Spontaneous bile reflux in the elderly

Area of Science:

• Gastroenterology
• Geriatric Medicine
• Digestive Health

Background:

• Duodenogastric bile reflux is frequently observed in post-gastric surgery patients and occasionally in those with intact stomachs.
• Spontaneous bile reflux in elderly populations, particularly those experiencing dyspepsia, remains understudied.

Purpose of the Study:

• To investigate the prevalence and characteristics of spontaneous bile reflux in elderly dyspeptic patients compared to younger controls.
• To assess the relationship between bile acid levels, gastric pH, Helicobacter pylori infection, and gastritis in the elderly.

Main Methods:

• Fasting gastric juice samples were collected to measure total bile acid (TBA) levels and pH.
• Antral biopsies were performed for histological examination and identification of Helicobacter pylori.
• Patients included dyspeptic elderly individuals, elderly controls, and young controls.

Main Results:

• Elderly patients with gastritis exhibited significantly higher TBA levels than control groups.
• Abnormal TBA levels (> 1 mmol/l) were found in only 10% of elderly patients with gastritis and 7% with gastric ulcers.
• No significant difference in TBA levels was observed between H. pylori positive and negative patients. NSAID use was linked to reactive gastritis in elderly patients with normal TBA.

Conclusions:

• Spontaneous bile reflux is infrequent in the elderly population.
• The hypochlorhydria common in the elderly is not attributed to alkaline bile reflux.
• Non-steroidal anti-inflammatory drugs (NSAIDs) are identified as the primary cause of reactive gastritis in elderly individuals.