Enhanced management of the entire process of medical wastes, ranging from sorting collection, delivery, transport to temporary storage: compilation of the computerized management system for medical wastes: development of quality control inspection standards for medical wastes: all-staff training for the awareness of legal compliance for medical wastes, prevention of medical wastes from jeopardizing both human being and the environment.

Objective To investigate the prevalent status of hypertensionamong thelow insurance crowd in Shiyan urban districts.Methods According to the demands and diagnosis standard in 'China Hypertension Prevention and Cure Manual,2005',24 840 residents with low insurance in urban districts were examined on their blood pressure,while investigated on history of disease,family history,occupation and awareness on hypertension by face to face interview.Results Of 24 840 residents with low insurance in Shiyan urban districts,5 295 cases(21.30%) were diagnosed as hypertension,and 1,350 hypertensives had family history of hypertension.Of 5 295 hypertensives,there were 371 cases aged below 40 yrs,1 747 aged between 40 and 49 yrs and 3 177 aged above 50.Meanwhile,there were 3 105 cases with grade I hypertension,1 563 with grade II and 627 with grade Ⅲ hypertension.Conclusion The total hypertension prevalent rate among low insurance crowd of Shiyan urban districts was higher and the awareness rate was also lower.It should strengthen education on this crowd.

OBJECTIVE To observe the sterilization effect of nanometer photocatalysis air sterilizer mounted in hospital.METHODS We carried out a dynamic survey on air average numbers of colony through field experiment and practical operation.RESULTS The field experiment displayed that the air bacterium dissolution rate was 55.64-75.94% and the bacterium content degraded as time extended,after nanometer photocatalysis air sterilizer been used 1-2 h;the result of practical operation in four seasons of the year revealed that the average bacterium colony numbers in each ward region was lower than before sterilizer mounted,the air bacterium dissolution rate was 73-82.3% in the third ward region and 44.5-76.3% in the fourth ward region.CONCLUSIONS It is effective to use the nanometer photocatalysis air sterilizer to sterilize the air in hospital under the condition of inspection.The airflow of the central air conditioning can practice the air sterilization function more validly.

Peutz-Jeghers syndrome (PJS) presents in early childhood, and children have a higher risk of intussusception due to a smaller abdominal space than adults. Double-balloon enteroscopy (DBE) has been proven to be a safe and effective method for the diagnosis and treatment of small bowel lesions, but the efficacy and safety of its prophylactic polypectomy in children with PJS need to be determined. Data of 6 children (median age 10.6 years) diagnosed as having PJS from 2018 to 2020 were reviewed. DBE was performed 14 times, and 3 children were successfully relieved of intussusception after DBE treatment. The sizes of the resected intussusception polyps were 50 mm×60 mm, 40 mm×35 mm, and 50 mm×40 mm. Symptoms associated with polyps (abdominal pain, intussusception and obstruction) relieved after DBE in all children. No direct complications such as bleeding or perforation were found during the operation, and no recurrence of intussusception was found during follow-up. It can be seen that DBE polypectomy is safe and effective in the treatment of intussusception caused by PJS.