Overview
Cryotherapy is a therapeutic procedure using extreme cold (liquid nitrogen) to destroy abnormal skin tissue.
Cryotherapy is crucial for treating warts, actinic keratoses, skin tags, and other benign skin lesions.
Learn more in our comprehensive RxDx Dermatology Course
Indications
Viral warts
Pre-cancerous lesions
Benign growths
Benign lesions
Viral infection
Contraindications
Absolute Contraindications
Relative Contraindications
📋 Equipment Checklist
Check off items as you gather them:
Pre-procedure Preparation
Preparation includes patient assessment, lesion evaluation, informed consent, and understanding cryotherapy techniques.Step-by-Step Procedure
Step 1: Lesion Assessment
Evaluate lesion characteristics.
⚠️ Common Mistakes to Avoid:
- Wrong diagnosis
- Inadequate assessment
💡 Pro Tip:
Confirm diagnosis before treatment.
Step 2: Patient Preparation
Explain procedure and obtain consent.
⚠️ Common Mistakes to Avoid:
- Poor explanation
- Inadequate consent
💡 Pro Tip:
Explain expected outcomes.
Step 3: Application Technique
Apply liquid nitrogen appropriately.
⚠️ Common Mistakes to Avoid:
- Over-treatment
- Under-treatment
💡 Pro Tip:
Use appropriate technique.
Step 4: Treatment Duration
Monitor treatment time.
⚠️ Common Mistakes to Avoid:
- Too long
- Too short
💡 Pro Tip:
Use timer for consistency.
Step 5: Post-treatment Care
Provide wound care instructions.
⚠️ Common Mistakes to Avoid:
- Poor instructions
- Missed complications
💡 Pro Tip:
Give clear instructions.
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Post-procedure Care
Post-procedure care involves wound care, monitoring for complications, and follow-up for treatment response.Complications & Management
| Complication | Incidence | Signs | Management | Prevention |
|---|---|---|---|---|
| Blisters | 20-30% | Fluid-filled blisters | Drainage if needed | Proper technique |
| Scarring | 5-15% | Visible scar | Time, scar care | Gentle technique |
| Hypopigmentation | 10-20% | Light patches | Time, camouflage | Proper technique |
| Recurrence | 10-30% | Lesion returns | Repeat treatment | Adequate treatment |
Clinical Pearls
Always confirm diagnosis before treatment.
Use appropriate technique for lesion type.
Monitor treatment duration carefully.
Document treatment parameters.
Provide clear post-treatment instructions.
Consider cosmetic outcome.
Monitor for complications.