Objective To compare the efficacy of radical and quasi-radical hepatectomy for the treatment of end-stage hepatic alveolar echinococcosis(HAE)with involvement of major blood vessels and viscera.Methods The clinical data of 41 patients with end-stage HAE who were admitted to the First Affiliated Hospital of Xinjiang Medical University from January 2002 to January 2010.All patients were divided into radical hepatectomy group (13 patients)and quasi-radical hepatectomy group(28 patients)according to whether blood vessels were reconstructed and repaired.The operation time,blood loss,length of hospital stay,recurrence and metastasis of HAE,pleural effusion,ascites,biliary complications and death between the 2 groups were compared.All data were analyzed by using the t test or chi-square test.Results The volume of blood loss,length of hospital stay,number of patients with recurrence and metastasis of HAE,obstructive jaundice and number of dead patients were(326 ±115)ml,(22 ± 18)days,0,0,and 0 in the radical hepatectomy group,and were(24 ± 20)ml,(15 ± 12)days,10,10 and 10 in the quasi-radical hepatectomy group,there were significant differences between the 2 groups(t =13.41,1.47;x2 = 4.36,4.36,4.36,P ＜ 0.05).The operation time,number of patients with pleural effusion and ascites,bile leakage,cholangitis and number of patients died perioperatively were(407 ± 146)minutes,4,0,1 and 1 in the radical hepatectomy group,and(263 ± 93)minutes,2,2,2 and 1 in the quasi-radical hepatectomy group,there were no significant differences between the 2 groups(t = 3.81;x2 = 2.30,0.04,0.34,0.04,P ＞ 0.05).Conclusions Radical hepatectomy should be the first choice when construction of infringed vessels can be achieved.Quasi-radical hepatectomy has lower operation risks for avoiding important vessels injury.

Objective To evaluate laparoscopic radical resection of liver hydatid cyst as compared with conventional open surgery.Methods From May 2006 to January 2013 clinical data of 41 patients undergoing laparoscopic radical resection of hepatic hydatid cyst were compared with those 112 cases treated by open surgery.Operation time,blood loss,conversion rate,length of hospitalization and recurrence rate were compared and analyzed.Results There was not statistical significant difference in operative time and blood loss between the two groups (t =1.97,P ＞ 0.05) (t =2.00,P ＞ 0.05).Five laparoscopic patients were converted to open surgery,conversion rate was 12.2 ％ (5/41),three due to inadequate exposure,and two for intraoperative bleeding.Postoperative hospital stay was significantly shorter in laparoscopic group than that in conventional group.The overall morbidity was 4.9％ (2/41) in laparoscopic and 16.0％ (18/112) in conventional group with statistical significance(x2 =3.92,P ＜ 0.05).Recurrence rate and mortality was 0 in both groups.Conclusions Laparoscopic radical resection of hydatid cyst is safe and effective in carefully selected patients and provides short hospital stay,good cosmetic result,fast recovery and fewer complications.

Objective To analyze the efficacy of different treatment methods for end-stage hepatic alveolar echinococcosis combined with obstructive jaundice.Methods A retrospective study was conducted on the diagnosis and treatment of 55 patients with end-stage hepatic alveolar echinococcosis combined with obstructive jaundice managed from January 2000 to January 2013 at the First Affiliated Hospital of Xinjiang Medical University.The patients were divided into two groups according to the treatment options:group A,the palliative surgery group (n =38,69.1％) using palliative resection and biliary decompression ; and group B,the interventional group (n =17,30.9％) using percutaneous transhepatic cholangial drainage (PTCD).We analyzd the general data,preoperative and postoperative liver function,operation time,blood loss,average hospital stay,duration of postoperative tube drainage of abscess cavity,degree of lesion with invasion into the first porta hepatis,progressive lesion,continuous invasion and/or distant metastasis,biliary complications,mortality,and cumulative survival rates.The t-test or t'-test was used to analyze continuous data and the chi-square test was used to analyze categorical data.Parallel log rank test and Kaplan-meier method were used to calculate survival rates in survival analysis.Results When compared with group B,group A had significantly longer operative time,more blood loss,and longer average hospital stay (P ＜0.05).The postoperative total bilirubin,direct bilirubin,γ-glutamyl transpeptidase and alkaline phosphatase,aspartate aminotransferase,alanine aminotransferase were significantly higher than in group B (P ＜0.05).The level of post operative albumin was lower in group A than in group B.The two groups of patients (A and B) had similar background including general data (gender,age,nation),preoperative liver function,duration of postoperative tube-drainage of abscess cavity,degree of lesion-invasion into first porta hepa tis,progressive lesion-invasion and/or distant metastasis,biliary complications,mortality,cumulative survival rates and survival curves.Conclusions Interventional treatment is an effective treatment for end-stage hepatic alveolar echinococcosis combined with obstructive jaundice.It has the advantages of minimal invasiveness,simplicity,safety and repeatability.It may replace traditional palliative surgery in the future.

Objective To investigate the effect of echinococcus granulosus antigen B on the severity of streptozotocin induced diabetes mellitus.Methods Thirty male BALB/c mice were randomly divided into 3 groups:echinococcus granulosus antigen B group (group A,n =10),normal saline group (group B,n =10),control group (group C,n =10).Mouse in group A was injected by echinococcus granulosus antigen B and mouse in group B was given normal saline,Type 1 diabetes was induced.After 3 weeks,mice were executed and pancreases were scored on insulitis by HE staining.Serum IFN-γ and IL-4 levels were measured by ELISA.Results After 3 weeks of the establishment of diabetes model mouse body weight in group B and C decreased significantly compared with that in group A.Mouse mean blood glucose level in group A was significantly lower than that in group B and C.There were less than 40％ of islets with lymphocytic infiltration in group A,compared with 80％ in group B.The average Ridit was 0.423,0.519,and 0.561 in group A,B and C respectively,P ＜ 0.05.IL-4 level in group A was significantly higher than that in group B and group C [(71.6 ± 12.4) ng/ml,(12.6 ± 5.6) ng/ml,(14.2 ± 7.2) ng/ml,P ＜ 0.05].IFN-γ level in group B and group C were higher than that in group A [(276.1 ± 41.7) ng/ml,(352.2 ± 52.2) ng/ml,(358.1 ± 53.4) ng/ml,P ＜ 0.05].Conclusions Type 1 diabetes is organ specific T lymphocyte mediated autoimmune disease.Echinococcus granulosus antigen B has protective effects on diabetes mellitus in mice couteracting autoimmune injury to the islets by streptozotocin,probably by a mechanism related to immune deviation of Th1 to Th2.

Objective To investigate the diagnosis and treatment of ruptured hepatic cystic echinococcosis (HCE).Methods The clinical data of 109 patients with HCE who were admitted to the First Affiliated Hospital of Xinjiang Medical University from January 1994 to December 2009 were retrospectively analyzed.The diagnosis was based on the results of serological examination,epidemiological history,clinical manifestation and imaging findings.Of the 108 patients who received surgical treatment,67 received classic endocystectomy(classic group)and 41 received improved endocystectomy(improved group).The operation time,operative blood loss,length of postoperative hospital stay,time of drainage,effusion and infection of residual cavity,biliary fistula,pleura]effusion,local recurrence,dissemination and implantation of HCE,and death of the 2 groups were compared.All data were analyzed using the t test and chi-square test.Results The diagnostic rates of ultrasound,computed tomography and magnetic resonance imaging were 93%(101/109),99%(70/71)and 7/7,respectively.The positive rate of serological examination was 100%(61/61).Of the 109 patients,1 died of anaphylactic shock.The operation time and operative blood loss were(3.2 ± 0.3)hours and(104.0 ± 11.5)ml in the classic group and(3.3 ±0.4)hours and(110.0 ±23.8)ml in the improved group,respectively.There were no significant differences in the operation time and operative blood loss between the 2 groups(t =-1.474,-1.758,P ＞0.05).The length of hospital stay and time of drainage were(15.3 ± 4.3)days and(28.0 ± 4.6)days in the classic group and(9.3 ± 1.2)days and(7.6 ± 0.8)days in the improved group,respectively.There were significant differences between the 2 groups in the length of hospital stay and time of drainage(t = 8.628,28.088,P ＜0.05).The incidence rates of effusion and infection of residual cavity,biliary leakage,local recurrence,dissemination and implantation of HCE of the classic group were significantly higher than those in the improved group(x2 =4.335,3.888,5.691,4.581,10.153,P ＜0.05).Twenty-one patients received reoperation because of HCE recurrence or severe complications.Conclusions Epidemiological history,clinical manifestation,imaging findings and serological examination are important for the diagnosis of ruptured HCE.Improved endocystectomy + peritoneal lavage with hypertonic saline + administration of anti-HCE drugs is the optimal treatment for ruptured HCE.

Hepatic alveolar echinococcosis(HAE)is a parasitic disease characterized by invasive growth. Major treatment methods include pharmacotherapy and surgical treatment,and surgical treatment mainly includes radical hepatectomy and palliative surgery. Radical hepatec-tomy is the first choice,and palliative surgery is mainly used to alleviate disease conditions and complications. Pharmacotherapy also plays an important role in the delay and control of HAE. In recent years,autologous liver transplantation has been used in the treatment of HAE and has become an effective therapy for end-stage HAE patients who cannot be cured by routine surgery. This article introduces the indica-tions and advantages/disadvantages of radical hepatectomy and palliative surgery,as well as the experience in the application of multidisci-plinary treatment,the concept of fast-track surgery,and autologous liver transplantation in the treatment of HAE patients,in order to pro-vide a reference for the treatment of HAE.

Objective To study the results of emergency treatment of ruptured hepatic cystic echinococcosis (HCE).Methods A standardized management protocol for hepatic echinococcosis was introduced by the First Hospital of Xinjiang Medical University in 2002.This study included 185 patients who received emergency treatment for ruptured HCE between 1994 and 2009.The patients were divided into group A (from 1994 to 2001) and group B (from 2002 to 2009).The clinical characteristics and surgical treatment results were compared retrospectively.Results In patients with ruptured HCE into the abdomen,classical endocystectomy (Group A1 ) resulted in significantly more postoperative complications in residual hepatic cavity,time of drainage,postoperative hospital stay,recurrence and peritoneal seeding than improved endocystectomy (Group B1 ) (P＜0.05).The operation time and blood loss were not significantly different between group A1 and B1 (P＞0.05).For patients with ruptured HCE into the biliary tree,classical endocystectomy (Group A2 ) resulted in significantly higher postoperative complications in residual hepatic cavity,time of drainage,postoperative hospital stay and recurrence than improved endocystectomy (B2) (P＜0.05).Operation time,blood loss and peritoneal seeding were not significantly different between group A2 and B2 (P ＞ 0.05). Only one patient (0.54％) died from allergic shock in this series of patients.Conclusions Improved endocystectomy was an efficacious surgical treatment for ruptured HCE and it is recommended for emergency surgery.

Objective To analyze the use of multidisciplinary team approach (MDT) for advanced and refractory hepatic alveolar echinococcosis in individualized treatment.Methods A retrospective study was conducted on the use of multidisciplinary team approach in individualized diagnosis and treatment for 137 patients with advanced and refractory hepatic alveolar echinococcosis (with invasion of major blood vessels and bile ducts,and/or with lung and brain metastasis) in our hospital from January 2005 to December 2013.The patients were divided into two groups:The MDT group (n =49) and the non-MDT group (n =88).The MDT group was further divided into two subgroups:subgroup A was the surgical treatment group (n =26),and subgroup B was the non-surgical treatment group (n =26).In the subgroup B,13 patients underwent late radical surgery.The non-MDT group was also further divided into two subgroups:subgroup a was the surgical treatment group (n =61),and subgroup b was the non-surgical treatment group (n =27).In subgroup b,5 patients underwent late radical surgery.The time taken to confirm the diagnosis,perioperative hospital stay,operation time,blood loss,postoperative drainage time,postoperative hospital stay,early postoperative complications (pleural and peritoneal effusions,bile leak,anastomotic leak),late postoperative complications (jaundice,anastomotic stenosis,recurrence),and rates of radical surgery were compared between subgroup A and subgroup a.The rates of late radical resection were compared between subgroup B with subgroup b.All data were analyzed using the Mann-Whitney rank sum test or the Chi-square test.Results Subgroup A had significantly shorter perioperative hospital stay,postoperative hospital stay,and total length of hospital stay than subgroup a (P ＜ 0.05).The incidence of late postoperative complications (jaundice,anastomotic stenosis,recurrence) was also significantly less than subgroup a (P ＜ 0.05),and the radical surgery rate was significantly higher than subgroup a (P ＜ 0.05).There was no significant difference in the time taken to confirm the diagnosis,operation time,blood loss,postoperative drainage time,early postoperative complications (pleural and peritoneal effusions,bile leak,anastomotic leak) (P ＜ 0.05) between subgroup A and subgroup a.The ratio of subgroup B receiving chemotherapy alone or drainage + chemotherapy,and the rate of late implement of radical resection were significantly higher than subgroup b (P ＜0.05).Conclusions A multidisciplinary team approach in individualized treatment comprehensively combined the advantages of the effects of drugs,intervention,surgery and systemic nutritional support.The best individualized treatment plan could be used which improved the rates of radical surgery in advanced and refractory hepatic alveolar echinococcosis,reduced postoperative complications,improved quality of life,and offered chances of radical resection in the patients who had lost the opportunities for surgery.

Objective This paper expounds the present situation of the construction and probes into the development path of the medical characteristic disciplines,so as to provide guidance for the development of the characteristic disciplines of local medical colleges and universities.Methods According to the general characteristics of the discipline construction of the local medical colleges and universities,through the analysis of the current situation of the objective development and the restriction of the bottleneck,to analyze the new methods and new ways for the development of the characteristic disciplines in local medical colleges and universities.Results Medical characteristic disciplineconstruction should pursue sustainable development,mining subject characteristics;concise direction of research,enhance the level of scientific research;focus on academic exchanges,build talent echelon;integrate all kinds of resources,construction of subject group;building performance evaluation,pioneering achievement innovation.Conclusions Local educational institutions and medical colleges and universities should fully understand the importance of characteristic disciplines to meet the needs of local development and create brand culture.The characteristic disciplines with prominent advantages,reasonable structure and sustainable development should be established.

Objective:To investigate the changes of natural killer (NK) cells, natural killer T (NKT) cells and T lymphocytes in the peripheral blood after nanosecond pulse ablation of hepatic vesicular hydatid in rats with different energy levels.Methods:A total of 32 SD rats were randomly divided into hepatic vesicular hydatid model group, low voltage group (1 000 V), medium voltage group (1 500 V) and high voltage group (2 000 V). The hydatid model of rats was established by selective injection of 100 μl of echinococcosis head suspension with concentration of 500/100 μl into the left hepatic portal vein in all the 4 groups. After 3 months, nanosecond pulse therapy was applied to the left lobe vesicular hydatid lesions in the low voltage group, medium voltage group and high voltage group. On the third day after treatment, flow detector was used to calculate the ratio of CD 4+ T to CD 8+ T in peripheral blood of four groups by CD 3+ T, CD 4+ T, CD 8+ T, NK cells and NKT cells. Results:CD 3+ T was expressed in the high voltage group with (62.08±2.75)%, the medium voltage group with (63.84±7.73)%, the low voltage group with (55.19±8.55)% and the control group with (54.76±8.28)% ( P<0.05). CD 4+ T number was larger in high voltage group (43.7±6.51)% than medium voltage group (38.82±5.47)%, low voltage group (37.31±6.96)% and model group (38.12±3.04)% ( P<0.05). CD 8+ T ratio in the high voltage group was (20.03±2.40)%, the medium voltage group was (21.22±1.74)%, the low voltage group was (19.00±3.06)%, and the model group (20.56±3.98)%, with no statistically significant difference ( P>0.05). NK cells ratio in high voltage group was (6.49±1.60)%, medium voltage group was (3.02±0.32)%, low voltage group was (3.42±0.91)% and model group was (3.44±0.55)% ( P<0.05). NKT cells ratio in high voltage group was (1.53±0.16)%, medium voltage group was (0.82±0.09)%, in low voltage group was (0.70±0.17)% and model group (0.78±0.10)% ( P<0.05). CD 4+ T/CD 8+ T high voltage group was (2.26±0.65), medium voltage group was (1.90±0.40), low voltage group was (1.98±0.37) and model group was (2.06±0.35) ( P<0.05). Conclusion:High voltage (2 000 V) increased number of T, NK and NKT cells in peripheral blood compared with medium voltage (1 500 V) and low voltage (1 000 V), which may be the immune response of the body caused by nanosecond pulse ablation of hepatic vesicular hydatid in rats.