Total Facial Nerve Decompression for Severe Traumatic Facial Nerve Paralysis: A Review of 10 Cases
Table 2
Electrophysiology, surgical timing and the results of facial decompression (Mo: month, OOc: orbicularis oculi, mV: microvolt, mA: milliampere, SMS: supramaximal stimulation, amp: amplitude, ET: excitation threshold, RE: right ear, LE: left ear, and MUP: motor unite potential).
No
EMG/ENoG
Loss %
Timing
Preop grade
Postop grade
(1)
Total axonal degeneration
—
1 mo
6
2
(2)
Total axonal degeneration
—
1.5 mo
5
2
(3)
Total axonal degeneration
—
2 mo
5
1
(4)
OOc; SMS RE; 25, LE; 100 mA ET RE; 17, LE; 2.1 mA No voluntary MUP
89%
1.5 mo
6
2
(5)
OOc; amp RE; 0.2, LE; 2 mV No voluntary MUP
90%
2 mo
6
3
(6)
OOc; amp RE; 2.3, LE; 0.2 mV No voluntary MUP
91%
25 days
6
2
(7)
OOc; amp RE; 0.3, LE; 2.8 mV ET RE; 44, LE; 6.4 mA No voluntary MUP
