Management of Raynaud's Phenomenon
All patients with Raynaud's phenomenon should begin with trigger avoidance and lifestyle modifications, followed by nifedipine as first-line pharmacotherapy if symptoms affect quality of life, with escalation to phosphodiesterase-5 inhibitors for inadequate response, and intravenous prostacyclin analogues reserved for severe refractory disease. 1, 2
Initial Assessment Priority
Before initiating any treatment, always evaluate for systemic sclerosis and other connective tissue diseases, as delayed diagnosis leads to digital ulcers and poor outcomes. 2 Look specifically for:
- Severe, painful episodes with digital ulceration (red flag for secondary Raynaud's) 1
- Systemic symptoms: joint pain, skin changes, dysphagia, weight loss, malaise, fatigue, photosensitivity, dry eyes, dry mouth 3
- Age at onset: older age suggests secondary disease 4
- Pattern of involvement: entire hand involvement rather than individual digits suggests secondary Raynaud's 3
Non-Pharmacological Management (Mandatory for All Patients)
These measures must be implemented before or alongside any pharmacotherapy: 2
- Cold avoidance: wear proper warm clothing including coat, mittens (not gloves), hat, insulated footwear, and use hand/foot warmers 1, 2
- Smoking cessation is mandatory as smoking directly worsens vasospasm 2, 5
- Discontinue triggering medications: beta-blockers, ergot alkaloids, bleomycin, clonidine 1, 2
- Stress management techniques to reduce attack frequency 2
- Avoid vibration injury and repetitive hand trauma, particularly in occupational settings 2
- Physical therapy with exercises to generate heat and stimulate blood flow 1, 2
Critical pitfall: Continuing triggering medications like beta-blockers will undermine all treatment efforts. 2
Pharmacological Treatment Algorithm
First-Line: Calcium Channel Blockers
Nifedipine (dihydropyridine-type calcium channel blocker) is first-line pharmacotherapy for both primary and secondary Raynaud's, reducing both frequency and severity of attacks with acceptable adverse effects and low cost. 1, 2 Meta-analyses of randomized controlled trials confirm efficacy. 1
- Typical dosing: Extended-release nifedipine 30 mg at bedtime 5
- Expected response: 70-80% respond with decreased severity and frequency, but 20-50% develop intolerable side effects 5
- Adverse effects: hypotension, vasodilatation, peripheral edema, headaches 4
- Alternative: Other dihydropyridine-type calcium channel blockers can be considered if nifedipine lacks benefit or is poorly tolerated 1
Second-Line: Phosphodiesterase-5 Inhibitors
For inadequate response to calcium channel blockers, add or switch to phosphodiesterase-5 inhibitors (sildenafil or tadalafil), which effectively reduce frequency and severity of Raynaud's attacks. 1, 2 These agents are also effective for both healing and prevention of digital ulcers, though prevention results are mixed. 1
- Limitation: Cost and off-label use may limit utilization 1
Third-Line: Intravenous Prostacyclin Analogues
For severe Raynaud's unresponsive to oral therapies, use intravenous iloprost (prostacyclin analogue), which has demonstrated efficacy in reducing frequency and severity of attacks. 1, 2 Iloprost is the most promising drug in management of secondary Raynaud's disease. 6
Management of Digital Ulcers
Prevention of New Digital Ulcers
Bosentan (endothelin receptor antagonist) is effective for preventing new digital ulcers, particularly in systemic sclerosis patients with multiple existing ulcers. 1, 2 Two large studies demonstrate that bosentan reduces the number of new digital ulcers, though it does not affect healing period. 4
- Alternative prevention options: Phosphodiesterase-5 inhibitors and prostacyclin analogues 1
Healing of Existing Digital Ulcers
For healing digital ulcers, use intravenous iloprost or phosphodiesterase-5 inhibitors, both with proven efficacy. 1, 2
- Local wound care: soap-and-water washes with either damp dressing or Silvadene cream 5
- Adjunctive therapy: pentoxifylline and antibiotics as needed 5
- Severe cases: If chronic non-healing or intractable pain despite medical therapy, fingertip amputation may be required, though healing is slow 5
Treatment Algorithm by Severity
Mild Raynaud's (Primary)
Moderate to Severe Raynaud's or Inadequate Response
- Add or switch to phosphodiesterase-5 inhibitors 1
Severe Refractory Raynaud's
- Consider intravenous prostacyclin analogues 1
- Critical pitfall: Delaying escalation in secondary Raynaud's leads to digital ulcers and poor outcomes; more aggressive therapy is required 2
Digital Ulcers Present
- Prevention: bosentan, phosphodiesterase-5 inhibitors, or prostacyclin analogues 1
- Healing: intravenous iloprost or phosphodiesterase-5 inhibitors 1
Additional Pharmacological Options (Limited Evidence)
- Fluoxetine (SSRI): might be considered for Raynaud's attacks, though evidence is limited to small studies 1
- Topical nitrates: can be used but limited by adverse effects including flushing, headache, and hypotension 4
- Minimal evidence: biofeedback, acupuncture, ceramic-impregnated gloves, antioxidants, essential fatty acids, Ginkgo biloba, L-arginine 1
Obsolete Treatments
Chemical or surgical sympathectomy are obsolete and without long-term positive effects. 6 Upper extremity sympathectomy has not been recommended for nonhealing finger ulcers in over 20 years. 5