Guillain-Barre syndrome associated with peginterferon alfa-2a for chronic hepatitis C: A case report

Table 2 Electromyography studies

Side	Muscle	Nerve	Root	Insertional activity	Fibrillations	Psw	Amp	Dur	Poly	Interphase pattern
Right	MedGastroc	Tibial	S1-2	Nml	Nml	Nml	Nml	Nml	0	Nml
Right	AntTibialis	Deep br peroneal	L4-5	Nml	Nml	Nml	Nml	Nml	0	25%

Nml: Normal; Psw: Positive sharp waves; Amp: Amplitude; Dur: Duration; Poly: Polyphase activity. Electrical activity of the muscles at rest (Insertional activity, Fibrillations, Psw) and with voluntary activation (Amp, Dur, Poly, Interphase) showing that most of the results were normal, reflecting that patient had an acute event of neurological symptoms and did not have a chronic ongoing muscle disease.