Duplicación del colédoco asociado a unión biliopancreática anómala: Reporte de caso / Common bile duct duplication associated with anomalous biliopancreatic junction: A case report

Introducción. La duplicación del colédoco es una anomalía congénita poco frecuente. En la mayoría de los casos este defecto se asocia a cálculos en la vía biliar, unión pancreatobiliar anómala, pancreatitis, cáncer gástrico o colangiocarcinoma. Por esta razón, el diagnóstico y el tratamiento temprano son importantes para evitar las complicaciones descritas a futuro. Métodos. Se presenta el caso de una paciente de 30 años, con antecedente de pancreatitis aguda, con cuadro de dolor abdominal crónico, a quien se le realizaron varios estudios imagenológicos sin claro diagnóstico. Fue llevada a manejo quirúrgico en donde se documentó duplicación del colédoco tipo II con unión pancreatobiliar anómala. Resultados. Se hizo reconstrucción de las vías biliares y hepatico-yeyunostomía, con adecuada evolución postoperatoria y reporte final de patología sin evidencia de tumor. Conclusión. El diagnóstico se hace mediante ecografía endoscópica biliopancreática, colangiorresonancia o colangiopancreatografía retrógrada endoscópica. El tratamiento depende de si está asociado o no a la presencia de unión biliopancreática anómala o cáncer. Si el paciente no presenta patología neoplásica, el tratamiento quirúrgico recomendado es la resección del conducto con reconstrucción de las vías biliares.

Introduction. Double common bile duct is an extremely rare congenital anomaly. This anomaly may be associated with bile duct stones, anomalous biliopancreatic junction, pancreatitis, bile duct cancer, or gastric cancers. Thus, early diagnosis and treatment is important to avoid complications. Clinical case. We report a rare case of double common bile duct associated with an anomalous biliopancreatic junction in a 30-year-old female, with prior history of acute pancreatitis, who presented with chronic abdominal pain. She underwent several imaging studies, without clear diagnosis. She was taken to surgical management where duplication of the type II common bile duct was documented with anomalous pancreatobiliary junction. Results. Reconstruction of the bile ducts and hepatico-jejunostomy were performed, with adequate postoperative evolution and final pathology report without evidence of tumor. Conclusion. Diagnosis is usually performed by an endoscopic ultrasound, magnetic resonance cholangiopancrea-tography, or endoscopic retrograde cholangiopancreatography. Treatment depends on the presence of anomalus biliopancreatic junction or concomitant cancer. In cases without associated malignancy, resection of bile duct and biliary reconstruction is the recommended surgical treatment.

Perforación colónica por endoprótesis biliar impactada / Colonic perforation due to impacted biliary stent

Introducción. La colocación de endoprótesis biliares es cada día más frecuente por ser actualmente una de las mejores opciones para el tratamiento de patologías de la vía biliar. La migración de las endoprótesis es una de las complicaciones que puede ocurrir en hasta un 10,8 % de los pacientes, pero en muy raras ocasiones llegan a causar una perforación intestinal. Caso clínico. Se trata de una paciente de 61 años, a quien cinco años atrás se le realizó una colangiopancreatografía retrógrada endoscópica por coledocolitiasis. Consultó por presentar dolor abdominal, y al examen físico se encontraron abdomen agudo y plastrón en fosa ilíaca izquierda a la palpación. La tomografía computarizada informó un cuerpo extraño a nivel del colon descendente, con perforación del mismo. Se realizó laparotomía exploratoria y colostomía por perforación del colon sigmoides secundaria a prótesis biliar migrada. Resultados. La paciente evolucionó favorablemente y a los seis meses se realizó el cierre de la colostomía, sin complicaciones. Conclusión. Los pacientes a quienes se les colocan prótesis biliares requieren un seguimiento adecuado para evitar complicaciones que, aunque raras, pueden ocurrir, como la migración intestinal con perforación. El tratamiento de dichas complicaciones se hace por vía endoscópica, laparoscópica o laparotomía en caso de complicación severa.

Introduction. Endoscopic placement of biliary stents is becoming more common every day, as it is currently one of the best options for the treatment of bile duct pathologies. One of the complications that can occur is the migration of the endoprostheses in up to 10.8% of patients, which in very rare cases can cause intestinal perforation. Clinical case. This is a 61-year-old female patient, who underwent endoscopic retrograde cholangiopancreatography five years ago for choledocholithiasis. She consulted due to abdominal pain, with a physical examination that upon palpation documented an acute abdomen and a palpable plastron in the left iliac fossa. The computed tomography revealed a foreign body at the level of the descending colon, with perforation. Exploratory laparotomy and colostomy were performed due to perforation of the sigmoid colon secondary to migrated biliary prosthesis. Results. The patient progressed favorably and six months later the colostomy was closed without complications. Conclusions. Patients who receive biliary stents require adequate follow-up to avoid complications that, although rare, may occur, such as intestinal migration with intestinal perforation. The treatment of these complications can be endoscopic, laparoscopic or laparotomy in case of severe complication.

Advances in the differential diagnosis of malignant bile duct stenosis / 临床肝胆病杂志

There are various etiologies for extrahepatic bile duct stenosis， and pharmacotherapy and endoscopic intervention can achieve a good clinical effect in benign stenosis. Early diagnosis and timely surgical treatment of malignant stenosis may prolong the survival time of patients. However， there are still difficulties in the differential diagnosis of malignant bile duct stenosis. This article reviews the application of serology， radiology， endoscopic techniques， and artificial intelligence in the differential diagnosis of malignant bile duct stenosis， so as to provide strategies and references for formulating clinical diagnosis and treatment regimens.

Progress in diagnosis and treatment of biliary anastomotic stricture after liver transplantation / 器官移植

In recent years, with the development of organ preservation, surgical techniques, perioperative management and immunosuppression regimens, the success rate of liver transplantation and survival rate of the recipients have been significantly enhanced. Liver transplantation has become the optimal treatment for patients with end-stage liver disease. However, biliary complications still commonly occur after liver transplantation, especially biliary anastomotic stricture. Severe biliary anastomotic stricture will not only increase the cost of treatment, but also lead to graft loss and even affect the survival rate of recipients. Therefore, timely diagnosis and treatment of biliary anastomotic stricture play a significant role in improving the survival rate of liver transplant recipients. In this article, the risk factors, clinical symptoms, diagnosis and treatment of biliary anastomotic stricture after liver transplantation were reviewed, aiming to provide novel ideas for the research, diagnosis and treatment of biliary anastomotic stricture after liver transplantation, and further enhance clinical efficacy of liver transplantation and the quality of life of recipients.

Efficacy of endoscopic retrograde cholangiopancreatography combined with electrohydraulic lithotripsy under the direct view of eyeMax biliary-pancreatic imaging system in treatment of difficult choledocholithiasis / 临床肝胆病杂志

ObjectiveTo investigate the safety and efficacy of endoscopic retrograde cholangiopancreatography （ERCP） combined with electrohydraulic lithotripsy under the direct view of eyeMax biliary-pancreatic imaging system in the treatment of difficult choledocholithiasis. MethodsA retrospective analysis was performed for the clinical data of 12 patients with difficult choledocholithiasis who underwent ERCP and electrohydraulic lithotripsy under the direct view of eyeMax biliary-pancreatic imaging system in Department of Gastroenterology， Jilin People’s Hospital， from May to November 2022. The clinical effect of lithotripsy and lithotomy was observed， and postoperative complications and time of surgical operation were assessed. ResultsAmong the 12 patients， 11 （91.67%） were successfully treated by electrohydraulic lithotripsy under direct view， 9 （75.00%） achieved first-attempt success in lithotripsy， and 11 （91.67%） had complete removal of calculi； 1 patient was found to have stenosis of the bile ducts caused by multiple biliary tract surgeries， and grade Ⅱ intrahepatic bile duct stones above the sites of stenosis were removed under direct view， but there were still residues of grade Ⅲ intrahepatic bile duct stones， which led to the fact that complete calculus removal was not achieved. The mean time of ERCP operation was 91.3±26.2 minutes， including a time of 41.8±22.2 minutes for energy lithotripsy. There were 2 cases of postoperative biliary tract infection which were improved after anti-infective therapy， 2 cases of hyperamylasemia which were not given special treatment， and 3 cases of mild pancreatitis which were improved after symptomatic medication， and there were no complications such as bleeding and perforation. ConclusionERCP combined with electrohydraulic lithotripsy under the direct view of eyeMax biliary-pancreatic imaging system is safe， effective， and feasible in the treatment of difficult choledocholithiasis.

Prognostic role of magnetic resonance imaging of the abdomen with intravenous contrast and magnetic resonance cholangiopancreatography in primary sclerosing cholangitis / Papel prognóstico da ressonância magnética do abdome com contraste intravenoso e colangiopancreatografia por ressonância magnética na colangite esclerosante primária

Abstract Objective: To evaluate the usefulness of Anali scores, determined by magnetic resonance imaging, for predicting the prognosis of primary sclerosing cholangitis (PSC) and to analyze interobserver variability, as well as to assess the impact of periportal edema and heterogeneous signal intensity on diffusion-weighted imaging of the liver. Materials and Methods: This was a retrospective cohort study of 29 patients with PSC and baseline magnetic resonance imaging. Anali scores, without gadolinium (0-5 points) and with gadolinium (0-2 points), were calculated by two radiologists. Clinical end-points included liver transplantation, cirrhotic decompensation, and death. We calculated intraclass correlation coefficients (ICCs) for interobserver agreement on the Anali scores, performed Kaplan-Meier survival analysis comparing event-free survival among the score strata, and calculated the areas under receiver operating characteristic curves to determine sensitivity and specificity. Results: Among the patients with a clinical event, the median Anali score was 4 (interquartile range [IQR], 2-5) without gadolinium and 2 (IQR, 1-2) with gadolinium, compared with 1 (IQR, 1.0-2.5) and 1 (IQR, 0.25-1.0), respectively, among those without a clinical event. The ICC was 0.79 (95% confidence interval: 0.57-0.91) for the Anali score with gadolinium and 0.99 (95% confidence interval: 0.98-0.99) for the Anali score without gadolinium. Periportal edema and heterogeneous signal intensity in the liver on diffusion-weighted imaging showed no statistical impact on clinical events (p = 0.65 and p = 0.5, respectively). Conclusion: Anali scores correlate with clinical events in PSC, with a high level of interobserver agreement.

Resumo Objetivo: Avaliar a utilidade dos escores Anali determinados por ressonância magnética para prever o prognóstico da colangite esclerosante primária (CEP), analisar a variabilidade interobservador e avaliar o impacto do edema periportal e do sinal heterogêneo do fígado em imagens ponderadas por difusão. Materiais e Métodos: Estudo retrospectivo de coorte de 29 pacientes com CEP e ressonância magnética de base. Os escores Anali sem gadolínio (0 a 5 pontos) e com gadolínio (0 a 2 pontos) foram calculados por dois radiologistas. Os desfechos clínicos incluíram transplante de fígado, descompensação cirrótica ou morte. Foram realizados coeficiente de correlação intraclasse (CCI) para a concordância interobservador com relação ao escore Anali, análise de sobrevivência de Kaplan-Meier comparando o tempo livre de eventos de acordo com o escore, e área sob a curva característica de operação do receptor para sensibilidade e especificidade. Resultados: Nos pacientes com evento clínico, a mediana do escore Anali sem gadolínio foi 4 (intervalo interquartil [IIQ]: 2-5) e com gadolínio foi 2 (IIQ: 1-2), enquanto nos pacientes sem evento clínico o escore sem gadolínio foi 1 (IIQ:1-2,5) e com gadolínio foi 1 (IIQ: 0,25-1). A concordância interobservador com gadolínio foi CCI = 0,79 (intervalo de confiança 95%: 0,57-0,91) e sem gadolínio foi CCI = 0,99 (intervalo de confiança 95%: 0,98-0,99). O edema periportal (p = 0,65) e o sinal heterogêneo do fígado nas imagens ponderadas por difusão (p = 0,5) não apresentaram impacto nos eventos clínicos. Conclusão: Os escores Anali se correlacionam com eventos clínicos na CEP, com alto grau de concordância interobservador.

Endoscopic Ultrasound-Directed Transgastric Endoscopic Retrograde Cholangiopancreatography in a Patient with Gastric Bypass. Report of the First Local Case

We describe the first case in our environment of endoscopic ultrasound (EUS)-assisted transgastric endoscopic retrograde cholangiopancreatography in a patient with gastric bypass surgery. The procedure was performed with a side-viewing duodenoscope through a jejunogastrostomy using apposing stents, placed with EUS assistance, and a standard technique and instruments.

Se describe el primer caso en nuestro medio de colangiopancreatografía retrógrada endoscópica transgástrica asistida por endosonografía en una paciente con cirugía de baipás gástrico. El procedimiento se realizó con duodenoscopio de visión lateral a través de una yeyunogastrostomía por stent de aposición, emplazado con asistencia endosonográfica y con una técnica e instrumental estándar.

Colangiopancreatografía endoscópica asistida por laparoscopia para el tratamiento de coledocolitiasis en pacientes con Y de Roux / Laparoscopic-assisted endoscopic cholangiopancreatography for the treatment of choledocholithiasis in patients with Roux-en-Y

Introducción. Los pacientes con antecedente de baipás gástrico que presentan coledocolitiasis no pueden ser tratados con la técnica convencional de colangiopancreatografía retrógrada endoscópica. En estos casos, la vía transgástrica abierta o asistida por laparoscopia, se convierte en una excelente alternativa a la exploración abierta de la vía biliar. Métodos. Estudio retrospectivo que incluyó pacientes adultos con coledocolitiasis y antecedente de gastrectomía subtotal o baipás gástrico con Y de Roux, llevados a colangiopancreatografía endoscópica transgástrica laparo-asistida, entre enero de 2019 y diciembre de 2021, en la Clínica CES de Medellín, Colombia. Resultados. Se encontraron siete pacientes, todos con antecedente de baipás gástrico para el manejo de la obesidad. La tasa de identificación y canulación de la vía biliar y extracción de cálculos fue del 100 % mediante el abordaje transgástrico laparo-asistido. Conclusión. De acuerdo con varias revisiones sistemáticas, esta técnica es relativamente fácil de implementar y segura, presentando una tasa de complicaciones inferior a 5 %. Se propone una variante de esta técnica

Introduction. Patients with a history of gastric bypass who present with choledocholithiasis cannot be treated with the conventional technique of endoscopic retrograde cholangiopancreatography. In these cases, the open or laparoscopic-assisted transgastric approach becomes an excellent alternative to open bile duct gastric exploration. Methods. A retrospective review of patients with choledocholithiasis and a history of subtotal gastrectomy or gastric bypass with Roux-en-Y, who underwent laparo-assisted transgastric endoscopic cholangiopancreatography, was conducted between January 2019 and December 2021 at Clínica CES de Medellín, Colombia. Results. Seven patients were found, all with a history of gastric bypass secondary to obesity. The rate of bile duct identification and cannulation, and stone removal was 100% using the laparo-assisted transgastric approach. Conclusion. According to several systematic reviews, this technique is relatively easy to implement and safe, presenting a rate of complications less than 5%. A variant to this technique is proposed

Unusually large number of gall stones removed through laparoscopic cholecystectomy from a single patient- A case report

Gallstone disease is characterized by the formation of calculi in the gall bladder or the biliary tract. It may be asymptomatic or present as biliary colic or with complicated disease. Laparoscopic cholecystectomy is the mainstay of treatment for symptomatic gall stones. We describe a case of Gallstone disease in a 43-year-old female, where over seven thousand stones were removed through a Laparoscopic procedure. This is an Open Access (OA) journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.

Revisión bibliográfica de Fasciolosis biliar: propósito de un caso / Bibliographic review of biliary fasciolosis: purpose of a case

The biliary pathology, is undoubtedly one of the most frequent surgical pathologies in Chile, statistical data establish the incidence of biliary pathology in over 20 years 30% of women have biliary lithiasis, of these 10% will present some complication as it is coledocolithiasis. On the other hand, hepatic fascioliasis or dystomatosis is a disease caused by hepatic fasciola, or duela, sabuaypé or Distomun hepaticum, corresponds to a flatworm, trematode of the digenea class, with affinity to stay in liver tissue, which when performing the biological cycle of the parasite can be the cause of choledocholithiasis, cholecystitis, cholangitis, pancreatitis, among others. We present a clinical case of chronic intracholedocianfasciolitis diagnosed by ERCP3,4. METHODS: Descriptive observational study, in addition to a systematic review in databases such as Pub-Med/MEDLINE, Elsevier, Cochrane and manually through the Internet in journals and public bodies. This work seeks to collect information from different authors regarding its incidence, management and established treatments. RESULTS: Inclusion and exclusion criteria were defined to analyze the characteristics of the selected articles. We present the clinical case of a 47-year-old female patient, with a history of hypertension, type 2 diabetes mellitus and egg allergy who went to the Emergency Department due to a picture characterized by epigastralgia of 3 days of evolution. During endoscopic retrograde cholangio-pancreatography (ERCP), 2 suggestive images of lyte are seen inside that finally result in 2 apparent live parasites.

Colangitis aguda por coledocolitiasis múltiple en un paciente con COVID-19 tratada mediante colangiopancreatografía retrógrada endoscópica

Introducción: La coledocolitiasis es una enfermedad en la cual el conducto biliar común está ocupado por cálculos. La colangiopancreatografía retrógrada endoscópica juega un papel importante en el tratamiento, al conseguir el aclaramiento de la vía biliar principal y restaurar el paso normal de la bilis. Objetivo: Presentar un paciente con la COVID-19 y colangitis aguda por coledocolitiasis múltiple, que se le realizó colangiopancreatografía retrógrada endoscópica. Caso clínico: Mujer de 58 años, antecedentes de cálculos en vesícula biliar, que ingresó en estado de shock séptico por posible colangitis aguda y síntomas respiratorios leves, con prueba positiva para la COVID-19. Por ultrasonido abdominal se le diagnosticó coledocolitiasis y se le realizó colangiopancreatografìa retrógrada endoscópica, se visualizaron múltiples cálculos en colédoco. Se logró el drenaje exitoso de la vía biliar principal, sin complicaciones y evolución favorable. Conclusión: La terapéutica realizada fue una buena opción, en el contexto clínico, de una paciente con la COVID-19 y colangitis aguda por litiasis coledociana.

Introduction: Choledocholithiasis is a disease in which the common bile duct is occupied by stones. Endoscopic retrograde cholangiopancreatography plays an important role in the treatment where the normal passage of bile is restored. Objective: To present a patient with COVID-19 and acute cholangitis due to multiple choledocholithiasis, who underwent endoscopic retrograde cholangiopancreatography. Clinical case: A 58-year-old woman, with a history of gallbladder stones, who was admitted in a state of septic shock due to possible acute cholangitis and mild respiratory symptoms, with a positive test for COVID-19. Choledocholithiasis was diagnosed by abdominal ultrasound and endoscopic retrograde cholangiopancreatography was performed, showing multiple stones in the common bile duct. Successful drainage of the main bile duct was achieved, without complications and favorable evolution. Conclusion: The treatment performed was a good option, in the clinical context, of a patient with COVID-19 and acute cholangitis due to common bile duct stones.

Migración de endoprótesis biliar. Del olvido a su recuperación / Biliary stent migration. From oblivion to recovery

RESUMEN La colangiopancreatografía retrógrada endoscópica (CPRE) es un procedimiento invasivo para el diagnóstico y el tratamiento de la enfermedad biliopancreática. Entre sus complicaciones más infrecuentes se encuentra la migración proximal y distal de la endoprótesis biliar. Las escasas publicaciones sobre tal complicación motivaron la redacción de este artículo. Nuestro objetivo principal fue presentar dos casos clínicos de migración de endoprótesis biliar plástica, su manejo y resolución. Consideramos importante resaltar la necesidad del registro y seguimiento de los pacientes en quienes se colocaron endoprótesis biliares, para la prevención de su olvido más allá del tiempo recomendado de permanencia, y evitar así complicaciones tardías, ya que "la ignorancia no es la felicidad".

ABSTRACT Endoscopic retrograde cholangiopancreatography (ERCP) is an invasive procedure for the diagnosis and treatment of biliary tract and pancreatic duct diseases. Proximal and distal stent migration is a rare complication. The paucity of publications on this issue motivated this article. The main aim of this study was to describe two case reports of migration of biliary plastic stents, how they were managed and solved. We believe it is important to emphasize the need for recording and monitoring patients who have undergone biliary stent placement, to avoid leaving the stent in situ beyond the recommended time, and thus avoid late complications, since "ignorance is not bliss".

Criterios 5-5-2 de canulación biliar y complicaciones post colangiopancreatografía retrógrada endoscópica: Experiencia en un hospital de referencia, Perú

La Sociedad Europea de Endoscopia Gastrointestinal (ESGE) define "canulación difícil" como aquella en la que se realizan más de 5 intentos, se exceden 5 minutos, o se produce canulación inadvertida del conducto pancreático 2 o más veces (criterios 5-5-2), recomendando estos puntos de corte para realizar técnicas avanzadas de canulación y disminuir la tasa de eventos adversos post CPRE. Nuestro objetivo fue evaluar el rendimiento de los criterios 5-5-2 y su asociación con complicaciones post CPRE en un hospital de referencia de Perú. Realizamos un estudio analítico prospectivo de casos y controles en el que se incluyó 120 pacientes a los que se realizó CPRE. El grupo casos estuvo formado por 30 pacientes que cumplieron al menos uno de los criterios 5-5-2 y el grupo controles por 90 pacientes sin ninguno de estos criterios. Se comparó el desarrollo de complicaciones en cada grupo y su asociación con cada uno de los criterios 5-5-2. Las complicaciones presentadas fueron: pancreatitis post CPRE (6,6% en el grupo casos vs 3,3% en el grupo controles), sangrado (3,3% controles vs 0% casos) y perforación (1,1% controles vs 0 % casos); sin observar diferencia estadísticamente significativa. El criterio de 2 o más ingresos inadvertidos al conducto pancreático presentó asociación significativa (OR= 10,29, IC: 1,47-71,98; p= 0,005) con el desarrollo de pancreatitis post CPRE. Los criterios 5 minutos y 5 intentos no se asociaron a complicaciones post CPRE. En conclusión, el más relevante de los criterios 5-5-2 fue el ingreso inadvertido al conducto pancreático en 2 o más ocasiones, mostrando asociación por sí solo con pancreatitis post CPRE. Los criterios tiempo y número de intentos podrían ampliarse con cautela sin aumentar la tasa de complicaciones post CPRE.

The European Society for Gastrointestinal Endoscopy (ESGE) defines "difficult biliary cannulation" by the presence of one or more of the following: more than 5 contacts with the papilla, more than 5 minutes attempting to cannulate, or inadvertent cannulation of the pancreatic duct in 2 or more times (5-5-2 criteria), recommending these cut-off points to perform advanced cannulation techniques in order to reduce the rate of post-ERCP adverse events. Our objective was to evaluate the performance of the 5-5-2 criteria and their association with post-ERCP complications in a reference hospital in Peru. We performed a prospective analytical case-control study and 120 patients who underwent ERCP were enrolled. The case group included 30 patients who met at least one of the 5-5-2 criteria and the control group included 90 patients without any of these criteria. The ERCP- related complications in both groups and their association with each of the 5-5-2 criteria were compared. The ERCP-related complications that occurred were post-ERCP pancreatitis (6.6% in the case group vs. 3.3% in the control group), bleeding (3.3% controls vs. 0% cases) and perforation (1.1% controls vs. 0% cases); no statistically significant differences were observed. The criterion of 2 or more unintended cannulations to the pancreatic duct showed a significant association (OR= 10.29, CI: 1.47-71.98; p= 0.005) with the incidence of post-ERCP pancreatitis. The criteria 5 minutes and 5 attempts were not associated with post-ERCP complications. In conclusion, among 5-5-2 criteria only the unintended cannulation of 2 or more times into the pancreatic duct was associated with an increased risk of post-ERC pancreatitis. The time and number of attempts criteria could be cautiously expanded without increasing the rate of post-ERCP complications.

Pancreatitis aguda recurrente secundaria a disfunción del esfínter de oddi: Reporte de caso

La disfunción del esfínter de Oddi (DEO) es una patología poco frecuente que debe ser considerada en el diagnóstico diferencial de pacientes con episodios de dolor biliar o pancreatitis aguda recurrente y antecedente de colecistectomía. Generalmente son pacientes con múltiples consultas, en los cuales la patología ha afectado considerablemente su calidad de vida. El diagnóstico se sustenta en la clínica, los marcadores serológicos y los medios diagnósticos de soporte, que se solicitan según el componente esfinteriano sospechado. El tratamiento con mayor eficacia es la esfinterotomía endoscópica. El uso de prótesis es aceptado, pero discutido. Se presenta el caso de un paciente masculino en la cuarta década de la vida que consultó por múltiples episodios de pancreatitis aguda recurrente con estudios de etiología que sospecharon disfunción del esfínter de Oddi pancreático y quien fue llevado a manejo endoscópico, con mejoría de su cuadro clínico.

Sphincter of Oddi Dysfunction (SOD) is a rare pathology that should be considered in the differential diagnosis of patients with biliary pain episodes or recurrent acute pancreatitis and a background of cholecystectomy. Generally, these are patients with multiple consultations where this pathology has considerably affected their quality of life. Diagnosis is based on clinical findings, serological markers and supporting diagnostic tests requested according to the suspected sphincteric component. The most effective treatment is endoscopic sphincterotomy. The use of prosthesis is accepted but debated. We present the case of a male patient in his forties who consulted for multiple episodes of recurrent acute pancreatitis with etiology studies suspecting dysfunction of the pancreatic sphincter of Oddi and who was taken to endoscopic management with improvement of his clinical picture.

Colangiografía videolaparoscópica intraoperatoria y colangiopancreatografía retrógrada endoscópica en pacientes con sospecha de colédocolitiasis / Intraoperative Videolaparoscopic Cholangiography and Endoscopic Retrograde Cholangiopancreatography in Patients with Suspected Choledocholithiasis

Introducción: La coledocolitiasis se ha convertido en un problema de salud para el cual existen disímiles opciones de tratamiento. Objetivo: Exponer los resultados obtenidos con la colangiografía videolaparoscópica intraoperatoria y la colangiopancreatografía retrógrada endoscópica en pacientes con sospecha de coledocolitiasis. Métodos: Se realizó un estudio descriptivo retrospectivo en pacientes con sospecha de coledocolitiasis sometidos a colangiografía videolaparoscópica y la colangiopancreatografía endoscópica en el Hospital Militar Clínico Quirúrgico Docente de Camagüey Dr. Octavio de la Concepción y de la Pedraja durante el período de enero de 2015 a diciembre de 2019. El universo lo conformaron los 117 pacientes sometidos a ambos procederes. Se controlaron las variables de sospecha de coledocolitiasis, grupos de edades, sexo, hallazgos imagenológicos, complicaciones e índice de sospecha de coledocolitiasis. Resultados: En la colangiografía videolaparoscópica intraoperatoria fue mayor la posibilidad diagnóstica y menor las complicaciones. El diagnóstico de coledocolitiasis fue mayor en los pacientes sometidos a colangiopancreatografía retrógrada endoscópica, aunque esta no permitió evaluar a pacientes con bajo riesgo. Los pacientes del sexo femenino fueron más frecuentes en ambos grupos y la sospecha de coledocolitiasis se observó en grupo de edades entre 31 y 45 años. Sin embargo, fue normal el hallazgo de las vías biliares en ambos procederes. Conclusiones: Ambos métodos son seguros y útiles en el estudio en pacientes con sospecha de coledocolitiasis, con mayor eficacia diagnóstica para la técnica videolaparoscópica y menos complicaciones. El hallazgo normal de la vía biliar fue el resultado que prevaleció en ambos procederes(AU)

Introduction: Choledocholithiasis has become a health problem for which there are dissimilar treatment options. Objective: To present the results obtained with intraoperative videolaparoscopic cholangiography and endoscopic retrograde cholangiopancreatography in patients with suspected choledocholithiasis. Methods: A retrospective and descriptive study was conducted in patients with suspected choledocholithiasis and submitted to videolaparoscopic cholangiography and endoscopic cholangiopancreatography at Hospital Militar Clínico Quirúrgico Docente Dr. Octavio de la Concepción y de la Pedraja, of Camagüey, during the period from January 2015 to December 2019. The study universe consisted of 117 patients submitted to both procedures. The variables of suspected choledocholithiasis, age groups, sex, imaging findings, complications and index of suspected choledocholithiasis were controlled. Results: Intraoperative videolaparoscopic cholangiography had a higher diagnostic possibility and lower complications. The diagnosis of choledocholithiasis was higher in patients submitted to endoscopic retrograde cholangiopancreatography, although this did not allow the assessment of low-risk patients. Female patients were more frequent in both groups, while suspected choledocholithiasis was observed in patients between 31 and 45 years of age. However, the finding of a normal biliary tract was common to both procedures. Conclusions: Both methods are safe and useful in the study in patients with suspected choledocholithiasis, with greater diagnostic efficacy, as well as fewer complications, for the videolaparoscopic technique. The finding of a normal biliary tract was the prevailing result in both procedures(AU)

Spontaneous Biloma: A Case Report and Literature Review

Bilomas are collections of bile outside the biliary tree. The most frequent etiologies are iatrogenic and trauma. Cases of spontaneous or atraumatic bilomas are rare. Management of bilomas depends on the size and location and may include monitoring only; if the size is < 4 cm, there may be percutaneous or endoscopic intervention. The use of antibiotics depends on the clinical status of the patient. We describe the case of a man who presented with a spontaneous biloma eight years after laparoscopic cholecystectomy and, in addition to signs of choledocholithiasis, a stricture of the common bile duct. In patients with symptoms of biliary pathology, the diagnosis of biloma should be considered even without a history of trauma or recent surgery to initiate appropriate treatment early. Many cases are asymptomatic and resolve spontaneously but occasionally require percutaneous or endoscopic management.

Los biliomas son colecciones de bilis fuera del árbol biliar. Las etiologías más frecuentes son la iatrogenia y el trauma. Los casos de biliomas espontáneos o atraumáticos son poco frecuentes. El manejo de los biliomas depende del tamaño y la localización y puede incluir vigilancia solamente, si el tamaño es < 4 cm, puede haber intervención percutánea o endoscópica. El uso de antibióticos depende del estado clínico del paciente. Presentamos el caso de un hombre que presentó un bilioma espontáneo 8 años después de una colecistectomía laparoscópica que, además de signos de coledocolitiasis, presentaba una estenosis del conducto biliar común. En los pacientes con clínica de patología biliar debe considerarse el diagnóstico de bilioma aun en los casos que no presenten antecedente de trauma o cirugía reciente con el fin de iniciar el tratamiento adecuado tempranamente. Muchos casos son asintomáticos y se resuelven espontáneamente, pero en ocasiones requieren manejo percutáneo o endoscópico.

The efficacy of the combination of radiofrequency ablation and endoscopic metal stent in the treatment of 44 patients with unresectable cholangiocarcinoma / 中华消化杂志

Objective:To explore the efficacy of the combination of radiofrequency ablation(RFA) and endoscopic metal stent in the treatment of patients with unresectable cholangiocarcinoma.Methods:From January 3, 2012 to June 30, 2019, at the Department of Endoscopic of the Third Affiliated Hospital of Naval Medical University, the clinical data of 44 patients with unresectable cholangiocarcinoma who were treated by the combination of RFA and endoscopic metal stent were retrospectively collected, which included age, gender, location of cholangiocarcinoma(hilar cholangiocarcinoma and distal cholangiocarcinoma), etc. Postoperative evaluation was conducted based on the follow-up, including clinical success rate, postoperative complication rate, time of stent patency and overall survival time (OS). The Kaplan-Meier method and log-rank test were used to analyze the difference of OS between patients with hilar cholangiocarcinoma and distal cholangiocarcinoma. Mann-Whitney U test was used for statistical analysis. Results:The age of the 44 patients with cholangiocarcinoma was (70.3±11.6) years old, with 20 males (45.5%). There were 22 patients (50.0%) with hilar cholangiocarcinoma and 22 patients (50.0%) with distal cholangiocarcinoma. The clinical success rate of 44 patients was 93.2%(41/44). A total of 5 patients(11.4%) had postoperative complications, which were all improved by appropriate treatment. The median time of follow-up of the 44 patient was 9.2 months(ranged from 3.1 to 57.6 months), the median time of stent patency was 7.0 months (ranged from 5.8 to 8.2 months). Thirty-two patients (72.7%) died during the follow-up, and the median OS was 10.9 months(ranged from 9.0 to 12.8 months). The median OS of patients with hilar cholangiocarcinoma was 7.8 months(ranged from 4.6 to 11.0 months) and that of patients with distal cholangiocarcinoma was 12.5 months(ranged from 5.7 to 19.4 months), and there was no statistically significant difference( P>0.05). Conclusion:RFA combined with endoscopic metal stent is safe and effective in the treatment of patients with unresectable cholangiocarcinoma.

Analysis of bacterial spectrum and variability of drug resistance of bile in patients with common bile duct stones and biliary tract infections / 中华消化杂志

Objective:To analyze the distribution of pathogenic bacteria in bile culture in patients with common bile duct stones and biliary tract infections, in order to guide clinical optimization of antibiotics application.Methods:From March 30, 2017 to December 31, 2021, at Affiliated Hospital of Qingdao University, 753 patients with common bile duct stones and biliary tract infections and received endoscopic retrograde cholangiopancreatography were selected. Bile samples were obtained for bacterial culture, strain type identification and drug sensitivity test in order to analyze bile pathogenic bacteria distribution, change trend and drug resistance. Chi-square test was used for statistical analysis.Results:From 2017 to 2021, the total positive rate of bile culture in 753 patients with choledocholithiasis complicated with biliary tract infection was 90.17% (679/753). From 2017 to 2021, the positive rates of bile culture were 82.05% (64/78), 88.81% (119/134), 88.03% (125/142), 93.87% (199/212), and 91.98% (172/187), respectively, and the difference was statistically significant ( χ2=10.78, P=0.029). The positive rate of bile culture in 2017 was lower than those in 2020 and 2021, and the differences were statistically significant ( χ2=9.43 and 5.57, P=0.002 and 0.018). There were no significant differences in the positive rates of bile culture among the other years (all P>0.05). A total of 1 033 pathogenic bacteria were detected in the 679 bile specimens with positive bile culture results. Among which the total proportion of Gram-negative bacilli was 57.02% (589/1 033), and from 2017 to 2021 the proportions were 66.38% (77/116), 66.47% (111/167), 59.43% (104/175), 54.75% (173/316), and 47.88% (124/259), respectively. The total proportion of Gram-positive cocci was 41.05% (424/1 033), and from 2017 to 2021 the proportions were 31.90% (37/116), 31.74% (53/167), 38.86% (68/175), 44.30% (140/316), and 48.65% (126/259), respectively. The total proportion of fungus was 1.94% (20/1 033), and from 2017 to 2021 the proportions were 1.72% (2/116), 1.80% (3/167), 1.71% (3/175), 0.95% (3/316), and 3.47% (9/259), respectively. From 2017 to 2021, the proportion of Gram-negative bacilli gradually decreased, while the proportion of Gram-positive cocci gradually increased, and the differences were statistically significant ( χ2=20.14 and 17.91, P<0.001 and =0.001). From 2017 to 2021, the change in the proportion of fungus was not statistically significant ( P>0.05). The main Gram-negative bacilli in the bile culture were Escherichia coli (31.36%, 324/1 033) and Klebsiella pneumoniae (12.68%, 131/1 033); the main Gram-positive cocci were Enterococcus faecalis (14.04%, 145/1 033) and Streptococcus salivarius (4.36%, 45/1 033). From 2017 to 2021, the proportions of Escherichia coli were 39.66% (46/116), 38.92% (65/167), 33.14% (58/175), 28.48% (90/316), and 25.10% (65/259), respectively, with gradual decrease and the difference was statistically significant ( χ2=14.34, P=0.006). From 2017 to 2021 the detection rates of extended-spectrum β-lactamase (ESBL) in Escherichia coli and Klebsiella pneumoniae were 30.43% (14/46), 26.15% (17/65), 29.31% (17/58), 38.89% (35/90), 40.00% (26/65), and 4/15, 20.00% (5/25), 20% (5/25), 24.32% (9/37), and 31.03% (9/29), and there were no significant differences in the detection rates of ESBL between different years (both P>0.05). Conclusions:From 2017 to 2021, the positive rate of bile culture in patients with choledocholithiasis complicated with biliary tract infection showed an overall increasing trend. Gram-negative bacilli were still dominated in bile pathogenic bacteria, while the proportion of Gram-positive cocci remarkably increased, and the bile bacterial spectrum significantly changed. Clinicians should adjust the antibiotic dosing regimens according to the variation of bacterial spectrum and drug resistance.

Influence of effective liver drainage volume on overall survival in patients with malignant hilar biliary obstruction: a multicenter study / 中华消化内镜杂志

Objective:To investigate the influence of liver drainage volume on overall survival time in patients with unresectable malignant hilar bile duct obstruction.Methods:Data of 633 patients with unresectable malignant hilar bile duct obstruction (BismuthⅡ-Ⅳ) who underwent endoscopic stent drainage in 3 endoscopy centers from January 2002 to May 2019 were retrospectively analyzed. Main observation indicators included clinical success rate, stent patency, overall survival, the effective liver drainage volume, and complication incidence.Results:The clinical success rates of patients with liver drainage volume <30%, 30%-50%, and >50% were 56.8% (25/44), 77.3% (201/260) and 84.2% (277/329) respectively. The incidences of early cholangitis were 31.8% (14/44), 18.8% (49/260) and 16.1% (53/329). The median stent patency time was 4.5 (95% CI: 1.8-7.2) months, 5.6 (95% CI: 5.0-6.2) months and 6.6 (95% CI: 5.2-8.0) months. The overall survival time was 2.4 (95% CI: 1.8-3.0) months, 4.0 (95% CI: 3.4-4.6) months and 4.9 (95% CI:4.4-5.4) months, respectively. The clinical success rate ( χ 2=8.28, P=0.012), median stent patency period ( χ 2=18.87, P=0.015) and overall survival time ( χ 2=6.93, P=0.024) of 30%-50% liver drainage volume group were significantly higher than those of <30% group. Further multivariate cox regression analysis showed that the disease type (hepatocellular carcinoma VS hilar cholangiocarcinoma: HR=1.50, 95% CI:1.18-1.91, P=0.001; gallbladder carcinoma VS hilar cholangiocarcinoma: HR=1.45, 95% CI:1.14-1.85, P=0.002; metastatic cholangiocarcinoma VS hilar cholangiocarcinoma: HR=1.48, 95% CI:1.08-2.04, P=0.015), bilirubin level >200 μmol/L ( HR=1.35, 95% CI:1.14-1.60, P<0.001),metal stents ( HR=0.67, 95% CI:0.56-0.79, P<0.001), liver drainage volume (volume 30%-50% VS <30%: HR=0.64, 95% CI: 0.45-0.90, P=0.010; volume>50% VS <30%: HR=0.58, 95% CI:0.41-0.81, P=0.002) and anti-tumor therapy ( HR=0.51, 95% CI:0.42-0.61, P<0.001) were independent predictors for overall survival time of patients with unresectable malignant hilar bile duct obstruction. Conclusion:When endoscopic stent drainage is performed for patients with unresectable malignant hilar bile duct obstruction, at least 30% liver volume is required for better overall survival. In addition, the use of metal stent drainage and anti-tumor therapy may increase survival benefits.

Risk factors for acute cholangitis after endoscopic retrograde cholangiopancreatography and construction of the nomogram / 中华消化内镜杂志

Objective:To investigate the risk factors for acute cholangitis after endoscopic retrograde cholangiopancreatography (ERCP) and to construct its nomogram.Methods:Clinical data of patients who underwent ERCP for common bile duct stones in the First Hospital of Lanzhou University from January 2014 to December 2019 were retrospectively analyzed. A total of 95 patients with acute cholangitis after the operation (the acute cholangitis group) were included and 285 patients without acute cholangitis after the operation (the non-acute cholangitis group) were selected by random sampling at 1∶3 via the software. Logistic regression analysis was used to evaluate the risk factors for acute cholangitis after ERCP. A nomogram model was established to predict the incidence of acute cholangitis after ERCP based on the results of multivariate analysis.Results:Univariate analysis showed that there were significant differences in age, combination with diabetes, levels of alanine aminotransferase, alkaline phosphatase and glucose, roughness in gallbladder wall, bile duct diameter, stenosis in lower bile duct, proportion of patients who underwent endoscopic retrograde biliary drainage and endoscopic nasobiliary drainage between the two groups ( P<0.05). Logistic multivariate regression analysis showed that advanced age ( OR=1.108, 95% CI:1.079-1.138, P<0.001), combination with diabetes ( OR=4.524, 95% CI:1.299-15.758, P=0.018), roughness in gallbladder wall ( OR=2.495, 95% CI:1.106-5.630, P=0.028), increased bile duct diameter ( OR=1.303, 95% CI:1.181-1.437, P<0.001), and stenosis in lower bile duct ( OR=4.192, 95% CI:2.508-7.005, P<0.001) were independent risk factors for acute cholangitis after ERCP. Based on the results of multivariate analysis, the nomogram of acute cholangitis after ERCP was established. The area under the receiver operator characteristic curve was 0.887. Conclusion:Advanced age, combination with diabetes, rough gallbladder wall, increased diameter of bile duct and stenosis in lower bile duct are independent risk factors for acute cholangitis after ERCP. Clinicians can make clinical intervention based on the nomogram of risk factors above to improve the prognosis of patients.