Effects of Different Anesthesia on Odor Memory

Comparison of the Effects of TIVA and Inhalation Anesthesia Methods on Olfactory Functions and Olfactory Memory

Status

Completed

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT05499845

Enrollment

Registered

2022-08-12

Start date

2013-01-01

Completion date

2013-07-01

Last updated

2022-08-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Odor Memory, Smell Functions

Keywords

General anesthesia management, propofol, sevoflurane, odor memory, smell functions

Brief summary

This study aimed to research the effect of different general anesthesia administration on postoperative smell functions and memory.

Interventions

DIAGNOSTIC_TESTbutanol threshold test and smell identification tests

no additional intervention

Study design

Observational model

OTHER

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to 60 Years

Healthy volunteers

Yes

Inclusion criteria

* American Society of Anesthesiologists (ASA) I-II risk groups * operated under elective conditions with general anesthesia requiring intubation * operation durations of 40-180 minutes.

Exclusion criteria

* intracranial, * endocrine or nasal surgery, * pregnant cases, * those with history of respiratory tract diseases and psychiatric disease, with disorder of odor reception and perception, * with smoking and chronic alcohol use, * requiring a nasogastric probe

Design outcomes

Primary

Measure	Time frame	Description
Butanol Threshold Test	during 24 hour after surgery	threshold detection and odor discrimination
Odor Identification Test	during 24 hour after surgery	odor discrimination

Countries

Turkey (Türkiye)

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026