|Year : 2017 | Volume
| Issue : 2 | Page : 75-82
Clinical use of endoscopic ultrasound-guided fine-needle aspiration: Guidelines and recommendations from Chinese Society of Digestive Endoscopy
Nan Ge1, Shutian Zhang2, Zhendong Jin3, Siyu Sun1, Aiming Yang4, Bangmao Wang5, Guiqi Wang6, Guoqiang Xu7, Jianyu Hao8, Liang Zhong9, Ning Zhong10, Peng Li2, Qi Zhu11, Weidong Nian12, Wen Li13, Xiaofeng Zhang14, Xiaoping Zhou15, Xiujiang Yang16, Yi Cui17, Zhen Ding18
1 Department of Endoscopy, Shengjing Hospital, Medical University, Shenyang, Liaoning Province, China
2 Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
3 Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai, China
4 Department of Gastroenterology, Peking Union Medical College Hospital, Beijing, China
5 Department of Gastroenterology and Hepatology, Tianjin Medical University General Hospital, Tianjin, China
6 Department of Endoscopy, Chinese Academy of Medical Sciences, Beijing, China
7 Department of Gastroenterology, The First Affiliated Hospital of Zhejiang University, Hangzhou, Zhejiang Province, China
8 Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
9 Department of Gastroenterology, Huashan Hospital, Fudan University, Shanghai, China
10 Department of Gastroenterology, Qilu Hospital, Shandong University, Jinan, Shandong Province, China
11 Department of Endoscopy, Shanghai Jiao Tong University, Shanghai, China
12 Department of General Surgery, Peking University Hospital, Beijing, China
13 Department of Gastroenterology, Tianjin Nankai Hospital, Tianjin, China
14 Department of Gastroenterology, The First People's Hospital of Hangzhou, Nanjing Medical University, Hangzhou, Zhejiang Province, China
15 Department of Gastroenterology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, Jiangsu Province, China
16 Department of Endoscopy, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, China
17 Department of Gastroenterology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, Guangdong Province, China
18 Department of Gastroenterology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
|Date of Submission||06-Mar-2017|
|Date of Acceptance||15-Mar-2017|
|Date of Web Publication||20-Apr-2017|
Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, Beijing
Department of Endoscopy, Shengjing Hospital, China Medical University, Shenyang, Liaoning Province
Department of Gastroenterology, Changhai Hospital, Second Military Medical University, Shanghai
Source of Support: None, Conflict of Interest: None
|How to cite this article:|
Ge N, Zhang S, Jin Z, Sun S, Yang A, Wang B, Wang G, Xu G, Hao J, Zhong L, Zhong N, Li P, Zhu Q, Nian W, Li W, Zhang X, Zhou X, Yang X, Cui Y, Ding Z. Clinical use of endoscopic ultrasound-guided fine-needle aspiration: Guidelines and recommendations from Chinese Society of Digestive Endoscopy. Endosc Ultrasound 2017;6:75-82
|How to cite this URL:|
Ge N, Zhang S, Jin Z, Sun S, Yang A, Wang B, Wang G, Xu G, Hao J, Zhong L, Zhong N, Li P, Zhu Q, Nian W, Li W, Zhang X, Zhou X, Yang X, Cui Y, Ding Z. Clinical use of endoscopic ultrasound-guided fine-needle aspiration: Guidelines and recommendations from Chinese Society of Digestive Endoscopy. Endosc Ultrasound [serial online] 2017 [cited 2019 Nov 19];6:75-82. Available from: http://www.eusjournal.com/text.asp?2017/6/2/75/204805
Prepared by EUS Academic group of Chinese Society of Digestive Endoscopy
Shutian Zhang, Siyu Sun, Zhendong Jin these authors contributed equally to this work
| Introduction|| |
Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) or EUS fine-needle biopsy (EUS-FNB) is a means of facilitating specimen procurement for microscopic analysis. Diagnostic samplings (cells or tissues) successfully obtained in this manner may greatly impact patient therapeutic management.
The guideline presented herein is based on our current understanding of the field. Various aspects of EUS-FNA (or EUS-FNB), ranging from preoperative preparation and clinical applications to major complications, are addressed. Related technologies with the potential to improve diagnostic accuracy are highlighted. We believe that this compilation may be helpful in clinical settings and the training of beginners.
| Patient Preparation|| |
- Patients should provide signed informed consent before procedures, acknowledging the risks involved
- Results of EUS and other imaging tests (computed tomography [CT], magnetic resonance imaging, or ultrasound [US]) must be reviewed preliminarily by specialists in charge
- A 6–8-h period of fasting is required for patients in advance of procedures
- Patients are generally recumbent (on left side) for EUS examinations
- Such examinations are contraindicated in the event of a coagulation disorder.
Sedation during endoscopic ultrasound
- Topical pharyngeal anesthesia (e.g., lidocaine) is generally administered, and a sedative/hypnotic (e.g., midazolam) is appropriate to ease patient anxiety. Continuous monitoring of pulse, blood pressure, and oxygenation is also essential
- Intravenous delivery of propofol by an anesthesiologist during endoscopy is considered safe and has become the preferred method for induction and maintenance of anesthesia 
- General anesthesia (with endotracheal intubation) is not routinely used in this setting but may be required if propofol-induced respiratory failure should occur.
| Clinical Indications|| |
Submucosal tumors/subepithelial lesions
Submucosal tumors are neoplasms originating below digestive tract mucosa. Subepithelial lesion (SEL) is a term coined recently to denote growths beneath the epithelium. SELs may be neoplastic or nonneoplastic in nature, ectopic pancreas being one example of nonneoplastic SEL.
EUS is the most accurate imaging technique for differentiating SELs and extramural distortions because information on location, size, echo pattern, and level of origin is conveyed. FNA may be performed jointly with EUS in hopes of establishing a pathologic diagnosis, a strategy proven accurate by some in pretherapeutic diagnosis of gastric SELs.,, However, adequacy of sampling periodically falls short (17.7%) or precludes warranted immunohistochemistry.
In a recent meta-analysis, EUS-guided needle sampling was shown safe but only moderately effective in diagnosing upper gastrointestinal (GI) SELs. The choice of needle for FNA, Tru-cut biopsy, or FNB (i.e., 19 gauge, 22 gauge, or 25 gauge) does not seem to alter overall diagnostic rates. Furthermore, EUS-FNA is not always needed to diagnose SELs. Deep biopsy, also known as bite-on-bite or stacked forceps biopsy, is still considered the superior choice for pathologic evaluation. Alternative methods available for tissue sampling include endoscopic mucosal resection, endoscopic submucosal dissection, and submucosal tunneling with endoscopic resection.
Before FNA is applied, patients' symptoms and comorbid conditions must be considered, as well as certain characteristics (size, location, and echo patterns) of lesions. It may be difficult to perform EUS-FNA in some instances of small-diameter SELs (~10 mm). To stabilize SELs during FNA, Yamabe et al. attached a cap device to the scope tip.
It has been acknowledged that EUS-FNA is particularly useful in circumstances where the pathologic diagnosis of SELs is critical but is not achievable through endoscopic forceps biopsy , as follows:
- A patient with history of malignant SELs (or other malignancy) to rule out possible metastasis
- A patient with nonresectable malignant GI stromal tumor who may benefit from EUS-FNA before initiating tyrosine kinase inhibitor therapy.
Differential diagnosis of diffuse gastric wall thickening
Gastric wall thickening is detectable by EUS, showing which layers are involved and any structural loss. It may thus help identify the fundamental cause (i.e., infiltrating carcinoma, lymphoma, various metastases, eosinophilic gastroenteritis, Zollinger–Ellison syndrome, Menetrier's disease, tuberculosis, or amyloidosis). In this context, the false-negative rate for superficial biopsy is high. Deep biopsy, also known as bite-on-bite or stacked forceps biopsy, is a widely accepted alternate approach. There are few studies addressing the diagnosis of diffuse digestive wall thickening through EUS-FNA, but related data suggest a diagnostic yield of ~60%. Hence, EUS-FNA is a viable option if bite-on-bite tissue sampling is nondiagnostic.
Solid pancreatic lesions
The accuracy of EUS-FNA in diagnosing pancreatic cancer is high,,,,,,, making it the preferred method for pathologic diagnosis of pancreatic tumors. EUS-FNA generally provides adequate material for pathologic assessment.,, According to a recent meta-analysis of pooled data, diagnostic sensitivity and specificity were 85% and 98%, respectively.
EUS-FNA is appropriate in the following circumstances:
- Suspected pancreatic cancer ( first choice for pathologic diagnosis)
- Preoperative assessments of patients with potentially resectable pancreatic neoplasms (whether needle tract is in surgically resected area or not)
Ngamruengphong et al. recently reported outcomes of a retrospective population-based study examining the impact of preoperative EUS-FNA on overall and cancer-specific survival in patients with locoregional pancreatic cancer undergoing surgery with curative intent. In this instance, preoperative EUS-FNA bore no association with increased risk of mortality, suggesting that EUS-FNA is safe for diagnosing suspicious pancreatic lesions. A smaller prior study likewise examined the effect of preoperative EUS-FNA on overall survival in patients with pancreatic neoplasms, finding no related adverse perioperative or long-term outcomes in cases with solid neoplasms after distal pancreatectomy 
- Nonproductive EUS-FNA attempts
Repeated EUS-FNA is a low-risk means of reaping substantial clinical benefits.,, In clinical practice, repeat EUS-FNA is especially worthwhile if initial aspiration of a suspected tumor is nondiagnostic, but other signs of malignancy, such as vascular invasion or lymphadenopathy, are evident by EUS. In addition, if US or CT served initially for guidance, use of EUS-FNA on the next attempt may increase the diagnostic yield
- Nonresectable pancreatic cancer (in examining suspected metastases during staging)
- Distinguishing autoimmune pancreatitis (AIP) from pancreatic cancer
Histologic diagnosis of AIP typically requires larger samples to evaluate architectural elements and perform immunostains. Only surgical or core biopsies are adequate for definitive diagnosis (specimens extracted through EUS-FNA providing too little tissue). Nevertheless, there is recent evidence that EUS-FNA is safe and reliable in histologic documentation of AIP. The diagnostic yield is not high, but surgery may be avoided in those patients who lack distinctive features of AIP 
- Diagnosis of other solid pancreatic lesions (such as tuberculosis or abscess) if imaging evaluation is difficult.
Clinical reliability of endoscopic ultrasound-guided fine-needle aspiration in diagnosing pancreatic cystic lesions
Pancreatic cystic lesions (PCLs) comprise a diverse pathologic subset, with variable malignant potential. Many PCLs (40%) are nonneoplastic (pseudocysts [PCs]; lymphoepithelial cyst; epidermoid, congenital, or retention cysts), but the majority are pancreatic cystic neoplasms, including intraductal papillary mucinous neoplasm, mucinous cystic neoplasm (MCN), serous cystic neoplasm, and cystic degeneration of solid tumors. The most important issues are ensuring appropriate (i.e., nonexcessive) patient treatment, thus limiting patient anxiety, and determining which patients may benefit from surgery. Despite the widespread availability of cross-sectional imaging and all pertinent technologic advances, PCLs are still diagnostically challenging. CT is a good-quality initial test to be used in accordance with clinical data although its diagnostic sensitivity is <70%. Magnetic resonance cholangiopancreatography may assist in ascertaining main pancreatic duct communication. However, as a minimally invasive diagnostic tool, EUS-FNA provides investigators with cyst fluid for chemical and cytologic analyses.,
Cyst fluid biochemistry and tumor markers
Cytopathology and analysis of conventional markers in cyst fluid, such as amylase, carcinoembryonic antigen (CEA), and cancer antigen (CA) 19-9, improve diagnostic capability. Of markers tested in cyst fluid, CEA (as opposed to CA 19-9, CA 72-4, or CA-125) is the most accurate index of pancreatic MCNs. In pancreatic cyst fluid, a CEA concentration of 192 ng/mL is the customary cut-point for differentiating mucinous from nonmucinous lesions. Similarly, a fluid amylase level of <250 IU/L excludes the diagnosis of PC. At present, cytologic analysis of pancreatic cyst fluid confers no diagnostic benefit over radiologic findings alone.
Mediastinal lesions surrounding esophagus
EUS has proved accurate in delineating middle and posterior mediastinal lesions surrounding the esophagus, and EUS-FNA is considered safe in this region. Although the role of EUS in the staging of lung cancer is still under evaluation, the diagnostic accuracy of FNA in mediastinal lesions is excellent. Researchers have confirmed a very high accuracy of FNA in mediastinal lymph nodes., Furthermore, in analyzing 153 EUS-FNA procedures targeting mediastinal lesions, Fritscher-Ravens et al. reported high diagnostic sensitivity (92%), specificity (100%), and accuracy (95%). Unfortunately, EUS-FNA of cystic mediastinal lesions may culminate in severe infection that is nonpreventable through antibiotic prophylaxis. Because the results are unlikely to affect clinical decisions, caution is advised in such lesions.
If aspiration is done in more suitable regions, such as subcarinal area and pulmonary hilum, and lesion diameter is >2 cm, adequate representative samples may be anticipated for pathologic study. In contrast, sensitivity, accuracy, and sampling adequacy of EUS-FNA decline dramatically in lesions <1 cm across. The mediastinal organs maintain relatively stable positions that are seldom disturbed, so odds of serious procedural complications are minimal if sampling is properly done. Ultimately, EUS-FNA appears safe and effective for sampling of middle and posterior mediastinal lesions surrounding the esophagus.
The many important organs situated within mediastinum call for a skilled endoscopist to perform this procedure. In addition, baseline cardiorespiratory function should be evaluated beforehand, and blood oxygen saturation should be monitored during the procedure to avoid asphyxiation.
EUS-FNA is recommended for the use in staging esophageal cancer. Its accuracy in confirming nodal and left hepatic metastases has been shown to surpass that of EUS and CT.,, To evaluate esophageal cancer in the aftermath of adjuvant therapy, 18F-fluorodeoxyglucose positron emission tomography/CT remains the first choice.,
Although not a standard method of diagnosing gastric cancer, EUS-FNA is still a very important modality. FNA may help in diagnosing remote metastases, particularly if results may alter tumor staging and thereby the treatment received.,
Suspicious lymph nodes
The accuracy of FNA in lymph nodes is high. If therapeutic strategy requires pathologic substantiation, and other biopsy methods are unavailable, EUS-FNA of a suspicious lymph node is recommended.
EUS-FNA is not routinely used for staging of rectal cancer. Preoperative staging is more often achieved through EUS alone, with no significant gain in accuracy by adding FNA. EUS-FNA has been used to assess extramesenteric lymph nodes for early recurrence of rectal cancer.
Left adrenal masses
EUS-FNA of the left adrenal gland is safe and may be useful in evaluation and staging of suspected malignancy., This approach is recommended if treatment strategies rely heavily on pathologic diagnosis.
Malignant biliary obstruction
EUS-FNA is of great use in diagnosing malignant biliary obstruction, whether from cholangiocarcinoma or pancreatic cancer., In a prospective investigation by Weilert et al., EUS-FNA proved superior to endoscopic retrograde cholangiopancreatography (ERCP) in procuring tissue from presumptive sites, especially pancreatic masses. EUS-FNA should be performed before ERCP in all patients with suspected malignant biliary obstruction.,
| Techniques to Increase Diagnostic Yield|| |
Suction technique in solid lesions
Present opinions on the use of suction during fine-needle procedures vary.,, Suction may contaminate the sample with blood, clouding cytologic interpretation. EUS-FNA done without suction or by slow-pull technique seems to fare better in terms accuracy and sensitivity of cytologic diagnoses, resulting in only slight blood contamination when aspirating solid lesions.
In histologic preparations, recent studies have confirmed that biopsy with (vs. without) suction is superior for tissue acquisition; higher suction pressure seems to yield more tissue., Biopsy by wet suction technique will also enhance tissue procurement.
The quantity of tissue acquired through FNA of lymph nodes is usually good, but to reduce blood contamination, suction is not recommended.
Endoscopic ultrasound-guided fine-needle aspiration with or without stylet
As indicated by prospective studies, neither the diagnostic yield in instances of malignancy nor the proportion of inadequate specimens differed in passes done with or without a stylet, regardless of specimen type (histologic or cytologic).,,
The high-level evidence is still lacking in terms of needle choice (19 gauge, 22 gauge, or 25 gauge) for optimal diagnostic yield. Typically, 19 gauge is applied in interventional procedures, 22 gauge is routinely used to obtain histologic (tissue) specimens, and 25 gauge has gained in popularity for cytologic evaluations since the advent of rapid on-site evaluation (ROSE). Recently, a 25-gauge needle has been widely applied in aspirating solid pancreatic masses. Although a 19-gauge needle is more successful in aspirating mucinous cyst fluid, it is difficult to manipulate in transduodenal punctures.
Rapid on-site evaluation
In analyzing the performance of both EUS technologists and cytotechnologists, neither provided reliable assessments of FNA sampling adequacy (from pancreatic masses) by gross visual inspection of specimen-bearing slides. False-positive assessments occurred in 30% of samples.
ROSE of EUS-FNA specimens is considered a highly accurate approach, comparing favorably with final cytologic outcomes. Conducting ROSE during EUS-FNA of pancreatic masses reportedly correlated with improved adequacy and diagnostic yield, resulting in significantly fewer inadequate samples and fewer needle passes. However, the current observational data on the impact of ROSE have been conflicting. In a recently published meta-analysis, comparing EUS-FNA with and without ROSE, no statistically significant difference in diagnostic yield or proportion of patients with adequate specimens was demonstrated. Diagnostic sensitivity and specificity were also comparable for both groups. In most studies, the diagnostic yield through EUS-FNA and ROSE in combination may exceed 90%. However, similar results are achievable in high-volume centers, without ROSE, making further improvement difficult to envision. A multiplicity of skills is required for successful results, so ROSE alone is not the overriding factor. In hospitals with diagnostic accuracy rates <90%, ROSE is nevertheless an important consideration.
Needle-pass estimates (without rapid on-site evaluation)
ROSE entails direct evaluation of smears produced at point of care in the endoscopy suite, which then aids in determining the number of passes in EUS-FNA needed for final diagnosis. However, ROSE is not an option in many centers. The endosonographer is not privy to immediate assessments and cannot guarantee that aspirates obtained are diagnostically adequate. Various studies have attempted to gauge needle passes appropriately, without benefit of ROSE. It appears that at least five to seven passes are required for pancreatic masses, three passes for lymph nodes, and only one pass for PCLs.,,,
| Complications|| |
Although few reports have focused on complications after EUS-FNA, published data have confirmed that related morbidity and mortality rates are relatively low, with most events qualifying as mild to moderate in severity. In a systematic review conducted by Wang et al., EUS-FNA was found relatively safe, marked by a very low rate of complications (~1%) and a 0.98% (107/10,941) rate of procedure-related morbidity.
Of note, the complication rate for EUS-FNA of pancreatic cystic (vs. solid) lesions is higher by comparison. However, given the less-than-severe grades of complications and the clinical importance of this technique, the risk is acceptable.
Severe bleeding is a rare complication of EUS-FNA, as a study based on nationwide administrative data in Japan has shown. However, the incidence of severe bleeding in low-volume hospitals was shown to be 5-fold higher than rates in medium- and high-volume hospitals (P = 0.045), supporting the notion put forth previously that complication frequencies in this setting reflect a learning curve.
Bleeding risk for endoscopic ultrasound-guided fine-needle aspiration in patients given anticoagulants
The guidelines of major GI endoscopic societies list EUS-FNA as a high-risk procedure for bleeding. However, few studies have examined the risk of bleeding for EUS-FNA of solid organs in patients who continue antithrombotic treatment. One study by Inoue et al. cites a low incidence of bleeding related to EUS-FNA in patients receiving antithrombotic agents. Bleeding events were few, despite aspirin or cilostazol continuation. Although EUS-FNA of solid lesions during clopidogrel use similarly may not place patients at high risk of bleeding, discontinuation of low-molecular-weight heparins should be considered in advance of these procedures.
Tumor cell seeding
Concerns that tumor cells are seeded along needle tracks or within the peritoneum have limited the preoperative use of EUS-FNA in pancreatic cancer.,, It appears that peritoneal carcinomatosis may occur with greater frequency in such patients who undergo percutaneous FNA. Nevertheless, at least two investigations , have yielded evidence to refute this argument, finding no increased risk of needle-tract seeding and supporting EUS-FNA as the diagnostic method of choice in patients with potentially resectable pancreatic cancer.
Clinical infectious complications are very rare after EUS-FNA of solid lesions, with incidences of 0%–0.6% in two large prospective series., Although EUS-FNA of PCLs has been linked to a higher rate of infection, the risk is deemed acceptable as previously mentioned. Consideration should be given to the puncture of mediastinal cysts, for which the rate of infection is much higher. Some infections due to mediastinal cyst aspiration are life-threatening, notably in bronchogenic cysts.,
Other rare conditions
Mediastinitis after FNA has been described in a patient with sarcoidosis. Bile peritonitis also reportedly developed after an inadvertent biliary puncture during EUS-FNA, and hemothorax due to FNA of an SEL (in gastric fornix) has been documented. Finally, acute ectopic pancreatitis is an unusual complication both induced and diagnosed through EUS-FNA and subsequently cured through surgery.
The guidelines above are based on a literature review and the consensus of endoscopic experts, hoping to be of clinical use and help train beginners. In this setting, however, clinical aspects are complex and evolving, requiring strategic modifications to meet individual needs. As technical developments and new research continue to surge, the future updates of these recommendations will follow.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
| References|| |
Gotoda T, Okada H, Hori K, et al.
Propofol sedation with a target-controlled infusion pump and bispectral index monitoring system in elderly patients during a complex upper endoscopy procedure. Gastrointest Endosc
Nayar DS, Guthrie WG, Goodman A, et al.
Comparison of propofol deep sedation versus moderate sedation during endosonography. Dig Dis Sci
Cho JW; Korean ESD Study Group. Current Guidelines in the Management of Upper Gastrointestinal Subepithelial Tumors. Clin Endosc
Attwell A, Sams S, Fukami N. Diagnosis of ectopic pancreas by endoscopic ultrasound with fine-needle aspiration. World J Gastroenterol
Akahoshi K, Oya M, Koga T, et al.
Clinical usefulness of endoscopic ultrasound-guided fine needle aspiration for gastric subepithelial lesions smaller than 2 cm. J Gastrointestin Liver Dis
Mekky MA, Yamao K, Sawaki A, et al.
Diagnostic utility of EUS-guided FNA in patients with gastric submucosal tumors. Gastrointest Endosc
Turhan N, Aydog G, Ozin Y, et al
. Endoscopic ultrasonography-guided fine-needle aspiration for diagnosing upper gastrointestinal submucosal lesions: A prospective study of 50 cases. Diagn Cytopathol
Hoda KM, Rodriguez SA, Faigel DO. EUS-guided sampling of suspected GI stromal tumors. Gastrointest Endosc
Zhang XC, Li QL, Yu YF, et al.
Diagnostic efficacy of endoscopic ultrasound-guided needle sampling for upper gastrointestinal subepithelial lesions: A meta-analysis. Surg Endosc
Lee DS, Ahn YC, Eom DW, et al
. Primary esophageal mucosa-associated lymphoid tissue lymphoma diagnosed by using stacked forceps biopsy. Dis Esophagus
Sun S, Ge N, Wang C, et al
. Endoscopic band ligation of small gastric stromal tumors and follow-up by endoscopic ultrasonography. Surg Endosc
Yamabe A, Irisawa A, Bhutani MS, et al.
Usefulness of endoscopic ultrasound-guided fine-needle aspiration with a forward-viewing and curved linear-array echoendoscope for small gastrointestinal subepithelial lesions. Endosc Int Open
Fernández-Esparrach G, Sendino O, Solé M, et al.
Endoscopic ultrasound-guided fine-needle aspiration and trucut biopsy in the diagnosis of gastric stromal tumors: A randomized crossover study. Endoscopy
Pellisé Urquiza M, Fernández-Esparrach G, Solé M, et al.
Endoscopic ultrasound-guided fine needle aspiration: Predictive factors of accurate diagnosis and cost-minimization analysis of on-site pathologist. Gastroenterol Hepatol
Giovannini M. Contrast-enhanced endoscopic ultrasound and elastosonoendoscopy. Best Pract Res Clin Gastroenterol
Iglesias-Garcia J, Larino-Noia J, Abdulkader I, et al
. Quantitative endoscopic ultrasound elastography: An accurate method for the differentiation of solid pancreatic masses. Gastroenterology
Napoleon B, Alvarez-Sanchez MV, Gincoul R, et al.
Contrast-enhanced harmonic endoscopic ultrasound in solid lesions of the pancreas: Results of a pilot study. Endoscopy
Khalid A, Nodit L, Zahid M, et al.
Endoscopic ultrasound fine needle aspirate DNA analysis to differentiate malignant and benign pancreatic masses. Am J Gastroenterol
Maluf-Filho F, Kumar A, Gerhardt R, et al.
Kras mutation analysis of fine needle aspirate under EUS guidance facilitates risk stratification of patients with pancreatic mass. J Clin Gastroenterol
Pellise M, Castells A, Gines A, et al.
Clinical usefulness of KRAS mutational analysis in the diagnosis of pancreatic adenocarcinoma by means of endosonography-guided fine-needle aspiration biopsy. Aliment Pharmacol Ther
Iglesias-Garcia J, Lariño-Noia J, Domínguez-Muñoz JE. When to puncture, when not to puncture: Pancreatic masses. Endosc Ultrasound
Voss M, Hammel P, Molas G, et al.
Value of endoscopic ultrasound guided fine needle aspiration biopsy in the diagnosis of solid pancreatic masses. Gut
Iglesias-Garcia J, Dominguez-Munoz E, Lozano-Leon A, et al.
Impact of endoscopic ultrasound-guided fine needle biopsy for diagnosis of pancreatic masses. World J Gastroenterol
Papanikolaou IS, Adler A, Wegener K, et al.
Prospective pilot evaluation of a new needle prototype for endoscopic ultrasonography-guided fine-needle aspiration: Comparison of cytology and histology yield. Eur J Gastroenterol Hepatol
Hewitt MJ, McPhail MJ, Possamai L, et al
. EUS-guided FNA for diagnosis of solid pancreatic neoplasms: A meta-analysis. Gastrointest Endosc
Ngamruengphong S, Swanson KM, Shah ND, et al
. Preoperative endoscopic ultrasound-guided fine needle aspiration does not impair survival of patients with resected pancreatic cancer. Gut
Beane JD, House MG, Coté GA, et al.
Outcomes after preoperative endoscopic ultrasonography and biopsy in patients undergoing distal pancreatectomy. Surgery
Kim EY. Role of repeated endoscopic ultrasound-guided fine needle aspiration for inconclusive initial cytology result. Clin Endosc
Téllez-Ávila FI, Martínez-Lozano JA, Rosales-Salinas A, et al.
Repeat endoscopic ultrasound fine needle aspiration after a first negative procedure is useful in pancreatic lesions. Endosc Ultrasound
Mitchell RA, Stanger D, Shuster C, et al
. Repeat endoscopic ultrasound-guided fine-needle aspiration in patients with suspected pancreatic cancer: Diagnostic yield and associated change in access to appropriate care. Can J Gastroenterol Hepatol
Morishima T, Kawashima H, Ohno E, et al.
Prospective multicenter study on the usefulness of EUS-guided FNA biopsy for the diagnosis of autoimmune pancreatitis. Gastrointest Endosc
Kanno A, Ishida K, Hamada S, et al.
Diagnosis of autoimmune pancreatitis by EUS-FNA by using a 22-gauge needle based on the International Consensus Diagnostic Criteria. Gastrointest Endosc
Iwashita T, Yasuda I, Doi S, et al.
Use of samples from endoscopic ultrasound-guided 19-gauge fine-needle aspiration in diagnosis of autoimmune pancreatitis. Clin Gastroenterol Hepatol
Lennon AM, Wolfgang C. Cystic neoplasms of the pancreas. J Gastrointestinal Surg
Jones MJ, Buchanan AS, Neal CP, et al
. Imaging of indeterminate pancreatic cystic lesions: A systematic review. Pancreatology
Nakai Y, Isayama H, Itoi T, et al
. Role of endoscopic ultrasonography in pancreatic cystic neoplasms: Where do we stand and where will we go? Dig Endos
Thornton GD, McPhail MJ, Nayagam S, et al
. Endoscopic ultrasound guided fine needle aspiration for the diagnosis of pancreatic cystic neoplasms: A meta-analysis. Pancreatology
Brugge WR, Lewandrowski K, Lee-Lewandrowski E, et al.
Diagnosis of pancreatic cystic neoplasms: A report of the cooperative pancreatic cyst study. Gastroenterology
Shirley LA, Walker J, Krishna S, et al.
Routine cyst fluid cytology is not indicated in the evaluation of pancreatic cystic lesions. J Gastrointest Surg
Tournoy KG, Praet MM, Van Maele G, et al
. Esophageal endoscopic ultrasound with fine-needle aspiration with an on-site cytopathologist: High accuracy for the diagnosis of mediastinal lymphadenopathy. Chest
Bhutani MS, Hawes RH, Hoffman BJ. A comparison of the accuracy of echo features during endoscopic ultrasound (EUS) and EUS-guided fine-needle aspiration for diagnosis of malignant lymph node invasion. Gastrointest Endosc
Fritscher-Ravens A, Soehendra N, Schirrow L, et al.
Role of transesophageal endosonography-guided fine-needle aspiration in the diagnosis of lung cancer. Chest
Keswani RN, Early DS, Edmundowicz SA, et al.
Routine positron emission tomography does not alter nodal staging in patients undergoing EUS-guided FNA for esophageal cancer. Gastrointest Endosc
Marsman WA, Brink MA, Bergman JJ, et al.
Potential impact of EUS-FNA staging of proximal lymph nodes in patients with distal esophageal carcinoma. Endoscopy
Eloubeidi MA, Wallace MB, Reed CE, et al.
The utility of EUS and EUS-guided fine needle aspiration in detecting celiac lymph node metastasis in patients with esophageal cancer: A single-center experience. Gastrointest Endosc
Cerfolio RJ, Bryant AS, Ohja B, et al
. The accuracy of endoscopic ultrasonography with fine-needle aspiration, integrated positron emission tomography with computed tomography, and computed tomography in restaging patients with esophageal cancer after neoadjuvant chemoradiotherapy. J Thorac Cardiovasc Surg
Anderegg MC, de Groof EJ, Gisbertz SS, et al
. 18F-FDG PET-CT after neoadjuvant chemoradiotherapy in esophageal cancer patients to optimize surgical decision making. PLoS One
Araujo J, Bories E, Caillol F, et al
. Distant lymph node metastases in gastroesophageal junction adenocarcinoma: Impact of endoscopic ultrasound-guided fine-needle aspiration. Endosc Ultrasound
Hassan H, Vilmann P, Sharma V. Impact of EUS-guided FNA on management of gastric carcinoma. Gastrointest Endosc
Harewood GC, Wiersema MJ, Nelson H, et al.
A prospective, blinded assessment of the impact of preoperative staging on the management of rectal cancer. Gastroenterology
Gleeson FC, Clain JE, Rajan E, et al
. EUS-FNA assessment of extramesenteric lymph node status in primary rectal cancer. Gastrointest Endosc
DeWitt J, Alsatie M, LeBlanc J, et al
. Endoscopic ultrasound-guided fine-needle aspiration of left adrenal gland masses. Endoscopy
Chang KJ, Erickson RA, Nguyen P. Endoscopic ultrasound (EUS) and EUS-guided fine-needle aspiration of the left adrenal gland. Gastrointest Endosc
Uemura S, Yasuda I, Kato T, et al
. Preoperative routine evaluation of bilateral adrenal glands by endoscopic ultrasound and fine-needle aspiration in patients with potentially resectable lung cancer. Endoscopy
Onda S, Ogura T, Kurisu Y, et al.
EUS-guided FNA for biliary disease as first-line modality to obtain histological evidence. Therap Adv Gastroenterol
Tummala P, Munigala S, Eloubeidi MA, et al
. Patients with obstructive jaundice and biliary stricture ± mass lesion on imaging: Prevalence of malignancy and potential role of EUS-FNA. J Clin Gastroenterol
Weilert F, Bhat YM, Binmoeller KF, et al.
EUS-FNA is superior to ERCP-based tissue sampling in suspected malignant biliary obstruction: Results of a prospective, single-blind, comparative study. Gastrointest Endosc
DeWitt J, Misra VL, Leblanc JK, et al
. EUS-guided FNA of proximal biliary strictures after negative ERCP brush cytology results. Gastrointest Endosc
Puri R, Vilmann P, Saftoiu A, et al.
Randomized controlled trial of endoscopic ultrasound-guided fine-needle sampling with or without suction for better cytological diagnosis. Scand J Gastroenterol
Lee JK, Choi JH, Lee KH, et al.
A prospective, comparative trial to optimize sampling techniques in EUS-guided FNA of solid pancreatic masses. Gastrointest Endosc
Kudo T, Kawakami H, Hayashi T, et al.
High and low negative pressure suction techniques in EUS-guided fine-needle tissue acquisition by using 25-gauge needles: A multicenter, prospective, randomized, controlled trial. Gastrointest Endosc
Chen JY, Ding QY, Lv Y, et al.
Slow-pull and different conventional suction techniques in endoscopic ultrasound-guided fine-needle aspiration of pancreatic solid lesions using 22-gauge needles. World J Gastroenterol
Matsubayashi H, Matsui T, Yabuuchi Y, et al.
Endoscopic ultrasonography guided-fine needle aspiration for the diagnosis of solid pancreaticobiliary lesions: Clinical aspects to improve the diagnosis. World J Gastroenterol
Attam R, Arain MA, Bloechl SJ, et al.
Wet suction technique (WEST): A novel way to enhance the quality of EUS-FNA aspirate. Results of a prospective, single-blind, randomized, controlled trial using a 22-gauge needle for EUS-FNA of solid lesions. Gastrointest Endosc
Wallace MB, Kennedy T, Durkalski V, et al.
Randomized controlled trial of EUS-guided fine needle aspiration techniques for the detection of malignant lymphadenopathy. Gastrointest Endosc
Abe Y, Kawakami H, Oba K, et al.
Effect of a stylet on a histological specimen in EUS-guided fine-needle tissue acquisition by using 22-gauge needles: A multicenter, prospective, randomized, controlled trial. Gastrointest Endosc
Rastogi A, Wani S, Gupta N, et al.
A prospective, single-blind, randomized, controlled trial of EUS-guided FNA with and without a stylet. Gastrointest Endosc
Wani S, Early D, Kunkel J, et al.
Diagnostic yield of malignancy during EUS-guided FNA of solid lesions with and without a stylet: A prospective, single blind, randomized, controlled trial. Gastrointest Endosc
Nguyen YP, Maple JT, Zhang Q, et al.
Reliability of gross visual assessment of specimen adequacy during EUS-guided FNA of pancreatic masses. Gastrointest Endosc
Eloubeidi MA, Tamhane A, Jhala N, et al
. Agreement between rapid and final cytologic interpretations of EUS-guided FNA specimens: Implications for the endosonographer and patient management. Am J Gastroenterol
Iglesias-Garcia J, Dominguez-Munoz JE, Abdulkader I, et al.
Influence of on-site cytopathology evaluation on the diagnostic accuracy of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) of solid pancreatic masses. Am J Gastroenterol
Kong F, Zhu J, Kong X, et al.
Rapid on-site evaluation does not improve endoscopic ultrasound-guided fine needle aspiration adequacy in pancreatic masses: A meta-analysis and systematic review. PLoS One
Wyse J, Rubino M, Iglesias Garcia J, et al
. Onsite evaluation of endoscopic ultrasound fine needle aspiration: The endosonographer, the cytotechnologist and the cytopathologist. Rev Esp Enferm Dig
2017;109. doi: 10.17235/reed.2017.4473/2016. [Epub ahead of print].
Iglesias-Garcia J, Lariño-Noia J, Abdulkader I, et al
. Rapid on-site evaluation of endoscopic-ultrasound-guided fine-needle aspiration diagnosis of pancreatic masses. World J Gastroenterol
Petrone MC, Arcidiacono PG. Basic technique in endoscopic ultrasound-guided fine needle aspiration for solid lesions: How many passes? Endosc Ultrasound
Varadarajulu S, Jhala NC. Cytopathology: A dying art or something that a gastroenterologist should know? Gastrointest Endosc
Lim LG, Lakhtakia S, Ang TL, et al.
Factors determining diagnostic yield of endoscopic ultrasound guided fine-needle aspiration for pancreatic cystic lesions: A multicentre Asian study. Dig Dis Sci
Wang KX, Ben QW, Jin ZD, et al.
Assessment of morbidity and mortality associated with EUS-guided FNA: A systematic review. Gastrointest Endosc
Tarantino I, Fabbri C, Di Mitri R, et al.
Complications of endoscopic ultrasound fine needle aspiration on pancreatic cystic lesions: Final results from a large prospective multicenter study. Dig Liver Dis
Hamada T, Yasunaga H, Nakai Y, et al.
Severe bleeding and perforation are rare complications of endoscopic ultrasound-guided fine needle aspiration for pancreatic masses: An analysis of 3,090 patients from 212 hospitals. Gut Liver
Eloubeidi MA, Tamhane A. EUS-guided FNA of solid pancreatic masses: A learning curve with 300 consecutive procedures. Gastrointest Endosc
Inoue T, Okumura F, Sano H, et al.
Bleeding risk of endoscopic ultrasound-guided fine-needle aspiration in patients undergoing antithrombotic therapy. Dig Endosc
Trindade AJ, Hirten R, Slattery E, et al
. Endoscopic ultrasound-guided fine-needle aspiration of solid lesions on clopidogrel may not be a high-risk procedure for bleeding: A case series. Digestive Endosc
Kien-Fong Vu C, Chang F, Doig L, et al
. A prospective control study of the safety and cellular yield of EUS-guided FNA or Trucut biopsy in patients taking aspirin, nonsteroidal anti-inflammatory drugs, or prophylactic low molecular weight heparin. Gastrointest Endosc
Paquin SC, Gariépy G, Lepanto L, et al
. A first report of tumor seeding because of EUS-guided FNA of a pancreatic adenocarcinoma. Gastrointest Endosc
Chong A, Venugopal K, Segarajasingam D, et al
. Tumor seeding after EUS-guided FNA of pancreatic tail neoplasia. Gastrointest Endosc
Ahmed K, Sussman JJ, Wang J, et al
. A case of EUS-guided FNA-related pancreatic cancer metastasis to the stomach. Gastrointest Endosc
Micames C, Jowell PS, White R, et al
. Lower frequency of peritoneal carcinomatosis in patients with pancreatic cancer diagnosed by EUS-guided FNA vs.
percutaneous FNA. Gastrointest Endosc
Ngamruengphong S, Xu C, Woodward TA, et al
. Risk of gastric or peritoneal recurrence, and long-term outcomes, following pancreatic cancer resection with preoperative endosonographically guided fine needle aspiration. Endoscopy
Wiersema MJ, Vilmann P, Giovannini M, et al
. Endosonography-guided fine-needle aspiration biopsy: Diagnostic accuracy and complication assessment. Gastroenterology
Al-Haddad M, Wallace MB, Woodward TA, et al
. The safety of fine-needle aspiration guided by endoscopic ultrasound: A prospective study. Endoscopy
Williams DB, Sahai AV, Aabakken L, et al.
Endoscopic ultrasound guided fine needle aspiration biopsy: A large single centre experience. Gut
Mahady SE, Moss A, Kwan V. EUS-guided drainage of a mediastinal collection complicating FNA of a bronchogenic cyst. Gastrointest Endosc
Annema JT, Veseliç M, Versteegh MI, et al
. Mediastinitis caused by EUS-FNA of a bronchogenic cyst. Endoscopy
Wildi SM, Hoda RS, Fickling W, et al.
Diagnosis of benign cysts of the mediastinum: The role and risks of EUS and FNA. Gastrointest Endosc
Bohle W, Zoller WG. Mediastinitis after EUS-FNA in a patient with sarcoidosis – Case report with endosonographic features and review of the literature. Z Gastroenterol
Di Matteo F, Shimpi L, Gabbrielli A, et al
. Same-day endoscopic retrograde cholangiopancreatography after transduodenal endoscopic ultrasound-guided needle aspiration: Do we need to be cautious? Endoscopy
Kawakami H, Kuwatani M, Kubo K, et al
. Huge hemothorax caused by endoscopic ultrasound-guided fine-needle aspiration of a submucosal tumor of the gastric fornix. Endoscopy
2015;47 Suppl 1 UCTN:E69-70.
Attwell A, Sams S, Fukami N. Induction of acute ectopic pancreatitis by endoscopic ultrasound with fine-needle aspiration. Clin Gastroenterol Hepatol
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