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Chinese Journal of Postgraduates of Medicine ; (36): 509-512, 2015.
Artigo em Chinês | WPRIM | ID: wpr-467694

RESUMO

Objective To investigate the safety and efficacy of endoscopic multi-band mucosectomy (EMBM) in the treatment of early esophageal cancer and intraepithelial neoplasia.Methods A retrospective analysis was made on the clinical data of 34 cases diagnosed with early esophageal cancer and intraepithelial neoplasia.All the patients accepted EMBM.The therapeutic effects and safety were summarized.Results A total of 34 patients with 36 lesions were successfully completed in the treatment of one session.The entire biopsy specimen was tested by pathological examination.High-grade intraepithelial neoplasia in 24 lesions,low-grade intraepithelial neoplasia in 4 lesions,intramucosal cancer in 6 lesions,a submucosal shallow cancer and a submucosal deep cancer were diagnosed.Clamps electric coagulation hemostasis was used during the operation in 2 bleeding cases.No delayed postoperative bleeding,subcutaneous emphysema and esophageal perforation happened.Two cases appeared esophageal stenosis after EMBM.Bougienage were used to relieve dysphagia.One case confirmed with deep submucosal lymphovascular invasion accepted surgery later in department of thoracic surgery.No local recurrence and metastasis were found in the other 33 cases during the 6-24 months of follow-up time.Conclusions EMBM is a minimally invasive,safe and effective method for the treatment of early esophageal cancer and intraepithelial neoplasia.EMBM is worthy of promotion.

2.
Journal of China Medical University ; (12): 897-900, 2015.
Artigo em Chinês | WPRIM | ID: wpr-479101

RESUMO

Objective To establish a simple method to extract the methylated ctDNA in urine using magnetic beads as solid phase adsorption carri?er with a specific design reagent system and extraction process,and evaluate its application feasibility for methylated gene detection in urine sample . Methods Fourty cases of methylated ctDNA were extracted in urine using magnetic beads. After methylated modification,the concentration and pu?rity of DNA was determined by ultraviolet spectrophotometer. Results The extraction of 50 mL urine can gain 61?200 ng/mL methylated ctDNA, and the OD260/280 was 1.8 ± 0.05. Conclusion There are methylated ctDNA exist in the urine which can be extracted by magnetic beads. The estab?lished extraction method is simple,effective,and with high purity.

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