Immediate unprepared hydroflush colonoscopy for severe lower GI bleeding: a feasibility study.

Area of Science:

• Gastroenterology
• Endoscopy
• Emergency Medicine

Background:

• Severe lower GI bleeding often necessitates urgent colonoscopy.
• Traditional colonoscopy prep is time-consuming and may be inadequate in critically ill patients.
• Oral bowel preparation poses challenges in severe lower GI bleeding cases.

Purpose of the Study:

• To assess the feasibility and safety of immediate unprepared hydroflush colonoscopy.
• To evaluate the outcomes of this technique in severe lower GI bleeding patients.
• To determine if hydroflush colonoscopy provides adequate visualization without oral preparation.

Main Methods:

• Prospective feasibility study.
• Immediate colonoscopy using tap-water enema and hydroflush technique (water-jet pumps, suction).
• Performed on intensive care unit patients with severe lower GI bleeding.

Main Results:

• Colonoscopy to the cecum achieved in 69.2% of patients.
• Adequate visualization for bleeding source identification in all procedures.
• Definite bleeding source identified in 38.5% of cases.
• Median ICU stay: 1.5 days; hospital stay: 4.3 days.
• Rebleeding rate: 25%.

Conclusions:

• Immediate unprepared hydroflush colonoscopy is feasible for severe lower GI bleeding.
• The hydroflush technique facilitates visualization without traditional bowel prep.
• This approach is a viable option in selected critically ill patients.