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Evaluation of children and adults with post-COVID-19 persistent smell,taste and trigeminal chemosensory disorders:A hospital based study

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World Journal of Clinical Pediatrics 2023年第3期12卷 133-150页

作者： Sherifa Ahmed Hamed Eman Bahaa Kamal-Eldeen Mohamed Azzam Abdel-Razek Ahmed Department of Neurology and Psychiatry Assiut UniversityFaculty of MedicineAssiut 71516Egypt Department of Pediatrics Assiut UniversityFaculty of MedicineAssiut 71516Egypt Department of ENT Assiut UniversityFaculty of MedicineAssiut 71516Egypt

BACKGROUND Smell disorders are the most frequent persistent coronavirus disease 2019(COVID-19)*** To describe the patterns and characteristics of persistent smell and taste disorders in Egyptian *** Assessment was done to 185 patients(adults=150,age:31.41±8.63 years;children=35;age:15.66±1.63 years).Otolaryngology and neuropsychiatric evaluations were *** included:A clinical questionnaire(for smell and taste);sniffin'odor,taste and flavor identification tests and the Questionnaire of Olfactory Disorders-Negative Statements(sQOD-NS).RESULTS Duration of disorders was 11.53±3.97 ms(6-24 ms).parosmia(n=119;64.32%)was developed months after anosmia(3.05±1.87 ms).Objective testing showed anosmia in all,ageusia and flavor loss in 20%(n=37)and loss of nasal and oral trigeminal sensations in 18%(n=33)and 20%(n=37),*** had low scoring of sQOD-NS(11.41±3.66).There were no specific differences in other demographics and clinical variables which could distinguish post-COVID-19 smell and taste disorders in children from *** The course of small and taste disorders are supportive of the nasal and oral neuronal ***-COVID-19 taste and trigeminal disorders were less frequent compared to smell ***-COVID-19 flavor disorders were solely dependent on taste and not smell *** were no demographics,clinical variables at onset or specific profile of these disorders in children compared to adults.

关键词： Post-COVID-19 complications Anosmia Ageusia Trigeminal sensory loss parosmia Quality of life

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Recovery rates and long-term olfactory dysfunction following COVID-19 infection

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 121-128页

作者： Melanie Dias Zara Shaida Nora Haloob Claire Hopkins ENT Department Guy's HospitalLondonUK

Objectives:Olfactory dysfunction is one of the most recognized symptoms of COVID-19,significantly impacting quality of life,particularly in cases where recovery is *** review aims to explore patterns of olfactory recovery post-COVID-19 infection,with particular focus on delayed *** Sources:Published literature in the English language,including senior author's own work,online and social media platforms,and patients'anecdotal ***:A comprehensive review of the literature was undertaken by the authors with guidance from the senior author with expertise in the field of ***:Based on self-report,an estimated 95%of patients recover their olfactory function within 6 months post-COVID-19 ***,psychophysical testing detects higher rates of persistent olfactory *** 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 *** in quantitative and qualitative disturbance in prolonged cases likely reflects both peripheral and central pathophysiological *** of many of the reviewed studies reflect lack of psychophysical testing and baseline olfactory ***:Post-COVID-19 olfactory dysfunction remains a significant health and psychosocial *** evidence is improving awareness and knowledge among clinicians to better support patients through their olfactory rehabilitation,with hope of recovery after several months or *** 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.

关键词： anosmia COVID-19 olfaction parosmia recovery

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Long-term olfactory loss post-COVID-19:Pathobiology and potential therapeutic strategies

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World Journal of Otorhinolaryngology-Head and Neck Surgery 2024年第2期10卷 148-155页

作者： Sarah Kim John B.Finlay Tiffany Ko Bradley J.Goldstein Department of Head and Neck Surgery&Communication Sciences Duke UniversityDurhamNorth CarolinaUSA Medical Scientist Training Program Duke UniversityDurhamNorth CarolinaUSA Department of Neurobiology Duke UniversityDurhamNorth CarolinaUSA

An acute loss of smell emerged as a striking symptom present in roughly half of the people infected with the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)virus in the early phases of the COVID-19 *** most COVID-19 patients,olfaction recovers over the course of a few ***,a lasting partial or complete loss of smell,often associated with distorted olfactory perceptions termed parosmia,has emerged as a widespread problem impacting at least 5%-10%of those who experience anosmia due to *** inability to offer effective therapies to this hyposmic or anosmic population,comprising millions of patients,highlights an enormous unmet need for the medical ***,we summarize the current understanding of the pathobiology causing acute olfactory loss due to SARS-CoV-2 infection,focusing on how the virus interacts with the peripheral olfactory system,a major site of viral *** also explore the problem of long-COVID olfactory dysfunction,which may accompany other persistent systemic disorders collectively termed postacute sequelae of ***,we discuss an emerging model focused on unresolved immune cell activity driving ongoing ***,we review current and future therapeutic approaches aimed at restoring olfactory function.

关键词： hyposmia inflammation long-COVID parosmia

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Post-COVID-19 persistent olfactory,gustatory,and trigeminal chemosensory disorders:Definitions,mechanisms,and potential treatments

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World Journal of Otorhinolaryngology 2023年第2期10卷 4-22页

作者： Sherifa Ahmed Hamed Department of Neurology and Psychiatry Assiut UniversityFaculty of MedicineAssiut 71516Egypt

The nose and the oral cavities are the main sites for severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)entry into the *** and taste deficits are the most common acute viral *** smell disorders are the most common and bothersome complications after SARS-CoV-2 infection,lasting for months to *** mechanisms and treatment of persistent post-coronavirus disease 2019(COVID-19)smell and taste disorders are still *** sources for the review are PubMed,Centers for Disease Control and Prevention,Ovid Medline,Embase,Scopus,Web of Science,International Prospective Register of Systematic Reviews,Cumulative Index to Nursing and Allied Health Literature,Elton Bryson Stephens Company,Cochrane Effective Practice and Organization of Care,Cooperation in Science and Technology,International Clinical Trials Registry Platform,World Health Organization,Randomized Controlled Trial Number Registry,and *** review summarizes the up-to-date information about the prevalence,patterns at onset,and prognoses of post-COVID-19 smell and taste disorders,evidence for the neurotropism of SARS-CoV-2 and the overlap between SARSCoV-1,Middle East respiratory syndrome coronavirus,and SARS-CoV-2 in structure,molecular biology,mode of replication,and host pathogenicity,the suggested cellular and molecular mechanisms for these post-COVID19 chemosensory disorders,and the applied pharmacotherapies and interventions as trials to treat these disorders,and the recommendations for future research to improve understanding of predictors and mechanisms of these *** are crucial for hopeful proper treatment strategies.

关键词： COVID-19 SARS-CoV-2 Coronaviruses Olfactory and gustatory chemosensory disorders Anosmia Ageusia parosmia Neuronal degeneration Neurogenesis

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