ObjectiveTo summarize the influence of dietary factors on the risk of pancreatic cancer and its possible mechanism. MethodThe literatures relevant to studies of the influence of dietary factors on the risk of pancreatic cancer were collected and reviewed. ResultsThe total intakes of carbohydrate, fatty acid, protein, and vitamin affected the risk of pancreatic cancer, and the different substances belonging to the same nutrients had different effects on the risk of pancreatic cancer. In addition to nutrients, the popular beverages and different dietary patterns in recent years also affected the risk of pancreatic cancer through certain mechanisms. ConclusionDietary factors can affect risk of pancreatic cancer through a variety of mechanisms, and it might decrease risk of pancreatic cancer by intervening in dietary factors in daily life for healthy people.
ObjectiveTo investigate the effect of multidrug resistant (MDR) bacterial infection in clinical course of acute pancreatitis. MethodsThe medical records of 134 patients with a diagnosis of infected pancreatic necrosis in West China Hospital from Jan. 2003 to Jun. 2010 were reviewed. ResultsMDR microorganisms were found in 78 of the 134 patients. MDR group had higher rate of transferred patients than non-MDR group (38.5% vs. 10.7%, P=0.002). The intensive care unit admission rate was significantly higher in patients with MDR bacterial infections (48.7% vs. 26.8%, P=0.01). The mean intensive care unit stay was significantly longer in patients with MDR bacterial infections (20 days vs. 3 days, P<0.001). Mortality and total hospital stay was not significantly different in the patients with MDR infections vs. those without it (20.5% vs. 14.3%, P>0.05; 78 d vs. 55 d, P>0.05). ConclusionClinicians should be aware of the high incidence and impact of MDR infections in patients with acute necrotizing pancreatitis, especially in transferred patients.
目的介绍直肠癌根治手术中防止盆腔大出血的经验与紧急处理措施。方法1993年8月至2000年4月我科完成直肠癌根治手术687例。术者掌握盆腔解剖，沿间隙操作，保护好骶前静脉丛； 沿髂内动脉内侧镰状筋膜处理侧韧带，有时结扎直肠中动脉； 肿瘤浸润阴道或前列腺可边切除边缝合； 盆腔侧壁中度浸润者可在侧方淋巴结清除的同时，合并髂内动、静脉分支和肿瘤切除。发生盆腔大出血，根据大出血部位及肿瘤情况可采用骶丛止血钉按压法，纱布压迫止血法，缝扎止血法或血管修补术止血。结果发生术中大出血仅14例，术中失血量＜400 ml 5例，400～800 ml 8例，＞800 ml 1例。止血后未发生再次大出血。行Miles手术8例，保肛手术6例，无手术中死亡。结论直肠癌根治手术中按解剖层次正确操作，阻断直肠周围血流可防止盆腔大出血。发生盆腔大出血可用骶丛止血钉、纱布压迫、缝扎止血或血管修补术止血。
Objective To compare anastomotic fistula of modified triple-layer duct-to-mucosa pancreaticojejunostomy and end-to-end invagination pancreaticojejunostomy following pancreaticoduodenectomy. Methods The clinical data of 147 patients underwent pancreaticoduodenectomy from January 2015 to June 2017 in the West China Hospital of Sichuan University were retrospectively analyzed. The modified triple-layer duct-to-mucosa pancreaticojejunostomy were used in 101 cases (MTL group) and end-to-end invagination pancreaticojejunostomy were used in 46 cases (IPJ group). The differences of intraoperative and postoperative statuses were compared between the two groups. Results The baseline data of these two groups had no significant differences (P>0.05). Except for the average time of the pancreaticoenterostomy of the MTL group was significantly longer than that of the IPJ group (P<0.05), the intraoperative blood loss, the first postoperative exhaust time, postoperative hospitalization time, reoperation rate, death rate, and rates of complications such as the pancreatic fistula, biliary fistula, anastomotic bleeding, gastric emptying disorder, and intraperitoneal infection had no significant differences between these two groups (P>0.05). Conclusions Both modified triple-layer duct-to-mucosa pancreaticojejunostomy and end-to-end invagination pancreaticojejunostomy following pancreaticoduodenectomy are safe and effective. An individualized selection should be adopted according to specific situation of patient.
Objective To summarize the risk factors, diagnosis, and treatment experience of intra-abdominal bleeding following surgeries for severe acute pancreatitis. Methods A retrospective review was conducted of 347 patients underwent necrosectomy for severe acute pancreatitis between January 2011 and December 2015 at West China Hospital of Sichuan University. Results Of the 347 patients, thirty-eight patients had intra-abdominal bleeding after surgeries, including 5 patients who had twice bleeding. The bleeding positions including splenic vein (n=7), splenic artery (n=2), pancreatic and peripancreatic vessels (n=8), colonic mesangial vessels (n=6), other vessels (n=12), and extensive osmotic bleeding in abdominal cavity (n=7). Hemostatic modes: suture (n=20), compression hemostasis (n=18), transcatheteranerial embolism (n=2), suture and compression hemostasis (n=4), and conservative treatment (n=1). There were 19 dead patients of 38 bleeding patients. There were statistically significant differences between the hemorrhage group and the non-hemorrhage group on gender, acute physiology and chronic health evaluation (APACHEⅡ) scores and modified Marshall scores at admission, interval onset to surgery, surgical approaches, and morbidity (P<0.05). Compared with the non-hemorrhage group, there were more males, higher APACHE Ⅱ scores and modified Marshall scores, longer interval onset to surgery, and higher mortality in the hemorrhage group. Multivariable logistic regression analysis showed that male patients had higher risk of intra-abdominal bleeding (OR=3.980, P=0.004), as the grow of APACHEⅡ scores, the risk of intra-abdominal bleeding increased (OR=1.487, P<0.001). Conclusions We should pay more attention on the male SAP patients as well as patients with multiple organ dysfunction.
ObjectiveTo evaluate the safety and feasibility of non-nasogastric tube throughout the perioperative period of classical Whipple pancreaticoduodenectomy. MethodsA retrospective analysis was conducted on the clinical data of 63 patients who underwent Whipple pancreaticoduodenectomy at West China Hospital of Sichuan University from June 2020 to August 2023. According to whether nasogastric tube was placed throughout the perioperative period, the patients were divided into nasogastric tube group (NGT group, n=32) and no nasogastric tube group (no NGT group, n=31). The intraoperative indicators such as gastrointestinal anastomosis mode and outcome measures such as postoperative hospital stay were compared between the two groups. Results① Preoperative baseline data: the proportion of benign diseases (P=0.005) and preoperative pancreatitis (P=0.003) of the no NGT group were higher than those of the NGT group, and other preoperative baseline data, such as age and sex, were not statistically significant (P>0.05). ② Intraoperative index: the proportion of circular stapler (P=0.009) was smaller and the operation time was shorter (P<0.001), but there was no significant difference in the anastomosis, intraoperative blood transfusion and intraoperative bleeding (P>0.05). ③ Postoperative outcome measures: the postoperative length of hospital stay (P<0.001) and the incidence of delayed gastric emptying (P<0.001) of the no NGT group were lower than those in the NGT group, but the postoperative time of food intake, incidence of pancreatic fistula, incidence of postoperative bleeding, and Clavien-Dindo grade of complications were not significant (P>0.05), and on one died within 30 d after operation. ConclusionsThe results of this study preliminarily show that, it is safe and feasible not to place nasogastric tubes throughout the perioperativeperiod in patients undergoing classical Whipple pancreaticoduodenectomy. Compared with placing nasogastric tube, it can shorten the postoperative hospital stay, reduce the incidence of postoperative delayed gastric emptying.
ObjectiveTo investigate the role of D-dimer in predicting the prognosis of the patients with acute pancreatitis (AP). MethodsThe medical records of 324 patients with a diagnosis of AP in West China Hospital from April to June 2014 were retrospectively analyzed. ResultsOverall mortality rate was 3%, the median hospital stay was (11±3) days, and the median Intensive Care Unit stay was (1±1) day. The prothrombin time, activated partial prothrombin time, fibrinogen, international normalized ratio, antithrombinⅢ, D-dimer, C-reactive protein, and procalitonin level in the organ failure (OF) patients were significantly higher than those in the non-OF patients (P<0.05). The D-dimer, C-reactive protein, and procalcitonin level in the patients with infection were significantly higher than those in the non-infectious onse (P<0.05). The D-dimer and procalcitonin level in the death group were significantly higher than those in the survivor group (P<0.05). D-dimer and procalcitonin level increased as the grade of AP increased (P<0.05); the difference in C-reactive protein between the light and middle type was not significant (P>0.05), while was significant between middle and severe, and light and severe (P<0.05). The area under the receiver operating characteristic curve (AUC) of OF predicted by D-dimer was higher than C-reactive protein and procalcitonin; AUC of infection predicted by D-dimer was lower than procalcitonin; AUC of death predicted by D-dimer was higher than C-reactive protein but lower than procalcitonin. ConclusionD-dimer measurement is a useful, easy, and inexpensive early prognostic marker of the complications and death of AP. D-dimer provide a more accurate assessment of prognosis than C-reactive protein and procalcitonin in patients with AP.
目的 探讨急性胰腺炎继发感染的治疗方法。方法 分析总结我院1998～1999年收治的20例胰腺感染患者，采用经后上腰腹膜后引流及灌洗方法治疗的资料。结果 术后并发症： 残余脓肿2例，消化道出血1例，肠瘘4例，胰瘘6例，经治疗后患者全部治愈。结论 该治疗方法残余感染及死亡率低。