Significant factors affecting the operation time for benign parotid tumor

Takeharu Kanazawa, Yasushi Ohta, Kazuo Goutsu, Katsuji Takeoda, Keiju Tsubaki, Kozue Kodama, Rika Inoue, Hajime Usubuchi, Yukiko Iino

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Tumors of the parotid gland are fairly frequent among head and neck tumors. Parotidectomy for benign tumors is necessary for diagnosis and therapy. Furthermore, acquiring the skill for this operation is a significant step in the training course of an otolaryngologist Thus, it is useful to analyze the operation time and determine the factors affecting it to evaluate the progress in the operation skill. To measure the operation time and determine the factors affecting it, 71 cases, including 43 cases of pleomorphic adenomas and 28 cases Warthin's tumor, were retrospectively reviewed to the determine if the operation time depended on the age, sex, operated side, presence of complications, BMI, bleeding volume, tumor size, tumor location, exposure of branches of the facial nerve, and experience of the surgeon. Multivariate analysis was used to determine the factors correlated with the operation time. The results revealed that the bleeding volume, tumor size, tumor location and experience of the surgeon were significantly correlated with the operation time, whereas age, sex, operated side, presentation of complications and BMI showed no correlation with the operation time. Furthermore, surgeons with the experience of operating 20-39 cases took almost the same time for the operation as the surgeon with the experience of operating more than 40 cases. Taken together, to shorten the operation time, the inexperienced surgeon should start with smaller tumors and surgery in the superficial lobe in the initial training period, and supervision by well-experienced supervised surgeons is required until 30-40 are undertaken.

Original languageEnglish
Pages (from-to)481-485
Number of pages5
JournalNippon Jibiinkoka Gakkai Kaiho
Volume111
Issue number6
DOIs
Publication statusPublished - 2008 Jun
Externally publishedYes

ASJC Scopus subject areas

  • Otorhinolaryngology

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  • Cite this

    Kanazawa, T., Ohta, Y., Goutsu, K., Takeoda, K., Tsubaki, K., Kodama, K., Inoue, R., Usubuchi, H., & Iino, Y. (2008). Significant factors affecting the operation time for benign parotid tumor. Nippon Jibiinkoka Gakkai Kaiho, 111(6), 481-485. https://doi.org/10.3950/jibiinkoka.111.481