Opioid-induced bowel dysfunction: epidemiology, pathophysiology, diagnosis, and initial therapeutic approach

Area of Science:

• Gastroenterology
• Pharmacology

Background:

• Opioids disrupt gastrointestinal motility, leading to symptoms like constipation.
• Opioid-induced constipation (OIC) negatively affects patient quality of life and treatment adherence.
• Effective management strategies for OIC are crucial for patient care.

Purpose of the Study:

• To review the impact of opioids on gastrointestinal function.
• To outline assessment and diagnostic approaches for OIC.
• To discuss recommended first-line management strategies for OIC.

Main Methods:

• Literature review of clinical studies on OIC.
• Analysis of current recommendations for OIC assessment and treatment.
• Synthesis of evidence regarding lifestyle modifications, laxatives, and opioid rotation.

Main Results:

• OIC is a common and burdensome side effect of opioid therapy.
• Assessment involves history, physical examination, and potentially diagnostic tests.
• First-line treatments include lifestyle changes, dietary fiber, stool softeners, and laxatives.

Conclusions:

• Opioid-induced constipation requires careful patient assessment.
• Initial management should focus on conservative measures and lifestyle adjustments.
• Opioid rotation may be considered as part of the therapeutic approach.