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6 results on '"Zheng, Yueyu"'

1. Recurrence of odontogenic keratocysts and possible prognostic factors : review of 455 patients

Author

Bing Liu, Zheng Yueyu, Yanfang Sun, Wu Tianfu, Nyimi-Bushabu Fidele, Yi-Fang Zhao, and Jin-Yuan Liu

Subjects
Adult, Male, medicine.medical_specialty, Subsequent Relapse, Enucleation, Perforation (oil well), Odontogenic Tumors, Lesion, 03 medical and health sciences, 0302 clinical medicine, Recurrence, Epidemiology, Humans, Medicine, Cyst, General Dentistry, Retrospective Studies, business.industry, Research, Retrospective cohort study, 030206 dentistry, Prognosis, medicine.disease, CIENCIAS MÉDICAS [UNESCO], Surgery, Otorhinolaryngology, Maxilla, Odontogenic Cysts, UNESCO::CIENCIAS MÉDICAS, Female, Oral Surgery, Neoplasm Recurrence, Local, medicine.symptom, business
Abstract

Background To describe epidemiological features of 565 Chinese patients with odontogenic keratocysts (OKC), to investigate possible prognostic factors related to recurrence, and to analyse features of recurrent OKC (rOKC). Material and Methods A retrospective chart review of 565 cases of OKC treated between 2003 and 2015 was undertaken. The probability of recurrence related to prognostic factors including large size, cortical perforation combined with involved teeth in the lumen of the cyst, inflammation, sites of the involved lesion, sex, and daughter cyst variables were analysed. The subsequent relapse of each OKC was compared. Results Patients ranged in age from 7 to 81 years (mean age, 28.4 years) and, of those affected, 66.9% were male and 33.1% were female. Mandibular OKC occurred in 63.01% and 36.99% occurred in the maxilla, 80.53% of patients had non-rOKC, 10.44% rOKC, and 9.03% had multiple OKC lesions. Enucleation with preservation of the involved teeth in the cystic lesion combined with cortical perforation was statistically associated with high recurrence rate, as were daughter cysts, and multilocular lesions. The number of recurrences and the average time (in years) to relapse decreased from the first relapse of OKC to the third relapse, and the difference was significant (P

Published
2019

4. Three-Dimensional Printed Plate-Guided 125I Brachytherapy for Malignant Parotid Tumors.

Author

Liu, Jinyuan, Wu, Tianfu, Man, Qiwen, Fidèle, Nyimi Bushabu, Zheng, Yueyu, Liu, Bing, and Fidèle, Nyimi Bushabu

Abstract

Purpose: The treatment of malignant parotid tumors with 125I brachytherapy is rarely reported. This study evaluated the efficacy and dose and response of 125I brachytherapy in patients with malignant tumors.Materials and Methods: From July 2014 through August 2017, 39 patients with malignant parotid tumors were treated with 125I brachytherapy. Thirty-five patients were treated with conservative surgical resection before brachytherapy. Four patients were treated with brachytherapy alone. Clinical outcomes and side effects were evaluated. Clinical factors were investigated to determine correlations with local control (LC) and side effects.Results: Mean follow-up was 25 months (range, 7 to 47 months). The LC rate was 87.2% and the overall survival rate was 97.4%. High tumor grade and large tumor showed a propensity for local recurrence. Acute skin toxicity occurred in 87.2% of patients and grade 3 and 4 radioepidermitis was found in 20.5% of patients. In total, 89.7% of patients with facial nerve dysfunction recovered within 12 months.Conclusions: 125I brachytherapy was a feasible treatment option for patients with malignant parotid tumors. Although side effects were minimal, strict follow-up was necessary for patients treated with a high dose. [ABSTRACT FROM AUTHOR]

Published
2018
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5. Recurrence of odontogenic keratocysts and possible prognostic factors: Review of 455 patients.

Author

Fidele, Nyimi-Bushabu, Zheng Yueyu, Yifang Zhao, Wu Tianfu, Jinyuan Liu, Yanfang Sun, and Bing Liu

Subjects
CHINESE people, SURGICAL enucleation, ODONTOGENIC tumors, TEETH, MAXILLA
Abstract

Background: To describe epidemiological features of 565 Chinese patients with odontogenic keratocysts (OKC), to investigate possible prognostic factors related to recurrence, and to analyse features of recurrent OKC (rOKC). Material and Methods: A retrospective chart review of 565 cases of OKC treated between 2003 and 2015 was undertaken. The probability of recurrence related to prognostic factors including large size, cortical perforation combined with involved teeth in the lumen of the cyst, inflammation, sites of the involved lesion, sex, and daughter cyst variables were analysed. The subsequent relapse of each OKC was compared. Results: Patients ranged in age from 7 to 81 years (mean age, 28.4 years) and, of those affected, 66.9% were male and 33.1% were female. Mandibular OKC occurred in 63.01% and 36.99% occurred in the maxilla, 80.53% of patients had non-rOKC, 10.44% rOKC, and 9.03% had multiple OKC lesions. Enucleation with preservation of the involved teeth in the cystic lesion combined with cortical perforation was statistically associated with high recurrence rate, as were daughter cysts, and multilocular lesions. The number of recurrences and the average time (in years) to relapse decreased from the first relapse of OKC to the third relapse, and the difference was significant (P<.05). Conclusions: Preservation of the involved teeth combined with cortical perforation appeared to be a potential prognostic factor associated with high recurrence. The follow-up evaluation period for rOKC with = 2 previous treatments should be shorter than for first-time rOKC. The decreasing average duration (years postoperatively) to relapse was related to the number of rOKCs, timing of relapse, and rOKC type. [ABSTRACT FROM AUTHOR]

Published
2019
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6. Three-Dimensional Printed Plate-Guided 125 I Brachytherapy for Malignant Parotid Tumors.

Author

Liu J, Wu T, Man Q, Fidèle NB, Zheng Y, and Liu B

Subjects
Adult, Aged, Combined Modality Therapy, Facial Nerve physiopathology, Facial Nerve radiation effects, Female, Humans, Male, Middle Aged, Neck Dissection methods, Parotid Neoplasms surgery, Retrospective Studies, Survival Rate, Treatment Outcome, Brachytherapy methods, Iodine Radioisotopes therapeutic use, Parotid Neoplasms diagnostic imaging, Parotid Neoplasms radiotherapy, Printing, Three-Dimensional, Radiotherapy Planning, Computer-Assisted methods, Radiotherapy, Image-Guided methods, Tomography, X-Ray Computed methods
Abstract

Purpose: The treatment of malignant parotid tumors with 125 I brachytherapy is rarely reported. This study evaluated the efficacy and dose and response of 125 I brachytherapy in patients with malignant tumors., Materials and Methods: From July 2014 through August 2017, 39 patients with malignant parotid tumors were treated with 125 I brachytherapy. Thirty-five patients were treated with conservative surgical resection before brachytherapy. Four patients were treated with brachytherapy alone. Clinical outcomes and side effects were evaluated. Clinical factors were investigated to determine correlations with local control (LC) and side effects., Results: Mean follow-up was 25 months (range, 7 to 47 months). The LC rate was 87.2% and the overall survival rate was 97.4%. High tumor grade and large tumor showed a propensity for local recurrence. Acute skin toxicity occurred in 87.2% of patients and grade 3 and 4 radioepidermitis was found in 20.5% of patients. In total, 89.7% of patients with facial nerve dysfunction recovered within 12 months., Conclusions: 125 I brachytherapy was a feasible treatment option for patients with malignant parotid tumors. Although side effects were minimal, strict follow-up was necessary for patients treated with a high dose., (Copyright © 2018 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.)

Published
2018
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