Skip to main content

Table 2 Analysis of 37 patients transferred from other centers

From: Surgical management and the prognosis of iatrogenic facial nerve injury in middle ear surgery: a 20-year experience

Clinical characteristics

Gender

 male

18 (48.6%)

 female

19 (51.4%)

 Age (years)

35.1 ± 15.0 (7–62)

Side

 right

21 (56.8%)

 left

16 (43.2%)

Preoperative grade (H-B)

 V

13 (35.1%)

 VI

24 (64.9%)

Preoperative hearinga

 complete deafness

18 (48.6%)

 conductive hearing loss

10 (27.0%)

 mixed hearing loss

9 (24.3%)

Duration before revision surgery

  < 2 months

19 (51.4%)

 2–6 months

10 (27.0%)

  > 6 months

8 (21.6%)

Site of facial nerve injuryb

 tympanic segment

27 (73.0%)

 second genu

24 (64.9%)

 mastoid segment

8 (21.6%)

 geniculate ganglion

4 (10.8%)

Degree of facial nerve injuryc

 edema

7 (18.9%)

 sheath defective and edema

5 (13.5%)

 superficially transected

2 (5.4%)

 partially transected

4 (10.8%)

 completely transected

19 (51.4%)

Malformation of facial nerve

 anomalous course

1 (2.7%)

 bifurcation

1 (2.7%)

Inner ear injury

 yes

18 (48.6%)

 no

19 (51.4%)

Facial nerve management

 decompression (2 cases combined with axion realignment)

14 (37.8%)

 graft

19 (51.4%)

 Anastomosis

4 (10.8%)

Postoperative grade (H-B)

 I

6 (16.2%)

 II

6 (16.2%)

 III

18 (48.6%)

 IV

5 (13.5%)

 V

2 (5.4%)

  1. aPreoperative hearing: according to 2021 WHO classification of hearing loss
  2. bSite of facial nerve injury: 21 (56.8%) patients suffered from multisegment injury
  3. cDegree of facial nerve injury: superficially transected (< 1/3 of the circumference), partially transected (> 1/3 of the circumference)