Comparison of surgical techniques for benign parotid tumours: a multicentre retrospective study |
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Authors: | C.Y. Zheng R. Cao M.H. Gao Z.Q. Huang M.C. Sheng Y.J. Hu |
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Affiliation: | 1. Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Huzhou University, Wuxing District, Huzhou, Zhejiang, PR China;2. Department of Oral and Maxillofacial Surgery, Second People’s Hospital of Changshu, Yushan District, Changshu, Jiangsu, PR China;3. Department of Oral and Maxillofacial Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, Guangdong, PR China;4. Department of Oral–Maxillofacial Head and Neck Oncology, Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Huangpu District, Shanghai, PR China |
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Abstract: | This study aimed to compare the outcomes of three surgical techniques for the treatment of patients with benign parotid tumours: superficial parotidectomy (SP; group 1), partial superficial parotidectomy (PSP; group 2), and ultrasonic scalpel-assisted minimal extracapsular dissection (US-MECD; group 3). Groups 1 and 2 received the conventional surgical technique, while group 3 underwent surgery with an ultrasonic scalpel. A total of 281 patients treated during 2012–2016 were included: 98 in group 1, 91 in group 2, and 92 in group 3. The mean surgical time and blood loss during surgery, as well as drainage time and amount, were significantly lower for US-MECD (P < 0.01). The great auricular nerve and parotid fascia were both preserved with US-MECD (P < 0.01), while the rate of capsule rupture with US-MECD was slightly higher than in the other groups (P > 0.05). There was less transient facial nerve paralysis and Frey syndrome with US-MECD (P < 0.01). No significant difference in wound infection, sialocele, or permanent facial nerve paralysis was observed among the three groups. Patients enrolled during 2012–2013 were selected to evaluate the recurrence rates, and no statistically significant differences were found among the groups. In conclusion, US-MECD showed similar effectiveness and fewer side effects than SP and PSP. The long-term effects of the new technique require further study. |
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Keywords: | benign parotid gland tumour superficial parotidectomy partial superficial parotidectomy ultrasonic scalpel-assisted minimal extracapsular dissection |
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