Bloodletting Therapy for Patients with Chronic Urticaria: A Systematic Review and Meta-Analysis

Area of Science:

• Integrative Medicine
• Dermatology
• Clinical Research

Background:

• Chronic urticaria (CU) is a common skin condition with limited treatment options.
• Bloodletting therapy has been anecdotally reported as effective for CU.
• No systematic reviews currently exist on bloodletting therapy for CU.

Purpose of the Study:

• To systematically review and meta-analyze the effectiveness and safety of bloodletting therapy for chronic urticaria.
• To assess disease activity control, response rates, recurrence rates, and adverse events associated with bloodletting therapy in CU patients.

Main Methods:

• Systematic review and meta-analysis of randomized controlled trials (RCTs).
• Inclusion of seven studies with 512 participants.
• Primary outcome: disease activity control. Secondary outcomes: response rate, recurrence rate, and adverse events.

Main Results:

• One trial indicated bloodletting plus medicine improved disease control compared to medicine alone (MD 0.67; p=0.04).
• Bloodletting therapy showed potential benefits in response rates (RR 1.34; p=0.003) and recurrence rates in some comparisons.
• No serious adverse events were reported with bloodletting therapy.

Conclusions:

• Bloodletting therapy shows potential as an effective and safe treatment for chronic urticaria.
• Current evidence is limited, underscoring the need for more rigorous, high-quality clinical trials.
• Further research is essential to validate the efficacy and safety of bloodletting for CU.