ABSTRACT
Objective To summarize the medical security experience in first-aid and resuscitation for astronauts at the exit of capsule after the spacecraft returns to the main landing site in the process of human spaceflight in China,and thus to provide a powerful security measures for Chinese aerospace medicine.Methods The medical support experiences were summarized in human spaceflight from "Shenzhou V" to "Shenzhou X",relevant reports on emergency rescue and resuscitation were consulted in in-orbit process and after emergency return and landing for domestic and foreign astronauts,astronauts' physiological changes in cardiopulmonary resuscitation were analyzed during emergency return,and then,corresponding strategies were proposed and tested in practice (actual combat) by combining with the flight characteristics of the spacecraft "Shenzhou XI".Results On the basis of the original emergency treatment,the countermeasures for the cardiopulmonary resuscitation were proposed after the spacecraft returned to the main landing site in human spaceflight,the emergency equipment was adjusted,the emergency procedures were optimized,and anti-fog glidescopes were added,laryngeal masks were introduced to perform supraglottic ventilation as the quickest and most effective airway opening measure on site.In addition,ultrasound examination was applied in practice as an important treatment and assessment method for basic life support and advanced life support.All these could ensure the rescuing ability on cardiopulmonary resuscitation during their stay in space for the medium-term and after their return to the main landing site.Conclusions During the return of the astronauts of the spacecraft "Shenzhou XI" to the main landing site,the first aid and support program had been improved specifically and the process had been optimized to ensure the successful completion of medical security mission of China's human spaceflight.
ABSTRACT
Objective To ensure the medical security of the astronauts,new targeted strategies were adopted after summarizing the experience in Chinese astronauts rescue and medical aid at the main landing site,the specialty and characteristics of landing were analysied.Methods Search the publications about astronaut medical aid domestic and abroad,summarize the rescue and medical aid experiences from Shenzhou 5 to Shenzhou 10.In consideration of prolonged on-orbit time,the cold weather conditions at the landing zone of Shenzhou 11,new targeted strategies were presented.Results On the basis of the original helicopter emergency platform and first aid equipment,the emergency aid procedures were optimized,personal warm clothing,a heat preservation box,insulation blanket,self-heating pads and intraosseous rapid infusion system were used to ensure the medical security of astronauts in cold weather at the main landing site.Conclusions With the procedures optimized and the targeted strategies performed,the astronauts' s rescue and medical aid project was fully meet the cold and complex conditions at main landing site.
ABSTRACT
Objective To evaluate the therapeutic effect of modified dual plating and less invasive stabilization system(LISS) in the complex fractures of tibial plateau.Methods One hundred and sixty-eight patients with complex fractures of tibial plateau were divided into two groups by the therapeutic methods,89 patients were in modified dual plating group while 79 patients were in LISS group.The advantages and curative effect of two groups were retrospectively analyzed.Results The excellent and good rate in modified dual plating group was slightly higher than that in LISS group [89.9％ (80/89) vs.86.1％ (68/79)],and there was no significant difference (P ＞ 0.05).No patient occurred deep site infection,severe nerve damage,phlebothrombosis in two groups.In modified dual plating group,the operation time and bleeding volume was (89.2 ± 13.6) min and (188.4 ± 45.6) ml,the hospital stay and healing time was (16.5 ± 1.8) d and (13.3 ±2.1) months.In LISS group,the operation time and bleeding volume was (74.3 ± 12.5) min and (236.5 ±65.5) ml,the hospital stay and healing time was (16.7 ± 2.1) d and (11.4 ± 1.5) months.There was no significant difference (P ＞ 0.05).Conclusion The therapeutic effect of modified dual plating and LISS have no significant difference for complex tibial plateau fractures.