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Stuart Amateau

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https://www.readbyqxmd.com/read/29644909/advanced-ercp-techniques-for-the-extraction-of-complex-biliary-stones-a-single-referral-center-s-12-year-experience
#1
Nicholas G Brown, Joel Camilo, Eric Nordstrom, Roy D Yen, Norio Fukami, Brian C Brauer, Sachin Wani, Stuart K Amateau, Augustin R Attwell, Raj J Shah
OBJECTIVES: Advanced ERCP techniques (AETs) for difficult biliary stones include peroral cholangioscopy (POC) with electrohydraulic/laser lithotripsy (EHL/LL), endoscopic papillary large balloon dilation (EPLBD) and mechanical lithotripsy (ML). We assess the efficacy of AETs. METHODS: A retrospective query for AETs. PRIMARY OUTCOME: Complete duct clearance. Secondary outcome: Complete duct clearance by technique. Statistical Analysis version 9...
April 12, 2018: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/29519334/avoidance-recognition-and-management-of-complications-associated-with-lumen-apposing-metal-stents
#2
REVIEW
Stuart K Amateau, Martin L Freeman
The lumen-apposing metal stent has evolved endoscopic transluminal therapies, although it has potential complications, including maldeployment, bleeding, perforation, migration, and several risks specific to necrotizing pancreatitis. Careful planning and technique mitigate these inherent risks of lumen-apposing metal sent deployment; however, setbacks occur even in the most experienced of hands. Therefore, early recognition and management of these complications are critical to alleviating morbidity and avoiding mortality...
April 2018: Gastrointestinal Endoscopy Clinics of North America
https://www.readbyqxmd.com/read/29500673/eus-guided-endoscopic-gastrointestinal-anastomosis-with-lumen-apposing-metal-stent-feasibility-safety-and-efficacy
#3
Stuart K Amateau, Chin Hong Lim, Nicholas M McDonald, Mustafa Arain, Sayeed Ikramuddin, Daniel B Leslie
Traditionally, restoration of normal bowel continuity after resection and bypass of a diseased or obstructed gastrointestinal tract can only be achieved through surgery, which can be technically challenging and comes with a risk of adverse events. Here, we describe our institutions' experience with endoscopic-guided gastroenterostomy or enteroenterostomy with lumen-apposing metal stent (LAMS) from March 2015 to August 2016. Ten patients had gastrogastrostomy (gastric pouch to gastric remnant) and three patients had jejunogastrostomy (Roux limb to gastric remnant) for the reversal of Roux-en-Y bariatric surgery...
March 2, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29398926/a-randomized-controlled-trial-comparing-the-depth-of-maximal-insertion-between-anterograde-single-balloon-versus-spiral-enteroscopy
#4
Robert A Moran, Sindhu Barola, Joanna K Law, Stuart K Amateau, Daniil Rolshud, Erin Corless, Vandhana Kiswani, Vikesh K Singh, Anthony N Kalloo, Mouen A Khashab, Anne Marie Lennon, Patrick I Okolo, Vivek Kumbhari
Background: Three device-assisted deep endoscopic platforms presently exist and are available for clinical use: double-balloon enteroscopy, single-balloon enteroscopy (SBE), and spiral enteroscopy (SE). In a retrospective study, SE was associated with a greater depth of maximal insertion (DMI) with similar diagnostic yields and procedure time as compared with SBE. Aims: This was a prospective, randomized comparison of SE and SBE with respect to DMI, diagnostic yield, procedure time, and rate of adverse events...
2018: Clinical Medicine Insights. Gastroenterology
https://www.readbyqxmd.com/read/29344563/the-use-of-fully-covered-self-expanding-metallic-stents-for-intraprocedural-management-of-post-sphincterotomy-perforations-a-single-center-study-with-video
#5
Guru Trikudanathan, Patrick Hoversten, Mustafa A Arain, Rajeev Attam, Martin L Freeman, Stuart K Amateau
Background and study aims : Management of post-sphincterotomy perforations is variable, with some patients managed conservatively and other requiring surgery. Fully-covered self-expanding metal stents (FCSEMs) have been used in the past, but data is limited. The aim of this study was to report the clinical characteristics and outcomes following placement of anchored FCSEMSs for the immediate management of post-sphincterotomy perforation. Patients and methods : All patients undergoing an ERCP procedure between June 2011 and December 2015 at our institution were reviewed for post-sphincterotomy perforation...
January 2018: Endoscopy International Open
https://www.readbyqxmd.com/read/29329474/immediate-retrieval-of-a-maldeployed-lumen-apposing-metal-stent-from-a-walled-off-cavity
#6
Nabeel Azeem, Martin L Freeman, Stuart K Amateau
No abstract text is available yet for this article.
March 2018: Endoscopy
https://www.readbyqxmd.com/read/29320750/the-many-faces-of-intestinal-tract-gastric-heterotopia-a-series-of-four-cases-highlighting-clinical-and-pathological-heterogeneity
#7
Aqsa Nasir, Stuart K Amateau, Sabina Khan, Ross W Simpson, Dale C Snover, Khalid Amin
Gastric heterotopia of the intestinal tract can have a diverse clinicopathologic presentation, resulting in a diagnostic dilemma. We present a series of four cases, two male and two female patients with age range of 31-82 years, found in the duodenum, jejunum, and transverse colon. The most common and rather unusual clinical presentation was iron deficiency anemia, seen in three cases, while one patient presented with abdominal pain. Endoscopically, two cases were visualized as pedunculated polyps and two as sessile/plaque-like lesions...
April 2018: Human Pathology
https://www.readbyqxmd.com/read/28992638/percutaneous-cecostomy-with-fully-covered-self-expandable-metal-stent-for-initial-management-of-severe-malignant-colon-obstruction
#8
Chin Hong Lim, Nicholas M McDonald, Martin L Freeman, Stuart K Amateau
No abstract text is available yet for this article.
December 2017: Endoscopy
https://www.readbyqxmd.com/read/28858292/endoscopic-drainage-of-50-of-liver-in-malignant-hilar-biliary-obstruction-using-metallic-or-fenestrated-plastic-stents
#9
Tossapol Kerdsirichairat, Mustafa A Arain, Rajeev Attam, Brooke Glessing, Yan Bakman, Stuart K Amateau, Martin L Freeman
OBJECTIVES: Endoscopic drainage of complex hilar tumors has generally resulted in poor outcomes. Drainage of >50% of liver volume has been proposed as optimal, but not evaluated using long multifenestrated plastic stents (MFPS) or self-expanding metal stents (SEMS). We evaluated outcomes of endoscopic drainage of malignant hilar strictures using optimal strategy and stents, and determined factors associated with stent patency, survival, and complications. METHODS: Cross-sectional study was conducted at an academic center over 5 years...
August 31, 2017: Clinical and Translational Gastroenterology
https://www.readbyqxmd.com/read/28488091/outcomes-of-endoscopic-retrograde-cholangiopancreatography-ercp-and-sphincterotomy-for-suspected-sphincter-of-oddi-dysfunction-sod-post-roux-en-y-gastric-bypass
#10
Chin Hong Lim, Cyrus Jahansouz, Martin L Freeman, Daniel B Leslie, Sayeed Ikramuddin, Stuart K Amateau
BACKGROUND: Sphincter of Oddi dysfunction (SOD) is thought to be a cause of chronic abdominal pain post Roux-en-Y gastric bypass, and current practice of performing endoscopic retrograde cholangiopancreatography (ERCP) with or without sphincterotomy is not supported by evidence. In addition to the complexity and risks of the procedure in patients with Roux-en-Y anatomy, the outcomes are uncertain and debatable. We performed a retrospective review and analysis of post-gastric bypass patients who had undergone ERCP with sphincterotomy to determine the effectiveness in patients with suspected SOD...
October 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28025154/increasing-number-of-passes-beyond-4-does-not-increase-sensitivity-of-detection-of-pancreatic-malignancy-by-endoscopic-ultrasound-guided-fine-needle-aspiration
#11
RANDOMIZED CONTROLLED TRIAL
Mehdi Mohamadnejad, Daniel Mullady, Dayna S Early, Brian Collins, Carrie Marshall, Sharon Sams, Roy Yen, Mona Rizeq, Maria Romanas, Samia Nawaz, Ozlem Ulusarac, Thomas Hollander, Robert H Wilson, Violette C Simon, Vladimir Kushnir, Stuart K Amateau, Brian C Brauer, Srinivas Gaddam, Riad R Azar, Srinadh Komanduri, Raj Shah, Ananya Das, Steven Edmundowicz, V Raman Muthusamy, Amit Rastogi, Sachin Wani
BACKGROUND & AIMS: It is not clear exactly how many passes are required to determine whether pancreatic masses are malignant using endoscopic ultrasound-guided fine-needle aspiration (EUS-FNA). We aimed to define the per-pass diagnostic yield of EUS-FNA for establishing the malignancy of a pancreatic mass, and identify factors associated with detection of malignancies. METHODS: In a prospective study, 239 patients with solid pancreatic masses were randomly assigned to groups that underwent EUS-FNA, with the number of passes determined by an on-site cytopathology evaluation or set at 7 passes, at 3 tertiary referral centers...
July 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27866300/endoscopic-management-of-biliary-leaks-and-strictures-after-living-donor-liver-transplantation-optimizing-techniques-for-successful-management
#12
Saleh Elwir, Julie Thompson, Stuart K Amateau, Guru Trikudanathan, Rajeev Attam, Mohamed Hassan, Raja Kandaswamy, Timothy Pruett, John Lake, Srinath Chinnakotla, Martin L Freeman, Mustafa A Arain
BACKGROUND AND AIMS: Biliary complications (BCs) occur in up to 40% of living donor liver transplant (LDLT) recipients. The aim of this study was to evaluate the efficacy of endoscopic therapy in the management of LDLT-related BCs. METHODS: A retrospective study of 100 LDLT recipients at a single transplant center over a 9-year period was conducted. BC was defined as a biliary leak and/or a stricture. Patient records were used to identify time to diagnosis, type of intervention, and time to resolution...
January 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/27836330/evaluation-of-rosemont-criteria-for-non-calcific-chronic-pancreatitis-nccp-based-on-histopathology-a-retrospective-study
#13
Guru Trikudanathan, Satish Munigala, Usman Barlass, Ahmad Malli, Yusheng Han, Miroslav Sekulic, Melena Bellin, Srinath Chinnakotla, Ty Dunn, Timothy Pruett, Gregory Beilman, Jose-Vega Peralta, Mustafa Arain, Stuart Amateau, Shawn Mallery, Martin L Freeman, Rajeev Attam
BACKGROUND: Rosemont classification for chronic pancreatitis has not been evaluated specifically in non-calcific chronic pancreatitis (NCCP) patients and to this date, it has not been correlated with the gold standard namely histopathology. OBJECTIVE: To assess the correlation of EUS Rosemont criteria for NCCP with histopathology from surgical specimens and evaluate the impact of age, sex, BMI, smoking and alcohol on Rosemont classification. METHODS: Adult patients undergoing TPIAT for NCCP between July 2009 and January 2013 were identified from our institutional database...
January 2017: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
https://www.readbyqxmd.com/read/27694871/palliative-decompression-of-a-symptomatic-mucinous-adenocarcinoma-of-the-pancreas
#14
Nicholas M McDonald, Mustafa A Arain, James S Mallery, Martin L Freeman, Stuart K Amateau
No abstract text is available yet for this article.
October 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27694865/treatment-of-diffuse-esophageal-squamous-papillomatosis-with-cryotherapy
#15
Nicholas M McDonald, Stuart K Amateau
No abstract text is available yet for this article.
October 2016: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/27573512/endoscopic-management-of-vertical-banded-gastroplasty-stricture-feasibility-safety-and-efficacy
#16
Chin Hong Lim, Stuart K Amateau, Sayeed Ikramuddin, Daniel B Leslie
BACKGROUND: Although vertical banded gastroplasty (VBG) is no longer performed in the USA, due to its popularity in 1980s, many patients still possess this anatomy with its inherent complications. The stomal stenosis secondary to tight ring or mesh is traditionally treated with surgical removal of the silastic ring or a complex revision, which was hampered by complications, technical complexity, and invasiveness. We described our experience of endoscopic management of this complex problem and the early outcomes...
November 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27556103/interobserver-agreement-among-cytopathologists-in-the-evaluation-of-pancreatic-endoscopic-ultrasound-guided-fine-needle-aspiration-cytology-specimens
#17
Rawad Mounzer, Roy Yen, Carrie Marshall, Sharon Sams, Sanjana Mehrotra, Mohamed Sherif Said, Joshua C Obuch, Brian Brauer, Augustin Attwell, Norio Fukami, Raj Shah, Stuart Amateau, Matthew Hall, Lindsay Hosford, Robert Wilson, Amit Rastogi, Sachin Wani
BACKGROUND AND AIMS: Endoscopic ultrasound with fine needle aspiration (EUS-FNA) has become the standard of care in the evaluation of solid pancreatic lesions. Limited data exist on interobserver agreement (IOA) among cytopathologists in assessing solid pancreatic EUS-FNA specimens. This study aimed to evaluate IOA among cytopathologists in assessing EUS-FNA cytology specimens of solid pancreatic lesions using a novel standardized scoring system and to assess individual clinical and cytologic predictors of IOA...
July 2016: Endoscopy International Open
https://www.readbyqxmd.com/read/27327848/videoconferencing-for-multidisciplinary-evaluation-in-single-session-cholecystectomy-and-ercp
#18
Nicholas M McDonald, Kaysie L Banton, Sayeed Ikramuddin, Martin L Freeman, Stuart K Amateau
No abstract text is available yet for this article.
December 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27032882/dual-device-cannulation-of-an-intradiverticular-minor-papilla
#19
Stuart K Amateau, Martin L Freeman
No abstract text is available yet for this article.
September 2016: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27008565/novel-endoscopic-management-of-a-pancreatico-biliary-limb-obstruction-by-the-creation-of-an-entero-enterostomy-following-roux-en-y-gastric-bypass
#20
Chin Hong Lim, Sayeed Ikramuddin, Daniel B Leslie, Mustafa A Arain, Stuart K Amateau
No abstract text is available yet for this article.
2016: Endoscopy
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