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MONOLAYER PANCREATICOGASTROSTOMY AFTER PANCREATODUODENECTOMY

目的 探讨胰十二指肠切除术胰与消化道重建方法的选择。方法 对我院1989～1999年施行的胰十二指肠切除术后胰胃吻合83例行回顾性总结，其中行经典的胰十二指肠切除术76例，保留幽门的胰十二指肠切除术7例。胰胃吻合是残余胰腺与胃后壁间断单层植入式吻合。结果 住院病死率为2.4%（2/83）； 并发症发生率为25.3%（21/83），其中胰瘘3例，胆瘘2例，吻合口出血3例，切口裂开5例，胃排空迟缓5例，腹腔感染1例，胸腔积液1例，肠梗阻1例。结论 胰胃吻合术简便、安全，是降低术后胰瘘的胰肠重建方法。

Influencing factors of pancreatic fistula after pancreaticoduodenectomy and significance of pancreatic fistula risk score system on selection of main pancreatic duct drainage after pancreaticoduodenectomy

Objective To explore the influencing factors of pancreatic fistula after pancreaticoduodenectomy (PD), and to compare the incidence of pancreatic fistula after pancreaticoduodenectomy with internal drainage of main pancreatic duct and external drainage according to the pancreatic fistula risk score (FRS) system, to provide the basis for the best drainage scheme in clinic. Methods The clinical data of 76 patients with PD who treated in the Affiliated Hospital of Xuzhou Medical University from January 2016 to December 2017 were analyzed retrospectively, to explore the risk factors of pancreatic fistula. Single factor analysis was based on group chi-square test or Fisher exact probability method, and multivariate analysis was based on unconditioned logistic regression model. According to the results of FRS, the difference of pancreatic fistula in different risk groups was explored. The statistical method was chi-square test. Results The incidence of pancreatic fistula after PD was 31. 5% in 76 patients.Univariate analysis showed that the diameter of the main pancreatic duct and the texture of the pancreas were the related factors affecting the occurrence of pancreatic fistula after PD (P<0.05), and the soft pancreas was the independent risk factor for the occurrence of pancreatic fistula after PD (OR=3.886, P=0.011). There was no significant difference in the incidence of postoperative pancreatic fistula between the internal drainage group and the external drainage group (P>0.05). There was no pancreatic fistula occurred in the patients with negligible risk. The incidence of postoperative pancreatic fistula in patients with high risk of external drainage group was only 12.5%, comparing with patients in internal drainage group (63.6%), the difference was statistically significant (P=0.026). There was no significant difference in the incidence of postoperative pancreatic fistula between patients in the external drainage group with moderate risk and low risk compared with the corresponding patients in the internal drainage group (P>0.05). Conclusions Pancreatic texture was an independent risk factor for pancreatic fistula after PD. External drainage maybe more effective than internal drainage in preventing pancreatic fistula after PD in patients with high risk of FRS.

Research Progress of Pancreatic Fistula Following Pancreaticoduodenectomy

ObjectiveTo summarize the prevention method for pancreatic fistula following pancreaticoduodenec-tomy. MethodLiteratures related to the prevention methods for postoperative pancreatic fistula at home and abroad in recent years were retrieved and summarized. ResultsThe pancreatic fistula was a common complication following pancreaticoduodenectomy. It was mainly caused by preoperative continuous high jaundice, selection of intraoperative anastomosis, and early postoperative pancreatic juice secretion. Trypsinogen was activated by alkaline intestinal juice and then the nearby tissue was digested. Pancreatic juice flowed into abdominal cavity to digest the tissue, then caused serious complications or even death. Through the prevention of drugs, preoperative biliary drainage and intraoperative anastomosis, etc., the incidence of postoperative pancreatic fistula was slightly decreased. ConclusionThe prevention for postoperative pancreatic fistula is an integrated process, and it needs to be ran through the whole perioperative period.

Risk Factors of Intraabdominal Complications and Operative Death after Pancreatoduodenectomy

ObjectiveTo explore the risk factors of intraabdominal complications (IACs), pancreatic fistula (PF), and operative death after pancreatoduodenectomy (PD), and to provide a theoretical basis in reducing the rates of them. MethodsClinical data of 78 patients who underwent standard PD surgery in The Third People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine from Jun. 2003 to Nov. 2011 were collected to analyze the influence factors of IACs, PF, and operative death. ResultsThere were 29 cases suffered IACs (13 cases of PF included), and 6 case died during 1 month after operation. Univariate analysis results showed that IACs and PF occurred more often in patients with soft friable pancreas, diameter of main pancreatic duct less than 3 mm, preoperative biliary drainage, no pancreatic duct stenting, and without employment of somatostatin (P < 0.05), no influence factor was found to be related to operative death. Multivariate analysis results showed that patients with no pancreatic duct stenting (OR=1.867, P=0.000), soft texture of remnant stump (OR=1.356, P=0.046), and diameter of main pancreatic duct less than 3 mm (OR=2.874, P=0.015) suffered more IACs; PF was more frequent in patient with no pancreatic duct stenting (OR=1.672, P=0.030), soft texture of remnant stump (OR=1.946, P=0.042), and diameter of main pancreatic duct less than 3 mm (OR=1.782, P=0.002);no independent factor was found to have relationship with operative death. ConclusionsSoft texture of remnant stump, diameter of main pancreatic duct less than 3 mm, and no pancreatic duct stenting are independent risk factors that should be considered in indications for PD surgery.

Prevention Pancreatic Fistula after Whipple Operation by Casing Stump Ends of Pancreas and PancreaticojejunostomyReport of Cases

目的探讨如何降低胰十二指肠切除术后胰空肠吻合口漏的发生。方法采用胰管空肠吻合胰腺残端套入法行胰肠吻合，按胰、胆、胃顺序与空肠重建消化道。结果27例胰十二指肠切除术中，手术并发症7例（25.93%），其中应激性溃疡出血3例，胃排空延迟2例，腹腔及腹壁创口感染各1例，均经非手术治愈。全组无围手术期死亡，亦无一例发生胰瘘。结论胰瘘的发生同术式和操作技术密切相关，亦与吻合口部位血供和张力以及吻合口远端通畅与否有关。本术式增加了胰空肠吻合的严密性，对预防胰瘘的发生起到了积极的效果，且操作简便，易于掌握，效果可靠。

Experience of local pancreatectomy in treatment of benign and low-grade malignant pancreatic tumors (clinical data analysis of 45 cases)

ObjectiveTo investigate the role of local pancreatectomy for benign and low-grade malignant pancreatic tumors.MethodThe clinical data of 45 patients with benign and low-grade malignant pancreatic tumors who underwent local pancreatectomy from January 2014 to June 2019 in Union Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology were analyzed.ResultsForty-five patients underwent the local enucleation or resection with negative margin. The pathological results showed that there were 17 cases of solid pseudopapilloma, 5 cases of mucinous cystadenoma, 4 cases of serous cystadenoma, 10 cases of islet cell tumor, 5 cases of nonfunctional neuroendocrine tumor, 4 cases of congenital cyst. There were 6 cases of head of pancreas, 26 cases of body of pancreas, 8 cases of tail of pancreas, 5 cases of uncinate process. The tumor was 1.2 to 9.0 cm in diameter with an average of 3.2 cm. Among them, the diameter was more than 5.0 cm in 9 cases. The incidence of pancreatic fistula after operation was 57.8%, 65.4% was grade A fistula, 34.6% was grade B fistula, and no grade C fistula occurred. The incidence of abdominal infection was 13.3%, incidence of abdominal hemorrhage was 6.7%. There was no secondary diabetes mellitus and pancreatic endo- and exocrine dysfunction, and no death case.ConclusionsPancreatic enucleation for benign and low-grade malignant pancreatic tumors after strict preoperative evaluation can effectively preserve the pancreatic endocrine function of patients. Although the incidence of pancreatic fistula is high, it is mostly biochemical fistula, and the incidence of serious complications is low.

Multivariate analysis of influencing factor of pancreatic fistula after distal pancreatectomy

ObjectiveTo investigate the factors that affect the occurrence of postoperative pancreatic fistula (POPF) after distal pancreatectomy (DP).MethodsThe clinical data of 114 patients underwent DP who were performed in the First Affiliated Hospital of Xinjiang Medical University from Jan. 2014 to Jun. 2019, were retrospectively analyzed.ResultsIn this group of 114 patients, 43 cases (37.7%) of POPF occurred after DP, including 19 cases of grade A (biochemical fistula), 21 cases of grade B, and 3 cases of grade C. The univariate analysis results showed that: BMI value, drinking history, preoperative plasma albumin level, postoperative plasma albumin level, postoperative neutrophil/lymphocyte ratio (NLR), preoperative and postoperative prognostic nutrition index (PNI) levels were significant different between the POPF group and non-POPF group (P<0.05). Multivariate analysis results showed that: preoperative plasma albumin>35 g/L [OR=0.115, 95%CI was (0.038, 0.348)], postoperative plasma albumin>35 g/L [OR=0.126, 95%CI was (0.031, 0.516)], and postoperative NLR value≤6.65 [OR=0.149, 95%CI was (0.048, 0.461)] were the influencing factors of POPF after DP. The area under curve of postoperative NLR was 0.731 [95%CI was (0.639, 0.824)]. ConclusionPreoperative and postoperative plasma albumin>35 g/L, as well as postoperative NLR ≤6.65 are protective factors for POPF after DP, and postoperative NLR can be used as a predictor of POPF.

单层连续环形胰肠吻合对胰十二指肠切除术后胰瘘的影响

目的 总结单层连续环形胰肠吻合对胰十二指肠切除术后胰瘘发生的影响。 方法 回顾性分析 2015 年 6 月至 2017 年 6 月期间在笔者所在医院行胰十二指肠切除术的 55 例患者的临床资料。 结果 所有患者均顺利完成单层连续环形胰肠吻合，无围手术期死亡。手术时间为 195～305 min、（231.46±18.69）min；术中出血量为 20～550 mL、（186.30±33.99）mL；胰肠吻合时间为 7～11 min、（9.31±2.43）min；住院时间为 14～37 d、（24.02±2.06）d。术后发生胰瘘 7 例，其中生化瘘 4 例，B 级胰瘘 3 例；发生腹腔感染 4 例，肺炎 5 例，胆汁漏 1 例，切口感染 2 例，无术后腹腔内出血发生。本组无开腹再手术患者，所有患者均顺利出院。术后所有患者均获访 90 d，随访期间均存活，发生胃排空障碍 1 例，碱性反流性胃炎 2 例。 结论 单层连续环形胰肠吻合的操作简单及安全，有一定的临床可行性。

The History of Pancreaticoenterostomy

Combined Double-Deck Continuous Stitch with Banding in End-to-End Invaginated Pancreaticoenterostomy

目的　改进胰肠吻合缝合技术，预防胰瘘发生。方法　24例胰十二指肠手术，采用2-0或3-0嶶乔吸收缝线行套入式双层连续缝合加捆绑胰肠吻合术。结果　吻合时间平均18 min，均未出现胰肠吻合口漏，无手术死亡病例。结论　双层连续缝合加捆绑胰肠套入式吻合，操作简便、省时、并发症少，是胰肠吻合术的一种有效改进。