Three-dimensional visualization technology in the use of laparoscopic spleen-preserving distal pancreatectomy / 中华普通外科杂志

Objective:To evaluate three-dimensional visualization technology (3D technic) used in laparoscopic spleen-preserving distal pancreatectomy for pancreatic benign or low-grade malignant tumors.Methods:Data of 28 patients with laparoscopic distal pancreatectomy at Beijing Hospital from Aug 2016 to Dec 2021 were retrospectively analyzed.Results:There were 12 patients assigned in 3D attempt compared to 16 patients undergoing ordinary laparoscopy. In 3D group, all 12 patients underwent successful spleen preserving distal pancreatectomy. While in control group only 5 cases were successful in spleen preserving procedure, the remaining 11 cases failed in spleen preserving ending up in distal pancreatectomy combined with splenectomy. The spleen preserving pancreatectomy rate in 3D group was higher than control group ( P<0.05). There was no significant difference in the operation time (202±53.8) min vs. (186.8±48.3) min, intraoperative blood loss (107.5±141.2) mL vs. (160.6±184.4) ml and the incidence of pancreatic leakage between the two groups ( P>0.05). Nor there was difference in the average postoperative hospital stay between the two groups [(9.6±2.5) d vs. (19.1±40.6) d] ( P>0.05). Conclusion:Three dimensional visualization technology can improve the success rate and safety of laparoscopic spleen preserving distal pancreatectomy in cases of benign and low-grade malignant distal pancreatic tumors.

The clinical efficacy of resection with spleen preservation or containing for benign and borderline tumor in pancreatic tail / 临床外科杂志

Objective To compare the clinical efficacy of the distal pancreatectomy with spleen preservation and the splenectomy in pancreatic tail for the treatment of benign and borderline tumor. Methods A total of 37 patients with pancreatic benign and borderline tumor from January 2012 to De-cember 2014 in our hospital were treated by laparoscopic surgery.Eleven cases were received distal pan-createctomy with spleen preservation(spleen preserving group)and 26 cases were received resection of pancreatic tail with spleen containing(splenectomy group).Results The operation time of spleen preser-ving group and splenectomy group were(165.34 ± 12.25)mins and(170.72 ± 14.37)mins(P>0.05). The blood loss in the preserving spleen group(108.52 ± 13.11)ml was significantly less than that in the splenectomy group(186.25 ± 17.43)ml(P <0.05).The hospitalization time of the preserving spleen group(10.16 ± 2.11)d was significantly shorter than that of the splenectomy group(12.78 ± 2.78)d(P<0.05).The use of Octreotide in the preserving spleen group(11.45 ± 3.75)mg was significantly less than that in the splenectomy group(16.75 ± 5.75)mg(P <0.01).All patients were followed up for three years.The disease free survival(DFS)in the spleen preserving group was higher than that in the splenecto-my group(100% vs.88.46%)with P<0.05.Conclusion The distal pancreatectomy with spleen preser-vation is safe,effective and suitable for pancreatic benign and borderline tumors.

Spleen-and splenic vessels-preserving laparoscopic distal pancreatomy for the treatment of pancreatic cystic tumor of body and tail / 中华消化外科杂志

Objective To investigate the feasibility of spleen-and splenic vessels-preserving laparoscopic distal pancreatectomy for the treatment of pancreatic cystic tumor of body and tail.Methods The clinical data of a female patient with pancreatic cystic tumor of body and tail who was admitted to the Sun Yat-Sen Memorial Hospital of the Sun Yat-Sen University in March 2013 were retrospectively analyzed.Spleen-and splenic vesselspreserving laparoscopic distal pancreatectomy was determined as the optimal therapeutic method according to the physical examination and the results of computered tomography scan.Laparoscopic or open operation combined with distal pancreatectomy and splenectomy would be carried out as a candidate choice once it is hard to separate the splenic artery and vein from distal pancreas or to control the serious vessels hemorrhage.The patient was followed up by outpatient examination every 1 to 3 months up to March 2015.Results Spleen-and splenic vessels-preserving laparoscopic distal pancreatectomy was finished successfully.The operation time and volume of intraoperative blood loss were 192 minutes and 50 mL,respectively.The patient took out-of-bed for activity at postoperative day 1 without complications.The multiple severe microcystic pancreatic adenoma was confirmed by postoperative pathological examination,with a maximum diameter of 3.5cm.The leakage tube was removed at postoperative day 5.The levels of serum amylase at postoperative day 1,3,5 were normal.The patient was discharged at postoperative day 8 and got regular follow-up without bleeding,pancreatic fistula,infection and a symptom of epigastric pain or discomfort.Conclusion Spleen-and splenic vessels-preserving laparoscopic distal pancreatectomy has advantages of less traumas,faster postoperative recovery and a preservation of normal splenic function,deserving clinical application.

Dual-incision laparoscopic spleen-preserving distal pancreatectomy

Laparoscopic spleen-preserving distal pancreatectomy has been widely performed for benign and borderline malignancy in the body or tail of the pancreas when there are not oncologic indications for splenectomy. As the need for minimally invasive procedures to reduce postoperative morbidity and improve the quality of life is increasing, many surgeons have attempted to reduce the number of trocars and incision size to minimize access trauma and scarring. Single-port laparoscopic spleen-preserving distal pancreatectomy is the result of these efforts; however it has many limitations such as technical difficulty and prolonged operation time. In this article, we report the first case of dual-incision laparoscopic spleen-preserving distal pancreatectomy, proving that it can be a safe and feasible minimally invasive procedure for benign or borderline malignant tumors in the body or tail of the pancreas.

Surgical Management of Intraductal Papillary Mucinous Tumor of the Pancreas

BACKGROUND: Intraductal papillary mucinous tumor (IPMT) of the pancreas is a rare tumor arising in the main pancreatic duct or its subbranches. It is characterized by a diffusely or focally dilated main pancreatic duct filled with mucus and a mucus secretion through a patulous duodenal papilla. METHODS: The clinicopathologic characteristics of eight IPMT cases which were resected surgically from January 1994 to August 1998 at Seoul National University Hospital were reviewed to consider the optimal surgical treatment. RESULTS: The range of ages was from 49 to 70 years with a mean age of 59.3. Five were men and three were women. The prominent symptom was upper abdominal pain. Seven patients had been treated for pancreatitis before. Tumor markers didn't correlate with the pathologic status. In all the cases, a dilated pancreatic duct with secretion of mucin was found in the radiologic studies. Four lesions were located in the uncinate process, 3 in the body, and 1 diffusely. One total pancreatectomy, 1 Whipple's procedure, 3 pylorus-preserving pancreatoduodenectomies, 1 duodenum-preserving resection of the head of the pancreas, and 2 subtotal pancreatectomies were performed. Three lesions were malignant, another three were borderline malignant, and the remaining two were benign. Three were multiple lesions. Lesions for which the main pancreatic duct was dilated more than 0.5 cm, lesions greater than 2.5 cm, lesions with a mural nodule greater than 1.0 cm, or type 1, 2, 3 lesions were borderline malignant or malignant. There was no lymphatic metastasis. After a follow-up duration from 1 month to 56months, all patients are alive at the time of study and have experienced no locoregional recurrence or distant metastasis. CONCLUSIONS: In the radiologic studies, an IPMT should be considered in a multilobulating cystic lesion with the dilated main pancreatic duct. The lesions are variable from benign to malignant and often spread intraductally. When the lesion seems to be malignant, an aggressive resection is recommended.