1.Endoscopic Therapy in Chronic Pancreatitis.
Damien Meng Yew TAN ; Stuart SHERMAN
The Korean Journal of Internal Medicine 2011;26(4):384-399
Chronic pancreatitis (CP) is a debilitating disease that can result in chronic abdominal pain, malnutrition, and other related complications. The main aims of treatment are to control symptoms, prevent disease progression, and correct any complications. A multidisciplinary approach involving medical, endoscopic, and surgical therapy is important. Endoscopic therapy plays a specific role in carefully selected patients as primary interventional therapy when medical measures fail or in patients who are not suitable for surgery. Endoscopic therapy is also used as a bridge to surgery or as a means to assess the potential response to pancreatic surgery. This review addresses the role of endoscopic therapy in relief of obstruction of the pancreatic duct (PD) and bile du ct, closure of PD leaks, and drainage of pseudocysts in CP. The role of endoscopic ultrasound-guided celiac plexus block for pain in chronic pancreatitis is also discussed.
Cholangiopancreatography, Endoscopic Retrograde/*methods
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Common Bile Duct
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Endoscopy, Gastrointestinal/methods
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Humans
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Pain/surgery
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Pancreatic Pseudocyst/surgery/therapy
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Pancreatitis, Chronic/*surgery
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Sphincter of Oddi
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Stents
2.The Role of Needle-Based Confocal Laser Endomicroscopy in the Evaluation of Pancreatic Cystic Lesions: A Systematic Review
Yung Ka CHIN ; Clement Chun Ho WU ; Damien Meng Yew TAN
Clinical Endoscopy 2021;54(1):38-47
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.
3.Endoscopic ultrasound-guided needle-based confocal laser endomicroscopy for pancreatic cystic lesions: current status and future prospects
Clement Chun Ho WU ; Samuel Jun Ming LIM ; Damien Meng Yew TAN
Clinical Endoscopy 2024;57(4):434-445
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.
4.The role of PIVKA-II in hepatocellular carcinoma surveillance in an Asian population.
Wai Yoong NG ; Daniel Yan Zheng LIM ; Si Yu TAN ; Jason Pik Eu CHANG ; Thinesh Lee KRISHNAMOORTHY ; Chee Hooi LIM ; Damien Meng Yew TAN ; Victoria Sze Min EKSTROM ; George Boon Bee GOH ; Mark Chang Chuen CHEAH ; Rajneesh KUMAR ; Chin Pin YEO ; Chee Kiat TAN
Annals of the Academy of Medicine, Singapore 2023;52(2):108-110
5.Academy of Medicine, Singapore clinical guideline on the use of sedation by non-anaesthesiologists during gastrointestinal endoscopy in the hospital setting.
Tiing Leong ANG ; Edwin SEET ; Yaw Chong GOH ; Wee Khoon NG ; Calvin Jianyi KOH ; Hock Foong LUI ; James Weiquan LI ; Aung Myint OO ; Kieron Boon Leng LIM ; Kok Sun HO ; Min Hoe CHEW ; Wai Leong QUAN ; Damien Meng Yew TAN ; Kheng Hong NG ; Hak Su GOH ; Wai Kit CHEONG ; Philip TSENG ; Khoon Lin LING
Annals of the Academy of Medicine, Singapore 2022;51(1):24-39
INTRODUCTION:
In Singapore, non-anaesthesiologists generally administer sedation during gastrointestinal endoscopy. The drugs used for sedation in hospital endoscopy centres now include propofol in addition to benzodiazepines and opiates. The requirements for peri-procedural monitoring and discharge protocols have also evolved. There is a need to develop an evidence-based clinical guideline on the safe and effective use of sedation by non-anaesthesiologists during gastrointestinal endoscopy in the hospital setting.
METHODS:
The Academy of Medicine, Singapore appointed an expert workgroup comprising 18 gastroenterologists, general surgeons and anaesthesiologists to develop guidelines on the use of sedation during gastrointestinal endoscopy. The workgroup formulated clinical questions related to different aspects of endoscopic sedation, conducted a relevant literature search, adopted Grading of Recommendations, Assessment, Development and Evaluation (GRADE) methodology and developed recommendations by consensus using a modified Delphi process.
RESULTS:
The workgroup made 16 recommendations encompassing 7 areas: (1) purpose of sedation, benefits and disadvantages of sedation during gastrointestinal endoscopy; (2) pre-procedural assessment, preparation and consent taking for sedation; (3) Efficacy and safety of drugs used in sedation; (4) the role of anaesthesiologist administered sedation during gastrointestinal endoscopy; (5) performance of sedation; (6) post-sedation care and discharge after sedation; and (7) training in sedation for gastrointestinal endoscopy for non-anaesthesiologists.
CONCLUSION
These recommendations serve to guide clinical practice during sedation for gastrointestinal endoscopy by non-anaesthesiologists in the hospital setting.
Conscious Sedation
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Endoscopy, Gastrointestinal
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Hospitals
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Humans
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Hypnotics and Sedatives
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Singapore
6.Impact of COVID-19 on Endoscopy Training: Perspectives from a Global Survey of Program Directors and Endoscopy Trainers
Shivakumar VIGNESH ; Amna Subhan BUTT ; Mohamed ALBORAIE ; Bruno Costa MARTINS ; Alejandro PISCOYA ; Quang Trung TRAN ; Damien Tan Meng YEW ; Shahriyar GHAZANFAR ; Pezhman ALAVINEJAD ; Edna KAMAU ; Ajay M VERMA ; Robin B MENDELSOHN ; Christopher KHOR ; Alan MOSS ; David Wei Chih LIAO ; Christopher S HUANG ; Franklin C TSAI
Clinical Endoscopy 2021;54(5):678-687
Background/Aims:
The coronavirus disease of 2019 (COVID-19) pandemic has impacted the training of medical trainees internationally. The aim of this study was to assess the global impact of COVID-19 on endoscopy training from the perspective of endoscopy trainers and to identify strategies implemented to mitigate the impact on trainee education.
Methods:
Teaching faculty of gastroenterology (GI) training programs globally were invited to complete a 36-question web-based survey to report the characteristics of their training programs and the impact of COVID-19 on various aspects of endoscopy training, including what factors decisions were based on.
Results:
The survey response rate was 52.6% (305 out of 580 individuals); 92.8% reported a negative impact on endoscopy training, with suspension of elective procedures (77.1%) being the most detrimental factor. Geographic variations were noted, with European programs reporting the lowest percentage of trainee participation in procedures. A higher proportion of trainees in the Americas were allowed to continue performing procedures, and trainers from the Americas reported receiving the greatest support for endoscopy teaching.
Conclusions
This study demonstrated that the COVID-19 pandemic has had a significant negative impact on GI endoscopy training internationally, as reported by endoscopy trainers. Focus-optimizing endoscopy training and assessment of competencies are necessary to ensure adequate endoscopy training.
7.Impact of COVID-19 on Endoscopy Training: Perspectives from a Global Survey of Program Directors and Endoscopy Trainers
Shivakumar VIGNESH ; Amna Subhan BUTT ; Mohamed ALBORAIE ; Bruno Costa MARTINS ; Alejandro PISCOYA ; Quang Trung TRAN ; Damien Tan Meng YEW ; Shahriyar GHAZANFAR ; Pezhman ALAVINEJAD ; Edna KAMAU ; Ajay M VERMA ; Robin B MENDELSOHN ; Christopher KHOR ; Alan MOSS ; David Wei Chih LIAO ; Christopher S HUANG ; Franklin C TSAI
Clinical Endoscopy 2021;54(5):678-687
Background/Aims:
The coronavirus disease of 2019 (COVID-19) pandemic has impacted the training of medical trainees internationally. The aim of this study was to assess the global impact of COVID-19 on endoscopy training from the perspective of endoscopy trainers and to identify strategies implemented to mitigate the impact on trainee education.
Methods:
Teaching faculty of gastroenterology (GI) training programs globally were invited to complete a 36-question web-based survey to report the characteristics of their training programs and the impact of COVID-19 on various aspects of endoscopy training, including what factors decisions were based on.
Results:
The survey response rate was 52.6% (305 out of 580 individuals); 92.8% reported a negative impact on endoscopy training, with suspension of elective procedures (77.1%) being the most detrimental factor. Geographic variations were noted, with European programs reporting the lowest percentage of trainee participation in procedures. A higher proportion of trainees in the Americas were allowed to continue performing procedures, and trainers from the Americas reported receiving the greatest support for endoscopy teaching.
Conclusions
This study demonstrated that the COVID-19 pandemic has had a significant negative impact on GI endoscopy training internationally, as reported by endoscopy trainers. Focus-optimizing endoscopy training and assessment of competencies are necessary to ensure adequate endoscopy training.