To measure the structure relationship among indexes and different indexes groups based on the networkrelationship information. Methods: Tabu search algorithm was used as the concrete algorithm to study the composition ofindex groups and the structure relationship between them. Result: The results of simulation and real data show that Tabusearch algorithm accurately solve the division of indexes and measure the structure relationship among different groups.Conclusion: Tabu search algorithm measure the structure relationship among indexes and different indexes groups, whichextend to larger network and more complex situations.

Objective To compare the effect of postural changes on the mechanical ventilation in patients with acute respiratory distress syndrome ( ARDS ) .Methods A total of 40 ARDS patients with mechanical ventilation from January 2010 to December 2012 and without contraindications for mechanical ventilation in the prone position were selected , who were divided into the prone position ventilation group and the supine position ventilation group by random number table method , with 20 patients in each group .The changes of vital signs and arterial blood gas before and after mechanical ventilation were compared between the two groups, including the mean airway pressure , plateau pressure and airway resistance three days after treatment . Also, the mechanical ventilation time and the time taken to stay emergency room were compared between the two groups.Results Compared with before treatment , the T, P, MAP and PaCO2 after treatment all decreased in the two groups, with statistically significant differences (P<0.01);the PETCO2, pH, PaO2, PaO2/FiO2 after treatment all increased in the two groups , with statistically significant differences (P<0.01).There were no statistically significant differences between the two groups in T , P, PETCO2 , MAP, pH, PaO2 , PaCO2 ( P>0.05).The PaO2/FiO2 in the prone position ventilation group was (282 ±22) three days after treatment , which was higher than that of (245 ±21) in the supine position ventilation group three days after treatment , and the difference was statistically significant (t=6.18, P<0.01).The mean airway pressure, plateau pressure and airway resistance three days after treatment was (6.8 ±0.5) cmH2O, (17.1 ±2.0) cmH2O and (14.9 ± 1.2)cmH2O/(L· s) in the prone position ventilation group, respectively, which was (8.5 ±0.9) cmH2O, (20.6 ±2.3)cmH2O and (21.1 ±0.8)cmH2O/(L· s) in the supine position ventilation group , respectively, and the differences were statistically significant (t =7.38, 5.13, 18.83, respectively;P <0.01).The mechanical ventilation time and the time taken to stay emergency room in the prone position ventilation group were shorter than those in the supine position ventilation , and the differences were statistically significant ( t=9.007, 6.379, respectively;P <0.01).Conclusions Prone position ventilation can be more effective in improving oxygenation index and redressing hypoxemia , and has relatively little impact on the patients ’ airway, which is an ideal position of mechanical ventilation .

Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.