Objective To improve the management of blunt pancreatic trauma, and to explore the strategy of preserving the pancreatic endocrine and exocrine function to the full extent. Methods 20 cases of blunt pancreatic trauma were reviewed and analyzed retrospectively. The methods of operative treatment were analysed. Results All patients were cured. Depending on the general condition, abnomial signs and main pancreatic duct(MPD) injuries at the time of admission, patients received immediate operation or nonoperative treatment. Because of severe peritonitis and demonstrated MPD injury, 10 patients underwent immediate operations, including simple drainage in 6 cases, distal pancreatectomy in 1 patient, external drainage of the injured pancreatic duct for the second operation in 3 cases. Without the demonstrated MPD injury or clinical deterioration, 10 patients received nonoperative treatment under strict observation initially. 3 patients completed the nonoperative course and 7 patients underwent delayed operations, including Roux-en-Y pancreatic cyst-jejunostomy in 3 cases, external drainage of pseudocyst in e cases, pancreaticoduodenectomy in 1 patient because of the expanded hematoma in pancreatic head. Conclusions Blunt pancreatic trauma could receive individual pancreas-preserving treatment, which could improve the operational safety, avoid the resection of pancreas and preserve the pancreatic endocrine and exocrine function to the full extent.

ObjectiveTo evaluate the clinical application of Kugel hernioplasty via anterior approach for inguinal hernia repair.MethodsA retrospective study was made to analyze the clinical data of 851 cases(956 hernias) treated with Kugel hernioplasty via anterior approach for inguinal hernias from November 2005 to May 2011.ResultsOperative duration was(42 ± 11) minutes.The postoperative complications were detected on 21 hernias of seroma,8 hernias of hematoma,12 hernias of sub dermal ecchymosis,26 hernias of foreign body sensation and 5 hernias of recurrence.No incision infection occurred.Conclusions Kugel hernioplasty via anterior approach can repair and strengthen the whole anatomy area of myopectineal orifice.It is available for various kinds of inguinal hernias.

Objective To investigate the role of individualized and staged enteral nutrition in the treatment of severe acute pancreatitis(SAP).Methods The clinical data of 204 cases of SAP treated with individualized stage enteral nutrition in our hospital from January 2000 to March 2008 were retro-spectively analyzed, Results The liver function and serum lipid and diet returned to the normal level after the treatment.Pancreatic encephalopathy disappeared.The patients recovered and were dis-charged from the hospital with the extraction of feeding tube.Enteral nutrition was adjusted based on the monitoring results in the hospitalization period that brought less effect to the pseudocyst of pancre-as, and then discharged from the hospital with the feeding tube.The pseudocyst in 49 cases disap-peared spontaneously and it was cured with internal drainage for 3 months in other 32.The time of en-teral nutrition was 20-95 d.Conclusion Enteral nutrition is safe and necessary after the acute stage of SAP.To ensure the enteral nutrition to play a more important role in the treatment of SAP, we must pay more attention on the individualization and stage of enteral nutrition.

Objective To evaluate clinical application of Kngel patch in treating recurrent inguinal her-nia. Methods The clinical data of 65 patients with 77 sides recurrent inguinal hernia performed open preperitoneal inguinal hernia repairs from January 2005 to June 2009 were analyzed retrospectively. Kugel hernia patches were used in the operations. Results The operating time for unilateral hernia expended 40 ～ 150(76.5±20. 4) min. Postoperative pain was minimal and no incision infection appeared. The postopera-tive complications were 4 cases of uroschesis,6 cases of inguinoscrotal seroma, 2 cases of inguinoscrotal he-matoma and 3 cases of serotal hydrops. No serious complications such as sensation of foreign body, inguinal chronic pain and recurrence were observed during the follow-up of 3 to 54 months. Conclusions Open preperitoneal hernia repair with Kngel patch for adult recurrent inguinal hernia reparation is rational and fea-sible.

Objective To investigate the clinical efficacy of total pancreaticoduodenectomy for the pancreatic head adenocarcinoma with positive neck margin.Methods The clinical data of 15 patients with pancreatic head adenocarcinoma and had positive neck margin who received total pancreaticoduodenectomy at the Union Hospital of Fujian Medical University from August 2009 to May 2014 were retrospectively analyzed.Patients were followed up by out-patient examination or telephone interview till August 2014.Results Total pancreaticoduodenectomy was successfully carried out on the 15 patients.The operation time was 4.0-10.0 hours (mean,6.5 hours),and the volume of blood loss was 300-2 000 mL (mean,800 mL).The duration of postoperative hospital stay was 13.0-35.0 days (mean,22.3 days).The main postoperative complications included pulmonary infection (3 cases),abdominal infection (2 cases)and low blood glucose (2 cases).No interoperative death,bile leakage or gastrointestinal anastomotic fistula occurred.The blood glucose of most of the patients was controlled by insulin or pancreatin.No stomachache,steatorrhea or malnutrition occurred in all the patients.The mean time of postoperative follow-up was 21 months (range,3 months to 5 years).Three patients survived within 1 year,2 survived for 1-2 years,5 survived for more than 2 years and 1 survived for more than 5 years.Four patients with follow-up time under 6 months survived till now.Five patients had liver metastasis at postoperative month 6.Conclusion Total pancreaticoduodenectomy might be necessary for the pancreatic head adenocarcinoma with positive neck margin to achieve R0 resection.

Objective To investigate the correlation between disease severity and pleural effu sion in patients with acute pancreatitis(AP).Methods A retrospective analysis was conducted on a prospectively collected database.The demographic,clinical,and laboratory data of 246 consecutive cases of AP in patients admitted to the Affiliated Union Hospital of Fujian Medical University between January 2008 to December 2012 were reviewed.Acute physiology and chronic health evaluation Ⅱ (APACHE Ⅱ) score and computed tomography severity index (CTSI) were used to evaluate the disease severity of AP.The relationship between the severity and pleural effusion was analyzed.Receiver operator characteristic (ROC) curve was used to compare the values of APACHE Ⅱ score and CTSI in predicting the prognosis of patients with pleural effusion.Results Among the 246 patients,there were 184 patients with pleural effusion and 62 patients without pleural effusion.The incidence of pleu ral effusion in AP was 74.8％.Further study showed that the difference in the incidences of pleural effusion between the severe group and the mild group was significant (P＜0.01).There was a trend that the more serious the patient's condition,the more the pleural effusion.Moreover,the levels of pleural effusion were significantly and positively correlated with the APACHE Ⅱ score (r=0.775,P＜0.01) and CTSI (r=0.525,P＜0.05).Logistic regression analysis showed that the factors significantly associated with pleural effusion formation were a high APACHE Ⅱ score and a high CTSI.Areas under the ROC curve of the APACHE Ⅱ score,CTSI and combined assessment were 0.798,0.687 and 0.812 for predicting mortality of the patients with pleural effusion.Through comparison of the areas under the ROC curve,there was a significant difference between the APACHE Ⅱ score and CTSI as well as combined assessment and CTSI (P＜0.05).Conclusions The disease severity was closely related to pleural effusion in patients with AP.Combining the two scoring systems to evaluate the disease severity and providing active treatment were important to improve the prognosis of patients with pleural effusion.

Objective To analyze the metabolic profile in serum between normal and orthotopic xenograft nude mice burdened with three human pancreatic cancer cell lines,which were differentiated differently.Methods Human pancreatic cancer lines SW1990,BxPC-3 and Panc-1 were subcutaneously injected into the nude mice,respectively.When the tumor volume reached 1.0 cm3,the nude mice were euthanized and the tumor tissues were removed and implanted to the pancreas to establish the orthotopic xenograft mice model.The serum from three orthotopic xenograft tumor nude mice and the normal controls were collected and then analyzed by 1H nuclear magnetic resonance spectroscopy.Results The three orthotopic xenograft nude mice models were successfully established.In SW1990,BxPC-3 and Panc-1 group,the orthotopic xenograft tumor formation rate was 79％ (11/14),93％ (13/14) and 86％ (12/14),while the mortality was 7％ (1/14),0 and 7％ (1/14),respectively.Compared with control group,the content of metabolites in the serum of orthotopic xenograft tumor nude mice was increased including creatine,alanine,glutamine,1-methylhistidine,isoleucine,lactate,phenylalanine,tryptophan and valine,but the glycerolphosphocholine (GPC) and glucose levels were reduced.As the tumors progressed to be more malignant,the content of valine and isoleucine tended to increase.Conclusions The establishment of the orthotopic implantation tumor nude mice model was stable and reliable with high tumor formation rate.Obvious metabolic differences of glucose,lipid and amino acids were observed between normal and human pancreatic cancer tumor burdening nude mice models.The common metabolic features identified in all three nude mice models burdened with human pancreatic cancer could be used as the potential markers for diagnosing human pancreatic cancer.

Objective To investigate the clinical value of serum metabonomic profile of pancreatic cancer using nuclear magnetic resonance (NMR)-based metabonomics.Methods The retrospective case-control study was adopted.The clinical data of 23 patients with pancreatic cancer (PC group) and 16 healthy volunteers (control group) who were admitted to the Fujian Medical University Union Hospital between December 2013 and December 2014 were collected.The serum of the 2 groups was measured by 1H NMR spectroscopy.Multivariate statistical analyses were performed to identify the characteristic metabolites in the 2 groups,including principal component analysis (PCA),partial least squares discriminant analysis (PLS-DA) and orthogonal partial least squares discriminant analysis (OPLS-DA).Observation indicators included:(1) multivariate statistical analysis of serum metabonomic profile,results of PCA,PLS-DA and OPLS-DA,(2) screening of metabolites.Measurement data with normal distribution were presented as x ± s.The comparison between groups was evaluated with the t test.The count data were analyzed using the chi-square test.Results (1) The multivariate statistical analysis of serum metabonomic profile:results of PCA showed that expression rates of principal component 1 (PC1) and principal component 2 (PC2) to original data were 54.9％ and 23.5％,with both cumulative contribution rate of 78.4％.Results of PLS-DA showed that the separative trend between PC group and control group was appeared,and variance of X and Y matrixes and predictive value were 0.254,0.816 and 0.385.Results of OPLS-DA showed that the differences of samples between the 2 groups were further increased,and differential metabolites were screened according to the distinction of scores between the 2 groups,value of R2X,R2Y and Q2 was 0.254,0.816 and 0.433.(2) Screening of metabolites:35 serum metabolites were detected in the 2 groups.Compared with the control group,levels of 3-hydroxybuyarate,citrate,formate,glutamate,isoleucine,methionine and phenylalanine in the PC group were elevated (r =0.524,0.511,0.656,0.566,0.503,0.498,0.648,P ＜0.05),and levels of 3-methylhistidine,alanine,glutamine,LDL and VLDL in the PC group were decreased (r =-0.607,-0.508,-0.560,-0.568,-0.559,P ＜ 0.05).Conclusions Compared with healthy controls,several amino acids,citrate and lipoproteins demonstrate the metabolic differences in the serum of patients with pancreatic cancer.NMR based metabonomic profile technology can distinguish the difference of serum metabolites between patients with pancreatic cancer and healthy controls.NMR based metabonomic technology may be a promising method for the diagnosis of pancreatic cancer.

Objective: To compare the short-term clinical outcomes and cost differences of robotic distal pancreatectomy (RDP) versus laparoscopic distal pancreatectomy (LDP). Methods: The retrospective descriptive study was adopted.The clinical data of 158 patients underwent minimally invasive distal pancreatectomy who were admitted to Fujian Medical University Union Hospital between January 2016 and July 2018 were collected.A 1∶1 matched propensity score (PSM) analysis was performed for the RDP group and the LDP group.Observed indexes included operative time, blood loss, spleen-preserving rate, postoperative hospital stay, morbidity, incidence of pancreatic fistula and hospital costs. T test or rank sum test was used to compare measurement data, χ² test or Fisher exact test was used to compare count data. Results: A well-balanced cohort of 41 patients was analyzed.There were 14 males and 27 females in the RDP group, aged (45.2±16.4)years. There were 15 males and 26 females in the LDP group, aged (47.4±14.9) years.The operation time was (209.7±52.9) minutes for the RDP group and (186.5±56.7) minutes for the LDP group (P=0.073). Median blood loss was less in RDP (50(15-175)ml) compared with LDP (100(50-350)ml) (Z=-2.689, P=0.007). Thirty-eight cases of non-malignant diseases were observed in each group and spleen-preserving rate was higher in RDP (76.3%) compared to LDP(44.7%) (χ²=7.930, P=0.005).Postoperative hospital stay was similar in the RDP group and the LDP group (RDP: 9.4 days vs. LDP: 10.6 days; P=0.372). The overall morbidity and incidence of pancreatic fistula major complication rates (RDP: 12.2% vs. LDP: 14.6%, P=0.746; RDP: 7.3% vs. LDP: 9.8%, P=1.000) were similar.Total cost of RDP group was higher than that of LDP group ((80 563.7±10 641.8) yuan vs. (57 792.8±8 943.0) yuan, t=4.515, P<0.01). Conclusions Both RDP and LDP are safe and feasible procedures. RDP is more expensive, but RDP is associated with significantly less blood loss and higher spleen-preserving rate, which is more suitable for the non-malignant diseases of pancreatic body and tail with an expectation of splenic preservation.

Objective: To discuss the methods, skills and experiences of dividing the neck of pancreas in laparoscopic pancreaticoduodenectomy(LPD). Methods: The clinical data of 58 patients with periampullary tumors who received LPD at the Union Hospital of Fujian Medical University from December 2014 to January 2017 were retrospectively analyzed.There were 26 males and 32 females, ranged from 18 to 65 years, with a mean age of (46±12)years. Results: All of the 58 patients underwent operation smoothly.Three cases underwent open anastomosis via an auxiliary incision after the total resection of specimen laparoscopically, due to the early learning curve of LPD.Two cases transformed into open operation as a result of tumor vascular invasion to portal vein(PV) or superior mesenteric vein(SMV). Fifty-three cases underwent laparoscopic or laparoscopic combined with robotic pancreaticoduodenectomy completely.Forty-two cases ligated gastroduodenal artery(GDA), fully penetrated the interspace between rear of pancreatic neck and SMV, suspended the pancreas and then divided the neck of pancreas from inferior to superior. Thirteen cases fully dissected the interspace between rear of pancreatic neck and SMV, divided the neck of pancreas from inferior to superior and then ligated GDA.Three cases ligated GDA, dissected PV and SMV at the superior and inferior margin of the neck of pancreas separately, and then divided pancreas from anterior to posterior.Mean time of dividing pancreas was (34.9±9.7)minutes, mean volume of blood loss while dividing pancreas was (30.1±8.2)ml.The main postoperative complications included pancreatic fistula(7 cases, Biochemical leak 2 cases, B grade 3 cases, C grade 2 cases), biliary fistula(3 cases), gastric fistula(1 case), delayed gastric emptying(1 case, C grade), abdominal infection(5 cases), hepatic failure (1 case), intra-abdominal hemorrhage(2 cases), reoperation(2 cases). One case died at the perioperative period while others recovered.The mean duration of postoperative stay was (14.2±5.1)days. Conclusions Dividing the neck of pancreas is one of the most important steps in LPD, which deserved sufficient attention.At the meantime, a suitable method of dividing the neck of pancreas should be chosen according to intraoperative exploration and preoperative imageological examinations.