In Thailand, there may be limitations in sending for MRI/MRA brain in some places. Some physicians consider sending for MRI/MRA brain when there are indications that (1) intractable HFS that does not respond to treatment with botulinum toxin type A (BTX-A) injections and or (2) patient has associated neurological symptoms and signs such as a clicking sound in the ear, hearing loss, ataxia, or weakness. Previous study has found that the severity of NVC during the microvascular decompression (MVD)
Conditions
Interventions
Primary and secondary hemifacial spasm
Other
Hemifacial spasm
Sponsors
The Faculty of Medicine, Thammasat University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Patients older than 18 years 2. Clinical diagnosis of hemifacial spasm
Exclusion criteria
Exclusion criteria: 1. Pregnancy of lactating women 2. Patients who received botulinum toxin type A injection within 12 weeks. 3. Patients who had previous microvascular decompression surgery.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Brain imaging of hemifacial spasm Date of brain imaging Magnetic resonance imaging | — |
Secondary
| Measure | Time frame |
|---|---|
| Radiologic nerve compression Date of brain imaging Magnetic resonance imaging | — |
Countries
Thailand
Contacts
Public ContactSuntaree Thitiwichienlert
Thammasat University
Outcome results
None listed