Single-balloon colonoscopy versus repeat standard colonoscopy for previous incomplete colonoscopy: a randomized,...

Area of Science:

• Gastroenterology
• Endoscopy
• Medical Devices

Background:

• Optical colonoscopy is the primary method for colon visualization and polyp removal.
• A minority of patients experience unsuccessful complete colon examinations.
• The comparative efficacy of single-balloon, overtube-assisted colonoscopy (SBC) versus repeat standard colonoscopy (SC) for incomplete procedures is unclear.

Purpose of the Study:

• To compare the success rates of standard colonoscopy (SC) and single-balloon colonoscopy (SBC) in patients with a history of incomplete colon examinations.
• To evaluate the effectiveness of SBC as a rescue procedure following SC failure.

Main Methods:

• A randomized, controlled trial was conducted at a tertiary care academic center.
• Thirty patients with previous incomplete colonoscopies were enrolled.
• Patients underwent either SC or SBC, with crossover to the alternate method if cecal intubation was unsuccessful.

Main Results:

• Single-balloon colonoscopy (SBC) demonstrated a significantly higher cecal intubation success rate (92.9%) compared to standard colonoscopy (SC) (50%) (P = .016).
• All patients who initially failed SC achieved successful cecal intubation upon crossover to SBC (100%).
• Adenomas in the proximal colon were detected in 38.1% of subjects, with no procedure-related complications.

Conclusions:

• Single-balloon colonoscopy (SBC) is superior to repeat standard colonoscopy (SC) for achieving cecal intubation in patients with prior incomplete examinations.
• Consideration should be given to using balloon-assisted colonoscopy for repeat procedures when standard methods have previously failed.
• The study highlights SBC as a valuable alternative for challenging colonoscopy cases.