Mononeuropathy multiplex associated with systemic vasculitis: A case report

Table 4 Result of needle electromyography

Needle EMG	Follow-up (4 mo after onset)
Muscle	Spontaneous			MUAP			Interference
	IA	Fib	PSW	Amp	Dur	PPP	Pattern
Lt. first dorsal interosseous	Normal	None	2+	Normal	Normal	Normal	Reduced
Lt. extensor carpi radialis longus	Normal	None	None	Normal	Normal	Normal	Complete
Lt. biceps	Normal	None	None	Normal	Normal	Normal	Complete
Rt. tibialis anterior	Normal	3+	3+	Normal	Long	Increased	Single
Rt. gastrocnemius (medial)	Normal	3+	3+				None
Rt. abductor hallucis	Normal	1+	1+				None
Lt. tibialis anterior	Normal	None	None	Normal	Normal	Normal	Complete
Lt. gastrocnemius (medial)	Increased	None	None	Normal	Normal	Normal	Complete

IA: Insertional activity; Fib: Fibrillation; PSW: Positive sharp waves; MUAP: Motor unit action potential; Amp: Amplitude; Dur: Duration; PPP: Polyphasicity.