Objective To determine the prevalence of organ failure and its risk factors in patients with severe acute pancreatitis(SAP). Method A retrospective analysis was conducted in 186 patients, who were hospitalized in the intensive care unit of Jinzhong First People's Hospital with SAP between March 2000and October 2009. SAP patients met the diagnostic criteria of SAP set by Surgery Society of Chinese Medical Association in 2006. The variables included age, gender, etiology of SAP, the number of comorbidit, APACHE Ⅱ score, CECT pancreatic necrosis, CT Severity Index ( CTSI ), abdomen compartment syndrome (ACS) ,the number of organ failure and the number of death. The prevalence and mortality of organ failure were calculated. The above-mentioned variables were analyzed by unconditional multivariate logistic regression analysis to determine the independent risk factors for organ failure in SAP. Results Of 186 patients, 96had organ failure. In 96 patients with organ failure, 47 died. There was a significant association between the prevalence of organ failure and age, the number of comorbidit, APACHE Ⅱ score, CECT pancreatic necrosis, CTSI, ACS. An increase in age, the number of comorbidit, APACHE Ⅱ score, CECT pancreatic necrosis correlated with an increase in the number of organ failure. Age, the number of comorbidit, APACHE Ⅱ score,CECT pancreatic necrosis, CTSI and ACS went into the unconditional multivariate logistic regression equation. Conclusions Organ failure occurred in 51.6% of 186 patients with SAP. The mortality of SAP with organ failure is 49.0%. Age, the number of comorbidit, APACHE Ⅱ score, CECT pancreatic necrosis,CTSI and ACS are independent risk factors of organ failure.

Objective To investigate the clinical safety and efficacy of mechanical thrombectomy(MT) with Solitaire stent compared with the selective intra-arterial thrombolysis (IAT) in the treatment of acute cerebral infarction.Methods Totally 82 cases patients with severe acute ischemic stroke caused by middle cerebral artery stenosis from January 2014 to May 2016 in the stroke treatment center of the first people's Hospital in ZunYi city who were applied with the mechanical thrombectomy or the selective intra-arterial thrombolysis was included,and a comparative analysis was conducted on the mTICI rating to assess the interventional recanalization,the NIHSS score after the treatment,bleeding rate,and conditions of neurological functional recovery 90 days after operation.Results There were 42 cases applied with the mechanical thrombectomy (MT group),40 cases applied with the intra-arterial thrombolysis (IAT group).The total effective rate reached 85.70％ in the MT group and 62.50％ in the IAT group,the difference was significant (P ＜ 0.05).Compared with NIHSS score before operation,the score after the treatment showed a decreased trend.And the NIHSS score of MT group was better than that of the IAT group in a week after the treatment (P ＜ 0.05).The bleeding rate was lower in the MT group with statistically significant difference (P ＜ 0.05).Conclusion Compared to IAT,MT can provide broader time window,higher recanalization rate and better outcome in patients with severe acute ischemic stroke.

Objective To identify the point mutation of Cu/Zn superoxide dismutase(SOD1) gene in an amyotrophic lateral sclerosis(ALS) family and observe the value of denaturing high performance liquid chromatography(DHPLC). Methods DHPLC and DNA sequencing were used to examine SOD1 gene of the ALS family which had not been found mutation by PCR-SSCP. Results DHPLC tests proved double peaks in one member(Ⅲ_1), Which indicated the possibility of mutation in SOD1 exon 4. DNA sequencing revealed that there was a heterozygote,with mutation of GAA to GGA in exon 4, and with a substitution of glutacid by glycine. Conclusion As compared with PCR-SSCP, DHPLC technique has proved to be a rapid and reliable method for screening mutation site in large samples.

Objective: To identify the mutation points of Cu/Zn superoxide dismutase(SOD1) gene in an amyotrophic lateral sclerosis(ALS) family with a unique phenotype,and to compare the value of single strand conformation polymorphism(SSCP) and denaturing high performance liquid chromatography(DHPLC). Methods: Five exons of SOD1 gene were amplified by PCR. The difference of these products were analyzed by PCR-SSCP and DHPLC.DNA sequencing was used to examine the mutation. Results: ①Mutations were found in exons 2 and 5 in several family members.DNA sequencing revealed that a base pair insertion occurred in the codon area of exon 2 and in the non-codon area of exon 5.②The results of DHPLC tests proved double peaks in one member with ALS symptoms(Ⅲ1),which indicated the possibility of mutation in SOD1 exon 4.DNA sequencing revealed that there was a heterozygote,with a mutation of GAA to GGA in exon 4 in the member with double peak. Conclusion: ①The mutations in exons 2,4,5 were proved.Insertion of exon 2 may be responsible for the disease of the ALS family in Chongqing.②Compared with PCR-SSCP,DHPLC technique has been proven to be a rapid and reliable method for screening mutation site in large samples.

DY-1 suspending rescue seat on helicopter is a helicopter-equipped apparatus which is used to rescue flight personnel forced to parachute or landing,or other individual disasters. The thesis briefly introduces the seal s working principle,performances and some experimenting results. It errphasizes on recounting the structure and the condition at operation of the active arm's locking mechanism of the rescue seat's peron fixed ring.

Objective To investigate the association between catechol-O-methyltransferase (COMT) Val158Met polymorphism and the memery function of schizophrenia treated with Aripiprazole.Methods Schizophrenic patients were diagnosed in according to Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV).A total of 78 Chinese Han subjects were involved in this study.The polymerase chain reaction-restriction fragment length polymorphism(PCR-RFLP) was used to identify COMT genotypes.The Chinese revised version of Wechsler Memory Scale (WMS-RC) was used twice to evaluate the memory function of patients treated with Aripiprazole alone before and after drug treatment for 8 weeks.ANOVA,rank sum test and t-test were used to statistical analysis.Results There was statistical difference of cumulative memory among the three groups (F=12.371,P=0.002),and Met/Met genotype showed much poorer cumulative memory than Val/Met and Val/Val genotypes (Z=-3.168,-2.641 ; P=0.002,0.008,respectively) Memory function was significantly improved after patients been treated with Aripiprazole except the associative memory(P＜0.05).Met/Met genotype showed more improvement of cumulative memory than other genotypes after Aripiprazole treatment (t=4.203,P＜0.01 ; t=3.024,P ＜0.01,respectively).Conclusions There may be a relationship between COMT Val158Met polymorphism and the memory function of schizophrenia in Aripiprazole treatment.Met/Met genotype of schizophrenia showed worst cumulative memory but best responsiveness in Aripiprazole treatment.

Objective To investigate the best injection position and curative effect of ultrasound-guided thrombin injection (UGTI)on femoral pseudoaneurysm (FPA).Methods Review the data of FPA cases in the neurology department of southwest hospital from January 2010 to June 2015.Detailed clinical information of the patients,including the curative effect of local compression therapy,the position,meth-od,dosage and curative effect of ultrasound-guided thrombin injection were collected and analyzed.Results From January 2010 to June 2015,43 cases (1.20%)of FPA were diagnosed in 3573 patients undergoing cerebrovascular interventional operation.Local compression therapy was effective in 11 of 43 FPA patients.The remaining 32 patients who had no response to local compression therapy were treated by UGTI,and the average dosage of thrombin was (30 ±12)IU.All FPA were blocked successfully within 1 minute and without any distal em-bolism events after the first UGTI attempt.No relapse and complications occurred during the follow-up of 5 to 70 months,averagely (38.69 ± 20.79)months.Conclusion UGTI is effective for treatment of FPA who had no response to local compression therapy.Thrombin injection at position far away from the blood flow direction of pseudoaneurysm neck crevasse with ultrasound-guided could bring about highe success rate, less amount of thrombin,and less complications.

Objective: To study and evaluate the clinical effect of emergency primary resection and anastomosis in the treatment of obstructive left hemicolon carcinoma and the value of preventing reoperation. Methods: From February 1st 2013 to February 1st 2018, a total of 46 patients with obstructive left hemicolon cancer underwent surgical treatment were selected in the First People's Hospital of Jinzhong.According to the random digital table method, 46 patients with obstructive left colon cancer were randomly divided into two groups, with 23 patients in each group.The control group received stage colon resection and anastomosis, and the observation group received stage I resection and anastomosis.The operative condition, postoperative recovery, anastomotic leakage, therapeutic effect of intestinal obstruction, serum inflammatory cytokines and reoperation rate were compared between the two groups. Results: There were no statistically significant differences in the number of lymph nodes dissection, the amount of blood lost during operation and time of operation (all P>0.05). The recovery time of anal exhaust[(2.34 ±0.86)d], the removal time of drainage tube[(4.36±1.52)d], the active time of getting out of bed [(3.81±1.17)d], the hospitalization time[(12.05 ±2.73)d] in the observation group were significantly shorter than those in the control group[(3.29±1.05)d, (6.17±1.84)d, (5.24±1.43)d, (15.76±3.69)d](t=3.357, 3.637, 3.712, 3.876, all P<0.05). The incidence rate of anastomotic fistula in the observation group was not significantly higher than that in the control group (P>0.05), and there was no statistically significant difference in the total effective rate of intestinal obstruction treatment between the two groups (P>0.05). The levels of serum inflammatory cytokines such as C-reactive protein, interleukin-6 and tumor necrosis factor-alpha in the two groups were significantly lower than those before operation(all P<0.05), but there were no statistically significant differences between the two groups before and after operation (all P>0.05). The rates of reoperation in the observation group and control group were 8.70% and 4.35%, respectively, and there was no statistically significant difference between the two groups (P>0.05). Conclusion Stage I resection and anastomosis can be used to treat intestinal obstruction effectively, dissect lymph nodes, suppress inflammatory reaction, it is safe and reliable, and do not increase the risk of reoperation.Compared with stage I resection and anastomosis, it has more advantages in accelerating postoperative recovery, which is beneficial to reduce the cost of treatment and reduce the economic burden of patients.