Muscular disorders in tension-type headache

Area of Science:

• Neurology
• Pain Medicine
• Musculoskeletal Disorders

Background:

• Tension-type headache (TTH) diagnosis involves evaluating muscular disorders.
• Current diagnostic criteria for muscular involvement in TTH require further validation.
• Understanding the reliability of different diagnostic tests is crucial for accurate TTH assessment.

Purpose of the Study:

• To evaluate the diagnostic criteria for muscular disorders in tension-type headache.
• To compare the effectiveness of pericranial muscle tenderness, pressure pain thresholds, and quantitative electromyography (EMG) in diagnosing TTH-related muscular issues.
• To analyze the correlation and diagnostic accuracy of these methods.

Main Methods:

• A random sample of 735 adults (aged 25-64) underwent assessments for pericranial muscle tenderness and pressure pain thresholds.
• Quantitative electromyography (EMG) was performed on 547 subjects.
• Receiver Operating Characteristics (ROC) analysis was used to determine test discrimination and cut-off points.

Main Results:

• Local temporal muscle tenderness correlated strongly with total tenderness scores.
• Manual palpation for tenderness proved to be the most specific and sensitive diagnostic test.
• EMG and pressure pain thresholds demonstrated limited diagnostic value for TTH muscular disorders.

Conclusions:

• Manual palpation is recommended as a primary diagnostic tool for muscular disorders in TTH.
• Current diagnostic criteria may need revision based on the superior performance of manual palpation.
• Future research should consider the influence of the headache state on muscle tenderness measurements.