Fluid administration during routine colonoscopy is not clinically significant: a randomized controlled trial.

Area of Science:

• Gastroenterology
• Anesthesiology
• Clinical Trials

Background:

• Retrospective studies question the necessity of intravenous (IV) fluids in routine colonoscopies for well patients.
• Patients undergoing colonoscopy typically have minimal fluid loss and consume clear fluids shortly before the procedure.

Purpose of the Study:

• To assess the impact of IV fluid administration on hypotension and electrolyte disturbances in patients undergoing colonoscopy.
• To evaluate intraoperative hypotensive episodes and serum electrolyte changes as primary outcomes.

Main Methods:

• A single-blind randomized trial comparing IV fluid versus no IV fluid groups.
• Primary outcomes included equivalence of hypotensive episodes (defined as >20% drop in systolic blood pressure) and serum electrolyte changes.
• Secondary outcomes assessed patient-reported outcome measures (PROMs).

Main Results:

• No significant difference in hypotensive events between the IV fluid group (35.7%) and the no IV fluid group (38.3%).
• Similar rates of hemodynamic support requirement (14 participants in each group).
• Postoperative electrolyte levels and PROMs were comparable across both groups.

Conclusions:

• The trial was underpowered to establish definitive recommendations for IV fluid use during colonoscopy.
• No clinically significant differences were observed between the groups regarding hypotensive events or electrolyte changes.
• Findings contribute valuable data for meta-analyses and future research in perioperative fluid management.