內(nèi)鏡治療早期賁門(mén)癌、拉網(wǎng)篩查食管癌、頭頸部癌合并食管癌的相關(guān)研究
[Abstract]:Part I. Retrospective study of endoscopic mucosal resection and submucosal dissection in the treatment of early esophagogastric junction lesions (Siewert type II). Preface: With the development of endoscopic treatment technology, endoscopic treatment of early esophagogastric junction lesions has become a choice. It is understood that no literature has reported so far. We conducted a retrospective study to compare the feasibility, safety and efficacy of endoscopic submucosal dissection (ESD) and mucosal resection (EMR) in the treatment of early esophagogastric junction lesions. The study included 130 patients with early esophagogastric junction lesions treated with endoscopy, 52 with EMR, 78 with ESD. Endoscopic operation time, complications, block resection rate, complete resection rate and recurrence rate were the main indicators of this study. There was no significant difference between ESD group and EMR group (P 0.05). The operation time of ESD group was longer than that of EMR group (64.4+33.9 min vs 22.1+8.0 min; P 0.05). Complications in ESD group were more likely to occur (16.7% vs 3.8%; P 0.05), including bleeding (7.7% vs 3.8%), perforation (5.1% vs 0%) and postoperative stenosis (5.1% vs 0%). ESD group had a lower recurrence rate than EMR group (0% vs 7.7%; P 0.05). Conclusion: ESD has a higher technical difficulty than EMR in the treatment of early esophagogastric junction lesions, but ESD has a higher overall resection rate and complete resection rate than EMR. The ESD follow-up results also showed a low recurrence rate. Therefore, these results suggest that endoscopic submucosal dissection and endoscopic mucosal resection are significantly different in the treatment of early lesions at the esophagogastric junction. Endoscopic submucosal dissection is superior to endoscopic mucosal resection, especially for lesions larger than 14 mm in diameter. Endoscopic mucosal resection can reach the standard of block resection, but it is still a choice for the treatment of early esophagogastric junction lesions. Part II: Application of CytospongeTM combined with p53 immunohistochemical staining in screening early esophageal cancer and precancerous lesions. Foreword: China is one of the countries with the highest incidence of esophageal squamous cell carcinoma. Endoscopic iodine staining screening has been carried out in high-risk areas of esophageal cancer. In view of the cost, technical and risk problems of endoscopic-based screening in all high-risk groups, we need a simple, low-cost method as a primary screening tool. A prospective cohort study was conducted to determine the feasibility, safety and efficacy of CytospongeTM combined with p53 immunohistochemical staining in screening early esophageal cancer and precancerous lesions. Materials and Methods: The median age of 87 subjects was 58 years (24-70 years). Fifty-two male subjects (59.8%) and 35 female subjects (40.2%) were enrolled in the study. All subjects underwent screening, completed questionnaires, and underwent endoscopy or endoscopic treatment. Results: According to the pathological diagnosis after biopsy or endoscopic treatment, 28 normal esophagus, 11 esophagitis and 12 mild SARS were included in the study. Type I hyperplasia (LGIN), moderate atypical hyperplasia (MGIN) in 13 cases, severe atypical hyperplasia (HGIN) in 14 cases and early esophageal carcinoma (EESCC) in 9 cases. The sensitivity of CytospongeTM to detect mild atypical hyperplasia (LGIN) and moderate atypical hyperplasia (MGIN) in esophageal squamous epithelium was lower than 10% with atypia as a marker. The sensitivity and specificity for screening severe atypical hyperplasia and early esophageal squamous cell carcinoma were 70% and 93.8% respectively, while p53 positive atypical squamous cells (p53 + Atypia) were used as markers for screening severe atypical hyperplasia (HGIN) and early esophageal squamous cell carcinoma (EESC). Conclusion: CytospongeTM is a simple, safe and easy-to-accept screening tool. The sensitivity of CytospongeTM in screening for severe atypical esophageal hyperplasia and early esophageal cancer can reach about 70%, but it is not expected to increase the sensitivity by using p53 as a biomarker. Part III. Preface: Head and neck squamous cell carcinoma (HNSCC) patients, especially in the oral cavity, oropharynx and hypopharynx, often accompanied by esophageal squamous cell carcinoma (ESCC). HNSCC accompanied by ESCC is usually explained by "regional carcinogenesis". Multiple primary tumors need more. Materials and Methods: Eight patients with esophageal carcinoma complicated with early hypopharyngeal carcinoma underwent endoscopic submucosal dissection. Among them, 2 patients with hypopharyngeal lesions were double primary carcinoma, i.e. 10 lesions. Three patients underwent endoscopic mucosal resection via abdominal approach for early esophageal cancer. In addition, tumor specimens from 8 patients with head and neck squamous cell carcinoma complicated with esophageal squamous cell carcinoma were collected. Results: Eight patients with esophageal carcinoma complicated with early hypopharyngeal carcinoma (10 lesions) underwent endoscopic submucosal dissection. All patients achieved total resection, with a total resection rate of 100%. Because of atypical hyperplasia, 8 lesions accorded with complete resection, and the complete resection rate was 80%. All cases had no complications and no recurrence occurred during follow-up. Three patients with head and neck squamous cell carcinoma had stenosis of the esophageal entrance or cervical esophagus caused by previous radiotherapy, chemotherapy or surgery, which resulted in the failure of general endoscopy. Endoscopic mucosal resection of early esophageal carcinoma via abdominal approach was successfully performed. In this group of patients, no complications occurred except one case of postoperative esophageal stricture, and no local recurrence was found during the follow-up period. The results of gene detection in 8 cases of head and neck squamous cell carcinoma complicated with esophageal squamous cell carcinoma were as follows: 1. The plasma gene showed a high degree of consistency, and the plasma free gene also showed a certain mutation site, although compared with the corresponding tumor tissue, this mutation site is less, but it is far more than the corresponding peripheral blood cell mutation site; 2,5 mutation sites (EGFR 8-p.E330*/13-p.P512L; ERBB212; -p.L485/20-p.D821N; NRAS 5-p.K170N; PIK3CA 11-p.V580E, 14-p.H701L; RB12-p.R46S/6-p.L199*) only appeared in head and neck squamous cell carcinoma of the same patient, but did not appear in esophageal carcinoma. Conclusion: Endoscopic submucosal dissection is safe, effective and less invasive in the treatment of esophageal carcinoma with early hypopharyngeal carcinoma. Meanwhile, endoscopic mucosal resection of early esophageal cancer through abdominal approach may be used in patients who were previously unable to be treated by endoscopy for head and neck squamous cell carcinoma. In addition, there are differences between esophageal cancer and hypopharyngeal cancer in gene mutation sites, which can help to determine whether the tumor is metastatic or dual primary, and guide the next step of accurate targeted therapy.
【學(xué)位授予單位】:北京協(xié)和醫(yī)學(xué)院
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2016
【分類(lèi)號(hào)】:R735;R739.91
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