Association of acute hepatitis B and acute myopathy: a case report

Table 2 Electromyography (EMG)/nerve conduction velocity (NCS) results

Neuron site	Nerve	Muscle	Result
Sensory NCS	L sural—Lat malleolus	L calf	Not obtainable
	R sural—Lat malleolus	R calf	Not obtainable
	L superficial peroneal—foot	L Lat leg	Not obtainable
Motor NCS	Tibial malleolus—abductor hallucis brevis	Wrist	Not obtainable
	Tibial malleolus—abductor hallucis brevis	Elbow	Not obtainable
	L common peroneal—extensor digitorum brevis (EDB)	Ankle	Not obtainable
	L common peroneal—extensor digitorum brevis (EDB)	Fibular head	Not obtainable
	R common peroneal—EDB	Ankle	Not obtainable
	R common peroneal—EDB	Fibular hand	Not obtainable
H-Reflex	L tibial—soleus	Knee	Not obtainable
H-Reflex	R tibial—soleus	Knee	Not obtainable
EMG	L TIB Ant		Mildly decreased
	L gastrocnemius—Lat		Mildly decreased
	L vastus lateralis		Early recruitment
	R vastus lateralis		Early recruitment
	R biceps		Early recruitment
	R deltoid		Early recruitment

Summary: (1) assessment motor and sensory nerve conduction was not possible at every neuron site; (2) on needle EMG examination, low-amplitude motor unit potentials (MUPs) with early recruitment were most prominent in proximal muscles of upper and lower limbs. Conclusion: The patient was found to exhibit (1) acute myopathic process and (2) chronic sensorimotor polyneuropathy. L, left; R, right; Lat, lateral; TIB, tibial; Ant, anterior

ISSN: 1752-1947