Gastroparesis Symptoms Associated with Intestinal Hypomotility: An Explorative Study Using Wireless Motility Capsule

Area of Science:

• Gastroenterology
• Clinical Diagnostics
• Motility Disorders

Background:

• Gastric emptying measurements are standard for gastroparesis, but their correlation with symptom severity is uncertain.
• Identifying reliable biomarkers for gastroparesis symptom generation is essential for accurate diagnosis and management.

Purpose of the Study:

• To investigate the association between symptom severity and gastrointestinal motility using a wireless motility capsule.
• To determine if symptom severity in gastroparesis correlates better with intestinal motility than with gastric emptying.

Main Methods:

• Prospective single-center study involving 107 patients with gastroparesis symptoms.
• Simultaneous investigation using gastric emptying scintigraphy and wireless motility capsule to measure transit times and contractility.
• Symptom severity assessed using Patient Assessment of Upper Gastrointestinal Symptom Severity Index (PAGI-SYM) and Gastroparesis Cardinal Symptom Index (GCSI).

Main Results:

• Nausea correlated with gastric, small bowel, and colonic motility indices in the overall patient group.
• In idiopathic gastroparesis, nausea correlated with small bowel motility and stomach pressure.
• Total GCSI scores negatively correlated with small bowel and colon pressures; PAGI-SYM scores correlated with colonic motility in diabetes patients.
• No association was found between symptoms and gastric emptying or other gastric transit times.

Conclusions:

• Symptom severity in gastroparesis patients is linked to intestinal hypomotility, not solely delayed gastric emptying.
• Gastroparesis diagnostics should incorporate assessments of small bowel and colonic motility.
• Wireless motility capsule data provides valuable insights into the relationship between gut motility and symptom severity.