Objective:To establish a derivative gas chromatography method for quantitative determination of hydra-zine hydrate in afatinib maleate.Methods:Acetone-glacial acetic acid solution and DB-225 capillary column(0.25 mm×30 m × 0.25 μm)and FID was used to separate andquantitative decermine hydrazine hydrate.Results:Excellent linearity showed within the range of 1.258-50.34 μg·mL-1(r＞0.999),detection limit was 0.001％,and the recovery rate was 91.7％-107.2％.Conclusion:The method shows low testing cost,satisfac-tory repeatability,simplicity and convenience,and is valid in derivative separation and analysis of hydrazine hydrate in afatinib maleate.

Objective: To explore the clinical features and complications of foreign bodies in the upper gastrointestinal tract in children and to investigate the effectiveness of endoscopic management. Methods: Data of patients with foreign bodies in upper gastrointestinal tract were collected retrospectively at Endoscopy Center, the Children's Hospital, Zhejiang University School of Medicine, from January 2011 to December 2016. Clinical characteristics, the types of foreign bodies, the location and duration of foreign body impaction were summarized. The risk factors of complications and endoscopic removal failure were analyzed by using Logistic regression analysis. Results: A total of 1 334 patients (825 males and 509 females) were enrolled. The median age was 2.5 years, with a range from 0.25 to 15 years and peak age 1-3 years. Twenty patients had esophageal diseases. The most common foreign body ingested was coin (n=964, 72.3%). Foreign bodies were most commonly located in the esophagus (n=1 002, 75.1%), especially in the upper esophagus (n=857, 85.5%). The duration of foreign body impaction ranged from 3 hours to 5 years. Among 1 334 patients, 252 patients (18.9%) developed complications, including ulcers (n=101, 40.0%) and perforations(n=13, 5.2%). The success rate of endoscopic removal was 96.6% (n=1 288). By Logistic regression analysis, sharp foreign body ingestion (OR=6.893, 95%CI: 4.421-10.746) , esophageal impaction (OR=5.253, 95%CI:3.352-8.233) and foreign body impaction longer than 24 hours (OR=4.336, 95%CI:3.091-6.082) were risk factors of complications. Sharp foreign body ingestion was the risk factor of endoscopic failure (OR=5.372, 95%CI:2.773-10.406) . Conclusions Coin is the most common foreign body in upper gastrointestinal tract. Sharp foreign bodies impacted in the esophagus over 24 hours increase the risk of complications. Endoscopic removal of foreign bodies from the upper gastrointestinal tract in children has a high success rate. Sharp foreign body ingestion increases the risk of failure in endoscopic removing.

Objective: To study the effect of continuous nursing care on quality of life in patients with rheumatoid arthritis after discharge. Methods: Patients with rheumatoid arthritis who were admitted to hospital from August 2016 to August 2017 were selected as the study subjects. According to the random number table method, they were divided into the control group and the research group, and the lost cases were eliminated. There were 99 cases in the control group and 94 cases in the research group. The control group was given routine care, and the research group conducted continuous nursing care measures on the basis of the control group. The morning stiffness time, pain score, disease activity, patient health status and nursing satisfaction of the two groups were observed before and 6 weeks after discharge. Results: Six weeks after discharge, the morning stiffness time (23.76±12.76) min of the research group was significantly higher than that of the control group (38.22±14.53) min, the difference was statistically significant (t=3.865, P<0.05). Six weeks after discharge, the VAS (2.01±0.68) and HAQ (0.42±0.34) points of the research group were lower than those of the control group (4.17±1.30), (0.92±0.63) points, the difference was statistically significant (t=4.073, 3.916, P<0.05). The nursing satisfaction of the research group was 94.68%(89/94), and that of the control group was 78.79%(78/99), and the difference was statistically significant (χ²=9.416, P < 0.05). Conclusions The implementation of continuous care mode after discharge from patients with rheumatoid arthritis is beneficial to alleviate clinical symptoms such as morning stiffness and pain. Moreover, it can also improve patient health and quality of life, increase risk of disease progression, and care satisfaction is high which can help to protect the harmony between nurses and patients.