To synthesize available evidence evaluating the benefits and adverse effects of peripheral nerve block in patients with medication-overuse headache (MOH) compared to standard care or other treatments, including specific therapies.
Key Findings:
Peripheral nerve blocks can reduce headache intensity and frequency in MOH patients, which may inform treatment strategies.
Efficacy may be lower in MOH compared to other headache types, with failure rates up to 44%, indicating a need for careful patient selection.
Combined treatment with preventive medication may enhance the effectiveness of peripheral nerve blocks, suggesting a multimodal approach.
Interpretation:
Peripheral nerve blocks may serve as a transitional therapy during detoxification from overused medications, but uncertainties regarding their efficacy and safety in MOH persist, warranting further investigation.
Limitations:
The systematic review may not encompass all relevant studies, potentially biasing results.
Lacks GRADE approach for assessing evidence certainty, which could affect the reliability of conclusions.
Potential adverse effects of the procedure were not thoroughly addressed, raising concerns about safety.
Conclusion:
Further research is needed to establish the role of peripheral nerve blocks in MOH management, particularly regarding their long-term efficacy and safety.
