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ESTUDIOS


07 enero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Placement of 125I seed strands and stents for a type IV Klatskin tumor

Wen Zhang, Zheng-Qiang Yang, Hai-Bin Shi, Shen Liu, Wei-Zhong Zhou and Lin-Bo Zhao.

Herein, we report a new technique that consists of placing two 125I seed strands and two stents in the right and left intrahepatic bile ducts for the treatment of hilar cholangiocarcinoma. A 75-year-old man presented with jaundice and was diagnosed with Bismuth type IV Klatskin tumor. Abdominal computed tomography (CT) showed intrahepatic and extrahepatic bile duct dilatation and a soft tissue mass in the hepatic hilum. Because curative surgical resection was not possible, we placed 125I seed strands and stents in the right and left intrahepatic bile ducts. Three months later, abdominal CT showed less intrahepatic and extrahepatic bile duct dilatation than before the procedure. This technique was feasible and could be considered for the treatment of patients with Bismuth type IV tumors.

21 enero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Gastrotracheal fistula: Treatment with a covered elf-expanding Y-shaped metallic stent

Fei Wang, Hong Yu, Ming-Hui Zhu, Quan-Peng Li, Xian-Xiu Ge, Jun-Jie Nie and Lin Miao.

A 67-year-old man had a sev-ere cough and pulmonary infection for 1 wk before seeking evaluation at our hospital. He had undergone esophagectomy with gastric pull-up and radiotherapy for esophageal cancer 3 years previously. After admission to our hospital, gastroscopy and bronchoscopy revealed a fistulous communication between the posterior tracheal wall near the carina and the upper residual stomach. We measured the diameter of the trachea and bronchus and determined the site and size of the fistula using multislice computed tomography and gastroscopy. A covered self-expanding Y-shaped metallic stent was implanted into the trachea and bronchus. Subsequently, the fistula was closed completely. The patient tolerated the stent well and had good palliation of his symptoms.

21 enero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Preoperative trans-jugular porto-systemic shunt for oncological gastric surgery in a cirrhotic patient

Andrea Liverani, Luigi Solinas, Tatiana Di Cesare, Luca Velari, Tiziano Neri, Francesco Cilurso, Francesco Favi and Giancarlo Bizzarri.

Abdominal surgery in cirrhotic patients with portal hypertension is associated with high incidence of disease and mortality. In these patients, oncological gastric procedures with lymph-nodes dissection show much higher complication rates than in normotensive portal vein patients. Thus, normalization of portal vein pressure may be a favorable determinant factor to reduce complications. We report a case of a patient with hepatitis C virus-related hepatic cirrhosis, esophageal varices, portal hypertension and gastric cancer. We demonstrated the efficacy of a preoperative trans-jugular porto-systemic shunt to perform oncological radical resection more safely. We retained preoperative the trans-jugular porto-systemic shunt in the patients with elevated portal pressure and gastric cancer to perform a gastrectomy more safely and to decrease morbidity and mortality of these cases.

21 enero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Should temporary extracorporeal continuous portal diversion replace meso/porta-caval shunts in “small-for-size” syndrome in porcine hepatectomy?

Da-Dong Wang, Yong Xu, Zi-Man Zhu, Xiang-Long Tan, Yu-Liang Tu, Ming-Ming Han and Jing-Wang Tan.

AIM: To investigate the feasibility of temporary extracorporeal continuous porta-caval diversion (ECPD) to relieve portal hyperperfusion in “small-for-size” syndrome following massive hepatectomy in pigs.

28 enero 2014

WORLD JOURNAL OF GASTROENTEROLOGY. Preventing post-endoscopic retrograde cholangiopancreatography pancreatitis: What can be done?

Goran Hauser, Marko Milosevic, Davor Stimac, Enver Zerem, Predrag Jovanović and Ivana Blazevic.

Post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP) is the most common complication of endoscopic retrograde cholangiopancreatography. The incidence of post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis varies substantially and is reported around 1%-10%, although there are some reports with an incidence of around 30%. Usually, PEP is a mild or moderate pancreatitis, but in some instances it can be severe and fatal. Generally, it is defined as the onset of new pancreatic-type abdominal pain severe enough to require hospital admission or prolonged hospital stay with levels of serum amylase two to three times greater than normal, occurring 24 h after ERCP. Several methods have been adopted for preventing pancreatitis, such as pharmacological or endoscopic approaches. Regarding medical prevention, only non-steroidal anti-inflammatory drugs, namely diclofenac sodium and indomethacin, are recommended, but there are some other drugs which have some potential benefits in reducing the incidence of post-ERCP pancreatitis. Endoscopic preventive measures include cannulation (wire guided) and pancreatic stenting, while the adoption of the early pre-cut technique is still arguable. This review will attempt to present and discuss different ways of preventing post-ERCP pancreatitis.

28 enero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Pulmonary embolism after arterial chemoembolization for hepatocellular carcinoma: An autopsy case report

Keiichi Hatamaru, Shunjiro Azuma, Takuji Akamatsu, Takeshi Seta, Shunji Urai, Yoshito Uenoyama, Yukitaka Yamashita and Kazuo Ono.

We report an extremely rare case of pulmonary lipiodol embolism with acute respiratory distress syndrome (ARDS) after transcatheter arterial chemoembolization (TACE) for hepatocellular carcinoma (HCC). A 77-year-old man who was diagnosed with a huge HCC was admitted for TACE. Immediately after the procedure, this patient experienced severe dyspnea. We suspected that his symptoms were associated with a pulmonary lipiodol embolism after TACE, and we began intensive treatment. However, his condition did not improve, and he died on the following day. A subsequent autopsy revealed that the cause of death was ARDS due to pulmonary lipiodol embolism. No cases have been previously reported for which an autopsy was performed to explain the most probable mechanism of pulmonary lipiodol embolism; thus, ours is the first report for such a rare case.

28 enero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Partial embolization as re-treatment of hypersplenism after unsuccessful splenic artery ligation

Zheng-Ju Xu, Lian-Qiu Zheng and Xing-Nan Pan.

Ligation of splenic artery (LSA) is used for the treatment of liver cirrhosis with hypersplenism. However, hypersplenism is not significantly improved following LSA treatment in some cases, and there are few reports of retreatment of hypersplenism after LSA. We report the case of a 47-year-old man with liver cirrhosis and hypersplenism who underwent LSA treatment, but did not significantly improve. Laboratory tests revealed severe leukocytopenia and thrombocytopenia. Celiac computed tomography arteriogram and digital subtraction angiography revealed two compensatory arteries connected to the hilar splenic artery from the left gastro-epiploic artery and from the dorsal pancreatic artery. Partial splenic embolization (PSE) was performed through the compensatory arteries. As a result, the patient achieved partial splenic ischemic infarction, and white blood cell and platelet counts rose and remained in the normal range. PSE is an effective therapeutic modality for the retreatment of hypersplenism when other modalities have failed.

14 febrero 2015

WORLD JOURNAL OF GASTROENTEROLOGY. Successful treatment of complex cholangiolithiasis following orthotopic liver transplantation with interventional radiology

Chuan-Guo Zhou, Bao-Jie Wei, Kun Gao, Ding-Ke Dai and Ren-You Zhai.

Bile duct stones are a serious and the third most common complication of the biliary system that can occur following liver transplantation. The incidence rate of bile duct stones after liver transplantation is 1.8%-18%. The management of biliary stones is usually performed with endoscopic techniques; however, the technique may prove to be challenging in the treatment of the intrahepatic bile duct stones. We herein report a case of a 40-year-old man with rare, complex bile duct stones that were successfully eliminated with percutaneous interventional techniques. The complex bile duct stones were defined as a large number of bile stones filling the intra- and extrahepatic bile tracts, resulting in a cast formation within the biliary tree. Common complications such as hemobilia and acute pancreatitis were not present during the perioperative period. The follow-up period was 20 mo long. During the postoperative period, the patient maintained normal temperature, and normal total bilirubin and direct bilirubin levels. The patient is now living a high quality life. This case report highlights the safety and efficacy of the percutaneous interventional approach in the removal of complex bile duct stones following liver transplantation.

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