Long-term impact of olfactory dysfunction on daily life

Area of Science:

• Otolaryngology
• Neuroscience
• Psychology

Background:

• Olfactory dysfunction (OD) is prevalent, impacting quality of life (QoL) and potentially causing depression.
• Limited long-term outcome data necessitates improved patient counseling on prognosis.
• This study investigates long-term recovery, QoL, and mood in OD patients.

Purpose of the Study:

• To assess subjective long-term recovery rates in patients with olfactory dysfunction.
• To evaluate the long-term quality of life (QoL) in individuals with OD.
• To determine the extent of mood disturbance in a cohort of OD patients over time.

Main Methods:

• Follow-up of 65 patients treated for OD between 2003-2009, averaging 8.6 years post-treatment.
• Utilized questionnaires including the WHOQOL-BREF and Beck's Depression Inventory.
• Administered smell identification tests to a subset of patients.

Main Results:

• Subjective improvement reported by 33.8% of patients long-term; highest rate (42.3%) in postinfectious OD.
• Significant improvement in subjective olfactory function and identification scores at follow-up.
• Reduced QoL reported by 40% of patients; minimal depressive symptoms observed.

Conclusions:

• Patients with olfactory dysfunction demonstrate long-term adaptation despite daily life challenges.
• Findings support clinicians in providing prognosis-informed patient counseling.
• Olfactory dysfunction impacts daily activities but long-term adaptation is possible.