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2025 International Gastrointestinal Electrophysiology Society (iGES) Annual Meeting
5:00 - 9:30 pm, Saturday, May 3, 2025
Hotel Indigo San Diego-Gas Lamp Quarter
509 9th Avenue San Diego, California 92101
Kindly sponsored by:
17:00 – 18:30 Registration & Dinner (RSVP/Registration required, but there is no cost).
If you cannot register via a google form then contact: l.cheng AT auckland.ac.nz
18:00 – 18:30 Session 1: Presentation from Enterra Medical
18:30 – 19:30 Session 2: Upper Bowel 1 (Abstracts A1 – A8)
19:30 – 19:45 Break
19:45 – 20:30 Session 3: Upper Bowel 2 (Abstracts B1 – B8)
20:30 – 20:40 Break
20:40 – 21:10 Session 4: Lower Bowel (Abstracts C1 – C5)
21:10 – 21:20 Awards Ceremony
Congratulations to our award winners:
Alvarez Award: Castillo-Leon et al. (Abstract A2)
Robert Stern Award: Alam et al. (Abstract A6)
Young Investigator Awards: Nagahawatte et al. (Abstract A7), Ali et al. (Abstract B1), Feng et al. (Abstract B8), Hussain et al. (Abstract C1)
Sesion 1: Updates from Enterra Medical (18:00-18:30)
- Peter Sommerness, CEO Enterra Medical
- Michale Awad, Department of Surgery, Washington University in St. Louis
Session 2: Upper Bowel 1 (Abstracts A1 - A8, 18:30-19:30)
A1. Creation of an International Patient Registry for Children and Adults Treated with Gastric Electrical Stimulation.
P L Lu (1), A P Usman (1), T Abell (2).
1. Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Nationwide Children’s Hospital, Columbus, Ohio, USA.
2. Division of Gastroenterology, Hepatology and Nutrition, University of Louisville, Louisville, Kentucky, USA
(7+2 mins)
A2. Improvement of Gastrointestinal and Non-Gastrointestinal Somatic Symptoms in Children Treated with Gastric Electrical Stimulation.
Eduardo Castillo-Leon (1), Amina Usman (1), Kathryn E. Hawa (2), Raul Sanchez (1), Neetu Bali Puri (1), Karla K. H. Vaz (1), Desalegn T. Yacob (1), Md Rejuan Haque (3), Karen A. Diefenbach (4), Carlo Di Lorenzo (1), Peter L. Lu (1).
1. Division of Gastroenterology, Hepatology, and Nutrition, Department of Pediatrics, Nationwide Children’s Hospital, Columbus, OH, USA
2. Division of Gastroenterology, Hepatology and Nutrition, Riley Hospital for Children, Indiana University, Indianapolis, IN, USA
3. Division of Biostatistics, College of Public Health, The Ohio State University, Columbus OH, USA
4. Division of Surgery, Nationwide Children's Hospital, Columbus, Ohio, USA
(Alvarez Award, 7+2 mins)
A3. Effects of Gastric Electrical Stimulation at an Academic Tertiary Motility Referral Center.
Fares Kasem, Alexandra Goad, Micheal Hogg, Prateek Mathur, Le Yu Naing, Lindsay McElmurray, Carmelita Moppins, Michael W. Daniels, Abigail Stocker, Thomas L. Abell.
University of Louisville, Louisville, KY, United States
(3+1 min)
A4. Response to Gastric Stimulation According to Gastroparesis vs Functional Dyspepsia.
Prateek Mathur, Alexandra Goad, Brian Goodman, Le Yu Naing, Michael Daniels, Abigail Stocker, Thomas L. Abell.
University of Louisville, Louisville, KY, United States
(3+1 min)
A5. Effectiveness of Combined Gastric Electrical Stimulation (GES) and Pyloroplasty in Treating Refractory Gastroparesis: Findings from a Double-Blind Randomized Placebo-Controlled Trial.
I Sarosiek (1), M Bashashati (2), BR Davis (3), K Espino (1), D Vasquez (1), R Torelli (4), T Bright (5), J Sarosiek (1), J R Diaz (6), O Padilla (7), A K Dwivedi (8), R W McCallum (1).
1. Division of Gastroenterology, Department of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas
2. Division of Gastroenterology, Department of Medicine, Dell Medical School at UT Austin, Austin, Texas
3. Christus Trinity Clinic, Corpus Christi, Texas
4. Paul L. Foster School of Medicine, TTUHSC El Paso, TX
5. Division of Endocrinology, Department of Medicine, Texas Tech University Health Sciences Center, El Paso, Texas
6. Department of Radiology, Texas Tech University Health Sciences Center, El Paso, Texas
7. Department of Pathology, Texas Tech University Health Sciences Center, El Paso, Texas
8. Division of Biostatistics and Epidemiology, Department of Molecular and Translational Medicine, Texas Tech University Health Sciences Center El Paso, El Paso, Texas
(3+1 min)
A6. Roles of the Nucleus Tractus Solitarius in Gastric Distention-Induced Pain and the Effect of Auricular Vagal Nerve Stimulation on Gastric Tone in Normal Rats.
Md Jahangir Alam, Jiande D Z Chen.
Division of Gastroenterology and Hepatology, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
(Robert Stern Award, 7+2 min)
A7. Electrode Evaluation and Entrainment Mapping for Endoscopic Gastric Pacing.
Nipuni D. Nagahawatte, Chaveeka Weerakoon, Ashton Matthee, Leo K. Cheng.
Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
(Young Investigator Award, 7+2 mins)
A8. A Method for Gastric Closed-loop Pacing Assessed with High-resolution Mapping.
Nipuni D. Nagahawatte, Chaveeka Weerakoon, Peng Du, Niranchan Paskaranandavadivel, Leo K. Cheng.
Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
(3+1 min)
Session 3: Upper Bowel 2 (Abstracts B1 - B8, 19:45-20:30)
B1. Validation of Heart Rate Variability Parameters Through Pathway-Specific Neural and Pharmacological Blockades in Rats.
M. Khawar Ali, Shuangshuang Ji, Jahangir Alam, Sidan Long, Kaijie Wang, Shiyuan Gong, Jiande D. Z. Chen.
Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, University of Michigan, Ann Arbor, MI, USA
(Young Investigator Award, 7+2 mins)
B2. Sympathetic Dysfunction in Patients with Chronic Upper Gastrointestinal Motility Disorders.
Marzia Alam, Yiwen Hou, Xurui Chen, Minuki Wikramasuriya, Gurpreet Khurme, Brienna DiBattista, Hansel Lui, Difei Zheng, Maxwell Pan, Jihong Chen, Jan D.Huizinga.
Chen-Huizinga Laboratory; Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, 1280 Main Street West, HSC 3N8E, Hamilton, Ontario, L8S 4K1, Canada
(3+1 min)
B3. Associations Between Intragastric Meal Distribution, Gastric Emptying and Gastric Neuromuscular Dysfunction in Chronic Gastroduodenal Disorders.
C Varghese (1), (2), A A Gharibans (3), D Foong (4), G Schamberg (1), (3), S Calder (3), V Ho (4), R Anand (5), C N Andrews (6), A H Maurer (5), T Abell (7), H Parkman (5), G O’Grady (1), (3).
1. Department of Surgery, University of Auckland, Auckland, New Zealand
2. Department of Surgery, Mayo Clinic, Rochester, Minnesota, United States
3. Alimetry Ltd, Auckland New Zealand
4. Western Sydney University, Sydney, Australia
5. Department of Medicine, Temple University Hospital, Philadelphia, Department of Medicine, Temple University Hospital, Philadelphia, PA, United States
6. Dept of Gastroenterology, University of Calgary, Canada
7. Division of Gastroenterology, Hepatology and Nutrition, University of Louisville, Kentucky, United States
(3+1 min)
B4. Jianpi Shugan GubenDecoction Restoresthegut-brain Axis to Ameliorate Rats With Diarrhea-predominant Irritable Bowel Syndrome via MEK1/ERK1.
Shengsheng Zhang (1), (3), Nian Liu (2), Mengdi Jia (1), Xiaofang Lu (1)
1. Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing,100010, China
2. Beijing University of Chinese Medicine, Beijing, 100029, China
3. Department of Gastroenterology, Beijing Hospital of Traditional Chinese Medicine, Capital Medical University, No. 23 Art Museum Back Street, Dongcheng District, Beijing, 100010, China.
(3+1 min)
B5. Endoscopic Gastric Ablation Can Eliminate Ectopic Pacemakers.
A. Matthee (1), J. M. Dowrick (1), N. D. Nagahawatte (1), L. Nisbet (1), L. K. Cheng (1), J. A. Windsor (2), (3), G. Sands (1), T. R. Angeli-Gordon (1), (2), (3), (4).
1. Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
2. Department of Surgery, University of Auckland, Auckland, New Zealand
3. Surgical and Translational Research Centre, Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
4. Te Manawahoukura Rangahau Centre, Te Wānanga o Aotearoa, New Zealand
(3+1 min)
B6. Slow-wave Morphology as an Actionable Biomarker.
J. M. Dowrick (1), T. R. Angeli-Gordon (1), (2), (3), P. Du (1), (4), J. C. Erickson (1), (5).
1. Auckland Bioengineering Institute, University of Auckland, Auckland, New Zealand
2. Te Manawahoukura Rangahau Centre, Te Wānanga o Aotearoa, New Zealand
3. Department of Surgery, University of Auckland, Auckland, New Zealand
4. Department of Engineering Science and Biomedical Engineering, University of Auckland, New Zealand
5. Department of Physics and Engineering, Washington and Lee University, Lexington, VA, USA
(3+1 min)
B7. Parameter-Specific Effects of VNS on Gastrointestinal Motility in Type 2 Diabetic Rats: Afferent vs. Efferent Stimulation.
Xinya Lan (1), (2), Yan Li, Fei (1) Li, Shiyuan Gong (1), Kaijie Wang (1), Shiying Li (1), Md Jahangir Alam (1), Jiande D Z Chen (1)
1. Division of Gastroenterology and Hepatology, Department of Internal Medicine, School of Medicine, University of Michigan, Ann Arbor, USA
2. Department of Rehabilitation Medicine, Fujian Provincial Hospital; Shengli Clinical Medical College, Fujian Medical University; Fuzhou University Affiliated Provincial Hospital, Fuzhou, China
(3+1 min)
B8. GLP-1 Plays a Vital Role in Transcutaneous Auricular Vagus Nerve Stimulation Suppressing Appetite of Obese Individuals.
Bowen Feng (1), Chen Xin (1), (2), Shaoyuan Li (1), Yu Wang (1), Peijing Rong (1), (2).
1. Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical Sciences,100700, Beijing, China
2. Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing, China
(Young Investigator Award, 7+2 mins)
Session 4: Lower Bowel (Abstracts C1 - C5, 20:40-21:10)
C1. The 3 CPM Rhythmic Motor Pattern in the Human Colon is a Relaxation Initiated Motor Pattern with Rebound Contraction, Promoting Absorption and Mixing, Revealed by Ultrasound.
Amer Hussain, Krish Patel, Ji-Hong Chen, and Jan D. Huizinga
Chen-Huizinga Laboratory; Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University, 1280 Main Street West, HSC 3N8E, Hamilton, Ontario, L8S 4K1, Canada
(Young Investigator Award, 7+2 mins)
C2. Autonomic Function and Its Association with Sensation-Stimulated Anal Sphincter Relaxation During Rectal Distention in Healthy Controls and Patients with Functional Constipation and Fecal Incontinence.
Lijun Liu, Julia Niro, Nick Cai, Ji-Hong Chen, Jan D. Huizinga
Chen-Huizinga Laboratory; Department of Medicine, Farncombe Family Digestive Health Research Institute, McMaster University1280 Main Street West, HSC 3N8E, Hamilton, Ontario, L8S 4K1, Canada
(3+1 min)
C3. Exploring the Causal Relationship Between Gut Microbiota and Intestinal Obstruction: A Two-sample Mendelian Randomization Analysis.
X.J. Rao (1), (2), G. D. Huang (1), (2), W. Wei (1), (2).
1. Gastroenterology, Wangjing Hospital, China Academy of Chinese Medical Sciences
2. Beijing Key Laboratory of Traditional Chinese Medicine Diagnosis and Treatment for Functional Gastrointestinal Diseases
(3+1 min)
C4. Electroacupuncture Alleviates the Symptoms of Diarrheal Irritable Bowel Syndrome (IBS-D) in a Rat Model Induced by Maternal Separation and Chronic Restraint by Regulating the Paraventricular Nucleus of the Hypothalamus (PVH).
Q Y Wang (1), (2), W Q Jiang (4), Z T Zhong (1), (3), X P Zhang (1), (3), S W Wu (4), X X Hu (1), (3), Z Z Gong (1), (3), L X Ma (4), P J Rong (5), X L Su (1), (3), W Wei (1), (3)
1. China Academy of Chinese Medical Sciences Wangjing Hospital, Beijing, China
2. Tianjin University of Traditional Chinese Medicine
3. Laboratory of Functional Gastrointestinal Disorders Diagnosis and Treatment of Traditional Chinese Medicine, Beijing, China
4. Beijing University of Chinese Medicine
5. Institute of Acupuncture and Moxibustion, China Academy of Chinese Medical
(3+1 min)
C5. Anti-inflammatory Mechanism and Central Pathway of Auricular Vagal Nerve Stimulation for Visceral Hyperalgesia in a Rodent Model of Irritable Bowel Syndrome.
Kaijie Wang, Md Jahangir Alam, Shiying Li, Xinya Lan, Fei Li, Jiande D Z Chen
Division of Gastroenterology and Hepatology, School of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
(3+1 min)
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