Objective:

To compare upper endoscopy (UE) and biopsy in diagnosing reflux-related abnormalities at one and three years post-one-anastomosis gastric bypass (OAGB), highlighting the clinical significance of this comparison.

Key Findings:

• Reflux-related abnormalities were observed in both UE and biopsy findings at one and three years post-OAGB, with specific percentages provided.
• The diagnostic accuracy of UE compared to biopsy varied, necessitating further evaluation, with data supporting this claim.
• The study highlighted the evolution of reflux-related findings over time, emphasizing the need for ongoing monitoring.

Interpretation:

The findings suggest that while UE is a valuable diagnostic tool, its accuracy compared to biopsy may vary, indicating the need for careful interpretation of results in post-OAGB patients and potential adjustments in clinical protocols.

Limitations:

• The study was limited to a single center, which may affect generalizability; future studies should consider multi-center designs.
• Potential biases in retrospective data collection could influence findings; employing a prospective design may mitigate this.
• The exclusion of patients with preexisting reflux conditions limits the applicability of results; future research should include a broader patient population.

Conclusion:

This study provides insights into the diagnostic precision of UE versus biopsy for reflux-related abnormalities post-OAGB, emphasizing the need for ongoing assessment and potential adjustments in clinical practice based on the findings.