Evaluation of the effectiveness of TDCS (Transcranial Direct Current Stimulation) in the treatment of prolonged decreased of sense of smell in patients with Covid-19

Not Applicable

• Conditions: covid-19.; Coronavirus infection, unspecified; B34.2

• Registration Number: IRCT20180205038619N2
• Lead Sponsor: Iran University of Medical Sciences

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Last Update Posted: 30 August 2021

Recruitment & Eligibility

• Status: Pending
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

Age between 18 and 60 years
Loss of sense of smell after Covid-19 (anosmia that has not improved for more than a month after the onset of symptoms and with routine treatment)
Decreased of sense of smell after Covid-19 (anosmia that has not improved for more than a month after the onset of symptoms and with routine treatment)

Exclusion Criteria

Pregnancy
Seizures or family history of seizures
Implanted metal devices such as pacemakers, metal plate and wire
History of brain surgery

Study & Design

• Study Type: interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Olfactory sensitivity. Timepoint: Patients are assessed before the intervention and one week after 4 sessions of TDCS. Method of measurement: Participants' olfactory sensitivity will be measured by the Smell Identification Test (SIT) . In this method, 24 Iranianized odor such as rose, caffeine, saffron, etc. will be used and a score of 24 will be given, with a score of 19 to 24 being considered the normal range. A score of 14 to 18 is mild microsmia, a score of 10 to 13 is severe microsmia, and a score of 0 to 9 is anosmia.