肝胆管结石并胆管狭窄手术治疗109例

目的:探讨肝胆管结石并胆管狭窄不同术式的临床疗效。方法:收集肝胆管结石并胆管狭窄患者109例,行Roux-Y式胆管空肠吻合及狭窄矫形术39例,肝叶切除2例,肝叶切除+T管引流7例,肝叶切除+肝肠Roux-Y 24例,空肠间置术6例,加胆总管切开取石探查、胆总管T管引流术13例,皮下空肠盲袢加空肠、胆管Roux-Y吻合术18例。结果:109例患者术后均恢复良好、临床治愈出院,无出血及膈下感染病例,肝功能异常者渐恢复正常,术后残留肝内胆管结石9例,残石率8.26%,发生胆漏1例,均经保守治愈。98例随访1～6年,死亡8例,生存率91.84%。结论:对肝胆管结石并狭窄者术中要正确判断及处理解剖变异,选择合理的手术方式,是降低术后结石复发的关键。

肝内胆管结石合并肝门部胆管狭窄手术51例疗效分析

目的：探讨肝内胆管结石合并肝门部胆管狭窄有效手术方法。方法：收集肝内胆管结石合并肝门部胆管狭窄患者51例,28例行皮下盲袢Roux-en-Y型行胆肠吻合术,其中,13例联用胆道镜进一步治疗;5例行皮下盲袢间置空肠型胆肠吻合术,其中,2例联用胆道镜进一步治疗;13例行皮下盲袢间置空肠胆道腹壁型胆肠吻合术,其中,5例联用胆道镜进一步治疗;5例运用腹腔镜带蒂胆囊瓣胆道修复术治疗。结果：手术无死亡病例;随访6~12月,26例单纯行皮下盲袢Rouxen-Y型胆肠吻合、皮下盲袢间置空肠型胆肠吻合以及皮下盲袢间置空肠胆道腹壁型胆肠吻合术优良率88.5%,20例联合胆道镜治疗优良率90.0%,5例运用腹腔镜进行治疗优良率100%。结论：肝内胆管结石合并肝门部胆管狭窄应根据胆管下端括约肌的功能状态选择相应皮下盲袢术式,拔除T管窦道愈合后发现胆道疾病者联用胆道镜治疗可取得较好疗效;运用腹腔镜带蒂胆囊瓣胆道修复术治疗疗效较好,但仍需进一步扩大病例证实远期疗效。

Management of pancreaticobiliary disease using a new intra-ductal endoscope:The Texas experience

AIM:To evaluate a new single-operator mini-endoscope, Spyglass,for its performance,feasibility and safety in the management of pancreaticobiliary disease. METHODS:In a multicenter retrospective analysis of patients undergoing intraductal endoscopy,we evaluated 128 patients(71 men,mean age 57.6 years).Indications were therapeutic(TX)in 72(56%) and diagnostic(DX)in 56(44%). RESULTS:Peroral endoscopy was performed in 121 and percutaneous in seven.TX indications included CBD stones in 41,PD stones in six,and biliary strictures in 25.DX indications included abnormal LFT’s in 15, abnormal imaging in 38 and cholangiocarcinoma staging in three.Visualization of the stone(s)was considered good in 31,fair in six,and poor in four. Advancement of the electrohydraulic lithotripsy probe was not possible in three patients and proper targeting of the lesion was partial in four patients.A holmium laser was used successfully in three patients.Ductal clearance was achieved in 37 patients after one procedure and in four patients after two procedures.Diagnosis of biliary strictures was modified in 20/29 and confirmed to be malignant in 10/23.Of the modified patients,no diagnosis was available in 17.Spyglass demonstrated malignancy in 8/17 and non-malignancy in nine.Suspected pathology by imaging studies and abnormal LFT’s was modified in 43/63(66%).Staging of cholangiocarcinoma demonstrated multicentric cholangiocarcinoma in 2/3.There was no morbidity associated with the use of Spyglass. CONCLUSION:Spyglass Spyscopeis a first generation, single operator miniature endoscope that can evaluate and treat various biliary and pancreatic tract diseases.

Endoscopic therapy of benign biliary strictures

Benign biliary strictures are being increasingly treated with endoscopic techniques. The benign nature of the stricture should be first confirmed in order to ensure appropriate therapy. Surgery has been the traditional treatment, but there is increasing desire for minimally invasive endoscopic therapy. At present, endoscopy has become the first line approach for the therapy of post- liver transplant anastomotic strictures and distal （Bismuth ! and I） post-operative strictures. Strictures related to chronic pancreatitis have proven more difficult to treat, and endoscopic therapy is reserved for patients who are not surgical candidates. The preferred endoscopic approach is aggressive treatment with gradual dilation of the stricture and insertion of multiple plastic stents. The use of uncovered self expandable metal stents should be discouraged due to poor long-term results. Treatment with covered metal stents or bioabsorbable stents warrants further evaluation. This area of therapeutic endoscopy provides an ongoing opportunity for fresh research and innovation.

Role of Kasai procedure in surgery of hilar bile duct strictures

AIM:To assess the application of the Kasai procedure in the surgical management of hilar bile duct strictures.METHODS:Ten consecutive patients between 2005 and 2011 with hilar bile duct strictures who underwent the Kasai procedure were retrospectively analyzed.Kasai portoenterostomy with the placement of biliary stents was performed in all patients.Clinical characteristics,postoperative complications,and long-term outcomes were analyzed.All patients were followed up for 2-60 mo postoperatively.RESULTS:Patients were classified according to the Bismuth classification of biliary strictures.There were two Bismuth Ⅲ and eight Bismuth Ⅳ lesions.Six lesions were benign and four were malignant.Of the benign lesions,three were due to post-cholecystectomy injury,one to trauma,one to inflammation,and one to inflammatory pseudotumor.Of the malignant lesions,four were due to hilar cholangiocarcinoma.All patients underwent Kasai portoenterostomy with the placement of biliary stents.There were no perioperative deaths.One patient experienced anastomotic leak and was managed conservatively.No other complications occurred perioperatively.During the follow-up period,all patients reported a good quality of life.CONCLUSION:The Kasai procedure combined with biliary stents may be appropriate for patients with hilar biliary stricture that cannot be managed by standard surgical methods.

Endoscopic management of biliary strictures after liver transplantation

Bile duct strictures remain a major source of morbidity after orthotopic liver transplantation (OLT). Biliary strictures are classifi ed as anastomotic or non-anastomotic strictures according to location and are defi ned by distinct clinical behaviors. Anastomotic strictures are localized and short. The outcome of endoscopic treatment for anastomotic strictures is excellent. Nonanastomotic strictures often result from ischemic and immunological events, occur earlier and are usually multiple and longer. They are characterized by a far less favorable response to endoscopic management, higher recurrence rates, graft loss and need for retransplantation. Living donor OLT patients present a unique set of challenges arising from technical factors, and stricture risk for both recipients and donors. Endoscopic treatment of living donor OLT patients is less promising. Current endoscopic strategies for biliary strictures after OLT include repeated balloon dilations and placement of multiple side-by-side plastic stents. Lifelong surveillance is required in all types of strictures. Despite improvements in incidence and long term outcomes with endoscopic management, and a reduced need for surgical treatment, the impact of strictures on patients after OLT is signifi cant. Future considerations include new endoscopic technologies and improved stents, which could potentially allow for a decreased number of interventions, increased intervals before retreatment, and decreased reliance on percutaneous and surgical modalities. This review focuses on the role of endoscopy in biliary strictures, one of the most common biliary complications after OLT.

Endoscopic approach to malignant strictures at the hepatic hilum

Hilar tumors have proven to be a challenge to treat and manage because of their poor sensitivity to conventional therapies and our inability to prevent or to detect early tumor formation. Endoscopic stent drainage has been proposed as an alternative to biliary-enteric bypass surgery and percutaneous drainage to palliate malignant biliary obstruction. Prosthetic palliation of patients with malignant hilar stenoses poses particular difficulties, especially in advanced lesions （type Ⅱ lesions or higher）. The risk of cholangitis after contrast injection into the biliary tree in cases where incomplete drainage is achieved is well known. The success rate of plastic stent insertion is around 80% in patients with proximal tumors. Relief of symptoms can be achieved in nearly all patients successfully stented.

Hand-assisted laparoscopic surgery for complex gallstone disease: A report of five cases

AIM:To describe the use of hand-assisted laparoscopic surg-ery(HALS) as an alternative to open conversion for complex gall-stone diseases, including Mirizzi syndrome (MS) and mimic MS. METHODS: Five patients with MS and mimic MS of 232 consecutive patients undergoing laparoscopic cholecyst-ectomies were analyzed. HALS without a hand-port device was performed as an alternative to open conversion if the anatomy was still unclear after the neck of the gallbladder was reached. RESULTS: HALS was performed on three patients with MS type I and 2 with mimic MS owing to an unclear or abnormal anatomy, or an unusual circumstance in which an impacted stone was squeezed out from the infundibulum or the aberrant cystic duct impossible with laparoscopic approach. The median operative time was 165 min (range, 115-190 min). The median hand-assisted time was 75 min (range, 65-100 min). The median postoperative stay was 4 d (range, 3-5 d). The postoperative course was uneventful, except for 1 patient complicated with a minor incision infection. CONCLUSION: HALS for MS type I and mimic MS is safe and feasible. It simplifies laparoscopic procedure, and can be used as an alternative to open conversion for complex gallstone diseases.

Long-term outcome of endoscopic metallic stenting for benign biliary stenosis associated with chronic pancreatitis

AIM： Endoscopic metal stenting （EMS） offers good results in short to medium term follow-up for bile duct stenosis associated wfth chronic pancreatitis （CP）; however, longer follow-up is needed to determine if EMS has the potential to become the treatment of first choice. METHODS： EMS was performed in eight patients with severe common bile duct stenosis due to CP. After the resolution of cholestasis by endoscopic naso-biliary drainage three patients were subjected to EMS while, the other five underwent EMS following plastic tube stenting. The patients were followed up for more than 5 years through periodical laboratory tests and imaging techniques. RESULTS： EMS was successfully performed in all the patients. Two patients died due to causes unrelated to the procedure： one with an acute myocardial infarction and the other with maxillary carcinoma at 2.8 and 5.5 years after EMS, respectively. One patient died with cholangitis because of EMS clogging 3.6 years after EMS. None of these three patients had showed symptoms of cholestasis during the follow-up period. Two patients developed choledocholithiasis and two suffered from duodenal ulcers due to dislodgement of the stent between 4.8 and 7.3 years after stenting; however, they were successfully treated endoscopically. Thus, five of eight patients are alive at present after a mean follow-up period of 7.4 years. CONCLUSION： EMS is evidently one of the very promising treatment options for bile duct stenosis associated with CP, provided the patients are closely followed up; thus setting a system for their prompt management on emergency is desirable.

Can pigment gallstones be induced by biliary stricture and prevented by medicine in Guinea pigs?

AIM: To determine the relationship between biliary stricture and pigment gallstone formation, and the prevention of pigment gallstones with medicine. METHODS: One hundred and eighteen male guinea pigs were randomly divided into four groups: stricture group (S, n = 30) underwent partial ligation of common bile duct, and fed on regular chow; S plus medicine group (S+M, n = 27) underwent the same operation but fed on medicinal chow (0.3 g chenodeoxycholic acid, 0.5 g glucurolactone, and 0.5 g aspirin were mixed up in 1.2 kg regular chow); medicinal control group (C+M, n = 30) was free of operation, and fed on medicinal chow; and control group (C, n = 31) was free of operation and fed on regular chow. One week later, laparotomy was performed, and the bile of gallbladder was collected, measured, and cultured. RESULTS: Gallstones were identif ied. Pigment gallstones were induced by biliary stricture in 95% (22/23) of S group. In the S+M group, the incidence of gallstone was reduced to 55% (11/20, vs S group, P < 0.01). The changes of indirect bilirubin and ionized calcium in the bile were consistent with gallstone incidences. CONCLUSION: Biliary stricture can cause pigment gallstone formation in guinea pigs, and the medicines used can lower the incidence of gallstones. The bilirubin and ionized calcium play important roles in pigment gallstone formation.

Contrast-free endoscopic stent insertion in malignant biliary obstruction

AIM： To present a case series of MRCP-guided endoscopic biliary stent placement, performed entirely without contrast injection. METHODS： Contrast-free endoscopic biliary drainage was attempted in 20 patients with malignant obstruction, unsuitable for resection on the basis of tumor extent or medical illness. MRCP images were used to confirm the diagnosis of tumor, to exclude other biliary diseases and to demonstrate the stenoses as well as dilation of proximal liver segments. The procedure was carried out under conscious sedation. Patients were placed in the left lateral decubitus position. The endoscope was inserted, the papilla identified and cannulated by a papiUotome. A guide wire was inserted and guided deeply into the biliary tree, above the stenosis, by fluoroscopy. A papillotomy approximately 1 cm. long was performed and the papillotome was exchanged with a guiding-catheter. A 10 Fr＇ Amsterdam-type plastic stent, 7 to 15 cm long, was finally inserted over the guide wire/ guiding catheter by a pusher tube system. RESULTS： Successful stent insertion was achieved in all patients. There were no major complications. Successful drainage, with substantial reduction in bilirubin levels, was achieved in all patients. CONCLUSION： This new method of contrast-free endoscopic stenting in malignant biliary obstruction is a safe and effective method of palliation. However＇ a larger, randomized study comparing this new approach with the standard procedure is needed to confirm the findings of the present study.

Role of interventional therapy in hepatic artery stenosis and non-anastomosis bile duct stricture after orthotopic liver transplantation

AIM： To analyze the clinical manifestations and the effectiveness of therapy in patients with orthotopic liver bansplantation （OLT）-associated hepatic artery stenosis （HAS） and non-anastomosis bile duct stricture.METHODS： Nine cases were diagnosed as HAS and non-anastomosis bile duct stricture. Percutaneous transluminal angioplasty （PTA） was performed in four HAS cases, and expectant treatment in other five HAS cases, percutaneous transhepatic bile drainage, balloon dilation, stent placement were performed in all nine cases.RESULTS： Diffuse intra- and extra-bile duct stricture was observed in nine cases, which was associated with bile mud siltation and biliary infection. Obstruction of the bile duct was improved obviously or removed. Life span/ follow-up period was 13-30 mo after PTA of four HAS cases, 6-23 mo without PTA of other five cases.CONCLUSION： Progressive, non-anastomosis, and diffuse bile duct stricture are the characteristic manifestations of HAS and non-anastomosis bile duct stricture after OLT. These are often associated with bile mud siltation, biliary infection, and ultimate liver failure. Interventional therapy is significantly beneficial.

Successful endoscopic treatment of biliary stricture following mesenteric tear caused by blunt abdominal trauma

Biliary duct injuries are frequently iatrogenic, being associated with surgery for gallbladder stones. However, blunt abdominal trauma such as a motor vehicle crash is a rare cause of extrahepatic biliary stricture. A few reports have been published on biliary strictures treated with endoscopic therapy. In the present study, we describe a suprapancreatic biliary stricture associated with mesenteric tear following road traffic accident. We performed endoscopic stent placement, which was successful in relieving the biliary stricture.

Eosinophilic cholangitis is a potentially underdiagnosed etiology in indeterminate biliary stricture

To investigate presence and extent of eosinophilic cholangitis (EC) as well as IgG4-related disease in patients with indeterminate biliary stricture (IBS).METHODSAll patients with diagnosis of sclerosing cholangitis (SC) and histopathological samples such as biopsies or surgical specimens at University Hospital Frankfurt from 2005-2015 were included. Histopathological diagnoses as well as further clinical course were reviewed. Tissue samples of patients without definite diagnosis after complete diagnostic work-up were reviewed regarding presence of eosinophilic infiltration and IgG4 positive plasma cells. Eosinophilic infiltration was as well assessed in a control group of liver transplant donors and patients with primary sclerosing cholangitis.RESULTSone hundred and thirty-five patients with SC were included. In 10/135 (13.5%) patients, no potential cause of IBS could be identified after complete diagnostic work-up and further clinical course. After histopathological review, a post-hoc diagnosis of EC was established in three patients resulting in a prevalence of 2.2% (3/135) of all patients with SC as well as 30% (3/10) of patients, where no cause of IBS was identified. 2/3 patients with post-hoc diagnosis of EC underwent surgical resection with suspicion for malignancy. Diagnosis of IgG4-related cholangitis was observed in 7/135 patients (5.1%), whereas 3 cases were discovered in post-hoc analysis. 6/7 cases with IgG4-related cholangitis (85.7%) presented with eosinophilic infiltration in addition to IgG4 positive plasma cells. There was no patient with eosinophilic infiltration in the control group of liver transplant donors (n = 27) and patients with primary sclerosing cholangitis (n = 14).CONCLUSIONEC is an underdiagnosed benign etiology of SC and IBS, which has to be considered in differential diagnosis of IBS.

Update of cholangioscopy and biliary strictures

Cholangioscopy remains another modality in the investigation of biliary strictures. At cholangioscopy, the"tumour vessel" sign is considered a specific sign formalignancy. Through its ability to not only visualisemucosa, but to take targeted biopsies, it has a greater accuracy, sensitivity and specificity for malignant strictures than endoscopic retrograde cholangiopancreatography guided cytopathological acquisition. Cholangioscopy however, is time consuming and costly, requires greater technical expertise, and should be reserved for the investigation of undifferentiated strictures after standard investigations have failed.

DIAGNOSIS AND TREATMENT OF THE MIRIZZISYNDROME

Objectives. The aim of this paper is to describe the clinical characteristics, diagnostic procedure and operative management of Mirrizi syndrome. Methods. Sixteen cases of Mirrizi syndrome were selected and reviewed from 1987 to 1997. Results. In the 16 cases, 6 cases were male, 10 cases were female, the average age was 62.7 years old. Ten cases were diagnosed to be Mirrizi syndrome preoperatively(62.5%); 3 cases were considered to bile duct tumor, the other 3 cases were emergency, they were confirmed the diagnosis after the operation. Conclusions. Ultrasound is recommended as the first choice of screening method, while ERCP may confirm the diagnosis. Surgical approach is considered to be the choice and technical procedures are suggested to prevent intraoperative injury and to repair defects of the common bile duct.

Classification and surgical management of benign biliary strictures

Objective:To summarizeandanalyzethecauses,typesandsurgicaltreatmentforbenignbiliarystrictures(BBS).Methods:A totalof568patientswithBBSwerediagnosedandtreatedat ourcenterfrom1975to1998.A-mongthem,352werefemalesandthemeanagewas48.5.Thetypesof biliarystricturewereproposedaccordingto theirsitesanddegrees.Thecausesof BBSwereanalyzedanddifferentprocedureswereperformedinrelationto the typesof strictures.Results:Inlineswiththeclassification,all568patientsweredividedinto6types,thatis, TypeⅠ,papillarystricture(n=71);TypeII or III,strictureof commonbileor hepaticductwithcommonhepatic ductlonger(n=79)or shorter(n=82)than2cm respectively;TypeIV,commonhepaticductabsencebutwithintactconfluence(n=35);TypeV,strictureof theconfluence(n=102);andTypeVI,strictureof leftor rightmainintrahepaticduct(n=199).Themajorcausesof BBS werelithiasis(54.58%),operativestrictures(44.96%)andpostoperativelyin-flammatorystrictures(2.28%).Of568patients,546underwentvariedoperations.In278followedpatients,excellent resultswereachievedin210(75.53%).Themortalityratewas1.69%(9patients).Theincidencerateof complica-tionswas14.29%(78patients).Conclusion:Thelithiasis,operativeandpostoperativeinflammatorystricturesare3majorcausesof BBS.Differentproceduresshouldbe usedaccordingto thedifferenttypesof BBS,andbilio-enteric anastomosisisthemostcommontreatmentforthecases.

Down stream involvement of the bile duct in hepatolithiasis

Objective To evaluate the down stream involvement of the bile duct in hepatolithiasis.Methods Mechanical damage to bile duct epithelia and long standing cholangitis as result of hepatolithiasis play an important role in the carcinogenesis of bile duct epithelia and stricture of the intra- and extra-hepatic bile duct. Macromorphological and microscopic changes in bile duct mucosa of 100 consecutive patients with hepatolithiasis were investigated using intra- or post-operative cholangioscopy. Biopsy specimens of lesions obtained during cholangioscopy were studied with immunohistochemical staining and flow cytometry to determine proliferative activity and DNA content. Five cases of well-proven cholangiocarcinoma were simultaneously studied as controls.Results Of the 100 patients, those with chronic cholangitis accounted for 86% (86/100), proliferative lesions 11% (11/100), adenomatous polyps 1% (1/100), and adenocarcinoma 2% (2/100). The obvious mucosal lesion associated with hepatolithiasis was located down-stream of the bile duct, predominantly in the hilar region, e.g. orifices of the right/left hepatic duct and common hepatic duct (73% mucosa lesions in the hilar region). The intensity of cancer embryonic antigen stain and the proliferative cell nuclear antigen index increased with the development of bile duct lesions. Aneuploid DNA presented mainly in the high degree malignant adenocarcinomas (】80% of cases).Conclusions The obvious mucosal lesions associated with hepatolithiasis were located down-stream of the bile duct, predominantly in the hilar region (73% of mucosal lesions). The proliferative activity of examined bile duct mucosa lesions increased with the development of pathological deterioration, which may contribute to the development of hilar bile duct stricture and hilar cholangiocarcinoma.

The presence and outcome of biliary sphincter disorders in liver-transplant recipients according to the Rome IV classification

Background Biliary sphincter disorders after liver transplantation(LT)are poorly described.We aim to describe the presence and outcome of patients with papillary stenosis(PS)and functional biliary sphincter disorders(FBSDs)after LT according to the updated Rome IV criteria.Methods We reviewed all endoscopic retrograde cholangiopancreatographies(ERCPs)performed in LT recipients between January 2003 and December 2019.Information on clinical and endoscopic findings was obtained from electronic health records and endoscopy databases.Laboratory and clinical findings were collected at the time of ERCP and 1 month after ERCP.Results Among the 1,307 LT recipients,336 underwent 849 ERCPs.Thirteen(1.0%)patients met the updated Rome IV criteria for PS[former sphincter of Oddi dysfunction(SOD)type I]and 14 patients(1.0%)met the Rome IV criteria for FBSD(former SOD type II).Biliary sphincterotomy was performed in 13 PS and 10 FBSD cases.One month after sphincterotomy,bilirubin,gamma-glutamyl transferase and alkaline phosphatase levels decreased in 85%,61%,and 92%of those in the PS group(P¼0.019,0.087,and 0.003,respectively)and in 50%,70%,and 80%of those in the FBSD group(P¼0.721,0.013,and 0.093,respectively).All the 14 patients initially suspected of having a FBSD turned out to have a different diagnosis during the follow-up.Conclusions PS after LT is uncommon and occurs in only 1%of LT recipients.Our data do not support the presence of an FBSD after LT.Sphincterotomy is a safe and effective procedure in LT recipients with PS.