[Acute diarrhea--current assessment and therapy in clinical practice]

Area of Science:

• Infectious Diseases
• Gastroenterology
• Microbiology

Context:

• Acute diarrhea is a common global health issue, frequently caused by infectious agents.
• Initial patient assessment relies on medical history, clinical signs, and basic stool examinations.
• Distinguishing between different types of diarrhea guides subsequent diagnostic and therapeutic decisions.

Purpose:

• To outline an evidence-based approach for the initial evaluation of acute infectious diarrhea.
• To delineate diagnostic pathways based on clinical presentation and initial stool test results.
• To guide the appropriate use of microbial identification and antibiotic therapy.

Summary:

• The initial evaluation of acute diarrhea integrates medical history, clinical presentation, and stool tests (fecal leukocytes, occult blood) to guide further management.
• Viral or non-invasive enterotoxigenic diarrhea typically requires only oral rehydration.
• Enteroinvasive diarrhea or enteric syndromes necessitate further investigation with stool and blood cultures for targeted antibiotic therapy in specific conditions like acute febrile dysentery, shigellosis, cholera, typhoid fever, severe salmonellosis, and Clostridium difficile colitis.

Impact:

• Provides a clear diagnostic and management algorithm for acute infectious diarrhea, optimizing patient care.
• Reduces unnecessary antibiotic use by differentiating between conditions requiring and not requiring antimicrobial intervention.
• Improves patient outcomes by ensuring timely and appropriate treatment for severe or invasive diarrheal diseases.