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Table of Contents
April-June 2012
Volume 1 | Issue 1
Page Nos. 1-58
Online since Friday, September 6, 2013
Accessed 16,576 times.
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EDITORIAL
Welcome to your new journal:
Endoscopic ultrasound
p. 1
Marc Giovannini, Siyu Sun
DOI
:10.7178/eus.01.001
PMID
:24949328
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REVIEWS
EUS-guided choledochoduodenostomy for malignant distal biliary obstruction palliation: An article review
p. 2
Everson L.A. Artifon, Manuel Perez-Miranda
DOI
:10.7178/eus.01.002
PMID
:24949329
The EUS-guided biliary drainage is a new tool for the palliation of distal obstructive biliary lesions. The EUS-guided access, which creates a fistulization between the duodenal bulb and distal common biliary duct, is an effective method to relieve jaundice and has low morbidity and mortality, in patients with distal biliary obstruction (pancreatic mass or papillary cβncer). This technique is called choledochoduodenostomy and is presented promptly in this article. The EUS-guided biliary drainage should be made within protocol conditions and done by very experienced endosonographers.
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Endoscopic ultrasound elastography
p. 8
Julio Iglesias-Garcia, Björn Lindkvist, Jose Lariño-Noia, J Enrique Domínguez-Muñoz
DOI
:10.7178/eus.01.003
PMID
:24949330
Endoscopic ultrasound (EUS) is a reference technique for diagnosing and staging several different diseases. EUS-guided biopsies and fine needle aspirations are used to improve diagnostic performance of cases where a definitive diagnosis cannot be obtained through conventional EUS. However, EUS-guided tissue sampling requires experience and is associated with a low but not negligible risk of complications. EUS elastography is a non-invasive method that can be used in combination with conventional EUS and has the potential for improving the diagnostic accuracy and reducing the need for EUS-guided tissue sampling in several situations. Elastography measures tissue stiffness by evaluating changes in the EUS image before and after the application of slight pressure to the target tissue by the ultrasonography probe. Pathologic processes such as cancerization and fibrosis alter tissue elasticity and therefore induce changes in elastographic appearance. Qualitative elastography depicts tissue stiffness using different colors, whereas quantitative elastography renders numerical results expressed as a strain ratio or hue histogram mean. EUS elastography has been proven to differentiate between benign and malignant solid pancreatic masses, as well as between benign and malignant lymph nodes with a high accuracy. Studies have also demonstrated that the early changes of chronic pancreatitis can be distinguished from normal pancreatic tissues under EUS elastography. In this article, we review the technical aspects and current clinical applications of qualitative and quantitative EUS elastography and emphasize the potential additional indications that need to be evaluated in future clinical studies.
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Endoscopic ultrasound-guided fine needle aspiration cytology and biopsy in the evaluation of lymphoma
p. 17
Antonio Z Gimeno-García, Ahmed Elwassief, Sarto C Paquin, Anand V Sahai
DOI
:10.7178/eus.01.004
PMID
:24949331
Accurate diagnosis and subtyping of lymphoma have important prognostic implications and are generally required for treatment planning. Histological assessment, immunophenotyping, and genetic studies are usually necessary. Endoscopic ultrasound guided-fine needle aspiration cytology (EUS-FNAC) is a minimally invasive technique widely used for the evaluation of deep-seated benign and malignant lesions. However, the value of cytological samples in lymphoma diagnosis is still a matter of debate. Endoscopic ultrasound guided-fine needle biopsy (EUS-FNAB) can provide tissue core samples that may help overcome the limitations of cytology. The aim of this review is to summarize the available literature regarding EUS-FNAC and EUS-FNAB for the diagnosis and subtyping of lymphoma. In addition, we discuss its usefulness in the management of primary extra-nodal lymphomas, as well as technical issues that may influence sample quality.
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Transrectal ultrasound - Techniques and outcomes in the management of intestinal endometriosis
p. 23
Lucio G.B Rossini, Paulo A.A.G Ribeiro, Francisco C.M. Rodrigues, Sheila S Filippi, Rodrigo de R. Zago, Nutianne C Schneider, Luciano Okawa, Wilmar A Klug
DOI
:10.7178/eus.01.005
PMID
:24949332
The widespread use of endoscopic ultrasound has facilitated the evaluation of subepithelial and surrounding lesions of the gastrointestinal tract. Deep pelvic endometriosis, with or without infiltration of the intestinal wall, is a frequent disease that can be observed in women in their fertile age. Patients of this disease may present nonspecific signs and symptoms or be completely asymptomatic. Laparoscopic surgical resection of endometriotic lesions is the treatment of choice in symptomatic patients. An accurate preoperative evaluation is indispensable for therapeutic decisions mainly in the suspicion of intestinal wall and/or urinary tract infiltration, and also in cases where we need to establish histological diagnosis or to rule out malignant disease. Diagnostic tools, including transrectal ultrasound, magnetic resonance image, transvaginal ultrasound, barium enema, and colonoscopy, play significant roles in determining the presence, depth, histology, and other relevant data about the extension of the disease. Diagnostic algorithm depends on the clinical presentation, the expertise of the medical team, and the technology available at each institution. This article reviews and discusses relevant clinical points in endometriosis, including techniques and outcomes of the study of the disease through transrectal ultrasound and fine-needle aspiration.
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Endoscopic ultrasound-guided double stenting for biliary and duodenal obstruction
p. 36
Takao Itoi, Fumihide Itokawa, Atsushi Sofuni, Toshio Kurihara, Kentaro Ishii, Shujiro Tsuji, Nobuhito Ikeuchi, Junko Umeda, Rena Tanaka, Ryosuke Tonozuka, Fuminori Moriyasu
DOI
:10.7178/eus.01.006
PMID
:24949333
Endoscopic biliary stenting for malignant biliary obstruction is currently the gold standard for biliary drainage. Biliary cancer treatment is crucial. Cases of gastric outlet obstruction that includes the duodenum because of cancer invasion and biliary obstruction are seldom observed. The required treatment for such cases is simple biliary stenting and a different treatment for duodenal obstruction. Hence, double stenting for bile duct and duodenal obstruction has drawn attention. In the present review, we state different treatment strategies for malignant duodenal obstruction and then describe double stenting in biliary obstruction that also includes non-biliary cancer malignant lesions and duodenal obstruction.
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ORIGINAL ARTICLES
Pilot trial of endoscopic ultrasound-guided interstitial chemoradiation of UICC-T4 pancreatic cancer
p. 41
Siyu Sun, Nan Ge, Sheng Wang, Xiang Liu, Guoxin Wang, Jintao Guo
DOI
:10.7178/eus.01.007
PMID
:24949334
Background and aims
: Both interstitial brachytherapy and interstitial chemotherapy are effective in improving local control in patients with local UICC-T4 pancreatic cancer. In this study, we report the results of endoscopic ultrasound (EUS)-guided interstitial chemoradiation (EUS-ICR) in patients with advanced pancreatic cancer, with respect to tumor response, clinical response, safety, and complications.
Patients and methods
: A total of 8 patients (3 men, 5 women; median age of 69) with T4 pancreatic adenocarcinoma were the subjects of this study. A mean of 18 radioactive seeds and 36 intratumoral implants for sustained delivery of 5-fluorouracil in each patient were implanted into the tumors using EUS-guided needle puncture. The mean total implanted radioactive activity was 13.68 mCi, the mean total dose of intratumoral 5-fluorouracil was 3.6 g, and the mean volume of implants was 28 cm3. The conditions of the patients were followed-up by examination and imaging tests every two months. Clinical endpoints included the Karnofsky performance status, pain response, tumor response (assessed by computed tomography and/or EUS), and survival.
Results
: During a median follow-up period of 8.3 months, the objective tumor response was classified as 'partial' in 1 of 8 patients (with a median duration of partial response of 3 months), 'minimal' in 2 patients, and indicative of 'stable disease, in 3 of 8 patients. Clinical benefit was shown in 4 of 8 patients, which was mostly due to pain reduction, and lasted for 3.5 months. No local complications or hematologic toxicity occurred.
Conclusions
: EUS-ICR had a moderate local anti-tumor effect, showed some clinical benefits in 4 of the 8 patients, and was well tolerated by all the patients in this study.
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Ethanol lavage of 14 mucinous cysts of the pancreas: A retrospective study in two tertiary centers
p. 48
Fabrice Caillol, Laurent Poincloux, Erwan Bories, Emanuelle Cruzille, Christian Pesenti, Claude Darcha, Flora Poizat, Genevieve Monges, Jean-Luc Raoul, Gilles Bommelaer, Marc Giovannini
DOI
:10.7178/eus.01.008
PMID
:24949335
Background
: Mucinous cysts are lesions with malignant potential. Their management is stil difficult. Ethanol lavage under EUS can be used and could be a good alternative treatment. We report a bi-center experience of ethanol lavage in mucinous cysts of the pancreas.
Patients and methods
: A total of 13 patients in 2 tertiary centers (7 men, 6 women, mean age=68.5 years) underwent ethanol lavage for mucinous cysts under endoscopic ultrasound (EUS) from 2001 to 2010. One of the patients had 2 cysts treated during the same procedure. One patient underwent a second procedure of ethanol lavage. Mucinous cyst diagnosis required: (1) EUS showing cystic lesion without nodule and without communication with pancreatic branch duct. Six cysts were located in the isthmus of the pancreas, 3 in the head, 3 in the body, and 2 in the tail. The mean size was 24 mm (11-50); and (2) Intra-cystic ACE level >400 UI/l and/or histologic proof. Diagnosis of mucinous cyst was obtained using ACE levels in 5 cases, histology in 8 cases, and both in 1 case.
Results
: No complication was reported. Complete responses were observed in 11 cases (85%), with no responses in 2 cases (15%). Mean follow-up was 26 months (4-118 months). Contact was lost with 1 patient. No recurrence was noticed in patients with complete responses.
Conclusion
: This study confirms the feasibility and effectiveness of a loco-regional treatment under EUS for pancreatic cysts. The good ratio of response is probably explained by the lack of septa and the small size of the cysts. The follow-up is still short and needs to be increased. Nethertheless loco-regional treatment of pancreatic cysts lesions under EUS should form a part of the management of pancreatic lesions.
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CASE REPORTS
Rupture of a duodenal stromal tumor during EUS-FNA: A case report
p. 53
Wen Liu, Siyu Sun, Nan Ge, Sheng Wang, Xiang Liu, Guoxin Wang, Jintao Guo
DOI
:10.7178/eus.01.009
PMID
:24949336
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Cardiac rhabdomyosarcoma mimicking a mediastinal tumor and the role of endoscopic ultrasonography
p. 56
Christian Pesenti, Erwan Bories, Fabrice Caillol, V Moutardier, Geneviève Monges, Marc Giovannini
DOI
:10.7178/eus.01.010
PMID
:24949337
We report a case of cardiac rhabdomyosarcoma, with initial clinical features of atrial rhythmic dysfunction which was concluded as a mediastinal tumor by computed tomography (CT) scan. Endoscopic ultrasonography (EUS) and EUS - FNA (fine needle aspiration) were initially conducted to diagnose the isolated mediastinal mass. In this case, EUS re-assessed the previous diagnosis as a cardiac tumor, and the patient eventually achieved a 17- month survival rate after chemotherapy. In this paper, EUS findings obtained in our case are described and a review of literatures is briefly discussed. We also describe the advantages and limitations of this technique compared with other image diagnosis alternatives.
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Online since 20 August, 2013