Recommendation Reversals in Gastroenterology Clinical Practice Guidelines

Area of Science:

• Gastroenterology
• Clinical Practice Guidelines
• Evidence-Based Medicine

Background:

• Clinical practice guidelines (CPGs) provide recommendations for patient care.
• Recommendations may be reversed due to new evidence of futility or harm.
• Understanding these reversals is crucial for maintaining guideline accuracy.

Purpose of the Study:

• To identify and characterize recommendation reversals in gastroenterology CPGs.
• To analyze the evidence base and strength of recommendations associated with these reversals.

Main Methods:

• Systematic search of CPGs from 20 gastroenterology societies (1990-2019).
• Inclusion of guidelines with at least two iterations on the same topic.
• Definition of reversal: a practice previously recommended is now recommended against, without a new replacement recommendation.

Main Results:

• 11 recommendation reversals identified across 10 guidelines out of 129 analyzed CPGs.
• New evidence supported 10 reversals, with meta-analyses and randomized controlled trials (RCTs) cited.
• Changes in recommendation strength varied, with some becoming stronger, weaker, or remaining similar post-reversal.

Conclusions:

• Recommendation reversals in gastroenterology CPGs are infrequent.
• These reversals highlight previously accepted practices that are now considered low-value or potentially harmful.
• Continuous evaluation of evidence is essential for updating CPGs and ensuring patient safety.