Treatment of Cerebral (Cerebellar) Ataxia in a 60-Year-Old Female

Step 1: Identify and Treat the Underlying Cause

• Harrison's 22E, p. 3579-3580; Ganong's Physiology, p. THERAPEUTIC HIGHLIGHTS

Step 2: Immunotherapy for Autoimmune/Paraneoplastic Ataxia

• Response to immunotherapy is generally poor, but subacute onset (<6 months) + early treatment improves chances
• Options: IV glucocorticoids, IVIG, plasma exchange, rituximab, cyclophosphamide

• mGluR1 antibodies: ~50% improve with immunotherapy
• GluK2 antibodies (cerebellitis with 4th ventricle compression): respond well
• VGCC antibodies (with SCLC): respond to immunotherapy
• Tr antibodies (Hodgkin's lymphoma): respond well

• Most do not respond to treatment; best outcomes from tumor removal
• A 60-year-old woman must be screened for breast, ovarian, uterine, and lung cancers

Harrison's 22E, p. 3580; Bradley & Daroff's Neurology in Clinical Practice

Step 3: Symptomatic / Supportive Treatment (All Ataxias)

Rehabilitation (Cornerstone)

• Physiotherapy: Coordination exercises, balance training, proprioceptive feedback
• Balance training is supported by clinical practice guidelines
• High-intensity aerobic exercise (30 min, 5x/week, up to 85% max HR) shown in a 2025 JAMA Neurology RCT to improve SARA scores comparably to balance training
• Occupational therapy: Adaptive equipment, ADL assistance
• Speech and swallow therapy: For dysarthria and dysphagia
• Mobility aids: Cane, walker (lower the walker to shift center of gravity forward - important for the elderly to prevent retropulsion and falls)

Physical Aids

• Weighted wrist/limb cuffs: Reduce kinetic tremor amplitude by adding inertia (particularly for upper limb ataxia)
• Orthoses for gait assistance

Pharmacological Symptomatic Treatment

• Riluzole (50 mg twice daily): Repurposed; modest benefit in multiple SCA types and sporadic ataxia - best current option for symptom slowing
• Acetazolamide: Episodic ataxia (EA1, EA2)
• Buspirone: Some evidence for cerebellar ataxia
• Amantadine: Used in some forms of cerebellar ataxia
• Clonazepam: For cerebellar tremor
• Deep Brain Stimulation (DBS) of the ventral intermediate (VIM) nucleus of the thalamus: May reduce cerebellar tremor, though less effective for ataxia overall
• Baclofen: For spasticity if present

Neuromodulation (Emerging)

• Transcranial Direct Current Stimulation (tDCS) and Repetitive TMS (rTMS): Adjunctive; early evidence, increasingly studied as add-on therapy

Step 4: Special Considerations for a 60-Year-Old Female

1. Bone health: Falls risk is high in ataxia; supplement Vitamin D (recommended in patients over 50) and calcium to prevent fracture
2. Osteoporosis screening: Especially in a postmenopausal woman with reduced mobility
3. Cardiovascular risk: In Friedreich's ataxia, hypertrophic cardiomyopathy is a major concern - regular cardiac monitoring
4. Dysphagia: High aspiration risk with cerebellar dysarthria - early SLT referral
5. Cancer screening: A new onset of subacute cerebellar syndrome in a 60-year-old woman mandates breast, ovarian, and lung cancer workup before labeling as idiopathic

Summary Algorithm

New cerebellar ataxia in 60F
         ↓
Exclude structural (MRI brain) → Treat if found (surgery/thrombolytics)
         ↓
Check: antibody panel (anti-GAD65, anti-Yo, paraneoplastic panel),
       vitamins (B1, B12, E), TFTs, anti-gliadin Ab,
       syphilis/Lyme serology, drug/toxin history,
       cancer screening (mammogram, CT chest/abdomen/pelvis)
         ↓
Treat identified cause (see table above)
         ↓
If hereditary/sporadic/no treatable cause:
- Riluzole for symptom management
- Multidisciplinary rehabilitation
- Fall prevention, mobility aids, weighted cuffs
- DBS for refractory tremor
- Consider tDCS/rTMS (specialist centre)