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Magahis PT, Chhoda A, Berzin TM, Farrell JJ, Wright DN, Rizvi A, Hanscom M, Carr-Locke DL, Sampath K, Sharaiha RZ, Mahadev S. Risk of Pancreatitis After Endoscopic Ultrasound-Guided Fine-Needle Aspiration of Pancreatic Cystic Lesions: A Systematic Review and Meta-Analysis. Am J Gastroenterol 2024:00000434-990000000-01226. [PMID: 38976379 DOI: 10.14309/ajg.0000000000002942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 06/21/2024] [Indexed: 07/10/2024]
Abstract
INTRODUCTION Endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA) is frequently used to risk-stratify pancreatic cystic lesions (PCLs). Rising PCL incidence and developments in tissue acquisition and specimen analysis necessitate updated appraisal of EUS-FNA safety, particularly the risk of postprocedure pancreatitis, the most common EUS-FNA-related adverse event. Our systematic review aims to accurately quantify the risk of EUS-FNA-related pancreatitis to best inform decisions regarding EUS-FNA's optimal role in PCL workup. METHODS We performed systematic searches in 4 databases from inception to April 2024 for original English-language studies investigating EUS-FNA-related pancreatitis. We extracted data on demographics and EUS-FNA-related pancreatitis risk, severity, and risk factors. These were meta-analyzed through the DerSimonian Laird Method using a random-effects model. Meta-regression of pancreatitis risk was performed to delineate associations with clinical and procedural characteristics. RESULTS Sixty-four studies comprised 8,086 patients and reported 110 EUS-FNA-related pancreatitis events. Pooled risk of EUS-FNA-related pancreatitis was 1.4% (95% confidence intervals, -0.8% to 3.5%; I2 = 0.00), which was predominantly of mild severity (67%) and uniformly nonfatal. Pancreatitis risk lacked significant association with sample size, age, sex, cyst size, needle caliber, or passes, although we noted trends toward higher risk in studies published after 2015, those using higher gauge needles (19 G vs 22 G/25 G), and those performing EUS-guided through-the-needle biopsy. DISCUSSION We note with high certainty that pancreatitis after EUS-FNA of PCLs is infrequent and mild in severity with no mortality in the included cohort. EUS-guided through-the-needle biopsy may serve as a significant risk factor for EUS-FNA-related pancreatitis risk; however, further studies are needed to delineate other predisposing characteristics.
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Affiliation(s)
- Patrick T Magahis
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
| | - Ankit Chhoda
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - Tyler M Berzin
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - James J Farrell
- Department of Digestive Diseases, Yale School of Medicine, New Haven, Connecticut, USA
| | - Drew N Wright
- Samuel J. Wood Library, Weill Cornell Medical College, New York, New York, USA
| | - Anam Rizvi
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
| | - Mark Hanscom
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
| | - David L Carr-Locke
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
| | - Kartik Sampath
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
| | - Reem Z Sharaiha
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
| | - SriHari Mahadev
- Weill Cornell Medical College, MD Program, New York, New York, USA
- Division of Gastroenterology and Hepatology, New York-Presbyterian Hospital/Weill Cornell Medicine, New York, New York, USA
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Wu CCH, Lim SJM, Tan DMY. Endoscopic ultrasound-guided needle-based confocal laser endomicroscopy for pancreatic cystic lesions: current status and future prospects. Clin Endosc 2024; 57:434-445. [PMID: 38978396 PMCID: PMC11294861 DOI: 10.5946/ce.2023.157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 03/04/2024] [Accepted: 03/05/2024] [Indexed: 07/10/2024] Open
Abstract
Pancreatic cystic lesions (PCLs) have increased in prevalence due to the increased usage and advancements in cross-sectional abdominal imaging. Current diagnostic techniques cannot distinguish between PCLs requiring surgery, close surveillance, or expectant management. This has increased the morbidity and healthcare costs from inappropriately aggressive and conservative management strategies. Endoscopic ultrasound (EUS) needle-based confocal laser endomicroscopy (nCLE) allows for microscopic examination and delineation of the surface epithelium of PCLs. Landmark studies have identified characteristics distinguishing various types of PCLs, confirmed the high diagnostic yield of EUS-nCLE (especially for PCLs with an equivocal diagnosis), and shown that EUS-nCLE helps to change management and reduce healthcare costs. Refining procedure technique and reducing procedure length have improved the safety of EUS-nCLE. The utilization of artificial intelligence and its combination with other EUS-based advanced diagnostic techniques would further improve the results of EUS-based PCL diagnosis. A structured training program and device improvements to allow more complete mapping of the pancreas cyst epithelium will be crucial for the widespread adoption of this promising technology.
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Affiliation(s)
- Clement Chun Ho Wu
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Medicine Academic Clinical Programme (MedACP), Duke-NUS Medical School, Singapore, Singapore
| | - Samuel Jun Ming Lim
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Medicine Academic Clinical Programme (MedACP), Duke-NUS Medical School, Singapore, Singapore
| | - Damien Meng Yew Tan
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
- Medicine Academic Clinical Programme (MedACP), Duke-NUS Medical School, Singapore, Singapore
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Comparative Performance of Endoscopic Ultrasound-Based Techniques in Patients With Pancreatic Cystic Lesions: A Network Meta-Analysis. Am J Gastroenterol 2023; 118:243-255. [PMID: 36563321 DOI: 10.14309/ajg.0000000000002088] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Accepted: 11/02/2022] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Evidence on the comparative diagnostic performance of endoscopic ultrasound (EUS)-based techniques for pancreatic cystic lesions (PCLs) is limited. This network meta-analysis comprehensively compared EUS-based techniques for PCL diagnosis. METHODS A comprehensive literature search was performed for all comparative studies assessing the accuracy of 2 or more modalities for PCL diagnosis. The primary outcome was the diagnostic efficacy for mucinous PCLs. Secondary outcomes were the diagnostic efficacy for malignant PCLs, diagnostic success rate, and adverse event rate. A network meta-analysis was conducted using the ANOVA model to assess the diagnostic accuracy of each index. RESULTS Forty studies comprising 3,641 patients were identified. The network ranking of the superiority index for EUS-guided needle-based confocal laser endomicroscopy (EUS-nCLE) and EUS-guided through-the-needle biopsy (EUS-TTNB) were significantly higher than other techniques for differentiating mucinous PCLs; besides, EUS-TTNB was also the optimal technique in identifying malignant PCLs. The evidence was inadequate for EUS-nCLE diagnosing malignant PCLs and contrast-enhanced harmonic EUS diagnosing both mucinous and malignant PCLs. Glucose showed a high sensitivity but low specificity, and molecular analysis (KRAS, GNAS, and KRAS + GNAS mutations) showed a high specificity but low sensitivity for diagnosing mucinous PCLs. Satisfactory results were not obtained during the evaluation of the efficiency of pancreatic cyst fluid (PCF) biomarkers in detecting malignant PCLs. DISCUSSION For centers with relevant expertise and facilities, EUS-TTNB and EUS-nCLE were better choices for the diagnosis of PCLs. Further studies are urgently required for further improving PCF biomarkers and validating the diagnostic performance of the index techniques.
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Pancreatic Cystic Neoplasms: Diagnosis and Management. Diagnostics (Basel) 2023; 13:diagnostics13020207. [PMID: 36673017 PMCID: PMC9857870 DOI: 10.3390/diagnostics13020207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 12/31/2022] [Accepted: 01/03/2023] [Indexed: 01/09/2023] Open
Abstract
Pancreatic cancer is one of the most lethal cancers, largely related to the difficulties with early detection, as it typically presents in later stages. Pancreatic cystic neoplasms (PCN) are commonly diagnosed as incidental findings on routine imaging. PCN is becoming more frequently detected with the increasing ease and frequency of obtaining cross-sectional images. Certain subtypes of pancreatic cysts have the potential to progress to malignancy, and therefore, clinicians are tasked with creating a patient-centered management plan. The decision of whether to undergo surgical resection or interval surveillance can be challenging given the criteria, including PCN size, pancreatic duct dilation, presence of a mural nodule, and clinical symptoms that play a potential role in risk stratification. Furthermore, the guidelines available from the major gastrointestinal societies all differ in their management recommendations. In this review, we detail an overview of the different types of PCNs and compare major guidelines for both diagnosis and management. We include emerging evidence for next-generation sequencing as well as confocal needle endomicroscopy to aid in the diagnosis and determination of malignancy potential and diagnosis.
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Abstract
Despite advances in noninvasive techniques for imaging the pancreaticobiliary system, several disease processes including indeterminate biliary strictures as well as neuroendocrine tumors, inflammatory pseudotumors, and complex cysts of the pancreas remain difficult to characterize. New endoscopic imaging technologies have emerged to address these challenges. Cholangioscopy and intraductal ultrasound (IDUS) are powerful tools to characterize subtle biliary concretions and strictures. Confocal Laser Endomicroscopy (CLE) and Optical Coherence Tomography (OCT) are emerging approaches for the most difficult biliary lesions. Contrast harmonic endoscopic ultrasound (CH-EUS), elastography, and 3D-EUS are improving the approach to subtle pancreatic lesions, particularly in the context of indeterminate tissue sampling. Pancreatoscopy, pancreatic IDUS, and intracystic CLE hold promise to further improve the assessment of pancreatic cysts. We aim to comprehensively review the emerging clinical evidence for these innovative endoscopic imaging techniques.
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Needle-based Confocal Laser Endomicroscopy (nCLE) for Evaluation of Pancreatic Cystic Lesions: A Systematic Review and Meta-analysis. J Clin Gastroenterol 2022; 56:72-80. [PMID: 33252557 DOI: 10.1097/mcg.0000000000001468] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 10/08/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIMS Given the variable diagnostic yield of endoscopic ultrasound and endoscopic ultrasound-guided fine-needle aspiration for pancreatic cystic lesions (PCLs), novel imaging techniques including needle-based confocal laser endomicroscopy (nCLE) have been devised. The aim of this study was to perform a structured systematic review and meta-analysis to evaluate the diagnostic performance and safety of nCLE for the diagnosis of PCLs. METHODS Individualized search strategies were developed in accordance with PRISMA and MOOSE guidelines and meta-analysis analyzed according to the Cochrane Diagnostic Test Accuracy working group methodology. Measured outcomes included diagnostic characteristics and procedure-associated adverse events. A bivariate model was used to compute combined weighted sensitivity, specificity, positive/negative likelihood ratio (LR), diagnostic odds ratio, and summary receiver operating characteristic curve with corresponding 95% confidence intervals (CIs). RESULTS Seven studies (n=324; mean age: 63.99±5.36 y; 52.47% female) were included. The pooled sensitivity, specificity, positive LR, and negative LR of nCLE was 85% (95% CI, 71-93; I2=74.20%), 99% (95% CI, 90-100; I2=72.60%), 78.66 (95% CI, 7.99-774.68; I2=26.86%), and 0.15 (95% CI, 0.07-0.31; I2=75.84%), respectively. Diagnostic accuracy as measured by summary receiver operating characteristic curve was 99% (95% CI, 98-100). The pooled diagnostic odds ratio was 534 (95% CI, 50-5664; I2=58.00%). Postprocedure pancreatitis developed in 1% (95% CI, 0-3; I2=5.64%) of cases. CONCLUSIONS On the basis of this meta-analysis, nCLE appears to be an effective and safe technique for the diagnostic evaluation of PCLs. Although moderate-to-high amounts of heterogeneity were present, our results demonstrated that nCLE has a diagnostic accuracy of 99% with a low rate of adverse events.
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Kim DH, Krishna SG, Coronel E, Kröner PT, Wolfsen HC, Wallace MB, Corral JE. Confocal Laser Endomicroscopy in the Diagnosis of Biliary and Pancreatic Disorders: A Systematic Analysis. Clin Endosc 2021; 55:197-207. [PMID: 34839621 PMCID: PMC8995979 DOI: 10.5946/ce.2021.079] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/10/2021] [Indexed: 11/22/2022] Open
Abstract
Background/Aims Endoscopic visualization of the microscopic anatomy can facilitate the real-time diagnosis of pancreatobiliary disorders and provide guidance for treatment. This study aimed to review the technique, image classification, and diagnostic performance of confocal laser endomicroscopy (CLE).
Methods We conducted a systematic review of CLE in pancreatic and biliary ducts of humans, and have provided a narrative of the technique, image classification, diagnostic performance, ongoing research, and limitations.
Results Probe-based CLE differentiates malignant from benign biliary strictures (sensitivity, ≥89%; specificity, ≥61%). Needle-based CLE differentiates mucinous from non-mucinous pancreatic cysts (sensitivity, 59%; specificity, ≥94%) and identifies dysplasia. Pancreatitis may develop in 2-7% of pancreatic cyst cases. Needle-based CLE has potential applications in adenocarcinoma, neuroendocrine tumors, and pancreatitis (chronic or autoimmune). Costs, catheter lifespan, endoscopist training, and interobserver variability are challenges for routine utilization.
Conclusions CLE reveals microscopic pancreatobiliary system anatomy with adequate specificity and sensitivity. Reducing costs and simplifying image interpretation will promote utilization by advanced endoscopists.
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Affiliation(s)
- Do Han Kim
- Universidad Francisco Marroquin, School of Medicine, Guatemala City, Guatemala
| | - Somashekar G Krishna
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, Ohio, USA
| | - Emmanuel Coronel
- Division of Gastroenterology and Hepatology, MD Anderson Cancer Center, Houston, Texas, USA
| | - Paul T Kröner
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - Herbert C Wolfsen
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - Michael B Wallace
- Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA
| | - Juan E Corral
- Division of Gastroenterology and Hepatology, Presbyterian Health Services, Albuquerque, New Mexico, USA
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Keane MG, Pereira SP. The Role of Confocal Endomicroscopy in the Diagnosis and Management of Pancreatic Cysts. EUROPEAN MEDICAL JOURNAL 2021. [DOI: 10.33590/emj/20-00182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Pancreatic cystic lesions are an increasingly common clinical finding. Current diagnostic techniques cannot reliably differentiate patients with high-risk lesions requiring surgical resection from those that can be safely surveyed or discharged. As a result, some patients may undergo unnecessary surgery with associated morbidity while others enter long-term surveillance with associated healthcare costs. Needle-based confocal laser endomicroscopy enables real time microscopic examination of the epithelial lining of a cyst wall at the time of a standard endoscopic ultrasound examination. The procedure is associated with low rates of adverse events, especially when the probe is loaded into the fine-needle aspiration needle before the procedure and examination times are limited. Needle-based confocal laser endomicroscopy has consistently been shown to have better diagnostic accuracy than cytology, which is often paucicellular and non-diagnostic in pancreatic cystic lesions. Studies have shown that diagnostic accuracy in needle-based confocal laser endomicroscopy is 84–95% in mucinous lesions and 39–99% in serous lesions. However, this technology is expensive and its place in diagnostic algorithms remains uncertain. Despite this, health economic analyses in certain health systems have been favourable, largely because of its potential to be able to discharge patients with benign lesions, such as serous cystic neoplasms, from long-term surveillance. Widespread adoption of this technology is unlikely but it has the potential to have an important role in indeterminate pancreatic cystic lesions.
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Affiliation(s)
- Margaret G Keane
- Johns Hopkins Hospital, Department of Gastroenterology and Hepatology, Baltimore, Maryland, USA
| | - Stephen P Pereira
- Institute for Liver and Digestive Health, University College London, Royal Free Hospital Campus, UK
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Lee LS. Updates in diagnosis and management of pancreatic cysts. World J Gastroenterol 2021; 27:5700-5714. [PMID: 34629795 PMCID: PMC8473602 DOI: 10.3748/wjg.v27.i34.5700] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 05/14/2021] [Accepted: 08/20/2021] [Indexed: 02/06/2023] Open
Abstract
Incidental pancreatic cysts are commonly encountered with some cysts having malignant potential. The most common pancreatic cystic neoplasms include serous cystadenoma, mucinous cystic neoplasm and intraductal papillary mucinous neoplasm. Risk stratifying pancreatic cysts is important in deciding whether patients may benefit from endoscopic ultrasound (EUS) or surgical resection. Surgery should be reserved for patients with malignant cysts or cysts at high risk for developing malignancy as suggested by various risk features including solid mass, nodule and dilated main pancreatic duct. EUS may supplement magnetic resonance imaging findings for cysts that remain indeterminate or have concerning features on imaging. Various cyst fluid markers including carcinoembryonic antigen, glucose, amylase, cytology, and DNA markers help distinguish mucinous from nonmucinous cysts. This review will guide the practicing gastroenterologist in how to evaluate incidental pancreatic cysts and when to consider referral for EUS or surgery. For presumed low risk cysts, surveillance strategies will be discussed. Managing pancreatic cysts requires an individualized approach that is directed by the various guidelines.
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Affiliation(s)
- Linda S Lee
- Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA 02115, United States
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Wang X, Hu J, Yang F, Yang F, Sun S. Needle-based confocal laser endomicroscopy for diagnosis of pancreatic cystic lesions: a meta-analysis. MINIM INVASIV THER 2021; 31:653-663. [PMID: 34292117 DOI: 10.1080/13645706.2021.1888750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND AND AIM The role of needle-based confocal laser endomicroscopy (nCLE) in the diagnosis of pancreatic cystic lesions (PCLs) remains controversial. This study aimed to systematically evaluate the diagnostic accuracy and adverse effects of nCLE in the detection of pathological subtypes in patients with PCLs. MATERIAL AND METHODS We conducted a comprehensive literature search using MEDLINE, EMBASE, and Cochrane for identifying studies that reported the use of nCLE for PCLs diagnosis (dated prior to 10 October 2020). Studies with a sample size >10 were included. We used the QUADAS-2 criteria for quality evaluation. We first extracted the diagnostic rates and the information on adverse events (AEs) from the studies; then used STATA15.0 to calculate the variables, draw forest plots and summary receiver operating characteristic (SROC) curves; and finally, we completed subgroup analyses to explore the heterogeneity. RESULTS Overall, 299 article titles were identified after an initial search, and ten studies with 547 individuals with PCLs were included in the analysis. The pooled sensitivity, specificity, positive likelihood ratio, and pooled negative likelihood ratio of nCLE in detecting gastric disorders were 90%, 96%, 20.4, and 0.11, respectively. The pooled sensitivity and specificity showed a substantial heterogeneity. An ROC curve was constructed with an area under the curve (AUC) of 0.94. The overall AEs rate of pancreatitis was 2.7%. CONCLUSIONS We showed that nCLE had a relatively high sensitivity and specificity for diagnosing PCLs with a relatively low rate of AEs occurring. We suggest that nCLE has good diagnostic accuracy for PCLs.
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Affiliation(s)
- Xinyue Wang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jinlong Hu
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Fei Yang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Fan Yang
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Siyu Sun
- Department of Gastroenterology, Shengjing Hospital of China Medical University, Shenyang, China
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Okasha HH, Awad A, El-meligui A, Ezzat R, Aboubakr A, AbouElenin S, El-Husseiny R, Alzamzamy A. Cystic pancreatic lesions, the endless dilemma. World J Gastroenterol 2021; 27:2664-2680. [PMID: 34135548 PMCID: PMC8173383 DOI: 10.3748/wjg.v27.i21.2664] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/14/2021] [Accepted: 05/10/2021] [Indexed: 02/06/2023] Open
Abstract
Cystic pancreatic lesions involve a wide variety of pathological entities that include neoplastic and non-neoplastic lesions. The proper diagnosis, differentiation, and staging of these cystic lesions are considered a crucial issue in planning further management. There are great challenges for their diagnostic models. In our time, new emerging methods for this diagnosis have been discovered. Endoscopic ultrasonography-guided fine-needle aspiration cytology with chemical and molecular analysis of cyst fluid and EUS-guided fine needle-based confocal laser endomicroscopy, through the needle microforceps biopsy, and single-operator cholangioscopy/pancreatoscopy are promising methods that have been used in the diagnosis of cystic pancreatic lesions. Hereby we discuss the diagnosis of cystic pancreatic lesions and the benefits of various diagnostic models.
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Affiliation(s)
- Hussein Hassan Okasha
- Department of Internal Medicine and Gastroenterology, Hepatology Unit, Kasr Al-Aini Hospitals, Cairo University, Cairo 11562, Egypt
| | - Abeer Awad
- Department of Internal Medicine and Gastroenterology, Hepatology Unit, Kasr Al-Aini Hospitals, Cairo University, Cairo 11562, Egypt
| | - Ahmed El-meligui
- Department of Internal Medicine and Gastroenterology, Hepatology Unit, Kasr Al-Aini Hospitals, Cairo University, Cairo 11562, Egypt
| | - Reem Ezzat
- Department of Internal Medicine and Gastroenterology, Hepatology Unit, Assuit University, Assuit 71515, Egypt
| | - Ashraf Aboubakr
- Department of Gastroenterology and Hepatology, Maadi Armed Forces Medical Complex, Military Medical Academy, Cairo 11441, Egypt
| | - Sameh AbouElenin
- Department of Gastroenterology and Hepatology, Military Medical Academy, Cairo 11441, Egypt
| | - Ramy El-Husseiny
- Department of Hepatology and Tropical Medicine, National Hepatology and Tropical Medicine Research Institute (NHTMRI), Cairo 11441, Egypt
| | - Ahmed Alzamzamy
- Department of Gastroenterology and Hepatology, Maadi Armed Forces Medical Complex, Military Medical Academy, Cairo 11441, Egypt
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Keane MG, Afghani E. A Review of the Diagnosis and Management of Premalignant Pancreatic Cystic Lesions. J Clin Med 2021; 10:1284. [PMID: 33808853 PMCID: PMC8003622 DOI: 10.3390/jcm10061284] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/04/2021] [Accepted: 03/09/2021] [Indexed: 12/12/2022] Open
Abstract
Pancreatic cystic lesions are an increasingly common clinical finding. They represent a heterogeneous group of lesions that include two of the three known precursors of pancreatic cancer, intraductal papillary mucinous neoplasms (IPMN) and mucinous cystic neoplasms (MCN). Given that approximately 8% of pancreatic cancers arise from these lesions, careful surveillance and timely surgery offers an opportunity for early curative resection in a disease with a dismal prognosis. This review summarizes the current evidence and guidelines for the diagnosis and management of IPMN/MCN. Current pre-operative diagnostic tests in pancreatic cysts are imperfect and a proportion of patients continue to undergo unnecessary surgical resection annually. Balancing cancer prevention while preventing surgical overtreatment, continues to be challenging when managing pancreatic cysts. Cyst fluid molecular markers, such as KRAS, GNAS, VHL, PIK3CA, SMAD4 and TP53, as well as emerging endoscopic technologies such as needle-based confocal laser endomicroscopy and through the needle microbiopsy forceps demonstrate improved diagnostic accuracy. Differences in management and areas of uncertainty between the guidelines are also discussed, including indications for surgery, surveillance protocols and if and when surveillance can be discontinued.
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Affiliation(s)
| | - Elham Afghani
- Department of Medicine, Johns Hopkins University, Baltimore, MD 21287, USA;
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Ozretić L, Simonović AV, Rathbone ML, Young MPA, Perez-Machado MA. The benefits of the Papanicolaou Society of Cytopathology System for reporting pancreatobiliary cytology: A 2-year review from a single academic institution. Cytopathology 2021; 32:227-232. [PMID: 33415845 DOI: 10.1111/cyt.12949] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/26/2020] [Accepted: 12/03/2020] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) is an essential tool in the diagnosis of pancreatic lesions. The aim of this study was to evaluate the diagnostic accuracy of cytology from EUS-FNA, to correlate the results with the corresponding histopathological diagnoses and to analyse the impact of retrospective assignment of the Papanicolaou Society of Cytopathology (PSC) reporting system categories. METHODS All pancreatic FNA specimens reported at the Royal Free Hospital during a 2-year period were retrospectively collected and assigned to the PSC system categories. Any available corresponding histological samples were assessed for concordance. RESULTS In total, 236 cytology specimens from 223 patients were identified, of which 108 (45.8%) had corresponding histology samples. The main reason for cyto-histological discrepancy was sampling error. Interpretive error was identified in one case. Overall, sensitivity was 92.5%, specificity was 100%, diagnostic accuracy of cytology was 95%, false-positive rate was 0% and false-negative rate was 7.5%. The implementation of the new reporting system reduced the number of cases in the atypical category. All cases previously categorised as suspicious or malignant remained in the same category. CONCLUSIONS EUS-FNA is an accurate method for evaluating pancreatobiliary lesions. The implementation of the Papanicolaou Society of Cytopathology diagnostic system enhances standardisation of the reporting terminology and reduces the number of samples in the non-standardised and equivocal atypical category.
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Affiliation(s)
- Luka Ozretić
- Department of Cellular Pathology, Royal Free Hospital, London, UK
| | | | | | - Martin P A Young
- Department of Cellular Pathology, Royal Free Hospital, London, UK
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Facciorusso A, Buccino VR, Sacco R. Needle-based confocal laser endomicroscopy in pancreatic cysts: a meta-analysis. Eur J Gastroenterol Hepatol 2020; 32:1084-1090. [PMID: 32282543 DOI: 10.1097/meg.0000000000001728] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
There is currently limited evidence supporting the use of needle-based confocal laser endomicroscopy in pancreatic cystic lesions. Aim of this study was to provide a pooled estimate of the diagnostic performance and safety profile of this technique in patients with pancreatic cysts. Computerized bibliographic search on the main databases was performed through November 2019. Pooled effects were calculated using a random-effects model by means of DerSimonian and Laird test. Primary endpoint was diagnostic accuracy. Secondary outcomes were pooled sensitivity, specificity, and mean procedural time. Ten studies enrolling 536 patients were included. Eight articles, of which five prospective series, compared confocal laser endomicroscopy to cytology/cystic fluid analysis. Most patients were female and body/tail was the most frequent location of pancreatic cysts. Mucinous cysts were prevalent in most of the included studies. Diagnostic accuracy with confocal laser endomicroscopy was 88.6% (83.7-93.4%) and sensitivity analysis according to study quality, design, and treatment arms confirmed the above reported result. Pooled sensitivity and specificity were 82.4% (74.7-90.1%) and 96.6% (94.3-99%), respectively. Both accuracy and sensitivity resulted higher in patients with mucinous cysts (91.4 and 94.9%, respectively). Confocal laser endomicroscopy clearly outperformed fine-needle aspiration in terms of diagnostic accuracy (odds ratio 3.94, 1.58-9.82; P = 0.003). A mean of 6.094 minutes (4.91-7.26) was needed to complete the procedure and no significant adverse event was registered. Our meta-analysis speaks in favor of the use of needle-based confocal laser endomicroscopy as a safe and effective tool in the diagnostic algorithm of pancreatic cysts.
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Affiliation(s)
- Antonio Facciorusso
- Department of medical sciences, Gastroenterology Unit, University of Foggia, Foggia, Italy
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15
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Pereira SP, Oldfield L, Ney A, Hart PA, Keane MG, Pandol SJ, Li D, Greenhalf W, Jeon CY, Koay EJ, Almario CV, Halloran C, Lennon AM, Costello E. Early detection of pancreatic cancer. Lancet Gastroenterol Hepatol 2020; 5:698-710. [PMID: 32135127 PMCID: PMC7380506 DOI: 10.1016/s2468-1253(19)30416-9] [Citation(s) in RCA: 241] [Impact Index Per Article: 60.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 10/30/2019] [Accepted: 11/05/2019] [Indexed: 02/07/2023]
Abstract
Pancreatic ductal adenocarcinoma is most frequently detected at an advanced stage. Such late detection restricts treatment options and contributes to a dismal 5-year survival rate of 3-15%. Pancreatic ductal adenocarcinoma is relatively uncommon and screening of the asymptomatic adult population is not feasible or recommended with current modalities. However, screening of individuals in high-risk groups is recommended. Here, we review groups at high risk for pancreatic ductal adenocarcinoma, including individuals with inherited predisposition and patients with pancreatic cystic lesions. We discuss studies aimed at finding ways of identifying pancreatic ductal adenocarcinoma in high-risk groups, such as among individuals with new-onset diabetes mellitus and people attending primary and secondary care practices with symptoms that suggest this cancer. We review early detection biomarkers, explore the potential of using social media for detection, appraise prediction models developed using electronic health records and research data, and examine the application of artificial intelligence to medical imaging for the purposes of early detection.
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Affiliation(s)
- Stephen P Pereira
- Institute for Liver and Digestive Health, University College London, London, UK
| | - Lucy Oldfield
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, UK
| | - Alexander Ney
- Institute for Liver and Digestive Health, University College London, London, UK
| | - Phil A Hart
- Division of Gastroenterology, Hepatology, and Nutrition, Ohio State University Wexner Medical Center, Columbus, OH, USA
| | - Margaret G Keane
- Division of Gastroenterology and Hepatology, Johns Hopkins University, Baltimore, MD, USA
| | - Stephen J Pandol
- Department of Medicine, Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Debiao Li
- Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - William Greenhalf
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, UK
| | - Christie Y Jeon
- Department of Medicine, Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Eugene J Koay
- University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Christopher V Almario
- Department of Medicine, Division of Digestive and Liver Diseases, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Christopher Halloran
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, UK
| | - Anne Marie Lennon
- Division of Gastroenterology and Hepatology, Johns Hopkins University, Baltimore, MD, USA
| | - Eithne Costello
- Department of Molecular and Clinical Cancer Medicine, Institute of Translational Medicine, University of Liverpool, UK.
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16
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Chin YK, Wu CCH, Tan DMY. The Role of Needle-Based Confocal Laser Endomicroscopy in the Evaluation of Pancreatic Cystic Lesions: A Systematic Review. Clin Endosc 2020; 54:38-47. [PMID: 32229799 PMCID: PMC7939766 DOI: 10.5946/ce.2019.200-iden] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 01/06/2020] [Indexed: 12/18/2022] Open
Abstract
The prevalence of pancreatic cystic lesions (PCLs) has increased recently due to the increased use of cross-sectional abdominal imaging and the ageing global population. Current diagnostic techniques are inadequate to distinguish between PCLs that require surgery, close surveillance, or expectant management. This has resulted in increased morbidity from both inappropriately aggressive and conservative management strategies. Needle-based confocal laser endomicroscopy (nCLE) has allowed microscopic examination and visual delineation of the surface epithelium of PCLs. Landmark studies in this decade have correlated nCLE and histological findings and identified characteristics differentiating various types of PCLs. Subsequent studies have confirmed the high diagnostic yield of nCLE and its diagnostic utility in PCLs with an equivocal diagnosis. Moreover, nCLE has been shown to improve the diagnostic yield of PCLs. This will help avoid unnecessary pancreatic surgery, which carries significant morbidity and mortality risks. The early detection of high-grade dysplasia in PCLs will provide early surgical treatment and improve outcomes for pancreatic cancer. Despite the high upfront cost of nCLE, the improved diagnostic accuracy and resultant appropriate management have resulted in improved cost effectiveness. Refining the procedure technique and limiting the procedure length have significantly improved the safety of nCLE. A structured training program and device improvements to allow more complete mapping of the pancreatic cyst epithelium will be crucial for the widespread adoption of this promising technology.
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Affiliation(s)
- Yung Ka Chin
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore
| | - Clement Chun Ho Wu
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore.,Duke-NUS Medical School, Singapore, Singapore
| | - Damien Meng Yew Tan
- Department of Gastroenterology and Hepatology, Singapore General Hospital, Singapore.,Duke-NUS Medical School, Singapore, Singapore
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17
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Coban S, Brugge W. EUS-guided confocal laser endomicroscopy: Can we use thick and wide for diagnosis of early cancer? Gastrointest Endosc 2020; 91:564-567. [PMID: 32087898 DOI: 10.1016/j.gie.2019.10.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 02/08/2023]
Affiliation(s)
- Sahin Coban
- Division of Gastroenterology, Mount Auburn Hospital, Cambridge, Massachusetts, USA
| | - William Brugge
- Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA; Division of Gastroenterology, Mount Auburn Hospital, Cambridge, Massachusetts, USA
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18
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Krishna SG. Endoscopic ultrasound-guided confocal endomicroscopy requires high-quality imaging and interpretation for diagnostic evaluation of pancreatic cystic lesions. Endosc Int Open 2020; 8:E310-E311. [PMID: 32118104 PMCID: PMC7035129 DOI: 10.1055/a-1067-4595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Somashekar G. Krishna
- Division of Gastroenterology, Hepatology, and Nutrition, The Ohio State University Wexner Medical Center, Columbus, OH, USA,Corresponding author Somashekar G. Krishna, MD, MPH Sections of Pancreatic Disorders and Advanced EndoscopyDivision of Gastroenterology, Hepatology, and NutritionThe Ohio State University Wexner Medical Center395 W. 12th Avenue, Suite 262ColumbusOhio 43210USA+1-614-2938518
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Haghighi M, Sethi A, Tavassoly I, Gonda TA, Poneros JM, McBride RB. Diagnosis of Pancreatic Cystic Lesions by Virtual Slicing: Comparison of Diagnostic Potential of Needle-Based Confocal Laser Endomicroscopy versus Endoscopic Ultrasound-Guided Fine-Needle Aspiration. J Pathol Inform 2019; 10:34. [PMID: 31799020 PMCID: PMC6883479 DOI: 10.4103/jpi.jpi_32_19] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2019] [Accepted: 09/19/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Pancreatic cystic lesions are often challenging entities for diagnosis and management. EUS-FNA diagnostic accuracy is limited by paucicellularity of cytology specimens and sampling errors. Needle-based confocal laser endomicroscopy (nCLE) provides real-time imaging of the microscopic structure of the cystic lesion and could result in a more accurate diagnosis. AIMS AND OBJECTIVES To determine the diagnostic utility of in vivo nCLE and EUS-FNA in the diagnosis and histologic characterization of pancreatic cystic lesions (PCL). MATERIALS AND METHODS All patients diagnosed with PCL who had undergone nCLE and FNA over a 10-year period within a major urban teaching hospital were included in this study. All gastroenterology reports of the nCLE images and corresponding pathologist findings from the EUS-FNA were collected and compared with, a final diagnosis prospectively collected from clinicopathological and imaging data. RESULTS A total of n=32 patients were included in this study, which consisted of n=13 serous cystadenoma (SCA), n=7 intraductal papillary mucinous neoplasms (IPMN), n=2 mucinous cystic neoplasms (MCN), n=3 well-differentiated neuroendocrine tumors, n=2 cysts, n=2 benign pancreatic lesions, n=1 adenocarcinoma, n=1 gastrointestinal stromal tumor (GIST) and n=1 lymphangioma. The overall diagnostic rate was higher in nCLE (87.5%) vs. EUS-FNA (71.9%) While the diagnostic accuracy of nCLE and EUS-FNA were comparable in characterization of benign vs. malignant lesions, the nCLE diagnosis demonstrated higher accuracy rate in identifying mucinous cystic neoplasms compared to EUS-FNA. CONCLUSION nCLE is a useful companion diagnostic tool for pancreatic cystic lesions and could assist the cytopathologist to better triage the sample for required ancillary testing and treatment planning. The combination of nCLE and EUS-FNA may be especially helpful in reducing the proportion of cases categorized as non-diagnostic.
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Affiliation(s)
- Mehrvash Haghighi
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Amrita Sethi
- Division of Digestive and Liver Diseases, Columbia University Medical Center-New York-Presbyterian, New York City, New York, USA
| | - Iman Tavassoly
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Tamas A. Gonda
- Division of Digestive and Liver Diseases, Columbia University Medical Center-New York-Presbyterian, New York City, New York, USA
| | - John M. Poneros
- Division of Digestive and Liver Diseases, Columbia University Medical Center-New York-Presbyterian, New York City, New York, USA
| | - Russell B. McBride
- Department of Pathology, The Institute for Translational Epidemiology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
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