Table 1.

The Evaluation of House–Brackmann Facial Nerve Grading System and Nerve Conductivity and Electromyography Results

Session	Level HBFNGS	Regional HBFNGS	Session	Level HBFNGS	Regional HBFNGS
1	4	4, 4, 3, 3	16	3	3, 1, 1, 1
2	4	4, 4, 3, 3	17	2	2, 1, 1, 1
3	4	4, 4, 2, 2	18	2	2, 1, 1, 1
4	4	4, 4, 2, 2	19	2	2, 1, 1, 1
5	4	4, 3, 2, 2	20	2	2, 1, 1, 1
6	4	4, 3, 2, 2	21	2	2, 1, 1, 1
7	4	4, 2, 1, 1	22	2	2, 1, 1, 1
8	4	4, 2, 1, 1	23	2	2, 1, 1, 1
9	3	3, 1, 1, 1	24	2	2, 1, 1, 1
10	3	3, 1, 1, 1	25	2	2, 1, 1, 1
11	3	3, 1, 1, 1	26	2	2, 1, 1, 1
12	3	3, 1, 1, 1	27	2	2, 1, 1, 1
13	3	3, 1, 1, 1	28	2	2, 1, 1, 1
14	3	3, 1, 1, 1	29	1	1, 1, 1, 1
15	3	3, 1, 1, 1	30	1	1, 1, 1, 1

EMG result		First examination (14th session)		Second examination (29th session)
Reflex blink examination
Left N.V1 stimulation		R1 latency is normal, R2 latency is normal, normal R2C latency		R1 and R2 are normal, normal R2C
Right N.V1 stimulation		Elongated R1 latency, longitudinal R2 latency, normal R2C latency		R1 and R2 are normal, normal R2C latency
Immediate response
Left N.VII stimulation		Normal CMAP amplitude		—
Right N.VII stimulation		Normal CMAP amplitude. CMAP amplitude difference >0.5, right versus left		Normal CMAP amplitude
EMG of the left frontal muscle		Normal MUAP, normal recruitment, spontaneous activity (-)		—
EMG of the right frontal muscle		Recruitment (-), spontaneous activity (+), positive sharp wave form		Normal MUAP, recruitment (-), spontaneous activity (-)
Conclusion		Examination of NCV and EMG showed an image in accordance with the right peripheral right N.VII axonal lesion, still visible signs of denervation		Examination Bilnk reflex, NCV and EMG of the right facial nerve are currently within normal limits

CMAP, compound muscle action potential; EMG, electromyography; HBFNGS, House–Brackmann facial nerve grading system; MUAP, motor unit action potential; NCV, nerve conduction velocity.