GI Insights

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Iris Wang, M.D. From symptom trackers to multidisciplinary app-based platforms, evidence-based digital therapeutics are expanding access to brain-gut behavioral care for patients with irritable bowel syndrome (IBS) and inflammatory bowel disease (IBD). Dr. Peter Buch sits down with Dr. Iris Wang to discuss the spectrum of available tools and explore strategies for aligning them with individual patient needs. Dr. Wang is an Associate Professor of Medicine and the Associate Program Director of the Gastroenterology Fellowship at the Mayo Clinic in Rochester, Minnesota.

Guest: Francis Farraye, MD Host: Peter Buch, MD, FACG, AGAF, FACP A 2025 update to the American College of Gastroenterology (ACG)'s guideline on preventive care in inflammatory bowel disease (IBD) includes key changes impacting vaccine recommendations, dermatologic screening, and care coordination. Dr. Peter Buch sits down with Dr. Francis Farraye, lead author of this guideline, to highlight what clinicians need to know. Dr. Farraye is a Professor of Medicine and the Director of the Inflammatory Bowel Disease Center at the Mayo Clinic in Jacksonville, Florida

Guest: Thomas DeLoughery, MD Host: Peter Buch, MD, FACG, AGAF, FACP Iron deficiency anemia is common in gastroenterology patients and is often underrecognized or suboptimally managed. That's why targeted treatment is essential to improve patient outcomes. In this expert-led discussion, Dr. Peter Buch and Dr. Thomas DeLoughery outline what gastroenterologists need to know about oral vs IV iron, absorption dynamics, and tailoring therapy for various patient populations. Dr. DeLoughery is a Professor of Medicine in the Division of Hematology and Oncology at Oregon Health and Science University in Portland.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Neena Abraham, MD, MS Knowing how to manage anticoagulants and antithrombotics during acute GI bleeding is essential in preventing avoidable complications, including thromboembolism and delayed hemostasis. Dr. Peter Buch sits down with Dr. Neena Abraham to discuss the latest recommendations from major GI and cardiology societies and explore practical strategies for anticoagulant reversal, triage criteria, and endoscopic hemostasis. Dr. Abraham is a Professor of Medicine and the Medical Director of the Cardiogastroenterology Clinic at the Mayo Clinic in Phoenix.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Michael Camilleri, MD GLP-1 receptor agonists are revolutionizing treatment for diabetes and obesity, but their impact on the gastrointestinal tract demands careful clinical attention. Dr. Peter Buch is joined by Dr. Michael Camilleri, Professor of Medicine at the Mayo Foundation for Medical Education and Research in Rochester, Minnesota, to discuss key findings on gastrointestinal side effects, procedural risks, and the impacts of GLP-1 receptor agonists on the fields of gastroenterology and hepatology.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Michael Camilleri, MD GLP-1 receptor agonists are revolutionizing treatment for diabetes and obesity, but their impact on the gastrointestinal tract demands careful clinical attention. Dr. Peter Buch is joined by Dr. Michael Camilleri, Professor of Medicine at the Mayo Foundation for Medical Education and Research in Rochester, Minnesota, to discuss key findings on gastrointestinal side effects, procedural risks, and the impacts of GLP-1 receptor agonists on the fields of gastroenterology and hepatology.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Ashwani K. Singal MD, MS, FACG, FAASLD, AGAF Sarcopenia and poor nutrition are often silent threats in chronic liver disease, yet they drastically impact outcomes. Joining Dr. Peter Buch to discuss strategies for recognizing and addressing malnutrition early to improve long-term liver health is Dr. Ashwani Singal. Dr. Singal is a Professor of Medicine at the University of Louisville School of Medicine.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Ashwani K. Singal MD, MS, FACG, FAASLD, AGAF Sarcopenia and poor nutrition are often silent threats in chronic liver disease, yet they drastically impact outcomes. Joining Dr. Peter Buch to discuss strategies for recognizing and addressing malnutrition early to improve long-term liver health is Dr. Ashwani Singal. Dr. Singal is a Professor of Medicine at the University of Louisville School of Medicine.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: David Fudman, MD As the advanced treatment landscape for inflammatory bowel disease continues to expand, selecting the right therapies has become more complex, with efficacy, safety, patient preferences, disease phenotypes, and more as factors to consider. Learn how to effectively navigate these therapeutic options for ulcerative colitis and Crohn's disease with Dr. Peter Buch and Dr. David Fudman, Assistant Professor and Director of Inflammatory Bowel Disease Clinics at the University of Texas Southwestern Medical Center.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: David Fudman, MD As the advanced treatment landscape for inflammatory bowel disease continues to expand, selecting the right therapies has become more complex, with efficacy, safety, patient preferences, disease phenotypes, and more as factors to consider. Learn how to effectively navigate these therapeutic options for ulcerative colitis and Crohn's disease with Dr. Peter Buch and Dr. David Fudman, Assistant Professor and Director of Inflammatory Bowel Disease Clinics at the University of Texas Southwestern Medical Center.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Stefan Holubar, MD, MS When are ostomies necessary in patients with inflammatory bowel disease? Join Dr. Peter Buch and Dr. Stefan Holubar, Director of Research at the IBD Surgery Section at the Cleveland Clinic, as they explore key surgical considerations for both ulcerative colitis and Crohn's disease, including when to consider temporary versus permanent ileostomies, how to manage complications like anastomotic leaks, and what factors influence the decision to delay or avoid ileal pouch creation.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Stefan Holubar, MD, MS When are ostomies necessary in patients with inflammatory bowel disease? Join Dr. Peter Buch and Dr. Stefan Holubar, Director of Research at the IBD Surgery Section at the Cleveland Clinic, as they explore key surgical considerations for both ulcerative colitis and Crohn's disease, including when to consider temporary versus permanent ileostomies, how to manage complications like anastomotic leaks, and what factors influence the decision to delay or avoid ileal pouch creation.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Mark Benson, MD Colonic perforations during colonoscopy are rare, but when they occur, taking swift and informed action is critical, particularly to avoid surgical intervention. Joining Dr. Peter Buch to offer his insights on perforation prevention, risk-reduction techniques, and repair strategies is Dr. Mark Benson, an advanced endoscopist and Associate Professor in the Division of Gastroenterology and Hepatology at the University of Wisconsin School of Medicine.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Mark Benson, MD Colonic perforations during colonoscopy are rare, but when they occur, taking swift and informed action is critical, particularly to avoid surgical intervention. Joining Dr. Peter Buch to offer his insights on perforation prevention, risk-reduction techniques, and repair strategies is Dr. Mark Benson, an advanced endoscopist and Associate Professor in the Division of Gastroenterology and Hepatology at the University of Wisconsin School of Medicine.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: J. Andy Tau, MD Topical hemostatic agents play a key role in managing complex bleeding cases, but there's a lot to keep in mind when selecting which agent to use, like their mechanism and efficacy. Joining Dr. Peter Buch to share top considerations and best practices for using topical hemostatic agents is Dr. J Andy Tau, a board-certified gastroenterologist at Austin Gastroenterology in Texas.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: J. Andy Tau, MD Topical hemostatic agents play a key role in managing complex bleeding cases, but there's a lot to keep in mind when selecting which agent to use, like their mechanism and efficacy. Joining Dr. Peter Buch to share top considerations and best practices for using topical hemostatic agents is Dr. J Andy Tau, a board-certified gastroenterologist at Austin Gastroenterology in Texas.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Aasma Shaukat, MD, MPH While fecal immunochemical testing and multitarget stool DNA testing are commonly used to screen for colon cancer, screening rates remain low throughout the United States. With the introduction of blood-based testing modalities, noninvasive colon cancer screening is becoming more accessible than ever. Join host Dr. Peter Buch and Dr. Aasma Shaukat as they discuss the effectiveness of current and emerging methods as well as best practices for screening patients. Dr. Shaukat is the Robert M. and Mary H. Glickman Professor of Medicine at the NYU Grossman School of Medicine and the Co-Director of Translational Research, Education, and Careers and the Director of Outcomes Research in the Division of Gastroenterology and Hepatology at NYU.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Aasma Shaukat, MD, MPH While fecal immunochemical testing and multitarget stool DNA testing are commonly used to screen for colon cancer, screening rates remain low throughout the United States. With the introduction of blood-based testing modalities, noninvasive colon cancer screening is becoming more accessible than ever. Join host Dr. Peter Buch and Dr. Aasma Shaukat as they discuss the effectiveness of current and emerging methods as well as best practices for screening patients. Dr. Shaukat is the Robert M. and Mary H. Glickman Professor of Medicine at the NYU Grossman School of Medicine and the Co-Director of Translational Research, Education, and Careers and the Director of Outcomes Research in the Division of Gastroenterology and Hepatology at NYU.

Guest: Sara Horst, MD, MPH, FACG While inflammatory bowel disease (IBD) does not typically cause significant problems in pregnancy, it's still essential to discuss potential impacts with patients and monitor them closely. Dr. Sara Horst, a Professor of Medicine at Vanderbilt University Medical Center, joins GI Insights to discuss important considerations for pregnant patients with IBD.

Guest: Elisa K. Boden, MD For many patients with Crohn's disease, surgery is necessary due to complications like strictures and fistulas. Dr. Elisa Boden explores risk factors and potential complications, which she spoke about at the 2025 Crohn's and Colitis Congress. Dr. Boden is an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology at Oregon Health and Science University.

Guest: Shalini Prasad, PhD Guest: Sriram Muthukumar, PhD Host: Charles Turck, PharmD, BCPS, BCCCP With the constant ups and downs of inflammatory bowel disease (IBD), consistent monitoring can help provide patient-centric care. Dr. Shalini Prasad and Dr. Sriram Muthukumar, co-founders of EnLiSense, join GI Insights to discuss the wearable device they developed to track inflammation markers in IBD patients. Dr. Prasad is the Head of the Department of Bioengineering at the University of Texas at Dallas, and Dr. Muthukumar is the CEO of EnLiSense.

Guest: Elisa K. Boden, MD For patients with Crohn's disease who require surgery, a variety of risk factors are involved in postoperative recovery and disease control. Learn how prehabilitation programs and lifestyle modifications can reduce complications during and after surgery with Dr. Elisa Boden, an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology at Oregon Health and Science University.

Guest: Shalini Prasad, PhD Guest: Sriram Muthukumar, PhD Host: Charles Turck, PharmD, BCPS, BCCCP With the constant ups and downs of inflammatory bowel disease (IBD), consistent monitoring can help provide patient-centric care. Dr. Shalini Prasad and Dr. Sriram Muthukumar, co-founders of EnLiSense, join GI Insights to discuss the wearable device they developed to track inflammation markers in IBD patients. Dr. Prasad is the Head of the Department of Bioengineering at the University of Texas at Dallas, and Dr. Muthukumar is the CEO of EnLiSense.

Guest: Elisa K. Boden, MD For patients with Crohn's disease who require surgery, a variety of risk factors are involved in postoperative recovery and disease control. Learn how prehabilitation programs and lifestyle modifications can reduce complications during and after surgery with Dr. Elisa Boden, an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology at Oregon Health and Science University.

Guest: Elisa K. Boden, MD For many patients with Crohn's disease, surgery is necessary due to complications like strictures and fistulas. Dr. Elisa Boden explores risk factors and potential complications, which she spoke about at the 2025 Crohn's and Colitis Congress. Dr. Boden is an Associate Professor of Medicine in the Division of Gastroenterology and Hepatology at Oregon Health and Science University.

Guest: Sara Horst, MD, MPH, FACG While inflammatory bowel disease (IBD) does not typically cause significant problems in pregnancy, it's still essential to discuss potential impacts with patients and monitor them closely. Dr. Sara Horst, a Professor of Medicine at Vanderbilt University Medical Center, joins GI Insights to discuss important considerations for pregnant patients with IBD.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: William Chey, MD Recent changes to the American College of Gastroenterology's guidelines on H. pylori treatment provide recommendations for antibiotic susceptibility and optimal patient management. Dr. Peter Buch sits down with the lead author of these guidelines, Dr. William Chey, to learn more about implications for clinical practice. Dr. Chey is the Chief of the Division of Gastroenterology and Hepatology, the H. Marvin Pollard Professor of Gastroenterology, and a Professor of Nutrition Sciences at the University of Michigan.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Vivek Kaul, MD The American Society for Gastrointestinal Endoscopy (ASGE) recently released a new guideline on when to use endoscopic submucosal dissection (ESD) and endoscopic mucosal resection (EMR) in managing early esophageal and gastric cancers. To learn more about when to use each approach, Dr. Peter Buch sits down with guideline co-author Dr. Vivek Kaul. Dr. Kaul is also the Segal-Watson Professor of Medicine at the University of Rochester Medical Center in New York.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: William Chey, MD Recent changes to the American College of Gastroenterology's guidelines on H. pylori treatment provide recommendations for antibiotic susceptibility and optimal patient management. Dr. Peter Buch sits down with the lead author of these guidelines, Dr. William Chey, to learn more about implications for clinical practice. Dr. Chey is the Chief of the Division of Gastroenterology and Hepatology, the H. Marvin Pollard Professor of Gastroenterology, and a Professor of Nutrition Sciences at the University of Michigan.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Vivek Kaul, MD The American Society for Gastrointestinal Endoscopy (ASGE) recently released a new guideline on when to use endoscopic submucosal dissection (ESD) and endoscopic mucosal resection (EMR) in managing early esophageal and gastric cancers. To learn more about when to use each approach, Dr. Peter Buch sits down with guideline co-author Dr. Vivek Kaul. Dr. Kaul is also the Segal-Watson Professor of Medicine at the University of Rochester Medical Center in New York.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: David P. Hudesman, MD Patients with inflammatory bowel disease (IBD) can experience a variety of extraintestinal manifestations (EIMs), including joint and eye pain and skin rashes. Dr. Peter Buch sits down with Dr. David Hudesman to discuss the impacts of these EIMs and explore best practices for patient management. Dr. Hudesman is a Professor of Medicine at NYU Grossman School of Medicine and Co-Director of NYU Langone's Inflammatory Bowel Disease Center.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: David P. Hudesman, MD With so many therapeutic options for Crohn's disease and ulcerative colitis, it can be challenging to determine which one best matches your patient's needs and preferences. Onset of action, risk of infections, disease location, and therapeutic goals are all key factors in the decision-making process. To learn more about these considerations, Dr. Peter Buch sits down with Dr. David Hudesman and explores the current therapeutic landscape for inflammatory bowel disease.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: David P. Hudesman, MD Patients with inflammatory bowel disease (IBD) can experience a variety of extraintestinal manifestations (EIMs), including joint and eye pain and skin rashes. Dr. Peter Buch sits down with Dr. David Hudesman to discuss the impacts of these EIMs and explore best practices for patient management. Dr. Hudesman is a Professor of Medicine at NYU Grossman School of Medicine and Co-Director of NYU Langone's Inflammatory Bowel Disease Center.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: David P. Hudesman, MD With so many therapeutic options for Crohn's disease and ulcerative colitis, it can be challenging to determine which one best matches your patient's needs and preferences. Onset of action, risk of infections, disease location, and therapeutic goals are all key factors in the decision-making process. To learn more about these considerations, Dr. Peter Buch sits down with Dr. David Hudesman and explores the current therapeutic landscape for inflammatory bowel disease.

Host: Charles Turck, PharmD, BCPS, BCCCP Guest: Sun-Ho Lee, MD, PhD Recent research explored the development, validation, and implications of the GEM integrative risk score (GEM-IRS). To learn how this innovative model helps predict the future risk of Crohn's Disease in healthy first-degree relatives, Dr. Charles Turck speaks with Dr. Sun-Ho Lee, Assistant Professor and clinician scientist at the Inflammatory Bowel Disease Centre at Mount Sinai Hospital in Toronto, Canada.

Host: Charles Turck, PharmD, BCPS, BCCCP Guest: Sun-Ho Lee, MD, PhD Recent research explored the development, validation, and implications of the GEM integrative risk score (GEM-IRS). To learn how this innovative model helps predict the future risk of Crohn's Disease in healthy first-degree relatives, Dr. Charles Turck speaks with Dr. Sun-Ho Lee, Assistant Professor and clinician scientist at the Inflammatory Bowel Disease Centre at Mount Sinai Hospital in Toronto, Canada.

Host: Charles Turck, PharmD, BCPS, BCCCP Guest: Phil Ayers, PharmD, BCNSP, FMSHP, FASHP When considering multi-chamber bag parenteral nutrition (MCB-PN), there are a variety of factors to consider, including the patients' hemodynamic stability and nutrient needs. After a patient is selected, their whole care team must be aware of common risks and challenges to ensure safe and effective delivery. Dr. Charles Turck is joined by Dr. Phil Ayers to discuss appropriate patient selection based on recent updates to ASPEN guidelines and safety considerations. Dr. Ayers is a Clinical Associate Professor at the University of Mississippi School of Pharmacy and the Chief of Clinical Pharmacy Services in the Department of Pharmacy at Baptist Medical Center in Jackson, MI.

Host: Charles Turck, PharmD, BCPS, BCCCP Guest: Phil Ayers, PharmD, BCNSP, FMSHP, FASHP Though 100% soybean oil was once the standard for lipid emulsions in parenteral nutrition, mixed lipid emulsions have become more popular over the last decade. But there are a variety of patient-specific factors to consider before determining which type of lipid emulsion is appropriate. Dr. Charles Turck sits down with Dr. Phil Ayers to compare the available options and recommend strategies for selecting and monitoring patients. Dr. Ayers is a Clinical Associate Professor at the University of Mississippi School of Pharmacy and the Chief of Clinical Pharmacy Services in the Department of Pharmacy at Baptist Medical Center in Jackson.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Douglas Drossman, MD While neuromodulators are primarily used to treat psychiatric disorders, they can also help normalize symptoms of irritable bowel syndrome by targeting the gut-brain axis. In fact, about half of all patients with IBS have the potential to benefit from neuromodulators. Dr. Douglass Drossman joins Dr. Peter Buch to discuss his research on how various neuromodulators can provide relief for IBS patients. Dr. Drossman is the President of the Drossman Center of Education and Practice of Psychosocial Care and Drossman Consulting as well as a Professor Emeritus of Medicine and Psychiatry at the University of North Carolina School of Medicine.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: Douglas Drossman, MD While neuromodulators are primarily used to treat psychiatric disorders, they can also help normalize symptoms of irritable bowel syndrome by targeting the gut-brain axis. In fact, about half of all patients with IBS have the potential to benefit from neuromodulators. Dr. Douglass Drossman joins Dr. Peter Buch to discuss his research on how various neuromodulators can provide relief for IBS patients. Dr. Drossman is the President of the Drossman Center of Education and Practice of Psychosocial Care and Drossman Consulting as well as a Professor Emeritus of Medicine and Psychiatry at the University of North Carolina School of Medicine.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: William Grady, MD While colorectal cancer is the second most common cause of cancer deaths, only a third of people between the ages of 45 and 75 are compliant with screening recommendations. However, cell-free DNA blood-based tests could become a new option for colorectal cancer screening. Dr. Peter Buch sits down with GI expert Dr. William Grady to discuss the efficacy of this new test and where it is in the FDA approval process.

Host: Peter Buch, MD, FACG, AGAF, FACP Guest: William Grady, MD While colorectal cancer is the second most common cause of cancer deaths, only a third of people between the ages of 45 and 75 are compliant with screening recommendations. However, cell-free DNA blood-based tests could become a new option for colorectal cancer screening. Dr. Peter Buch sits down with GI expert Dr. William Grady to discuss the efficacy of this new test and where it is in the FDA approval process.