대이개 신경 뒷가지 희생군과 보존군에서 감각 차이의 비교 = Comparative Study of Sensation with or without Preservation of Great Auricular Nerve during Parotidectomy

다국어 초록 (Multilingual Abstract)

Background and Objectives Whether to sacrifice the posterior branch of great auricular nerve (GAN) during parotidectomy is disputatious. This study was to provide a guideline for de-cision-making.
Subjects and Method Thirty-two patients who underwent parotidectomy due to parotid mass were randomized into two groups. Three patients who underwent further treatment were ex-cluded. Fourteen patients underwent classic parotidectomy by sacrificing GAN whereas 15 patients underwent surgery that preserved the nerve. A two-point discrimination test, sensation of light touch, sharp instrument, blunt instrument and temperature were evaluated preoperatively, and at 7 days, 1, 3, 6, 12 months and 45 months, postoperatively. Patients’ preference for the ope-ration time to preserve the nerve was also evaluated.
Results The mean preservation time was 156 seconds. There was no difference in touch sensa-tion, preoperatively, between the two groups. The two-point discrimination test of the infra-auricular area showed significant differences at 1 week postoperatively (p＜0.05). The two-point discrimination test of lobule showed significant differences at 1 month (p＜0.05), but these dif-ferences disappeared at 1 and 3 months. All measured data had no statistically sig-nificant differences at 3 and 6 months. At one year, light touch sensation of lobule and temperature sensa-tion of infra-auricular area showed significant differences (p＜0.05). Differences in tempera-ture were found at 45 months of follow-up. Of the patients, 95% wanted to preserve the nerve.
Conclusion The authors suggest that the posterior branch of GAN was preserved according to patients’ preference for the sensation of temperature in the infra-auricular area.

참고문헌 (Reference)

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