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J Acupunct Res > Volume 32(4); 2015 > Article
Suk, Lee, Ryu, Lee, Kim, Ryoo, Goo, Kim, Park, Seo, and Baek: Effectiveness of East-West collaborative hospital treatment on the prognosis of Bell’s palsy: A retrospective study
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This study was performed to confirm the effectiveness of East-West collaborative hospital treatment on the prognosis of Bell’s palsy.


We screened patients who visited the Facial Palsy Center in Kyung Hee University Korean Medicine Hospital at Gangdong between June 2006 and June 2014 by inclusion/exclusion criteria We reviewed the medical records of 270 patients, including demographics and results of electromyography. We tried to compare the recovery rate of Bell’s palsy in the medical records with that of the previous study by calculating the odds ratio after 2, 3 and 6 months from the onset.


The odds ratio between our data and that from the previous study after 6 months from the onset was 4 899. Additionally, the odds ratios after 2 and 3 months from the onset were 1.471 and 2.054, respectively. All the odds ratios showed statistical significance.


East-West collaborative hospital treatment showed significant effectiveness on the prognosis of Bell’s palsy.

Fig. 1
Flow chart
Fig. 2
Age distribution of patients with Bell’s palsy
Fig. 3
Onset distribution of patients with Bell’s palsy
Fig. 4
Distribution of EMG values in patients with Bell’s palsy
Table 1
House-Brackmann grading system
Grade Description Characteristics
I Normal Normal facial function all areas
II Mild dysfunction Gross: Slight weakness noticeable on close inspection on close inspection may have very slight synkinesis
At rest: normal symmetry and tone
  Forehead: motion is moderate to good function
  Eye: complete closure with minimal effort
  Mouth: slight asymmetry
III Moderate dysfunction Gross: obvious but not disfiguring difference between both the sides, noticeable but not severe synkinesis, contracture, or hemifacial spasm
At rest: normal symmetry and tone
  Forehead: slight to moderate movement
  Eye: complete closure with effort
  Mouth: slightly weak with maximum effort
IV Moderately severe dysfunction Gross: obvious weakness and/or disfiguring asymmetry
At rest: normal symmetry and tone
  Forehead: none
  Eye: incomplete closure
  Mouth: asymmetric with maximum effort
V Severe dysfunction Gross: only barely perceptible
At rest: asymmetry
  Forehead: none
  Eye: incomplete closure
  Mouth: slight movement
VI Total paralysis No movement
Table 2
Peitersen grading system
Grade Degree of palsy Description of palsy
0 None Normal function
I Slight Only visible when patient grimaces
II Moderate Visible with small facial movements
III Severe Function just visible
IV Complete No visible
Table 3
Number of patients with Bell’s palsy according to EMG values
Recovery EMG(%) p-value
<50 50~60 60~70 70~80 80~90 90~95 ≥95
After 2 months from
the onset for
HB grade 1
(88.9 %)
(90.9 %)
(82.4 %)
(85.0 %)
(46.3 %)
(16.7 %)
(0.0 %)
After 3 months from
the onset for
HB grade 1
(95.6 %)
(93.9 %)
(92.2 %)
(97.5 %)
(67.2 %)
(29.2 %)
(0.0 %)
After 6 months from
the onset for
HB grade 1
(97.8 %)
(97.0 %)
(100.0 %)
(100.0 %)
(88.9 %)
(64.7 %)
(28.6 %)

* p-value <0.001 by Linear by linear association

Table 4
Odds Ratio (OR)
Recovery OR 95 % confidence interval p-value
lower limit upper limit
2 months / HB grade 1 1.471 1.122 1.930 p<0.01*
3 months / HB grade 1 2.054 1.511 2.792 p<0.001**
6 months / HB grade 1 4.899 3.067 7.824 p<0.001**

*,** by chi-square test



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