Objective In order to finish radiotherapy, improve local control rate and prolong survival period, dysphagia of complete obstructive esophageal carcinoma was treated by sequential chemo-radiotherapy. Methods From Apr.1999 to Oct.2003, the 21 patients of complete obstructive esophageal carcinoma were analysed retrospectively.The 21 patients were thoracic esophageal carcinoma,which accounted for 2.4% in all of esophageal cancinoma patients treated by radiotherapy in the same period.They were divided into two groups:10 patients in group R received radiotherapy only, while 11 patients in group C + R received chemo-radiotherapy .For both groups, the same radiation technic was carried out by conventional fractionation, 180~200cGy/F,five times every week. For group C+R, 8 cases were treated with DF chemotherapy regimen, 3 with NP. 12~18 days After chemotherapy, radiotherapy was followed. Results In group R, 9 cases give up radiotherapy because dysphagia was not improved, one case was treated six weeks. Dysphagia was not improved in the ten patients. They died within 1~2 months from beginning of radiotherapy. Median overall survival was 40 days. In group C + R, Dysphagia was improved in the 11 patients from 1~7 days after chemotherapy. 10 patients finished radiotherapy apart from one whose life quality was poor. The quality of life was comparatively poor during and after radiotherapy. Myelosuppression was comparatively severe. Median overall survival was 14 months. There was statistically singnificant difference in two groups (P

Chromosomes, Human, Pair 14 ; Humans ; Ring Chromosomes ; Syndrome

To solve the problems in the illumination of the portable video monocular telescope for near-obser-vation. Some luminous lamp head and reflective lamp head were customerized for the telescope, and the lumi-nous lamp head was postpositively mounted at the side of the ocular lens, which or the reflective lamp head could be prepositively mounted at the side of the object lens. A wound pit on fresh pitaya was observed using portable video monocular telescope for near-observation equipped with illumination device or not. Luminous lamp head and re-flective lamp head custom-made was able to mount easily and gave the target ample illumination. Portable video monocular telescope for near-observation can be easily and cheaply equipped with luminous device giving ample il-lumination.

Objective To evaluate the current status of intestinal nematode infection in Shanghai and make recommendations for further control activities Methods Retrospective review of the control program was made based on the change of nematode prevalence in Shanghai area since the 1950s, and challenges under the current situation were analysed. Results The intervention measures included chemotherapy, health education, sanitary disposal of human excreta and safe water supply. With the control strategy, socio\|economical development and the change of farming patterns, the prevalence of intestinal nematode infection in population was reduced by 88\^5%, from 62\^6% in 1955 to 8\^2% in 2000. Among them, ascaris infection decreased by 89\^0%, from 52\^1% to 6\^3%, hookworm infection decreased by 99\^0%, from 12\^9% to 0\^1%, but pinworm infection was still as high as 18\^9% in 1999. Conclusion Prevalence of nematode infection in Shanghai was considerably reduced. To match it with the current socio\|economical development in the Municipality, however, more needs to be done. Sustainable control activities and surveillance are recommended.

Objective To understand the potential risk for schistosomiasis transmission caused by introduction of infection source from mobile population in Shanghai. Methods Field investigation was conducted in the suburb of Shanghai City by screening the mobile population living in Shanghai for more than 1 month and over 1 years old in a procedure of interviewing, serum indirect hemagglutination (IHA) test, and then fecal examination to detect the eggs with nylon sedimentation approach for those IHA positives. Results Among 2 931 mobile people investigated, 1 575 were male (53.74%) and 1 356 were female(46.26%); 138 out of 2 931 were positive in IHA test (4.71%). 1 938 (66.12%) out of 2 931 came from Schistosoma japonicum-endemic provinces and its positive rate in mobile population (5.99%) was significantly higher than those from the transmission-interrupted provinces (2.6%) (?2=10.28, P