Clinical efficacy of basiliximab-induced glucose-free corticosteroid immunosuppressive regimen after liver transplantation / 中华消化外科杂志

Objective To investigate the clinical efficacy of basiliximab-induced glucose-free corticosteroid immunosuppressive regimen after liver transplantation.Methods The retrospective cohort study was conducted.The clinicopathological data of 227 patients with liver transplantation who were admitted to Bayi Hospital affiliated to Nanjing University of Traditional Chinese Medicine from January 2010 to October 2016 were collected.Of the 227 patients,125 who postoperatively received a glucose-free corticosteroid immunosuppressive regimen using a monoclonal antibody + tacrolimus + mycophenolate mofetil tablets were allocated into the hormone-free group,and 102 who were postoperatively treated with the immunosuppressive regimen using glucocorticoid steroid + tacrolimus + mycophenolate mofetil tablets were allocated into the hormone group.Observation indicators:(1) comparison of follow-up and survival;(2) comparison of postoperative infection,rejection and biliary stenosis between groups.Follow-up using outpatient examination and telephone interview was performed to detect postoperative survival,infection,rejection and biliary stenosis up to June 2017.The measurement data with normal distribution were represented as (x) ± s,and comparison between groups was done by the t test.Measurement data with skewed distribution were described as M (P25,P75) and M (range),and comparison between groups was analyzed using the rank sum test.The count data were compared by the chi-square test.Kaplan-meier method was used to draw survival curve and calculated survival rate.Log-rank test was used for survival analysis.Results (1) Comparison of follow-up and survival:patients between groups were followed up for 9-89 months,with a median time of 45 months.The 1-and 3-year overall survival rates were respectively 93.25％,85.24％ in the hormone-free group and 89.89 ％,74.22％ in the hormone group,with a statistically significant difference (x2 =8.450,P＜0.05).(2) Comparison of postoperative infection,rejection and biliary stenosis between groups:① The total cases with postoperative infections,cases with infection of Klebsiella pneumoniae,Staphylococcus aureus,Candida,Acinetobacter baumannii and Stenotrophomonas maltophilia were 25,18,3,2,2,0 in the hormone-free group and 40,26,6,3,3,2 in the hormone group,respectively,showing a statistically significant difference between groups (x2 =10.149,P＜0.05).The patients between groups with postoperative infection were treated with active anti-infective symptomatic treatment.Three patients in the hormone group died of severe pulmonary infection,and the remaining patients in both groups were improved.② The cases with postoperative rejection in the hormone-free group and hormone group were 6 and 5,respectively,with no statistically significant difference (x2 =0.950,P＞ 0.05).The rejection of both groups occurred within 1 week postoperatively.Two patients in the hormone group were treated with glucocorticoid hormonal shock.The other patients in the 2 groups were improved by adjusting the amount of tacrolimus and mycophenolate mofetil tablets.③ The cases with postoperative biliary stenosis in the hormone-free group and the hormone group were 32 and 8 respectively,with a statistically significant difference (x2 =12.200,P＜0.05).In the hormone group,biliary stenosis occurred after stopping glucocorticoids.The patients with biliary stenosis were improved after biliary stent implantation by endoscopic retrograde cholangio pancreatography (ERCP).Conclusion The basiliximab-induced glucose-free corticosteroid immunosuppressive regimen after liver transplantation is safe and feasible,and it can significantly reduce the incidence of postoperative infection and improve long-term overall survival compared with the conventional glucocorticoid immunosuppressive regimen,but increased postoperative biliary stenesis.

Biliary complications after liver transplantation / Complicações biliares pós-transplante hepático

ABSTRACT Background: Biliary reconstitution has been considered the Achilles's heel of liver transplantations due to its high rate of postoperative complications. Aim: To evaluate the risk factors for occurrence of biliary strictures and leakages, and the most efficient methods for their treatment. Method: Of 310 patients who underwent liver transplantation between 2001 and 2015, 182 medical records were retrospectively analyzed. Evaluated factors included demographic profile, type of transplantation and biliary reconstitution, presence of vascular and biliary complications, their treatment and results. Results: 153 (84.07%) deceased donor and 29 (15.93%) living donor transplantations were performed. Biliary complications occurred in 49 patients (26.92%): 28 strictures (15.38%), 14 leakages (7.7%) and seven leakages followed by strictures (3.85%). Hepatic artery thrombosis was present in 10 patients with biliary complications (20.4%; p=0,003). Percutaneous and endoscopic interventional procedures (including balloon dilation and stent insertion) were the treatment of choice for biliary complications. In case of radiological or endoscopic treatment failure, surgical intervention was performed (biliodigestive derivation or retransplantation (32.65%). Complications occurred in 25% of patients treated with endoscopic or percutaneous procedures and in 42.86% of patients reoperated. Success was achieved in 45% of patients who underwent endoscopic or percutaneous procedures and in 61.9% of those who underwent surgery. Conclusion: Biliary complications are frequent events after liver transplantation. They often require new interventions: endoscopic and percutaneous procedures at first and surgical treatment when needed. Hepatic artery thrombosis increases the number of biliary complications.

RESUMO Racional: A reconstituição biliar é considerada o calcanhar-de-Aquiles do transplante hepático devido à sua elevada taxa de complicações pós-operatórias. Objetivo: Analisar os fatores de risco para ocorrência de estenoses e fístulas biliares e os métodos terapêuticos mais eficientes para seu tratamento. Método: De 310 pacientes transplantados entre 2001 e 2015, 182 prontuários foram analisados retrospectivamente. Foram avaliados o perfil demográfico dos pacientes, tipo de transplante e reconstituição biliar, presença de complicações biliares e vasculares, tratamento utilizado e seus resultados. Resultados: Foram realizados 153 (84,07%) transplantes hepáticos cadavéricos e 29 intervivos (15,93%). Complicações biliares ocorreram em 49 pacientes (26,92%): 28 estenoses (15,38%), 14 fístulas (7,7%) e sete fístulas seguidas de estenose (3,85%). Trombose de artéria hepática esteve presente em 10 pacientes com complicações biliares (20,4%, p=0,003). Os tratamentos de escolha foram os procedimentos endoscópicos ou percutâneos (incluindo dilatação por balão e colocação de próteses (40,82%). No insucesso deles, foi realizado tratamento cirúrgico (derivação biliodigestiva ou retransplante (32,65%). Complicações ocorreram em 25% dos pacientes que fizeram procedimentos endoscópicos ou percutâneos e em 42,86% dos submetidos ao tratamento cirúrgico. A resolução das complicações biliares foi de 45% com os procedimentos endoscópicos ou percutâneos e de 61,9% com o cirúrgico. Conclusão: Complicações biliares são frequentes após transplante hepático. Comumente requerem novas intervenções. Os procedimentos endoscópicos e percutâneos são a primeira escolha e os cirúrgicos, empregados na falha destes. Trombose de artéria hepática aumenta a incidência de complicações biliares.

Progresses of interventional treatment in biliary stenosis / 中国介入影像与治疗学

Interventional therapy is an important treatment for biliary stenosis.The treatment methods are different ac cording to the different causes.Conventional interventional therapy include biliary drainage,balloon dilatation and stent implantation.There are some new treatment methods such as radiofrequency catheter ablation and biliary stent loaded with 125I seeds.The applications of interventional therapy in biliary stenosis were reviewed in this article.

Endoscopic diagnosis and treatment for post cholecystectomy bile duct stenosis in 120 cases / 中华普通外科杂志

Objective To evaluate endoscopic management of bile duct benign and malignant stenosis after cholecystectomy.Methods A retrospective analysis was made on 120 bile duct benign and malignant stenosis developed after cholecystectomy, ERCP diagnosis and treatment was evaluated.Results Of the 120 cases, there was bile duct stenosis in 79 cases (including 61 cases with common bile duct stones), papillary inflamnatory stenosis in 15 cases, diverticulum associated duodenal papillitis in 8 cases, malignant biliary stricture in 8 cases.Among these 120 cases there were hilar benign stenosis in 3 cases, 3 cases with hilar malignant tumor, 4 cases of chronic pancreatitis.Benign bile duct stricture was treated with plastic stent drainage, concomitant calculi by endoscopic stone extraction.Papillary stenosis and papillitis were managed by EST or EPBD, inoperable malignant biliary stenosis by mental stent placement.Conclusions After cholecystectomy biliary stenosis treated by ERCP and endoscopic therapy is miniinvasive helping control biliary infection when the diagnosis of benign stenosis of bile duct is established.

Estenosis crítica de conducto hepático común por anillo vascular: reporte de un caso / Common bile duct stricture caused by vascular ring: A case report

Introduction: The most common congenital malformations of the bile duct are biliary atresia and choledochal cyst. In addition, the most common liver anatomical variation is the right hepatic artery aberration. The goal of this study is to characterize a patient with this disease and propose the hepatoduodenal anastomosis as surgical treatment. Case report: One-month-old patient with suspected congenital biliary atresia due to progressive jaundice and acholia since birth. Liver tests consistent with a cholestatic pattern and brain MRI scan consistent with biliary atresia. Periods of decreased bilirubin and sporadic slight pigmentation of depositions were described. The surgical finding was a bile duct stricture due to a vascular ring caused by aberrant right hepatic artery. Resection of bile duct and hepatic-duodenal bypass were performed. The patient evolved satisfactorily from this condition. Conclusion: There are few reports of biliary obstruction due to vascular malformations. It is important to keep in mind that not all neonatal jaundice episodes are caused by biliary atresia or choledo-chal cyst. The clinical course, laboratory tests and imaging should be considered and in the case of suspicion, further exploration should take place.

Introducción: Las malformaciones congénitas de la vía biliar más frecuentes son la atresia de vías biliares y quiste de colédoco. Por otro lado, la variante anatómica hepática más común es la aberración de la arteria hepática derecha. El objetivo es caracterizar un paciente portador de esta patología y plantear la hepato-duodeno anastomosis como tratamiento quirúrgico. Caso clínico: Paciente de 1 mes de edad, con sospecha de Atresia de Vía Biliar congénita por ictericia progresiva y acolia desde recién nacido. Pruebas hepáticas concordantes con un patrón colestásico y resonancia magnética compatible con atresia de vías biliares. Evolucionó con períodos de descenso de bilirrubina y leve pigmentación, esporádica, de deposiciones. El hallazgo quirúrgico fue una estenosis crítica de vía biliar a nivel del conducto hepático común debido a un anillo vascular por una arteria hepática derecha aberrante. Se realizó una sección de vía biliar y una derivación hepato-duodenal. Evolucionó con una resolución completa de su patología. Conclusión: Existen pocos reportes de obstrucción de vía biliar por malformaciones vasculares. Es importante tener presente que no todas las ictericias neonatales son por atresia de vías biliares o quiste de colédoco. Se debe considerar la evolución clínica, laboratorio e imágenes, y si existen sospechas, explorar.

Reconstrucción de la vía biliar junto al tratamiento adyuvante con ácidoursodesoxicólico en lesiones/estenosisiatrogénicas posterior a colecistectomías. Resultados iniciales / Biliary reconstruction surgery follow by adju-vant therapy with ursodesoxicolcy acid in injury/stenosis after cholecistectomy. Prelimi-nary results

El tratamiento de la estenosis biliar benigna (EBB) constituye unreto médico, más del 70% de los casos son resueltos endoscópica-mente, reservando los más complejos para el abordaje quirúrgico,con una tasa éxito que ronda del 92 % al 60%. Una técnica qui-rúrgica impecable junto a factores favorables del paciente es la prin-cipal garantía de éxito. Objetivo: Mantener un adecuado flujo biliar es uno de los factoresprincipales para evitar inflamación y éstasis biliar, por lo que hemosemprendido el siguiente protocolo de estudio con terapia adyuvantecon ácido ursodesoxicólico posterior a la reconstrucción biliar.Métodos: Ensayo clínico prospectivo no aleatorizado, donde seincluyen pacientes con estenosis biliar benigna desde agosto 2012hasta agosto 2014.Resultados:Se han incluido 13 pacientes con preponderancia delsexo femenino con un 77 %, las estenosis tipo Bismuth 1 y 2 ocu-paron un 23 %, mientras que para Bismuth 4 y 5 un 15,38 % res-pectivamente, las EBB producto en anastomosis biliodigestiva ocu-rrió en un 23 %. El seguimiento promedio fue de 13,3 meses.Posterior al tratamiento, sólo 1 paciente experimentó colangitis enausencia de estenosis. Hasta la fecha de seguimiento ninguno hapresentado re-estenosis.Conclusión: Una técnica quirúrgica impecable junto al tratamientoadyuvante con ácido ursodesoxicólico pareciera ofrecer buenosresultados a fin de evitar la re-estenosis y la colangitis, por lo que suaplicación debe ser estudiada por periodos de tiempo prolongados(AU)

The benign biliary stenosis is a medical challenge; more than 70%of them are resulted endoscopically, leaving the most difficult casesfor surgical treatment, which can reach a success between 92% and60%. Meticulous surgical techniques with better patient prognosticfactors are guarantee of success. Objective:The adequate biliary flow is related with less inflationand less biliary stasis, that's why we decide to use ursodesoxicolicacid as an adjuvant treatment after biliary reconstruction surgery.Methods: Non randomized clinical trial, including patients betweenAugust 2012 to August 2014 with benign biliary stenosis.Results:Were included 13 patients, most of them women 77%.Type 1 and 2 Bismuth 23%, Bismuth 4 -5 15,38 % respectively, and23 % for stenosis of the biliodigestive anastomosis. The medianfollow up was 13,3 months. After surgical reconstruction there wereonly 1 patient who revealed cholangitis, and no restenosis in thefollow up period. Conclusion:A meticulous surgical technique and adjuvant treat-ment with ursobilanic acid seem to show good results avoiding re-stenosis and cholangitis, prolong study period is required(AU)

Percutaneous transhepatic cholangioscopy for biliary stenosis due to iatrogenic bile duct injuries / 中国微创外科杂志

Objective To discuss the etiology and treatment of extrahepatic biliary stenosis due to iatrogenic bile duct injuries. Methods A total of 12 cases of extrahepatic biliary stenosis after iatrogenic bile duct injuries(including 5 cases of open cholecystectomy and 7 cases of laparoscopic cholecystectomy) from January 1998 to January 2005 in this hospital was reviewed.After the establishment of a percutaneous transhepatic access,choledochoscopic stone removal,balloon dilatation,and drainage stent placement were performed for treating biliary stenosis.Results A F_(20) Gruntzig balloon catheter was employed for bile duct dilatation.The plastic drainage stent at 6~8 mm in diameter was successfully placed after 2 times of dilatation in 8 cases and after 3 times of dilatation in 4 cases,for 6~12 months of indwelling.Follow-up observations in the 12 cases for 2~3 years (mean,2.6 years) found no abdominal pain,fever,or jaundice.B-ultrasonography and MRCP findings showed no biliary stenosis and recurrent stones.Conclusions Choledochoscopic stone removal,balloon dilatation,and drainage stent placement are minimally invasive,safe,and effective in the treatment of extrahepatic biliary stenosis.

Fatores de risco e conduta nas complicações do trato biliar no transplante hepático / Risk factors and management of biliary tract complications in liver transplantation

A reconstrução biliar é um dos pontos vulneráveis do transplante hepático apresentando incidência de complicações biliares, variando de 10 a 35%, nos diversos estudos da literatura. Esse trabalho tem por objetivo apresentar a experiência do nosso serviço em relação à incidência e ao manejo das complicações biliares notransplante de fígado. Foram incluídos no estudo 147 transplantes hepáticos ortotópicos, com idade média de 37,3 anos, correspondendo a 88 procedimentos em pacientes do sexo masculino e 59 do sexo feminino. Complicações biliares ocorreram em 27 transplantes (18,36%) em 25 pacientes (dois retransplantes). A presença derejeição celular e de complicações vasculares foi identificada como fator de risco para as complicações biliares.A idade, o sexo, a etiologia da cirrose e a técnica utilizada na reconstrução biliar não foram fatores de risco. No total, foram empregados 52 cursos terapêuticos: tratamento cirúrgico em 23 vezes; tratamento endoscópico em15 vezes; retransplante em sete vezes; drenagem biliar transparieto-hepática em seis vezes e um paciente está emlista de espera para retransplante. Conclui-se deste estudo que as complicações biliares são freqüentes após o transplante hepático e que as vasculares e a rejeição celular são fatores de risco.

Biliary reconstruction is a vulnerable step of liver transplantation, presenting an incidence of biliary complicationsbetween 10 to 35% in many studies. Our aim is to present our incidence and treatment of biliary complications, in atotal of 147 orthotopic liver transplantations, 88 males and 59 females, with an mean age of 37 years. Biliary complications occurred in 27 transplants (18,36%) performed in 25 patients (two retransplants). Cellular rejection and vascular complications were identified as risk factors for biliary complications. Age, sex, etiology of cirrhosis and biliary reconstruction technique were not risk factors. Fifty-two therapeutic courses were performed: 23 surgical treatments, 15 endoscopic treatments, seven retransplants, six external biliary drainage and one patient is waitingretransplantation. In conclusion, biliary complications are frequent after liver transplantation and vascular complications and cellular rejection are risk factors for them.

Analysis of Surgical Treatments for Hepatolithiasis According to the Site of Biliary stenosis / 한국간담췌외과학회지

BACKGROUND: Hepatolithiasis is found predominantly in Southeast Asia and although it is a pathophysiologically benign disease, it frequently causes serious problems such as recurrent cholangitis, liver abscess, obstructive jaundice and sepsis. As a result it is said to be a clinically malignant disease. In order to select the best surgical treatment according to location of biliary stenosis, we analyzed the clinical manifestation of hepatolithiasis and follow-up results. METHODS: We retrospectively reviewed 42 cases of hepatolithiasis treated by various surgical treatments from Jan. 1987 to Jun. 1998 at the Department of Surgery of Kangnam General Hospital. RESULTS: In cases where the site of biliary stenosis was limited to the left intrahepatic duct, the relative incidence of good results was higher in the hepatectomy group(88.2%) than in the drainage group(0%). And in cases of biliary stenosis in both intrahepatic ducts, the relative incidence of good results was higher in the hepatectomy group(33.3%) than in the drainage group(0%). And in cases of no biliary stenosis, the relative incidence of good results was high(66.7%) even in the drainage group. CONCLUSION: Hepatic resection is a satisfactory treatment option for patients with hepatolithiasis, especially in the cases of biliary stenosis.