To Compare the Efficacy and Complication of Nasal Prongs vs Nasal Mask CPAP in Neonates

CPAP refers to the application of positive pressure to the airway of a spontaneously breathing infant throughout the respiratory cycle

Influence of continuous pressure on the function of rabbit bone marrow stromal cells proliferation / 中国矫形外科杂志

[Objective]To investigate the influence of pressure on the proliferation of rabbit bone marrow stromal cells(MSCs) and explain the relationship of the hip prosthesis submerge and loosening with continuous pressure after revision of total hip replacement.[Method]A unit of MSCs pressure model was set up to load different pressures on MSCs cultured in vitro.[Result]MSCs showed more proliferation capacity under discontinuous pressure.MTT assay was used to determine the cell proliferation of primarily cultured MSCs under discontinuous pressure.The MSCs OD value of pressured groups was much smaller than the control group at different times.Various magnitudes and durations of the discontinuous pressure could significantly suppress MSCs proliferation with the magnitude-dependent.[Conclusion]At the early period after revision of total hip replacement,patients should lie and exercise on the bed until 6 weeks.Otherwise,the weight-bearing pressure may restrain MSCs proliferation which is harmful to union and may cause prosthesis submerge and loose.

Clinical application of skin expansion with easily self-controlled and continuous constant pressure / 中华医学美学美容杂志

Objective To study the effects of a self-controlled and totally-enclosed type perfusion skin and tissue expansion in which pressure was continuous and constant. Methods Totally-enclosed type perfusion system included single-used infusion apparatus, triplet, soft water storage bag, catheter, and common expander. Continuous pressure-constant system included inflatable infusion apparatus and common spring sphygmomanometer. Expander was filled from soft water storage bag which was put in inflatable infusion apparatus by crushed ball. The pressure of expander was controlled by patients according to pain threshold. 26 expanders were used in 20 patients in clinical practice. The volume of expander was about 100 ~ 400 ml. After 3~5 days from operation, water began to fill in the expander and stopped when the expansion area reached. Results The volume of expander was 120~640 ml and the duration of expansion was 10~16 days, average (13.6? 2.1) days, without any complication. Conclusions The tissue expansion with continuous and constant pressure and totally-enclosed perfusion is worth popularizing because of its easy preparation, simply operation, rapid expansion, safety and comfort.