NSAID-related gastrointestinal complications

Area of Science:

• Gastroenterology
• Pharmacology

Background:

• Nonsteroidal anti-inflammatory drugs (NSAIDs) frequently cause gastrointestinal (GI) complications, including bleeding and perforation.
• The pathogenesis and optimal management of NSAID-induced GI injury remain incompletely understood.
• The term "NSAID gastropathy" broadly encompasses various distinct mucosal lesions, hindering precise clinical investigation.

Purpose of the Study:

• To review the pathogenesis and management of NSAID-induced GI complications.
• To provide general guidelines for the prevention of these complications.
• To discuss unresolved issues, such as the role of Helicobacter pylori and the impact of newer NSAIDs.

Main Methods:

• Literature review and synthesis of current knowledge on NSAID-induced GI injury.
• Discussion of mechanisms involving platelet effects and mucosal lesions.
• Analysis of clinical implications of different NSAID classes.

Main Results:

• NSAID complications stem from direct mucosal damage and impaired platelet function, affecting the esophagus, stomach, and duodenum.
• Pre-existing ulcers and NSAID-induced lesions contribute to bleeding risk.
• Cyclo-oxygenase (COX)-2 selective inhibitors show reduced endoscopic ulcer risk and minimal platelet effects compared to traditional NSAIDs.

Conclusions:

• Reducing or eliminating NSAID exposure is the primary management strategy.
• Differentiating between various NSAID-induced mucosal lesions is crucial for effective clinical investigation and management.
• While newer COX-2 inhibitors appear safer endoscopically, their definitive clinical benefit in reducing GI complications requires further establishment.