Table 3. Summary of the predictive role of the facial nerve IONM.

Facial nerve dehiscence was reported as 13 to 43%, and the probability of detecting a facial nerve dehiscence as IONM was reported as 89 to 100%.

Study (Year)	No. of Procedures	Device	Facial Nerve Dehiscence (%)	Facial Nerve Dehiscence Detected by IONM (%)
Pensak et al. (1994)	250	Xomed NIM-2	95 (38%)	88 (93%)
Noss et al. (2001)	262	In-house components	35 (13%)	31 (89%)
Choung et al. (2006)	100	Xomed NIM-2	43 (43%)	43 (100%)
Park et al. (this study)	173	Medtronics NIM 3.0	37 (21%)	37 (100%)