Fibromyalgia syndrome: Basic knowledge, diagnosis and treatment

Area of Science:

• Rheumatology
• Neuroscience
• Psychiatry

Background:

• Fibromyalgia syndrome (FMS) is a complex condition characterized by widespread pain, fatigue, and sleep disturbances.
• The exact etiology of FMS remains unknown, but a multifactorial model involving biological and psychosocial variables is proposed.
• Several factors, including depression, genetics, obesity, inactivity, childhood abuse, sleep problems, and smoking, predict FMS development.

Purpose of the Study:

• To elucidate the contributing factors and pathophysiology of Fibromyalgia syndrome.
• To outline diagnostic criteria and management strategies for FMS based on current evidence and guidelines.

Main Methods:

• Review of existing literature on the predisposition, triggering, and chronicity of FMS.
• Analysis of factors associated with FMS pathophysiology, including neuroendocrine, immune, and neurotransmitter systems.
• Examination of diagnostic approaches and recommended stepwise management strategies.

Main Results:

• Psychosocial stress and physical stressors can trigger FMS onset in predisposed individuals.
• Pathophysiological factors include altered sensory processing, HPA axis dysfunction, cytokine imbalances, neurotransmitter disturbances, and small fiber pathology.
• The German guideline recommends a stepwise approach, emphasizing patient education and non-pharmacological therapies like exercise and mind-body practices.

Conclusions:

• FMS is a heterogeneous disorder influenced by a complex interplay of biological and psychosocial factors.
• Effective management involves a multimodal approach, including patient education, non-pharmacological interventions, and pharmacotherapy when necessary.
• Recommended medications include amitriptyline, duloxetine, and pregabalin for symptom modulation.