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1.
不同胰肠吻合方式的临床效果比较   总被引:2,自引:0,他引:2  
目的:探讨端端胰肠套入式吻合、端侧胰管空肠黏膜吻合和捆绑式胰肠吻合的临床应用效果.方法:收集本院1999-02/2009-05行胰十二指肠切除术的患者资料157例,其中采用端端胰肠套入式吻合方式61例,端侧胰管空肠黏膜吻合方式66例,捆绑式胰肠吻合方式30例.分析患者胰肠吻合时间、术后并发症各指标、死亡率及住院时间.结果:端端胰肠套入式吻合时间、端侧胰管空肠黏膜吻合时间与捆绑式胰肠吻合组比较差异有统计学意义(35.85±4.73 min,37.18±6.12 min vs 20.75±4.05 min,均P<0.05).3组术后并发症各指标、死亡率及住院时间统计学上无差异.捆绑式胰肠吻合无1例发生胰漏.结论:3种方法均有良好的临床效果及较低的并发症.捆绑式胰肠吻合具有操作更方便、手术时间短、并发症少的优点,值得临床推广  相似文献   

2.
目的:观察胰十二指肠切除术中应用改良的胰肠端侧吻合法(胰管—空肠黏膜对黏膜)的临床效果。方法41例行胰十二指肠切除术患者,术中采用4-0 Prolene线连续缝合胰腺断面与空肠浆肌层,5-0 Prolene线吻合胰管—空肠黏膜行胰肠端侧吻合。记录胰肠吻合时间、胰漏等并发症和死亡发生情况。结果41例患者均顺利完成手术,胰肠吻合时间9~16 min、平均12 min,均未出现术后胰漏、消化道出血及死亡,2例出现胆瘘,2例出现胃排空障碍,1例出现碱性反流性胃炎,经保守治疗后痊愈。结论改良的胰肠端侧吻合法可降低胰十二指肠术后胰漏发生率,操作简便、省时、安全。  相似文献   

3.
褥式交锁缝合在胰空肠吻合术中的应用   总被引:1,自引:0,他引:1  
目的 探讨在胰十二指肠切除胰空肠吻合术中,采用褥式交锁缝合法防止胰空肠吻合口瘘的可行性。方法 对51例行胰十二指肠切除术的患者,在经典胰管空肠黏膜端侧吻合口前后壁加缝一层胰腺断端前后壁包膜,与空肠浆肌层切口前后壁浆肌层1号丝线褥式交锁缝合,缝线距胰断端与空肠浆肌切口约1cm。胰管内放置一段长约15cm的硅胶管,另一端置于空肠腔内,利用胰肠吻合处的缝线将硅胶管固定。胰管空肠黏膜吻合用3-0丝线.缝合3~6针。结果 51例患者均无胰瘘、胆瘘、腹腔感染及术后大出血等严重并发症发生。随访1个月至5年,无胆管炎、吻合口溃疡发生,无腹泻等胰腺外分泌功能不足症状。结论 胰空肠吻合时采用褥式交锁缝合法可有效防止胰肠吻合口瘘。  相似文献   

4.
彭氏捆绑式胰肠吻合术的临床应用   总被引:2,自引:0,他引:2  
0引言胰十二指肠切除术(Pancreaticoduodenectomy,PD)手术范围较大,危险性较高,并发症多.其中胰肠吻合口漏为PD手术后最常见、最严重的并发症之一.据统计,目前胰肠吻合口漏的发生率仍高达13%左右,大约是17%PD手术患者的直接死亡原因.为了预防,文献报道有20种方法,大体上包括胰腺残端(胰管)结扎、胰管栓塞或外引流、全胰切除、胰腺断面的浆膜化、胰胃吻合[1,2]、胰空肠6-8针间断缝合[3]、胰空肠套入吻合[4]、胰管与空肠黏膜吻合[5]和没有胰管与空肠黏膜吻合的胰管外造瘘术[6].虽然胰肠吻合方法多种多样,但无一能完全避免胰肠吻合口漏的发…  相似文献   

5.
目的:探究根据胰管直径等因素选择不同胰肠吻合方式对患者术后恢复的影响.方法:采取回顾性的方法对2010-01/2014-01遵义医学院第三附属医院接收治疗的进行胰十二指肠切除术的108例患者的临床资料进行分析.其中胰管直径≥3 mm的患者42例,给予其胰管空肠黏膜吻合术进行治疗,为胰管空肠黏膜吻合组.胰管直径<3 mm的患者66例,其中28例患者的胰腺残端比较粗大,且较空肠管径大的患者给予改良Child胰肠吻合术进行治疗,为改良Child胰肠吻合组,其余38例患者胰腺残端直径<空肠管径,给予其套入加捆绑式胰肠吻合术进行治疗,为套入加捆绑式胰肠吻合组.对比不同胰肠吻合方式患者的术后并发症发生率,并对其临床疗效进行评价.结果:3组患者中胰管空肠黏膜吻合组患者的胰管直径最大,与其他两组相比较差异具有统计学意义(P<0.05).3组患者中改良Child胰肠吻合组患者的胰腺残端直径最大,与其他两组相比较差异具有统计学意义(P<0.05).比较3种手术方式的术中出血量、胰肠吻合时间、手术总时间之间的差异不具有统计学意义(P>0.05).3组患者共发生9例胰瘘,总胰瘘发生率为8.33%.比较3组患者的术后腹腔出血、胰瘘、消化功能异常、腹腔感染、死亡和平均住院时间差异无统计学意义(P>0.05).结论:在进行Wipple术时,根据患者的胰管直径、空肠管径和胰腺残端直径选择合理的胰肠吻合方式对患者术后的恢复有一定的促进作用.  相似文献   

6.
目的本文探讨胰肠吻合方式在临床应用中的选择以及不同吻合方式与发生胰瘘之间的关系.方法本组回顾2002-12/2005-06间行胰肠吻合病例34例,其中33例胰十二指肠切除术,1例胰腺横断伤,胰肠吻合方式包括端端套入吻合,双层连续套入式吻合;胰管支撑和胰液引流包括胰管支撑内引流、胰管支撑外引流和无胰管支撑等.结果术后胰瘘总发生率为5.88%(2/34),死亡1例.两种主要吻合方式比较,双层连续套入式吻合时间较端端套入吻合时间显著缩短(P<0.05),胰瘘发生率两种方法无明显差异.结论两种吻合方式均较容易掌握,双层连续套入式吻合时间较端端套入式吻合缩短.操作技术的熟练程度是影响胰瘘发生率的重要因素.在吻合技术未熟练掌握时,放置胰管支撑外引流有助于减少胰瘘发生.  相似文献   

7.
目的 建立家猪贯穿缝合式胰肠吻合的动物实验模型.方法 选取10头小型家猪,全麻后剖腹暴露胰腺,于胰腺左叶肠系膜上血管水平横断胰腺,胰腺近侧残端缝闭,远侧残端与空肠行端侧贯穿缝合式胰肠吻合,Roux-en-Y式重建消化道.结果 10头家猪行贯穿缝合式胰肠吻合手术均获成功.胰腺残端横径平均2.5 cm,胰管直径平均1.5 mm.手术时间为1.0~2.5 h,平均1.8h,其中胰肠吻合时间平均为8 min.术中平均出血量为25 ml.术后2头猪发生腹泻,1头猪发生切口感染,均经相应处理后治愈.术中未发生意外,术后未发生胰瘘,无死亡.结论 成功建立家猪贯穿缝合式胰肠吻合的实验模型.  相似文献   

8.
目的探讨胰十二指肠切除术并发胰瘘的原因及其预防方法。方法回顾性分析25例胰十二指肠切除术患者的临床资料。结果术后并发胰瘘4例(4/25),其中行胰空肠端侧吻合3例(3/8),空肠套入捆绑式吻合1例(1/17)。结论胰十二指肠切除术后胰瘘的发生与手术方式相关,捆绑式胰肠吻合发生胰瘘的几率较小。胰管内放置引流管能减少胰瘘的发生。  相似文献   

9.
目的 探讨胰十二指肠切除术后胰肠吻合口出血与胰肠套入捆扎吻合后胰管内置管留置空肠长度的关系.方法 2006年8月至2011年8月行胰十二指肠切除术63例,均采用Child消化道重建方式,胰肠吻合重建分为A、B、C三组.A组22例,胰肠吻合采用胰腺残端套入空肠捆扎法吻合,胰腺残端外内支撑管长度15 cm;B组21例,吻合方法同A组,胰腺残端外内支撑管长度为5 cm;C组20例,采用胰腺残端与空肠黏膜吻合,胰腺残端外内支撑管长度为5 cm.结果 A组2例(9.1%)发生胰肠吻合口出血,经非手术治疗均痊愈.B组8例(38.1%)发生胰肠吻合口出血,其中2例因出血病死,3例行二次手术止血治愈,3例经非手术治疗痊愈.C组无一例发生胰肠吻合口出血.A组和B组患者发生出血的时间均在术后15 d左右,A、B两组胰肠吻合口出血发生率的差异具有统计学意义(x2=9.428,P=0.009).结论 胰肠套人捆扎吻合术后发生胰肠吻合口出血与胰管内支撑管留置空肠的长度过短有关.  相似文献   

10.
在43例胰十二指肠切除术中采用了肠系膜上血管蒂后间隙胰肠直接套入式吻合技术。术后无1例发生胰肠吻合口漏,发生胆肠吻合口漏2例,腹腔感染2例,胃应激性溃疡4例。认为在胰十二指肠切除术中采用肠系膜上血管蒂后间隙胰肠直接套人式吻合技术能有效预防胰肠吻合口漏的发生。  相似文献   

11.
AIM: The purpose of this study is to find a better operative technique by comparing interrupted stitches with continuous stitches for the outer layer of the pancreaticojejunostomy, i.e. the stitches between the stump parenchyma of the pancreas and the jejunal seromuscular layer, and other risk factors for the incidence of pancreatic leakage.
METHODS: During the period January 1997 to October 2004, 133 patients have undergone the end-to-side and duct-to-mucosa pancreaticojejunostomy reconstruction after pancreaticoduodenectomy with interrupted suture for outer layer of the pancreaticojejunostomy and 170 patients with a continuous suture at our institution by one surgeon.
RESULTS: There were no significant differences between the two groups in the diagnosis, texture of the pancreas, use of octreotide and pathologic stage. Pancreatic fistula occurred in 14 patients (11%) among the interrupted suture cases and in 10 (6%) among the continuous suture cases (P = 0.102). Major pancreatic leakage developed in three interrupted suture patients (2%) and zero continuous suture patients (P = 0.026). In multivariate analysis, soft pancreatic consistency (odds ratio, 5.5; 95% confidence interval 2.3-13.1) and common bile duct cancer (odds ratio, 3.7; 95%CI 1.6-8.5) were'predictive of pancreatic leakage.
CONCLUSION: Pancreatic texture and pathology are the most important factors in determining the fate of pancreaticojejunal anastomosis and our continuous suture method was performed with significantly decreased occurrence of major pancreatic fistula. In conclusion, the continuous suture method is more feasible and safer in performing duct-to-mucosa pancreaticojejunostomy.  相似文献   

12.
There is a high risk of anastomotic leakage following pancreaticojejunostomy after pancreaticoduodenectomy or middle pancreatectomy in patients with a normal soft pancreas because of the abundant exocrine function. Therefore, pancreaticojejunostomy is generally performed using a stent tube (stented method). However, pancreaticojejunostomy with a certain duct-to-mucosa anastomosis does not always require a stent tube even in patients with a normal soft pancreas. We have performed pancreaticojejunostomy with duct-to-mucosa anastomosis without a stent tube (nonstented method) and obtained good results. The objective of this technique is to maintain adequate patency of the anastomosis using a fine atraumatic needle and monofilament suture. The pancreas, including the pancreatic duct, is sharply transected with a scalpel. Any arterial bleeding points on the pancreatic cut end are repaired with fine nonabsorbable sutures. The end-to-side anastomosis between the pancreas and jejunum consists of two layers of sutures. The outer layer is composed of the capsular parenchyma of the pancreas and the jejunal seromuscularis, and the inner layer is composed of the pancreatic duct with an adequate pancreatic parenchyma and the whole jejunal wall. Complete pancreaticojejunostomy using duct-to-mucosa anastomosis does not require a stent tube. This nonstented method can be considered one of the basic procedures for pancreaticojejunostomy because of its safety and reliability.  相似文献   

13.
BACKGROUND/AIMS: The aim of the present study is to ascertain the effect of a single layer continuous suture between pancreatic parenchyma and jejunum after duct-to-mucosa anastomosis in pancreaticoduodenectomy through a single surgeon's experiences. METHODOLOGY: From March 1, 2002 to March 31, 2005, among 512 patients who had pancreaticoduodenectomy at Asan Medical Center, 56 patients who had a single layer continuous suture between pancreatic parenchyma and jejunum after duct-to-mucosa anastomosis were selected consecutively for prospective study. RESULTS: There were 44 pylorus-preserving pancreaticoduodenectomy, 10 pancreaticoduodenectomy, 2 hepatopancreaticoduodenectomy. No pancreatic leakage was reported. All three wound infections recovered after conservative treatment, and a gastric ulcer bleeding was resolved by suture-ligation through laparotomy. There was no mortality after surgery. CONCLUSIONS: Although it is a report with low surgical volume, a single layer continuous suture between pancreatic parenchyma and jejunum after duct-to-mucosa anastomosis in pancreaticoduodenectomy is thought to be a good method to prevent the complications of pancreatic leakage using a tight close attachment of pancreas and jejunum.  相似文献   

14.
End-to-end anastomosis after medial pancreatectomy for tumor   总被引:1,自引:0,他引:1  
Reconstruction by pancreaticoenterostomy has generally been employed after medial pancreatectomy for tumor. As a less invasive procedure, here we report three patients who successfully underwent pancreatic end-to-end anastomosis after medial pancreatectomy. The subjects consisted of 2 patients with serous cystadenomas and 1 patient with an intraductal papillary mucinous tumor. These tumors were detected in the pancreatic neck or body, and the maximal tumor diameters ranged from 10 to 33mm. The pancreatic duct diameters were 2 mm in 2 patients and 4 mm in 1 patient. The procedure was carried out by ductal anastomosis and parenchymal anastomosis with interrupted sutures. A pancreatic tube was inserted for decompression at the anastomotic site in all patients. The mean operative time was 3 hours and 31 minutes, and the intraoperative blood loss was 428 mL. Although pancreatic fistula was observed in 2 patients with the normal pancreas, conservative therapy relieved this complication. Neither tumor relapse nor stenosis of the pancreatic duct at the anastomotic site was detected in any patient, with a follow-up of 4 to 27 months. Our experience confirmed that in selected cases, this reconstructive procedure was feasible and safe for physiological reconstruction without involvement of the digestive tract.  相似文献   

15.
BACKGROUND/AIMS: Pancreatogastrostomy, generally considered to pose less postoperative complications for a small-duct pancreas after pancreatoduodenectomy than pancreatojejunostomy, has usually been conducted with an invagination method, which can cause obstruction of the duct during the follow-up. The purpose of this study was to investigate the short- and long-term results with special reference to the patency of the main pancreatic duct after pancreatogastrostomy performed on a small-duct pancreas, combining an invagination technique with a duct-to-mucosa approximation. METHODOLOGY: Out of 73 patients with a nondilated pancreatic duct, 24 in an earlier series underwent pancreatogastrostomy only with an invagination. The other 49 in a later period had an additional duct-to-mucosa anastomosis. RESULTS: Four patients (5.5%) developed a minor anastomotic leak of the pancreas which healed uneventfully within 16-41 days without mortality. Long-term results revealed that the pancreatic duct tended to dilate after pancreatogastrostomy without mucosal adaptation, while the new method of pancreatogastrostomy with duct-to-mucosa anastomosis left the diameter of the pancreatic duct unchanged. Body weight and peripheral blood glycohemoglobin A1c retained preoperative levels, irrespective of the mucosal anastomosis. CONCLUSIONS: Pancreatogastrostomy with mucosa-to-mucosa anastomosis appears to be a useful method of pancreatic reconstruction in both the short- and long-term.  相似文献   

16.
BACKGROUND/AIMS: A new method of reconstructing the pancreatic stump after pancreatoduodenectomy (PD) is necessary to improve the postoperative mortality rate. Thus, we modified the pancreatoenteric procedure to reduce anastomotic leakage from the pancreatic stump after PD, and we conducted a study to evaluate the usefulness of the new procedure on the basis of patients' postoperative condition. METHODOLOGY: We compared the postoperative condition of 21 patients who underwent PD with the new separated loop (SL) reconstruction (6 men, 11 women; mean age, 67.7+/-7.2 years) to that of 31 patients (12 men, 19 women; mean age, 66.8+/-10.3 years) who underwent PD with pancreatogastrostomy (PG). In the SL reconstruction procedure, the proximal jejunum is brought up behind the colon, and an end-to-side choledochojejunostomy is made with a single layer of interrupted sutures. Approximately 20cm of the jejunum is fitted with a fixed stomach tube for postoperative enteral feeding, and the cut proximal jejunum is positioned next to the pancreatic stump. A pancreatic tube is inserted into the lumen of the pancreatic duct and fixed without closing the pancreatic duct. Pancreatojejunostomy is achieved as an end-to-end anastomosis with the pancreatic stump telescoping into the proximal jejunum. Approximately 20cm of the jejunum is anastomosed side-to-end to the stomach, and end-to-side jejunojejunostomy is made to complete a Y-type reconstruction. Each patient's postoperative condition was also assessed on the basis of serum albumin (ALB), cholinesterase and total cholesterol (T-CHO) levels on postoperative days (PODs) 14 and 28. RESULTS: A high level of amylase in drainage fluid was noted in two (6.5%) and delayed gastric emptying in four (12.9%) of the patients in the PG group. There were no complications in the SL group. Postoperative levels of ALB on POD 14 and T-CHO on POD 28 were significantly higher than in the PG group. CONCLUSIONS: The SL method is safe and does not induce complications after PD. Our results indicate that this method may provide a favored outcome.  相似文献   

17.
AIM: To assess the patency of pancreaticoenterostomy and pancreatic exocrine function after three surgical methods. METHODS: A pig model of pancreatic ductal dilation was made by ligating the main pancreatic duct. After 4 wk ligation, a total of 36 piglets were divided randomly into four groups. The piglets in the control group underwent laparotomy only; the others were treated by three anastomoses: (1) end-to-end pancreaticojejunostomy invagination (EEPJ); (2) end-to-side duct-to- mucosa sutured anastomosis (ESPJ); or (3) binding pancreaticojejunostomy (BPJ). Anastomotic patency was assessed after 8 wk by body weight gain, intrapancreatic ductal pressure, pancreatic exocrine function secretin test, pancreatography, and macroscopic and histologic features of the anastomotic site. RESULTS: The EEPJ group had significantly slower weight gain than the ESPJ and BPJ groups on postoperative weeks 6 and 8 (P 〈 0.05). The animals in both the ESPJ and BPJ groups had a similar body weight gain.Intrapancreatic ductal pressure was similar in ESPJ and BPJ. However, pressure in EEPJ was significantly higher than that in ESPJ and BPJ (P 〈 0.05). All three functional parameters, the secretory volume, the flow rate of pancreatic juice, and bicarbonate concentration, were significantly higher in ESPJ and BPJ as compared to EEPJ (P 〈 0.05). However, the three parameters were similar in ESPJ and BPJ. Pancreatography performed after EEPJ revealed dilation and meandering of the main pancreatic duct, and the anastomotic site exhibited a variable degree of occlusion, and even blockage. Pancreatography of ESPJ and BPJ, however, showed normal ductal patency. Histopathology showed that the intestinal mucosa had fused with that of the pancreatic duct, with a gradual and continuous change from one to the other. For EEPJ, the portion of the pancreatic stump protruding into the jejunal lumen was largely replaced by cicatricial fibrous tissue. CONCLUSION: A mucosa-to-mucosa pancreatico- jejuno  相似文献   

18.

Background/Purpose

Liver transplantation is an established therapy for children with end-stage chronic liver disease or acute liver failure. However, despite refinements of surgical techniques for liver transplantation, the incidence of biliary tract complications has remained high in recent years. Therefore, we suggest our anastomotic technique with wide-interval interrupted suture to prevent biliary complications in pediatric living-donor liver transplantation (LDLT).

Methods

Forty-nine LDLTs were performed on 49 pediatric recipients with end-stage liver disease. Biliary reconstruction was performed using a 2.5× magnifying surgical loupe, via end bile duct to side Roux-en-Y hepaticojejunostomy (n?=?47) and duct-to-duct choledochocholedochostomy (n?=?2) with an external stent. A stay suture with 6-0 absorbable materials was placed at each end of the anastomotic orifice. Two interrupted sutures of the posterior row were performed. After completion of the suture of the posterior row, an external transanastomotic stent tube was inserted into the intrahepatic bile duct and was fixed with posterior row material. Finally, two interrupted sutures of the anterior wall were performed, totaling six stitches. The transanastomotic stent tube emerging out of the blind end of the Roux-en-Y limb was covered with a round ligament and was usually left in place for 1?month after the operation.

Results

The median follow-up period was 58.0?months (range 8?C135?months). In 33 recipients, the bile duct was used to perform the reconstruction with a single lumen. In 5 cases, there were 2 bile ducts that were formed to enable a single anastomosis. In 10 cases, there were 2 separated ducts and each duct was anastomosed with the recipient jejunum. In one case, there were 3 ducts that were formed to enable two anastomoses. Twenty-two percent of the living-donor grafts required 2 biliary anastomoses. Forty-four patients (89.8%) are alive (ranging from 8?months to 11?years), and 5 patients have died. Two patients had biliary complications, an anastomotic stricture in one (2.0%) and bile leakage in one. There were no complications due to anastomotic tubes.

Conclusions

Biliary reconstruction with wide-interval interrupted suture prevents anastomotic strictures and bile leakage in pediatric LDLT.  相似文献   

19.
BACKGROUND/AIMS: The objective of this study was to clarify the relationship between the consistency of the pancreas and pancreatic anastomotic leakage after pancreatectomy. METHODOLOGY: Sixty-two patients who underwent proximal pancreatectomy with pancreaticoenterostomy were reviewed with regard to the consistency of the pancreas, size of the main pancreatic duct, postoperative pancreatic juice output, and pancreatic leakage after partial pancreatoduodenectomy. The pancreatic parenchyma was classified as having soft, intermediate and hard consistency (group 1, 2 and 3, respectively). Monitoring the output of pancreatic juice and amylase level in the drainage fluid after operation for the purpose of detecting of dehiscence of pancreaticoenterostomy. RESULTS: The mean pancreatic juice output during a period of 10 days (postoperative days 5 to 14) was 2446 +/- 27 cc in group 1 (n = 26), 846 +/- 13.5 cc in group 2 (n = 19) and 460 +/- 8.1 cc in group 3 (n = 17). Anastomotic leakage occurred in four (15%) patients in group 1, three (15%) in group 2, and none in group 3. In patients with leakage, abrupt decrease or fluctuating output of pancreatic juice occurred and amylase level in the drainage fluid was more than 10,000 IU/L POD 7. CONCLUSIONS: Patients with a pancreatic parenchyma with an intermediate or normal consistency produced more pancreatic juice and had a higher leak rate. Monitoring the output of pancreatic juice and amylase level in the drainage fluid after operation may provide a clue to the detection of dehiscence of pancreaticoenterostomy.  相似文献   

20.
Stenotic pancreatico‐enteric anastomosis is one of the serious late complications after a pancreaticoduodenectomy. We report a case of stenotic pancreaticojejunostomy with a pancreatic juice fistula drained externally, which was treated using percutaneous procedures combined with a rendezvous method. A 77‐year‐old woman was referred to our hospital for an endoscopic treatment to remove a percutaneous drainage tube from a fluid collection due to pancreatic juice fistula. She had undergone pylorus‐preserving pancreatoduodenectomy with Roux‐en‐Y reconstruction due to duodenal carcinoma of Vater's papilla 1 year before the referral to our hospital. Soon after the operation, she had developed a fluid collection adjacent to the anastomosis due to pancreatic juice fistulas and subsequently had undergone its percutaneous drainage. After admission, we tried to dilate the stenotic anastomosis with an endoscopic procedure from the anastomosed jejunal lumen, using an oblique‐viewing endoscope. The endoscope reached a portion of the anastomosis, but did not allow us to visualize the entire anastomosis. We punctured the main pancreatic duct under ultrasonography and fluoroscopy, and advanced the needle into the anastomosed jejunum through the stenotic anastomosis. After putting a guidewire into the anastomosed jejunum through the needle, we introduced an oblique‐viewing endoscope into the anastomosed jejunum and caught hold of the guidewire using grasping forceps. Maintaining tension on the guidewire with a slight pulling force, with some effort we were able to place a 5‐Fr drainage catheter into the jejunum percutaneously and through the anastomosis via the main pancreatic duct. Three weeks after these procedures, we performed balloon dilation of the anastomosis. One week after balloon dilation, removed the percutaneous catheter.  相似文献   

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