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Carpal Tunnel Syndrome

 Syn. CTS

Signs & Symptoms

 Burning of the first three digits #Criteria
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis] Cecil [ 1084]
Nocturnal pain
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis]
Burning of the radial half of the fourth digit #Criteria
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis] Cecil [ 1084]
Burning of the first three digits and the radial half of the fourth digit #Criteria
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis] Cecil [ 1084]

Physical Examination

 Both hands involvement
Ref: Cecil [ 1084]
predominant motor symptoms (negative symptom)
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis]
Impaired median nerve conduction across the carpal tunnel
Note: due to Nerve compression and damage to the myelin sheath, Nerve conduction studies
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis]

Lab / Serology

Imagin Study

 Prolongation of the motor latencies across the wrist
Ref: Cecil [ 1084]
Increased cross-sectional area of the median nerve
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis]
Unaffected sensory nerve action potentials (negative symptom)
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis]

Complication

Risk Factors

 Female
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis, uptodate]
Diabetic
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis, uptodate]
Rheumatoid arthritis
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis, uptodate]

Cause

 Compression of the median nerve as it passes beneath the flexor retinaculum
Ref: Uptodate [ Carpal tunnel syndrome: Clinical manifestations and diagnosis] Cecil [ 1084]

Other