Marvin Ryou

Marvin Ryou

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Marvin Ryou

Marvin Ryou

Publications by authors named "Marvin Ryou"

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Initial clinical experience of a steerable access device for EUS-guided biliary drainage.

Gastrointest Endosc 2019 Aug 10. Epub 2019 Aug 10.

Division of Gastroenterology and Hepatology, Johns Hopkins Medical Institutions Sheikh Zayed Building 1800 Orleans Street, Suite 7125G Baltimore, MD 21287. Electronic address:

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http://dx.doi.org/10.1016/j.gie.2019.07.035DOI Listing
August 2019

Combination therapy monotherapy for EUS-guided management of gastric varices: A systematic review and meta-analysis.

Endosc Ultrasound 2019 Aug 9. Epub 2019 Aug 9.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

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http://dx.doi.org/10.4103/eus.eus_37_19DOI Listing
August 2019

TEMPORARY REMOVAL: Clinical outcomes of EUS-guided coil embolization versus traditional cyanoacrylate injection for treatment of gastric varices (with video).

Gastrointest Endosc 2019 Aug 23. Epub 2019 Aug 23.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115.

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http://dx.doi.org/10.1016/j.gie.2019.08.021DOI Listing
August 2019

Gastric access temporary for endoscopy (GATE): a proposed algorithm for EUS-directed transgastric ERCP in gastric bypass patients.

Surg Endosc 2019 Jun 25;33(6):2024-2033. Epub 2019 Feb 25.

Department of Gastroenterology, Brigham and Women's Hospital, 75 Francis St, Boston, MA, 02115, USA.

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http://dx.doi.org/10.1007/s00464-019-06715-zDOI Listing
June 2019

Duodenal endoscopic submucosal dissection and sutured defect closure across a lumen-apposing metal stent.

VideoGIE 2019 Apr 20;4(4):172-175. Epub 2018 Sep 20.

Developmental Endoscopy Laboratory, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.vgie.2018.08.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6476406PMC
April 2019

Successful EUS-guided treatment of gastric varices with coil embolization and injection of absorbable gelatin sponge.

VideoGIE 2019 Apr 20;4(4):154-156. Epub 2018 Sep 20.

Developmental Endoscopy Laboratory, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.vgie.2018.08.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6477168PMC
April 2019

Choosing the right through-the-scope clip: a rigorous comparison of rotatability, whip, open/close precision, and closure strength (with videos).

Gastrointest Endosc 2019 01 27;89(1):77-86.e1. Epub 2018 Jul 27.

Brigham and Women's Hospital, Division of Gastroenterology, Hepatology, and Endoscopy, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA.

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https://linkinghub.elsevier.com/retrieve/pii/S00165107183286
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http://dx.doi.org/10.1016/j.gie.2018.07.025DOI Listing
January 2019

Multicenter Implementation of a New Electronic Medical Record System Leads to Longer Procedure Times and Poor Staff Satisfaction.

Clin Endosc 2019 Jan 21;52(1):87-89. Epub 2018 Aug 21.

Division of Gastroenterology, Hepatology & Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

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http://dx.doi.org/10.5946/ce.2018.080DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6370922PMC
January 2019

Evolving techniques for endoscopic retrograde cholangiopancreatography in gastric bypass patients.

Curr Opin Gastroenterol 2018 11;34(6):444-450

Harvard Medical School.

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http://dx.doi.org/10.1097/MOG.0000000000000474DOI Listing
November 2018

Long-term successful closure of a percutaneous intragastric trocar tract with crossing full-thickness sutures in a porcine model.

Endoscopy 2018 06 8;50(6):626-630. Epub 2017 Dec 8.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, United States.

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http://dx.doi.org/10.1055/s-0043-122498DOI Listing
June 2018

A Prospective Blinded Study of Endoscopic Ultrasound Elastography in Liver Disease: Towards a Virtual Biopsy.

Clin Endosc 2018 Mar 23;51(2):181-185. Epub 2018 Mar 23.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, MA, USA.

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http://dx.doi.org/10.5946/ce.2017.095DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5903081PMC
March 2018

ASGE EndoVators Summit: Defining the Role and Value of Endoscopic Therapies in Obesity Management.

J Gastrointest Surg 2018 02 14;22(2):376-387. Epub 2017 Nov 14.

University of Washington, Digestive Health Specialists, Tacoma, WA, USA.

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http://dx.doi.org/10.1007/s11605-017-3609-5DOI Listing
February 2018

ASGE EndoVators Summit: defining the role and value of endoscopic therapies in obesity management.

Surg Endosc 2018 01 14;32(1):1-13. Epub 2017 Nov 14.

University of Washington, Digestive Health Specialists, Tacoma, WA, USA.

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http://dx.doi.org/10.1007/s00464-017-5934-xDOI Listing
January 2018

ASGE EndoVators Summit: Defining the Role and Value of Endoscopic Therapies in Obesity Management.

Obes Surg 2018 01;28(1):3-14

University of Washington, Digestive Health Specialists, Tacoma, WA, USA.

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http://dx.doi.org/10.1007/s11695-017-2948-3DOI Listing
January 2018

Advances in the endoscopic management of gastric outflow disorders.

Curr Opin Gastroenterol 2017 Nov;33(6):455-460

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1097/MOG.0000000000000403DOI Listing
November 2017

Endoscopic Ultrasound-Guided Direct Portal Pressure Measurement Using a Digital Pressure Wire with Real-Time Remote Display: A Survival Study.

J Laparoendosc Adv Surg Tech A 2017 Oct 26;27(10):1051-1054. Epub 2017 Apr 26.

1 Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital , Boston, Massachusetts.

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http://dx.doi.org/10.1089/lap.2017.0032DOI Listing
October 2017

A Novel Hands-Free Abdominal Compression Device for Colonoscopy Significantly Decreases Cecal Intubation Time: A Prospective Single-Blinded Pilot Study.

J Laparoendosc Adv Surg Tech A 2017 Jun 4;27(6):564-570. Epub 2017 Apr 4.

1 Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital , Boston, Massachusetts.

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http://dx.doi.org/10.1089/lap.2016.0649DOI Listing
June 2017

Optimizing EUS-guided liver biopsy sampling: comprehensive assessment of needle types and tissue acquisition techniques.

Gastrointest Endosc 2017 Feb 13;85(2):419-426. Epub 2016 Aug 13.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2016.07.065DOI Listing
February 2017

EUS-guided intrahepatic portosystemic shunt with direct portal pressure measurements: a novel alternative to transjugular intrahepatic portosystemic shunting.

Gastrointest Endosc 2017 Jan 26;85(1):243-247. Epub 2016 Jul 26.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2016.07.041DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5287288PMC
January 2017

Making the Connection.

N Engl J Med 2017 01;376(4):e5

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http://dx.doi.org/10.1056/NEJMimc1601141DOI Listing
January 2017

A standardized method for endoscopic necrosectomy improves complication and mortality rates.

Pancreatology 2016 Jan-Feb;16(1):66-72. Epub 2015 Dec 22.

Division of Gastroenterology, Hepatology, and Nutrition, Ohio State University Medical Center, 288 Office Tower, 395 W. 12th Avenue, Columbus, OH 43210, USA. Electronic address:

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http://dx.doi.org/10.1016/j.pan.2015.12.001DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4762002PMC
December 2016

Intrahepatic portosystemic shunt: an endoscopic approach.

Gastrointest Endosc 2016 Nov 15;84(5):855-856. Epub 2016 Jun 15.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5065751PMC
http://dx.doi.org/10.1016/j.gie.2016.06.008DOI Listing
November 2016

Endoscopic treatment of obesity.

Curr Opin Gastroenterol 2016 11;32(6):487-491

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1097/MOG.0000000000000307DOI Listing
November 2016

Minimally invasive entero-enteral dual-path bypass using self-assembling magnets.

Surg Endosc 2016 10 19;30(10):4533-8. Epub 2016 Feb 19.

Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.

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http://dx.doi.org/10.1007/s00464-016-4789-xDOI Listing
October 2016

Prospective evaluation of a simplified narrowband imaging scoring system for a differential diagnosis of colorectal lesions.

Surg Endosc 2016 08 5;30(8):3598-603. Epub 2015 Nov 5.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, 75 Francis St., Thorn 1404, Boston, MA, 02115, USA.

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http://dx.doi.org/10.1007/s00464-015-4660-5DOI Listing
August 2016

Autoimmune Pancreatitis Presenting as Multifocal Masses, Diagnosed on Ampullary Biopsy.

Pancreas 2016 07;45(6):e25-7

Division of Gastroenterology, Hepatology and Endoscopy Brigham and Women's Hospital Boston, MA Department of Pathology Brigham and Women's Hospital Boston, MA Department of Radiology Brigham and Women's Hospital Boston, MA Department of Surgery Brigham and Women's Hospital Boston, MA Division of Gastroenterology, Hepatology and Endoscopy Brigham and Women's Hospital Boston, MA.

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http://dx.doi.org/10.1097/MPA.0000000000000581DOI Listing
July 2016

Combined Mirizzi syndrome with Bouveret syndrome.

Gastrointest Endosc 2016 May 30;83(5):1034. Epub 2015 Oct 30.

Brigham and Women's Hospital, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2015.10.029DOI Listing
May 2016

Randomized Noninferiority Trial Comparing Diagnostic Yield of Cytopathologist-guided versus 7 passes for EUS-FNA of Pancreatic Masses.

Dig Endosc 2016 05 23;28(4):469-475. Epub 2015 Dec 23.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital and Harvard Medical School, Boston, MA.

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http://dx.doi.org/10.1111/den.12594DOI Listing
May 2016

Endoscopic intestinal bypass creation by using self-assembling magnets in a porcine model.

Gastrointest Endosc 2016 Apr 30;83(4):821-5. Epub 2015 Oct 30.

Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2015.10.023DOI Listing
April 2016

EUS-guided portal pressure measurement using a digital pressure wire with real-time remote display: a novel, minimally invasive technique for direct measurement in an animal model.

Gastrointest Endosc 2016 Apr 10;83(4):817-20. Epub 2015 Dec 10.

Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA; Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2015.11.038DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4849408PMC
April 2016

Acute and chronic duodenal perforations: endoscopic suturing for primary closure and pyloric exclusion.

Gastrointest Endosc 2016 Mar 18;83(3):661-2. Epub 2015 Sep 18.

Division of Gastroenterology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2015.09.006DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4762743PMC
March 2016

Facilitating endoscopic submucosal dissection: the suture-pulley method significantly improves procedure time and minimizes technical difficulty compared with conventional technique: an ex vivo study (with video).

Gastrointest Endosc 2014 Sep 27;80(3):495-502. Epub 2014 Mar 27.

Developmental Endoscopy, Division of Gastroenterology, Hepatology and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2014.01.050DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4426966PMC
September 2014

Single-session EUS-guided transgastric ERCP in the gastric bypass patient.

Gastrointest Endosc 2014 Sep 12;80(3):517. Epub 2014 Jul 12.

Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachussets, USA.

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http://dx.doi.org/10.1016/j.gie.2014.06.011DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5038594PMC
September 2014

A novel magnetic countertraction device for endoscopic submucosal dissection significantly reduces procedure time and minimizes technical difficulty.

Endoscopy 2014 May 26;46(5):422-5. Epub 2014 Feb 26.

Developmental Endoscopy, Division of Gastroenterology, Hepatology, and Endoscopy, Brigham and Women's Hospital, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1055/s-0034-1364940DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5019105PMC
May 2014

An ex vivo bacteriologic study comparing antiseptic techniques for natural orifice translumenal endoscopic surgery (NOTES) via the gastrointestinal tract.

Dig Dis Sci 2012 Aug 24;57(8):2130-6. Epub 2012 Mar 24.

Division of Gastroenterology, Brigham and Women's Hospital, 75 Francis St., Boston, MA 02115, USA.

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http://dx.doi.org/10.1007/s10620-012-2126-3DOI Listing
August 2012

Magnetic pancreaticobiliary stents and retrieval system: obviating the need for repeat endoscopy (with video).

Gastrointest Endosc 2012 Apr 5;75(4):888-892.e1. Epub 2012 Jan 5.

Division of Gastroenterology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.gie.2011.09.051DOI Listing
April 2012

Current status of endoluminal bariatric procedures for primary and revision indications.

Gastrointest Endosc Clin N Am 2011 Apr;21(2):315-33

Partners Combined Program, Division of Gastroenterology, Brigham and Women's Hospital, 75 Francis Street, Boston, MA 02115, USA.

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http://dx.doi.org/10.1016/j.giec.2011.02.004DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3460649PMC
April 2011

Endoscopic foreign body removal for treatment of chronic abdominal pain in patients after Roux-en-Y gastric bypass.

Surg Obes Relat Dis 2010 Sep-Oct;6(5):526-31. Epub 2010 Feb 19.

Division of Gastroenterology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.

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http://dx.doi.org/10.1016/j.soard.2010.02.035DOI Listing
February 2011

Smart Self-Assembling MagnetS for ENdoscopy (SAMSEN) for transoral endoscopic creation of immediate gastrojejunostomy (with video).

Gastrointest Endosc 2011 Feb 22;73(2):353-9. Epub 2010 Dec 22.

Department of Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.

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http://dx.doi.org/10.1016/j.gie.2010.10.024DOI Listing
February 2011

Pancreatic antegrade needle-knife (PANK) for treatment of symptomatic pancreatic duct obstruction in Whipple patients (with video).

Gastrointest Endosc 2010 Nov;72(5):1081-8

Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.

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http://dx.doi.org/10.1016/j.gie.2010.07.017DOI Listing
November 2010

A magnetic retrieval system for stents in the pancreaticobiliary tree.

IEEE Trans Biomed Eng 2010 Aug 17;57(8):2018-25. Epub 2010 May 17.

Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

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http://dx.doi.org/10.1109/TBME.2010.2045653DOI Listing
August 2010

Pilot study evaluating technical feasibility and early outcomes of second-generation endosurgical platform for treatment of weight regain after gastric bypass surgery.

Surg Obes Relat Dis 2009 Jul-Aug;5(4):450-4. Epub 2009 Apr 8.

Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA.

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http://dx.doi.org/10.1016/j.soard.2009.03.217DOI Listing
November 2009

Evaluation of a manually driven, multitasking platform for complex endoluminal and natural orifice transluminal endoscopic surgery applications (with video).

Gastrointest Endosc 2009 Jul 25;70(1):121-5. Epub 2009 Apr 25.

Division of Gastroenterology, Brigham & Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.

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http://dx.doi.org/10.1016/j.gie.2008.11.007DOI Listing
July 2009

Endoscopic therapy for GERD: does it have a future?

Curr Gastroenterol Rep 2008 Jun;10(3):215-21

Brigham & Women's Hospital, Division of Gastroenterology, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.

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June 2008

Evaluation of a novel access and closure device for NOTES applications: a transcolonic survival study in the porcine model (with video).

Gastrointest Endosc 2008 May;67(6):964-9

Division of Gastroenterology, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA.

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http://dx.doi.org/10.1016/j.gie.2007.12.047DOI Listing
May 2008

Techniques for transanal access to the peritoneal cavity.

Gastrointest Endosc Clin N Am 2008 Apr;18(2):245-60; viii

Division of Gastroenterology and Hepatology, Brigham and Women's Hospital, Harvard Medical School, 75 Francis Street, Boston, MA 02115, USA.

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http://dx.doi.org/10.1016/j.giec.2008.01.014DOI Listing
April 2008

Controlling gene expression in mycobacteria with anhydrotetracycline and Tet repressor.

Nucleic Acids Res 2005 Feb 1;33(2):e21. Epub 2005 Feb 1.

Department of Microbiology and Immunology, Weill Medical College of Cornell University New York, NY 10021, USA.

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https://academic.oup.com/nar/article-lookup/doi/10.1093/nar/
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http://dx.doi.org/10.1093/nar/gni013DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC548372PMC
February 2005

Student leadership in public health advocacy: lessons learned from the hepatitis B initiative.

Am J Public Health 2003 Aug;93(8):1250-2

Office of Disease Prevention and Health Promotion, US Department of Health and Human Services, Washington, DC, USA.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1447948PMC
http://dx.doi.org/10.2105/ajph.93.8.1250DOI Listing
August 2003