Gastric Remnant Activity and Quality of Life After Gastric Bypass
Author Information
Author(s): Wang Tim Hsu-Han, Varghese Chris, Calder Stefan, Gharibans Armen A., Evennett Nicholas, Beban Grant, Schamberg Gabriel, O’Grady Greg
Primary Institution: University of Auckland, Auckland, New Zealand
Hypothesis
The remnant stomach in its dormancy will become atrophic with the diversion of contents, but it likely remains bioelectrically and neurally active, which could be relevant to symptom associations.
Conclusion
One-third of post-bypass patients suffered significant upper GI symptoms with reduced quality of life, and the bypassed remnant stomach shows highly deranged electrophysiology.
Supporting Evidence
- One-third of patients showed moderate to severe post-prandial symptoms.
- Patients had significantly worse PAGI-SYM and PAGI-QOL scores compared to controls.
- 84% of patients had undetectable gastric frequencies, indicating severe dysfunction.
Takeaway
After gastric bypass surgery, many patients feel sick and have a lower quality of life because their leftover stomach doesn't work well anymore.
Methodology
Patients undergoing gastric bypass were evaluated using the Gastric Alimetry® System, which included symptom logging and gastric electrophysiology assessments.
Potential Biases
Potential selection bias as symptomatic patients may have been more likely to participate.
Limitations
The study focused mainly on remnant gastric motility and did not systematically evaluate other potential sources of symptoms.
Participant Demographics
38 participants, median age 55.5 years, 8 males and 30 females.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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