Table 1.

Suggested Management Principles.

CTS severity	Electrodiagnostic findings	Intervention
CTS without MNW	None	Symptomatic treatment
Mild	Abnormal comparison studies/median sensory nerve abnormalities	Symptomatic treatment
Moderate	Prolonged distal motor latency to the abductor pollicis brevis with normal APB CMAP amplitude	Injections/surgery with progression
Severe	Above plus either reduced median to APB CMAP amplitude and/or abnormal needle EMG in the thenar muscles	Surgery if not contraindicated