Background/Aims: The aim of this study was to analyze the chronological changes in postoperative complications in surgical ulcerative colitis patients over the past decade in China and to investigate the potential parameters that contributed to the changes. Methods: Ulcerative colitis patients who underwent surgery during 2008–2017 were retrospectively enrolled from 13 hospitals in China. Postoperative complications were compared among different operation years. Risk factors for complications were identified by logistic regression analysis. Results: A total of 446 surgical ulcerative colitis patients were analyzed. Fewer short-term complications (24.8% vs. 41.0%, P=0.001) and more laparoscopic surgeries (66.4% vs. 25.0%, P<0.001) were found among patients who received surgery during 2014–2017 than 2008–2013. Logistic regression suggested that independent protective factors against short-term complications were a higher preoperative body mass index (odds ratio [OR], 0.870; 95% confidence interval [CI], 0.785–0.964; P=0.008), laparoscopic surgery (OR, 0.391; 95% CI, 0.217–0.705; P=0.002) and elective surgery (OR, 0.213; 95% CI, 0.067–0.675; P=0.009). The chronological decrease in short-term complications was associated with an increase in laparoscopic surgery. Conclusions Our data revealed a downward trend of short-term postoperative complications among surgical ulcerative colitis patients in China during the past decade, which may be due to the promotion of minimally invasive techniques among Chinese surgeons.

Objective To investigate the current status of job burnout among anesthetists in Ningxia and to analyze its related risk factors.Methods A total of 310 anesthetists from 30 public hospitals in Ningxia were conducted to collect data on the job burnout by Maslach Burnout InventoryHuman Services Survey (MBI-HSS).The factors associated with severe job burnout and its three domains (high emotional exhaustion,high depersonalization and low personal accomplishment) were included in the multinomial logistic regression analysis.Results The incidence of job burnout and its three domains (high emotional exhaustion,depersonalization and low personal accomplishment) were 18 (5.81％) cases,134 (43.22％) cases,35 (11.29％) cases and 128 (41.29％) cases,respectively.Multinomial logistic regression analysis results indicated that the risk degree associated with job burnout was master and higher degree (OR=4.695,95％CI 1.556-4.172).The risk facts associated with three components of job burnout were work time per week [40-60 h (OR=4.420,CI 2.504-7.802);≥60 h (OR =7.469,95％CI 1.758-31.733)] and tertiary hospital (OR =1.847,95％oCI 1.112-3.069);master and higher degree (OR=2.306,95％CI 1.032-5.155),working years [6-15 years (OR=0.358,95％CI 0.135-0.949)] and cases of anesthesia per year [≥390 cases (OR =3.352,95％CI 1.301-8.639)];secondary hospital (OR =1.717,95％CI 1.045-2.823).Conclusion This survey indicates that job burnout exists among anesthetists in Ningxia and is mainly displayed in emotional exhaustion and low personal accomplishment domains.Master and higher degree tend to occur serve job burnout.

Objective To investigate the role of orexin-A in doxapram-induced promotion of emergence from general anesthesia in patients.Methods Forty-four patients of both sexes,aged 18-60 yr,with body mass index of 21-25 kg/m2,of American Society of Anesthesiology physical status Ⅰ or Ⅱ,scheduled for elective lumbar surgery under general anesthesia,were divided into 2 groups (n =22 each) using a random number table:control group and doxapram group.Anesthesia was induced by intravenously injecting propofol,sufentanil and cisatracurium.The patients were mechanically ventilated after tracheal intubation.Anesthesia was maintained by inhaling sevoflurane and target-controlled infusion of remifentanil.Sevoflurane inhalation and remifentanil infusion were stopped at the end of operation,oxygen flow rate was adjusted to 6 L/min,doxapram 0.5 mg/kg were intravenously injected at the same time in doxapram group,and the equal volume of normal saline was given in control group.The emergence time and extubation time were recorded.On admission to operating room (T0),at 1 h after anesthesia induction (T1) and 5 and 30 min after tracheal extubation (T2,3),arterial blood samples were collected for determination of blood glucose concentrations and plasma orexin-A concentrations (by radioimmunoassay).Results Compared with the baseline at T0,blood glucose concentrations were significantly decreased at T1 and increased at T3,and plasma orexin-A concentrations were increased at T2 in two groups (P ＜ 0.05).Compared with control group,the time to eye opening and extubation time were significantly shortened,plasma orexin-A concentrations were increased at T2 (P＜0.05),and no significant change was found in blood glucose concentrations at each time point in doxapram group (P＞0.05).Conclusion The mechanism by which doxapram promotes emergence from general anesthesia may be related to increasing plasma orexin-A concentrations in patients.

Objective To explore the application effects of three-dimensional teaching mode for clinical anesthesiology. Methods 43 students were selected into control group, who were from class one, grade 2010 in the Department of Anesthesiology, Ningxia Medical University. 42 students were selected into observation group, who were from class two, grade 2010 in the Department of Anesthesiology, Ningxia Medical University. The traditional teaching mode were used for the students in control group during the teaching of clinical anesthesiology, while three-dimensional teaching mode were used for the students in observation group during the teaching. At the end of teaching, the teaching results were compared between the control group and the observation group, mainly including the usual scores evaluated from an anaesthesia plan plus an anaesthesia case discussion, and the final scores. The teaching satisfaction questionnaire were used to assess the effects of two teaching methods on the students' interest in learning, the capacity of clin-ical practice, the abilities of exploring, analyzing and solving problems, etc. SPSS 17.0 software was used in statistical analysis. The students' teaching results were tested by using two independent samples t-test. The satisfactions of these teaching effects were tested by using the Chi-square test. Results The usual and final scores in the observation group were significantly higher than those in the control group [(88.1±5.1) vs. (75.3±4.2), (82.1±3.3) vs. (75.7±3.9); P<0.05]. Compared with the control group, the satisfactions of teaching effects in the observation group were higher such as to stimulate interest in learning (60.5% vs. 90.5%), to improve the abilities of self-study (30.2% vs. 83.3%) and clinical practice (51.2% vs. 85.7%), to widen the scope of knowledge (46.5% vs. 88.1%) and to cultivate the spirits of innovation (55.8% vs. 83.3%), etc (P<0.05). Conclusion During the teaching of clinical anesthesiology, the three-dimensional teaching mode has more advantages than the traditional one, which is good for improving the students' innovation and practice abilities.

OBJECTIVETo observe the effects of electroacupuncture (EA) pretreatment on the intestinal function, inflammatory reaction and blood lactic acid in the patients of colorectal cancer surgery.

METHODSSixty patients of colorectal cancer laparotomy at selective period, aged from 18 to 59 years old were selected. According toⅠ-Ⅲ grade of American Society of Anesthesiologists (ASA), the patients were randomized into group A (total intravenous anesthesia), group B[total intravenous anesthesia combined with EA pretreatment at Zusanli (ST 36), Shangjuxu (ST 37) and Xiajuxu (ST 39) on the right side] and group C[total intravenous anesthesia combined with EA pretreatment at Zhongwan (CV 12), Tianshu (ST 25), Zusanli (ST 36), Shangjuxu (ST 37) and Xiajuxu (ST 39) on the right side], 20 cases in each one. The total intravenous anesthesia was applied to all of the three groups. EA pretreatment was used one day before surgery and 30 min before surgery at corresponding acupoints in the group B and group C separately, 30 min each time. After surgery, the recovery time of bowel sound, the recovery time of flatus, the recovery time of defecation, the duration of diet fasting, the time of peritoneal drainage tube withdrawal and the total peritoneal drainage volume were observed in the three groups. The venous blood was collected to determine white blood cell count (WBC) and neutrophil count (NEUT) before surgery (T), 24 h after surgery (T) and on the 5th day after surgery (T) separately. The arterial blood was collected to determine the level of lactic acid before surgery (T), after peritoneal douching (T) and 24 h after surgery (T)separately.

RESULTSThe recovery time of bowel sound, the recovery time of flatus, the duration of diet fasting and the time of peritoneal drainage tube withdrawal in the group C were apparently earlier than those in the group A (all<0.05). WBC and NEUT at Tin the group C were apparently less than those in the group A (both<0.05). The differences in lactic acid at T, Tand Twere not significant statistically in comparison of the three groups (all>0.05).

CONCLUSIONSThe total intravenous anesthesia combined with EA pretreatment at Zusanli (ST 36), Shangjuxu (ST 37), Xiajuxu (ST 39), Tianshu (ST 25) and Zhongwan (CV 12) reduce the recovery time of bowel sound, the recovery time of flatus, the duration of diet fasting and the time of peritoneal drainage tube withdrawal so as to improve the recovery of intestinal function, reduce WBC in 24 h after surgery and alleviate inflammatory reaction. This therapy has no influence on blood lactic acid.

Objective To analyse tratment strategies and to evaluate the relation between different therapies and survival rate of patients of with asynchronous liver metastases after pancreatic cancer surgery (PCLM).Methods From January 2006 to January 2012,48 patients with PCLM were included in this study,and their medical records were retrospectively analyzed.Results Among the 48 patients,27 cases of liver metastases were found within six months after surgery,and the survival rate for 1,3 and 5 years was 22.2％,3.7％ and 0％,respectively,with the median survival of 6 months,and 21 cases of liver metastases were found after six months,and the survival rate for 1,3 and 5 years was 85.7％,30.6％ and 9.2％,with the median survival of 15 months,and the difference between the two groups was statistically significant (P ＜ 0.01).After pancreatic cancer surgery and adjuvant gemcitabine chemotherapy,the probability of liver metastases was 33.3％ (8/24) within six months,the median disease-free survival time was 8 months and the disease-free survival rate for 1,3 and 5 years was 20.8％,4.3％ and 0％.For patients without adjuvant gemcitabine chemotherapy,the probability of liver metastases was 79.2％ (19/24),the median disease-free survival time was 3 months and the disease-free survival rate for 1,3 and 5 years was 4.2％,0％ and 0％,and the difference between the two groups was statistically significant (P ＜ 0.01).The overall survival for patients undergoing resection of liver metastases combined with gemcitabine treatment was better than the other groups (P ＜ 0.01).And the overall survival for patients undergoing transhepatic arterial embolization (TACE) combined with gemcitabine treatment was better than TACE group,gemcitabine group or the observation group (P ＜0.05).There were no difference in overall survival between TACE group,gemcitabine group and observation group.Conclusions Pancreatic cancer patients who develop liver metastasis within six months after surgery have poor prognosis,but postoperative chemotherapy can delay the development of liver metastasis.For patients with resectable lesion,resection of asynchronous liver metastasis is the treatment of choice,and TACE combined with gemcitabine has better efficacy than that of single treatment.

OBJECTIVETo analyze the risk factors of liver metastasis in patients after radical resection of pancreatic cancer.

METHODSOne hundred and twenty-four patients with non-metastatic, resectable pancreatic cancer treated in our department between 2006 and 2012 were included in this study. All of these patients underwent resection of the primary tumor combined with extensive lymph node dissection. The development of postoperative liver metastases was carefully followed up, and the clinicopathological factors and molecular characteristics were evaluated by univariate analysis and multivariate logistic regression using SPSS 16.0 software.

RESULTSForty-eight cases of liver metastases were found among the 124 cases of pancreatic cancer after radical surgery (38.7%). The rate of liver metastasis of pancreatic cancer after radical surgery in the age groups < 40, 40-60, and > 60 were 68.8%, 33.3% and 35.1%, respectively. The rate of liver metastasis in the body mass index (BMI) group < 20 kg/m2, 20-25 kg/m2, and > 25 kg/m2 were 21.6%, 44.1% and 52.6%, and the rate of liver metastasis in the time between the onset and diagnosis groups ≥ 3 months and < 3 months were 59.4% and 31.5%, respectively. The rate of liver metastasis in patients with preoperative fatty liver was 14.3% and it was 43.7% in patients without preoperative fatty liver. The rate of liver metastasis in patients of histological high, medium and low grade was 10.0%, 35.4% and 49.0%, respectively. The rate of liver metastasis in patients with venous tumor thrombus was 68.8% and it was 34.3% in patients without venous tumor embolus. The rate of liver metastasis in patients with postoperative chemotherapy was 31.2% and it was 51.1% in patients without postoperative chemotherapy. All those differences had statistical significance (P < 0.05). Univariate analysis revealed that age, body mass index (BMI), time between the onset and diagnosis, preoperative fatty liver, histological grading, tumor invasion depth, venous tumor embolus, and postoperative chemotherapy were significantly related to postoperative liver metastasis. Multivariate analysis revealed five statistically independent risk factors for postoperative liver metastasis: BMI, time between onset and diagnosis, preoperative fatty liver, histological grading, and venous tumor embolus.

CONCLUSIONSOur data suggest that patient's BMI, time between onset and diagnosis, histological grade, and venous tumor embolus are significantly correlated with postoperative liver metastases in patients with pancreatic cancer. Pancreatic cancer patients with preoperative fatty liver have less postoperative liver metastasis.

Adult ; Aged ; Body Mass Index ; Humans ; Liver Neoplasms ; secondary ; Lymph Node Excision ; Middle Aged ; Pancreatic Neoplasms ; pathology ; surgery ; Regression Analysis ; Risk Factors

Objective To analyze the risk factors of liver metastasis in patients after radical resection of pancreatic cancer.Methods One hundred and twenty-four patients with nonm-etastatic , resectable pancreatic cancer treated in our department between 2006 and 2012 were included in this study. All of these patients underwent resection of the primary tumor combined with extensive lymph node dissection.The development of postoperative liver metastases was carefully followed up, and the clinicopathological factors and molecular characteristics were evaluated by univariate analysis and multivariate logistic regression using SPSS 16.0 software.Results Forty-eight cases of liver metastases were found among the 124 cases of pancreatic cancer after radical surgery ( 38.7%) .The rate of liver metastasis of pancreatic cancer after radical surgery in the age groups <40, 40-60, and >60 were 68.8%, 33.3%and 35.1%, respectively.The rate of liver metastasis in the body mass index ( BMI) group <20 kg/m2 , 20-25 kg/m2 , and >25 kg/m2 were 21.6%, 44.1%and 52.6%, and the rate of liver metastasis in the time between the onset and diagnosis groups ≥3 months and <3 months were 59.4%and 31.5%, respectively. The rate of liver metastasis in patients with preoperative fatty liver was 14.3%and it was 43.7%in patients without preoperative fatty liver.The rate of liver metastasis in patients of histological high, medium and low grade was 10.0%, 35.4%and 49.0%, respectively.The rate of liver metastasis in patients with venous tumor thrombus was 68.8%and it was 34.3%in patients without venous tumor embolus.The rate of liver metastasis in patients with postoperative chemotherapy was 31.2%and it was 51.1%in patients without postoperative chemotherapy.All those differences had statistical significance ( P<0.05) .Univariate analysis revealed that age, body mass index ( BMI) , time between the onset and diagnosis, preoperative fatty liver, histological grading, tumor invasion depth, venous tumor embolus, and postoperative chemotherapy were significantly related to postoperative liver metastasis.Multivariate analysis revealed five statistically independent risk factors for postoperative liver metastasis: BMI, time between onset and diagnosis, preoperative fatty liver, histological grading, and venous tumor embolus.Conclusions Our data suggest that patient′s BMI, time between onset and diagnosis, histological grade, and venous tumor embolus are significantly correlated with postoperative liver metastases in patients with pancreatic cancer.Pancreatic cancer patients with preoperative fatty liver have less postoperative liver metastasis.

Objective To analyze the risk factors of liver metastasis in patients after radical resection of pancreatic cancer.Methods One hundred and twenty-four patients with nonm-etastatic , resectable pancreatic cancer treated in our department between 2006 and 2012 were included in this study. All of these patients underwent resection of the primary tumor combined with extensive lymph node dissection.The development of postoperative liver metastases was carefully followed up, and the clinicopathological factors and molecular characteristics were evaluated by univariate analysis and multivariate logistic regression using SPSS 16.0 software.Results Forty-eight cases of liver metastases were found among the 124 cases of pancreatic cancer after radical surgery ( 38.7%) .The rate of liver metastasis of pancreatic cancer after radical surgery in the age groups <40, 40-60, and >60 were 68.8%, 33.3%and 35.1%, respectively.The rate of liver metastasis in the body mass index ( BMI) group <20 kg/m2 , 20-25 kg/m2 , and >25 kg/m2 were 21.6%, 44.1%and 52.6%, and the rate of liver metastasis in the time between the onset and diagnosis groups ≥3 months and <3 months were 59.4%and 31.5%, respectively. The rate of liver metastasis in patients with preoperative fatty liver was 14.3%and it was 43.7%in patients without preoperative fatty liver.The rate of liver metastasis in patients of histological high, medium and low grade was 10.0%, 35.4%and 49.0%, respectively.The rate of liver metastasis in patients with venous tumor thrombus was 68.8%and it was 34.3%in patients without venous tumor embolus.The rate of liver metastasis in patients with postoperative chemotherapy was 31.2%and it was 51.1%in patients without postoperative chemotherapy.All those differences had statistical significance ( P<0.05) .Univariate analysis revealed that age, body mass index ( BMI) , time between the onset and diagnosis, preoperative fatty liver, histological grading, tumor invasion depth, venous tumor embolus, and postoperative chemotherapy were significantly related to postoperative liver metastasis.Multivariate analysis revealed five statistically independent risk factors for postoperative liver metastasis: BMI, time between onset and diagnosis, preoperative fatty liver, histological grading, and venous tumor embolus.Conclusions Our data suggest that patient′s BMI, time between onset and diagnosis, histological grade, and venous tumor embolus are significantly correlated with postoperative liver metastases in patients with pancreatic cancer.Pancreatic cancer patients with preoperative fatty liver have less postoperative liver metastasis.

Objective To evaluate the effects of different doses of propofol on traumatic brain injury in rats .Methods Forty-eight healthy male Sprague-Dawley rats , aged 7-8 weeks , weighing 270-320 g , were randomly divided into 6 groups ( n=8 each ) using a random number table :sham operation group (group S ) , traumatic brain injury group (group I) ,fat emulsion group (group F) and low-dose propofol group (group L) , medium-dose propofol group (group M ) ,and high-dose propofol group (group H ) .Traumatic brain injury model was established according to the method described by Feeney .In group S ,0.9% normal saline was infused into the left femoral vein at 3.49 ml·kg-1 ·h-1 .In I ,F ,L ,M and H groups ,0.9% normal saline ,20% fat emulsion 3.49 ml·kg-1 ·h-1 ,and propofol 17.46 ,34.92 and 69.84 mg·kg-1 ·h-1 were infused into the left femoral vein ,respectively .Blood samples were collected from the right common carotid artery at 15 and 60 min of infusion (T1-2 ) for determination of serum S100β protein concentrations . The rats were then sacrificed after collecting blood samples at T2 and brains were removed for microscopic examination of the pathological changes of the cerebral cortex (light microscope ) and ultrastructure of neurons in the cerebral cortex (transmission electron microscope) .Results The serum S100β protein concentrations were significantly higher at T1 ,2 in the other five groups than in group S ( P<0.05 ) .Compared with I and F groups ,the serum S100βprotein concentrations were significantly decreased at T1 ,2 in L ,M and H groups ( P<0.05) .Compared with group L ,the serum S100βprotein concentrations were significantly decreased at T2 in M and H groups , and the serum S100β protein concentrations were increased at T1 in H group ( P< 0.05 ) . The serum S100β protein concentrations were significantly higher at T1 ,2 in H group than in group M ( P<0.05 ) .Light microscopic examination showed that nucleus condensation , cell necrosis , and cell edema were significantly attenuated in L ,M , and H groups as compared with group I;normal neurons could be found in group M .Transmission electron microscopic examination showed that the severity of neuronal damage was significantly attenuated in L ,M ,and H groups as compared with group I .Conclusion Different doses of propofol can reduce traumatic brain injury in rats .