Gastric acid secretion in typhoid fever

Area of Science:

• Gastroenterology
• Infectious Diseases
• Clinical Medicine

Background:

• Gastric acid secretion plays a role in host defense against ingested pathogens.
• Typhoid fever, caused by Salmonella Typhi, is a significant global health concern.
• Understanding host factors influencing typhoid severity is crucial for effective management.

Purpose of the Study:

• To investigate gastric acid secretion levels in patients with typhoid fever.
• To compare acid secretion in typhoid patients with non-typhoid febrile patients and healthy controls.
• To explore the association between gastric acid levels and typhoid fever severity and complications.

Main Methods:

• Gastric acid secretion was measured in 20 typhoid fever patients (Group A), 10 non-typhoid febrile patients (Group B), and 10 healthy controls (Group C).
• Measurements were taken during active fever and at intervals (1 week, 12 weeks) after fever subsided.
• Patients were categorized into uncomplicated (A1) and complicated (A2) typhoid groups.

Main Results:

• Typhoid patients (Group A) demonstrated significantly reduced gastric acid secretion compared to healthy controls (Group C) during fever and one week post-fever.
• In uncomplicated typhoid (A1), acid secretion levels increased after the initial recovery period.
• Complicated typhoid patients (A2) exhibited persistently low gastric acid secretion even 12 weeks after fever subsided.

Conclusions:

• Reduced gastric acid secretion is observed in typhoid fever patients.
• Pre-existing hypochlorhydria (low stomach acid) may be a predisposing factor for severe typhoid fever and complications.
• Gastric acid levels should be considered as a potential factor influencing typhoid disease progression and severity.