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Table of Contents
September-October 2017
Volume 6 | Issue 5
Page Nos. 281-354
Online since Monday, October 16, 2017
Accessed 38,970 times.
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EDITORIAL
Endoscopic ultrasound-guided pancreatic duct drainage: Ready for the prime time?
p. 281
Marc Giovannini
DOI
:10.4103/eus.eus_86_17
PMID
:29063870
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CONSENSUS
A multi-institutional consensus on how to perform endoscopic ultrasound-guided peri-pancreatic fluid collection drainage and endoscopic necrosectomy
p. 285
Jintao Guo, Adrian Saftoiu, Peter Vilmann, Pietro Fusaroli, Marc Giovannini, Girish Mishra, Surinder S Rana, Sammy Ho, Jan-Werner Poley, Tiing Leong Ang, Evangelos Kalaitzakis, Ali A Siddiqui, Jose G De La Mora-Levy, Sundeep Lakhtakia, Manoop S Bhutani, Malay Sharma, Shuntaro Mukai, Pramod Kumar Garg, Linda S Lee, Juan J Vila, Everson Artifon, Douglas G Adler, Siyu Sun
DOI
:10.4103/eus.eus_85_17
PMID
:29063871
There is a lack of consensus on how endoscopic ultrasound (EUS)-guided pseudocyst drainage and endoscopic necrosectomy should be performed. This survey was carried out amongst members of the EUS Journal Editorial Board to describe their practices in performing this procedure. This was a worldwide multi-institutional survey amongst members of the EUS Journal Editorial Board in May 2017. The responses to a 22-question survey with respect to the practice of EUS-guided pseudocyst drainage and endoscopic necrosectomy were obtained. Twenty-two endoscopists responded to the questionnaire as follows: 72.7% (16/22) were of the opinion that lumen-apposing metal stents (LAMS) should be the standard of care for the creation of an endoscopic cystenterostomy in patients with pancreatic walled-off necrosis (WON); 95.5% (21/22) recommended large diameter (d=15 mm) LAMS for drainage in patients with WON; 54.5% (12/22) would not dilate LAMS after placement into the WOPN; 86.4% (19/22) would not perform endoscopic necrosectomy during the same procedure as the creation of the cystenterostomy; 45.5% (10/22) recommend that agents, such as diluted hydrogen peroxide, should be used to lavage the peri-pancreatic fluid collection (PFC) cavity in patients with WON; and 45.5% (10/22) considered a naso-cystic or other tube to be necessary for lavage of WON after initial drainage. The mean optimal interval recommended for endoscopic necrosectomy procedures after EUS-guided drainage was 6.23 days. The mean optimal interval recommended for repeat imaging in patients undergoing endoscopic necrosectomy was 12.32 days. The mean time recommended for LAMS removal was 4.59 weeks. This is the first worldwide survey on the practice of EUS-guided pseudocyst drainage and endoscopic necrosectomy. There were wide variations in practice and randomized studies are urgently needed to establish the best approach for management of this condition. There is also a pressing need to establish a best practice consensus.
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REVIEW ARTICLES
Endobronchial ultrasonography using a guide sheath technique for diagnosis of peripheral pulmonary lesions
p. 292
Lei Zhang, Hongxu Wu, Guiqi Wang
DOI
:10.4103/eus.eus_48_17
PMID
:29063872
Endobronchial ultrasonography using a guide sheath (EBUS-GS) is a novel method used for collecting peripheral pulmonary lesion (PPL) samples. EBUS-GS is performed by introducing a guide sheath-covered miniprobe into the target bronchus and then withdrawing the miniprobe after lesion detection, leaving the guide sheath
in situ
as a working channel for obtaining lesion samples. EBUS-GS can improve PPL diagnosis rates and be used for obtaining specimens for molecular analysis. In this review, we discuss the clinical applications of EBUS-GS, the factors that affect its diagnostic sensitivity, and potential complications. We also compare EBUS-GS with other available diagnostic techniques and discuss the strengths and limitations of this method.
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Future role of endoscopic ultrasound in personalized management of pancreatic cancer
p. 300
Marie Ooi, An Phan, Nam Q Nguyen
DOI
:10.4103/eus.eus_84_17
PMID
:29063873
Pancreatic ductal adenocarcinoma (PDAC) is aggressive and lethal with the majority of cases presenting with advanced unresectable disease due to delayed diagnosis. Despite improvement in surgery, chemotherapies, and intensive care medicine, the outcome of PDAC remains poor, which may relate to the tumor biology. Recent data suggest that PDAC is a “systemic cancer” with complex molecular or genomics derangement with marked heterogeneity. The ability to characterize the PDAC better by detailed evaluation of tissue biomarkers or genomics allows for improved prediction of prognosis and stratification of treatment, a concept known as “personalized cancer therapy.” Using tissue from resected PDAC specimens has several weaknesses and is only possible in 20% of patients with PDAC. Endoscopic ultrasound (EUS)-guided biopsy overcomes these weaknesses, and with recent advancements in needle technology, tissue can be obtained for personalized cancer therapy for all patients with PDAC. This review aims to outline our current understanding of the molecular biology of PDAC specifically focusing on how EUS-guided biopsy may play a fundamental role in tissue acquisition, allowing for assessment and stratify therapy according to the individual cancer biology as we move toward the era of precision medicine.
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ORIGINAL ARTICLES
The role of EUS and EUS-guided FNA in the management of subepithelial lesions of the esophagus: A large, single-center experience
p. 308
Birol Baysal, Omar A Masri, Mohamad A Eloubeidi, Hakan Senturk
DOI
:10.4103/2303-9027.155772
PMID
:26365993
Background:
Referral for endosonographic evaluation of subepithelial lesions seen in the gastrointestinal (GI) tract is fairly common. Although rarely studied separately in details, esophageal lesions have some unique differences from other GI sites and might deserve some special considerations regarding follow-up and management.
Materials and Methods:
All cases referred for endoscopic ultrasound (EUS) evaluation of subepithelial esophageal lesions at Bezmialem University Hospital, a tertiary center in Istanbul, Turkey were retrospectively reviewed. Data were collected for patient and lesion characteristics as well as for pathology results and follow-up if available. Lesions were subcategorized according to their size, location, and final diagnosis.
Results:
A total of 164 EUS examinations were identified. In 22.5% of cases, the lesion could not be identified by EUS. Of the remaining cases, 57.6% had a lesion larger than 1 cm in size. Extramural compression was the diagnosis in 12% and leiomyoma in around 60%. Thirteen patients had follow-up examinations with only two showing an increase in size after 12 months. Sixty-five EUS-guided fine needle aspirations (EUS-guided FNAs) were performed, with around 50% having nondiagnostic samples and 94% of the remaining samples confirming the presumptive diagnosis.
Conclusions:
The majority of subepithelial lesions in the esophagus are benign with extremely low malignancy potential. EUS examinations performed for lesions smaller than 2 cm as well as FNAs taken from lesions smaller than 3 cm might have minimal impact on their ultimate management and outcome. More than one FNA pass should be attempted in order to improve the yield.
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Diagnostic yield of EBUS-TBNA for lymphoma and review of the literature
p. 317
Onur Fevzi Erer, Serhat Erol, Ceyda Anar, Zekiye Aydoğdu, Serir Aktoğu Özkan
DOI
:10.4103/2303-9027.180762
PMID
:27121291
Aim:
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA), which enables cytological examination of mediastinal lymph node (LN) aspiration samples, is a safe and minimally invasive method for diagnosis and staging of lung cancer and diagnosis of diseases affecting mediastinal LNs. In this study, we investigated the yield of EBUS-TBNA for diagnosis of lymphoma and reviewed the literature since the British Thoracic Society (BTS) guidelines were published.
Materials and Methods:
We retrospectively evaluated our database for patients who underwent EBUS between March 2011 and December 2014. One hundred eighty-nine patients with isolated mediastinal lymphadenopathy were included in the study. Patients with other causes of lymphadenopathy, such as lung cancer or extrathoracic malignancy, and those with pulmonary lesions accompanying mediastinal lymphadenopathy were excluded from the study. Patients with final diagnosed lymphoma were included in the study on the basis of a history of lymphoma or newly evaluated mediastinal lymphadenopathy. The sensitivity and negative predictive value (NPV) of EBUS-TBNA were calculated.
Results:
There were 13 patients with the final diagnosis of lymphoma. Eleven of them were new diagnoses and 2 patients were known chronic lymphocytic leukemia (CLL), and underwent EBUS-TBNA for determination of recurrence. Twelve EBUS-TBNA procedures were performed for suspected new cases. Three (25%) were diagnostic, 2 (16.7%) were suspicious for lymphoma and underwent further interventions for definite diagnosis, and 7 (58.3%) were false negative. All 3 patients diagnosed with EBUS-TBNA were non-Hodgkin lymphoma (NHL). None of the Hodgkin lymphoma (HL) cases could be diagnosed with EBUS-TBNA. The overall diagnostic sensitivity and NPV of EBUS-TBNA in detecting lymphoma was 65% and 96.1%, respectively. For the newly diagnosed lymphoma cases, EBUS-TBNA had a sensitivity of 61.1%.
Conclusion:
In conclusion, we believe that since the publication of the BTS guidelines, the value of EBUS-TBNA in the diagnosis of lymphoma still remains controversial. EBUS-TBNA can be the first diagnostic modality in diagnosis of recurrent lymphomas. However, for suspected new cases, especially for HL, the diagnostic yield of EBUS-TBNA is low and negative results do not exclude lymphoma. Further interventions such as mediastinoscopy should be performed for high-suspicion patients.
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Conversion to endoscopic ultrasound-guided biliary drainage by temporary nasobiliary drainage placement in patients with prior biliary stenting
p. 323
Yousuke Nakai, Hiroyuki Isayama, Natsuyo Yamamoto, Saburo Matsubara, Yukiko Ito, Naoki Sasahira, Gyotane Umefune, Naminatsu Takahara, Tsuyoshi Hamada, Dai Mohri, Hirofumi Kogure, Minoru Tada, Kazuhiko Koike
DOI
:10.4103/2303-9027.199763
PMID
:28663533
Background and Objectives:
Endoscopic ultrasound-guided biliary drainage (EUS-BD), first reported as an alternative to percutaneous transhepatic BD in failed endoscopic retrograde cholangiography, is sometimes performed as reintervention for transpapillary stent dysfunction such as in patients with new onset gastric outlet obstruction, but direct conversion to EUS-BD can potentially have a risk of leakage of infected bile. The aim of this study is to evaluate the safety and efficacy of conversion to EUS-BD using a temporary endoscopic nasobiliary drainage (ENBD) tube placement as a reintervention for prior BD.
Patients and Methods:
Sixteen patients with prior BD for malignant biliary obstruction undergoing conversion to EUS-BD using a temporary ENBD tube placement were studied. Technical and clinical success rate and adverse events were evaluated.
Results:
The major reason for conversion to EUS-BD was recurrent cholangitis due to duodenobiliary reflux (
n
= 13). In 14 patients with an indwelling covered metal or plastic stent, the stents were removed before temporary ENBD placement. After a median duration of 6 days, subsequent conversion to EUS-BD using a covered metal stent was performed, which was technically and clinically successful in all 16 patients (14 hepaticogastrostomy and 2 choledochoduodenostomy). Adverse events were observed in 3 patients (19%): one bleeding, one cholecystitis, and one cholangitis. No bile leak, peritonitis, or sepsis was observed.
Conclusions:
Conversion to EUS-BD using temporary ENBD tube placement in patients with prior BD was technically feasible and relatively safe without infectious complications related to bile leakage.
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Use of partially covered and uncovered metallic prosthesis for endoscopic ultrasound-guided hepaticogastrostomy: Results of a retrospective monocentric study
p. 329
Chiara De Cassan, Erwan Bories, Christian Pesenti, Fabrice Caillol, Sébastien Godat, Jean Philippe Ratone, Jean Robert Delpero, Jacques Ewald, Marc Giovannini
DOI
:10.4103/2303-9027.209869
PMID
:28685745
Background and Objectives:
Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) represents an option to treat obstructive jaundice when endoscopic retrograde cholangiopancreatography (ERCP) fails. The success rate of this procedure has been shown to be very high. Up to now, plastic and self-expandable metallic stents (SEMSs) have been employed, each of them presenting some limitations. The aims of this study were to evaluate the technical and functional success rates of EUS-HGS using a dedicated biliary SEMS with a half-covered part (Giobor
®
stent).
Methods:
We retrospectively reviewed data of patients, who underwent EUS-HGS at our center, with at least 6 months of follow-up. Demographic, clinical, and laboratory data were extracted from the patient's charts and electronic records. Technical success rate was defined as the successful passage of the Giobor stent across the stomach, along with the flow of contrast medium and/or bile through the stent. Functional success rate was considered achieved when the decrease of bilirubin value of at least 25% within the 1
st
week was obtained. The rate of early and late complications was assessed.
Results:
A total of 41 patients were included (21F/20M, [mean age 66, range 45–85]). Technical success rate was obtained in 37 (90.2%) of patients. Functional success rate, analyzable in 29 patients, occurred in 65%. Between the 37 patients in whom HGS was technically feasible, 13 patients (31.7%) presented an early complication, mostly infective. At 6-month follow-up, 10/37 patients (27.0%) required a new biliary drainage (BD) and 11/37 (29.7%) died because of their disease.
Conclusions:
EUS-HGS using Giobor
®
stent is technically feasible, clinical effective, safe, and may be an alternative to percutaneous transhepatic BD in case of ERCP failure for biliary decompression.
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CASE REPORT
Endoscopic ultrasonography and rectal duplication cyst in an adult
p. 336
Fernando M Castro-Poças, Tarcísio P Araújo, Jorge D Silva, Vicente S Gonçalves
DOI
:10.4103/2303-9027.190918
PMID
:28663525
Rectal duplication cysts account for 4% of all duplications of the alimentary tract. Presentation in adulthood is rare. An asymptomatic 54-year-old man was referred for endoscopic colorectal cancer screening. A bulging mass covered by normal mucosa was identified in the rectum. Endoscopic ultrasonography (EUS) with fine needle aspiration (FNA) was made for a diagnosis of rectal duplication cyst. The patient was operated and the diagnosis was confirmed. The diagnosis of the rectal duplication cyst is a challenge. EUS may have a singular role when identifying a muscular layer, because this is the only absolutely necessary criterion for the diagnosis. FNA by EUS may eventually identify colorectal and/or heterotypic epithelium that are the other diagnostic criteria of the duplication cyst.
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IMAGES AND VIDEOS
A rare case of pancreatic metastasis of angiosarcoma: Diagnosed by endoscopic ultrasound-guided fine-needle aspiration and biopsy
p. 340
Manoop S Bhutani, Ayush Arora, Uma Kundu, Dipen Maru
DOI
:10.4103/2303-9027.216719
PMID
:29063874
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A case of a giant cyst in the left lobe of the liver successfully treated with endoscopic ultrasound-guided fine needle aspiration (with video)
p. 343
Gan Shi, Shengbin Sun, Hui Li, Yan Fan, Yusheng Liao, Dan Zheng, Manling Huang, Heng Zhang
DOI
:10.4103/2303-9027.210609
PMID
:28707654
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Gastric Kaposi's sarcoma simulating gastric lymphoma during endoscopic ultrasound examination
p. 347
Hussein Hassan Okasha, Ahmed Galal, Nahed Baddour
DOI
:10.4103/eus.eus_10_17
PMID
:28685740
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The value of endoscopic ultrasound-fine needle aspiration in the suspicion of pancreatic hydatid cyst in endemic areas with negative serology (with video)
p. 350
César Vivian Lopes, Tiago L Dedavid e Silva, Nélson H.V Coelho, Gabriel O Santos
DOI
:10.4103/eus.eus_12_17
PMID
:28685742
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LETTER TO EDITOR
Blind areas of cardiac imaging during transesophageal echocardiogram/endoscopic ultrasound
p. 352
Malay Sharma, Amit Pathak, Abid Shoukat, Chittapuram Srinivasan Rameshbabu
DOI
:10.4103/2303-9027.193585
PMID
:27824023
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