Objective To study the influence of carbon dioxide (CO2)gas temperature on recovery of patients after laparoscopic gastrointestinal operation.Methods 100 cases with gastrointestinal operation patients were selected and randomly divided into the experimental group and the control group with 50 patients in each.In the experimental group,pneumoperitoneum was established with CO2 gas heated to 37 ℃,and the control group used routine method to establish pneumoperitoneum.The items such as postoperative tracheal extubation time,anal exhaust time and extubation time were observed in two groups of patients.Results The endotracheal tube extubation time,anal exhaust time and extubation time in the experimental group were earlier than those in the control group.Conclusions Using CO2 gas heated to 37 ℃ to establish pneumoperitoneum during laparoscopic gastrointestinal operation can effectively promote the rehabilitation of patients after operation.

ObjectiveTo evaluate the application of chest-abdomen longitudinal diameter ratio,total lung area and lung longitudinal diameter in different gestational ages by two-dimensional ultrasonography.MethodsFive hundred and ninty-two fetus of normal singleton pregnancy between 18 and 40 weeks were ultrasonic scanned by standard 4-chamber view and fetus torso coronal section.The heart area,thoracic area,bilateral lungs pointed to the corresponding diaphragmatic dome gallery on the top of the vertical distance,diaphragmatic dome iterated top to the bottom of the fetal bladder distance were measured respectively.Related regression analysis was done on fitting total lung area and longitudinal diameter with pregnant increasing.ResultsA normal pregnancy fetal total lung area and lung longitudinal diameter were increased as long as the gestational age.The best-fit regression equations of total lung area was:Y =0.83 X +13.894,R2 =0.914;Lung longitudinal diameter was:Y =0.669 X + 3.124,R2 =0.892.Chest-abdomen longitudinal diameter ratio from 18 to 40 weeks gestation was in constant range:0.44 - 0.59.Conclusions Chest-abdomen longitudinal diameter ratio from 18 to 40 weeks gestation is in constant range.The normal pregnancy fetal total lung area and lung longitudinal diameter were increased as long as the gestational age.These parameters may be useful for the prenatal assessment of lung development.

Objective To master the epidemic prevalence and the risk factors of brucellosis in animals and human,and to provide a basis for making prevention strategies and measures to brucellosis in Chongqing Municipality.Methods Qijiang and Wansheng district of Chongqing Munipality were selected as investigation points.Feeding status of goats in feedlots was investigated,and blood samples of goats were collected for laboratory testing.Epidemiological survey in employees on feedlots,family members closely exposed with goats,and other focus groups such as stockbreeding and veterinary was conducted,and blood samples was collected for laboratory testing according to the principle of informed consent.Clinical features of infested persons were investigated.Blood samples were screened by plate agglutination test (RBPT) and tube agglutination test (SAT).Results A total of 582 households in the two districts were investigated.The number of positive households was 40 households.The positive rate of the households was 6.87％.A total of 20 105 goat blood samples were tested.Of them,989 blood samples tested positive.The positive rate was 4.92％.A total of 337 blood samples of the risk population from 22 towns of the two districts were tested.Of them,45 samples were positive,and the positive rate was 13.35％.Eleven people were active patients of brucellosis.The epidemic sites were distributed in 16 towns,which accounted for 73.73％.The difference of the positive rates between the two districts was not significant (x2 =0.37,P ＞ 0.05).The positive rate of brucellosis among male and female was 11.57％ (28/242) and 17.89％ (17/95),respectively.The age of brucellosis infection distributed from 2 years old to 83 years old.One preschool child and 3 students were identified positive.The positive rate of brucellosis among feeder was the highest,which accounted for 31.75％ (40/125).The difference of positive rate of brucellosis among different professions was significant (x2 =63.40,P ＜ 0.05).Conclusions There is not a brucellosis case among animals or people reported in Chongqing non epidemic areas of brucellosis,but there are lots of infection.Surveillance and prevention of brucellosis should be strengthened in Chongqing.