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05:19
Surgical Models of Gastroesophageal Reflux with Mice
Published on: August 25, 2015
Gastrooesophageal reflux disease
1Department of Medicine, Temple University School of Medicine, 3401 North Broad Street, 801 Parkinson Pavilion, Philadelphia, PA 19140, USA. jrichter@temple.edu
Best Practice & Research. Clinical Gastroenterology
|July 24, 2007
Summary
Gastroesophageal reflux disease (GERD) is increasingly prevalent, linked to obesity and H. pylori eradication. Key mechanisms involve transient LES relaxation and hiatal hernias, with new therapies targeting LES relaxation.
Area of Science:
- Gastroenterology
- Digestive Health
- Medical Research
Background:
- Gastroesophageal reflux disease (GERD) is a growing health concern with significant diagnostic and treatment costs.
- Obesity and Helicobacter pylori eradication are identified as key risk factors contributing to the rising prevalence of GERD.
- Transient lower esophageal sphincter (LES) relaxation and hiatal hernias are increasingly recognized as critical mechanisms driving acid reflux.
Purpose of the Study:
- To review the current understanding of GERD pathophysiology, diagnosis, and treatment options.
- To evaluate the efficacy and limitations of existing GERD treatments, including proton pump inhibitors (PPIs) and surgery.
- To identify future directions for drug development targeting the underlying mechanisms of GERD.
Main Methods:
- Literature review of studies on GERD prevalence, risk factors, and mechanisms.
- Analysis of diagnostic methods, including ambulatory esophageal pH testing and endoscopy.
- Comparative assessment of medical (PPIs) and surgical treatments for GERD.
- Evaluation of current and emerging endoscopic therapies.
Main Results:
- Heartburn and acid regurgitation are common symptoms but lack diagnostic sensitivity for GERD.
- Ambulatory esophageal pH testing offers high sensitivity, while endoscopy provides high specificity for GERD diagnosis.
- Proton pump inhibitors (PPIs) have transformed GERD management but carry potential long-term side effects.
- Laparoscopic antireflux surgery and PPIs demonstrate comparable efficacy in long-term studies.
- Endoscopic treatments are currently not recommended for routine clinical use outside of research settings.
Conclusions:
- Future pharmacologic strategies for GERD should focus on modulating transient LES relaxation.
- While PPIs and surgery are effective, understanding and addressing underlying mechanisms like LES dysfunction is crucial.
- Further research is needed to optimize GERD management and develop targeted therapies.
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