clinical trials must be prioritized that address leading hypotheses. Additionally, to strengthen long COVID research, future studies must account for biases and SARS-CoV-2 testing issues, build on viral-onset research, be inclusive of marginalized populations and meaningfully engage patients throughout the research process.
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Affiliation(s)
| | | | - Julia Moore Vogel
- Scripps Research Translational Institute, Scripps Research, La Jolla, CA, USA
| | - Eric J Topol
- Scripps Research Translational Institute, Scripps Research, La Jolla, CA, USA.
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9
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Andrea XP, Joceline LM, Jose OF, Jose PO. Human Nasal Epithelium Damage as the Probable Mechanism Involved in the Development of Post-COVID-19 Parosmia. Indian J Otolaryngol Head Neck Surg 2023; 75:458-464. [PMID: 36817017 PMCID: PMC9927037 DOI: 10.1007/s12070-023-03559-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 01/31/2023] [Indexed: 02/19/2023] Open
Abstract
Purpose Since the beginning of the COVID-19 pandemic, understanding the physiopathological mechanisms of its manifestations has been crucial to understand the disease and its implications. As the disease evolved, post-infection complications have arisen such as olfactory dysfunctions including parosmia in which odourants are perceived in a distorted or an unpleasant way. Methods In this article, we attempt to clarify these mechanisms and the role of human nasal epithelium in the development of post-COVID-19 parosmia. Results The mechanisms by which SARS-CoV-2 generates olfactory dysfunction have not been elucidated, and multiple theories have been proposed pointing to the sustentacular cells of the olfactory epithelium as the main probable target of the virus. Conclusion Establishing the main physiopathological mechanism of post-COVID-19 parosmia will set a path for further investigations and determine treatment and preventive options for patients who have been reported to be extensively affected in multiple aspects of their lives such as eating habits and mental health.
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Affiliation(s)
- Xolalpa-Peniche Andrea
- grid.441070.60000 0001 2111 4953Facultad Mexicana de Medicina, Universidad La Salle, Las Fuentes 17, Tlalpan Centro I, Tlalpan, 14000 Ciudad de México, México
| | - Lucas-Mata Joceline
- grid.441070.60000 0001 2111 4953Facultad Mexicana de Medicina, Universidad La Salle, Las Fuentes 17, Tlalpan Centro I, Tlalpan, 14000 Ciudad de México, México
| | - Osante-Forastieri Jose
- grid.441070.60000 0001 2111 4953Facultad Mexicana de Medicina, Universidad La Salle, Las Fuentes 17, Tlalpan Centro I, Tlalpan, 14000 Ciudad de México, México
| | - Pérez-Ochoa Jose
- grid.441070.60000 0001 2111 4953Facultad Mexicana de Medicina, Universidad La Salle, Las Fuentes 17, Tlalpan Centro I, Tlalpan, 14000 Ciudad de México, México
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10
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Fetyukov AV, Pshennikov DS, Zaitseva SE. [Olfactory, gustatory and auditory disorders associated with COVID-19. A systematic review of their distribution and pathogenesis]. Vestn Otorinolaringol 2023; 88:61-66. [PMID: 38153895 DOI: 10.17116/otorino20238806161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Abstract
The presented systematic review contains basic information about the frequency, characteristic features of the course and pathogenesis of olfactory, gustatory and auditory disorders that occur with COVID-19, with which an otorhinolaryngologist meets in his practice. These disorders are often the first, and sometimes the only, manifestations of the underlying disease, which determines their role in early diagnosis and timely detection of the underlying disease. The article includes original articles, clinical case reports and literary reviews.
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Affiliation(s)
| | - D S Pshennikov
- Ryazan State Medical University, Ryazan, Russia
- Semashko Ryazan Regional Clinical Hospital, Ryazan, Russia
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11
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Affiliation(s)
- Trisha Greenhalgh
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Manoj Sivan
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK
| | - Brendan Delaney
- Institute of Global Health Innovation, Imperial College London, London, UK
| | - Rachael Evans
- Institute for Lung Health, Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Ruairidh Milne
- School of Healthcare Enterprise and Innovation, University of Southampton, Southampton, UK
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12
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Analysis of Prevalence and Predictive Factors of Long-Lasting Olfactory and Gustatory Dysfunction in COVID-19 Patients. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081256. [PMID: 36013436 PMCID: PMC9410278 DOI: 10.3390/life12081256] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 08/15/2022] [Accepted: 08/15/2022] [Indexed: 11/27/2022]
Abstract
Background: Although smell and taste disorders are highly prevalent symptoms of COVID-19 infection, the predictive factors leading to long-lasting chemosensory dysfunction are still poorly understood. Methods: 102 out of 421 (24.2%) mildly symptomatic COVID-19 patients completed a second questionnaire about the evolution of their symptoms one year after the infection using visual analog scales (VAS). A subgroup of 69 patients also underwent psychophysical evaluation of olfactory function through UPSIT. Results: The prevalence of chemosensory dysfunction decreased from 82.4% to 45.1% after 12 months, with 46.1% of patients reporting a complete recovery. Patients older than 40 years (OR = 0.20; 95% CI: [0.07, 0.56]) and with a duration of loss of smell longer than four weeks saw a lower odds ratio for recovery (OR = 0.27; 95% CI: [0.10, 0.76]). In addition, 28 patients (35.9%) reported suffering from parosmia, which was associated with moderate to severe taste dysfunction at the baseline (OR = 7.80; 95% CI: [1.70, 35.8]). Among the 69 subjects who underwent the UPSIT, 57 (82.6%) presented some degree of smell dysfunction, showing a moderate correlation with self-reported VAS (r = −0.36, p = 0.0027). Conclusion: A clinically relevant number of subjects reported persistent chemosensory dysfunction and parosmia one year after COVID-19 infection, with a moderate correlation with psychophysical olfactory tests.
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Kye Wen Tan N, Jing-Wen C, Kye Jyn Tan B, Han R, Zhao JJ, Sen Hui Quah E, Kelly C, Wei Yang Teo N, See A, Toh ST, Hopkins C. The burden of prolonged smell and taste loss in covid-19. BMJ 2022; 378:o1895. [PMID: 35896196 DOI: 10.1136/bmj.o1895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Nicole Kye Wen Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | | | - Benjamin Kye Jyn Tan
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Ruobing Han
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Joseph J Zhao
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | - Emrick Sen Hui Quah
- Yong Loo Lin School of Medicine, National University of Singapore (NUS), Singapore
| | | | - Neville Wei Yang Teo
- Surgery Academic Clinical Program, SingHealth, Singapore
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Anna See
- Surgery Academic Clinical Program, SingHealth, Singapore
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
- Department of Otorhinolaryngology-Head & Neck Surgery, Sengkang General Hospital (SKH), Singapore
| | - Song Tar Toh
- Surgery Academic Clinical Program, SingHealth, Singapore
- Department of Otorhinolaryngology-Head & Neck Surgery, Singapore General Hospital (SGH), Singapore
| | - Claire Hopkins
- Department of Otorhinolaryngology-Head & Neck Surgery, Guy's and St Thomas' Hospitals, London, United Kingdom
- King's College, London, United Kingdom
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14
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Affiliation(s)
- Paolo Boscolo-Rizzo
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, 34149, Trieste, Italy
| | - Jerry Polesel
- Unit of Cancer Epidemiology, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, Aviano, Italy
| | - Luigi A Vaira
- Department of Medical, Surgical and Experimental Sciences, Maxillofacial Surgery Operative Unit, University of Sassari, Sassari, Italy
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15
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Boscolo-Rizzo P, Hopkins C, Menini A, Dibattista M, Cancellieri E, Gardenal N, Tofanelli M, Valentinotti R, Lechien JR, Vaira LA, Tirelli G. Parosmia assessment with structured questions and its functional impact in patients with long-term COVID-19-related olfactory dysfunction. Int Forum Allergy Rhinol 2022; 12:1570-1574. [PMID: 35758174 PMCID: PMC9350240 DOI: 10.1002/alr.23054] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 06/22/2022] [Accepted: 06/22/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Paolo Boscolo-Rizzo
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy
| | | | - Anna Menini
- Neurobiology Group, SISSA, Scuola Internazionale Superiore di Studi Avanzati, Trieste, Italy
| | - Michele Dibattista
- Department of Basic Medical Sciences, Neuroscience and Sensory Organs, University of Bari "A. Moro", Bari, Italy
| | - Emilia Cancellieri
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy
| | - Nicoletta Gardenal
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy
| | - Margherita Tofanelli
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy
| | - Romina Valentinotti
- Department of Prevention, Section of Hygiene and Public Health, Azienda Sanitaria Universitaria Giuliano Isontina (ASUGI), Trieste, Italy
| | - Jerome R Lechien
- Department of Otolaryngology-Head Neck Surgery, Elsan Hospital, Paris, France
| | - Luigi Angelo Vaira
- Department of Medical, Surgical and Experimental Sciences, Maxillofacial Surgery Operative Unit, University of Sassari, Sassari, Italy
| | - Giancarlo Tirelli
- Department of Medical, Surgical and Health Sciences, Section of Otolaryngology, University of Trieste, Trieste, Italy
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