Characteristics of Olfactory Disorders in Relation to Major Causes of Olfactory Loss

Abstract

Among many complaints of olfactory loss, the predominant ones were food related. This loss in QoL seemed to be of greater importance in younger than in older people, and women seem to be affected more strongly than men.

Olfactory Dysfunction and Asthma as Risk Factors for Poor Quality of Life in Upper Airway Diseases

“…However, some discrepancies in the published studies on this issue are evident. Recently, Temmel et al 14 found complaint scores in hyposmic patients higher than in anosmic patients, differing on this issue from the present study. On the contrary, Litvack et al 21 and Seo et al , 22 found that olfactory sensitivity is not associated with poor QoL.…”

“…8 However, duration of olfactory loss (over 5 years) presented a moderate significant correlation only for mood scales (ZAS, STAI, ZDS, and BDI). This is in accordance with a recent study of Temmel et al 14 and emphasizes the significance of smells, irrespective to duration, in everyday life. Moreover, anosmia was associated with patients’ low SES.…”

“…This is in accordance with our finding that duration of anosmia was significantly longer among patients with low compared SES with those with high SES (median duration, 6.5 years versus 2.5 years; p = 0.045, respectively). Our results are in agreement with the findings of previous studies 9–20 that revealed that subjects with severely impaired olfactory function have a significantly higher degree of depression and decreased QoL compared with subjects with normal to moderately impaired olfaction. However, some discrepancies in the published studies on this issue are evident.…”

Clinical features of olfactory disorders in patients seeking medical consultation

“…Despite our problem with identifying the exact etiology of olfactory dysfunction in 13.6% of patients seeking medical consultation, URTI was the most common cause for olfactory dysfunction among various causes, followed by NDS and head trauma. Thus, the present findings agree well with those of previous reports [20,21]. …”

Olfactory Dysfunction Evaluation Is Not Affected by Comorbid Depression in Parkinson's Disease

“…Identification was found to be compromised in MDD patients using SST in one study, in contrast to our results and those of most published studies that failed to find any difference between depressed patients and healthy individuals . In 85 nondemented healthy older adults and in 278 consecutive healthy adults with olfactory impairment, depressive symptoms were not associated with deficits in SST thresholds or identification modalities. Possible discrepancies among studies evaluating the relationship between olfaction and depression may be owing to one of the following: lack of standardized measures of olfaction or depression; varying levels of depression severity; and small sample size.…”