Routine ileal intubation during screening colonoscopy: a useful maneuver?

Area of Science:

• Gastroenterology
• Endoscopy
• Preventive Medicine

Background:

• The necessity of routine ileoscopy in screening colonoscopies is debated.
• Many physicians consider terminal ileum intubation essential for a complete colonoscopy.
• This study questions the diagnostic yield of routine ileal intubation during screening.

Purpose of the Study:

• To evaluate the diagnostic utility of routine ileoscopy as part of screening colonoscopy.
• To determine if terminal ileal intubation provides significant findings in asymptomatic individuals undergoing screening.

Main Methods:

• Retrospective analysis of a prospectively maintained colonoscopy database.
• Inclusion of 6,408 patients who underwent screening colonoscopy with terminal ileal intubation.
• Data collected from a tertiary referral center, including Mayo Clinic patients.

Main Results:

• Grossly abnormal findings during ileoscopy were observed in only 1% of patients.
• Pathologic abnormalities were confirmed in a mere 0.3% of the total patient cohort.
• The diagnostic yield of routine terminal ileal intubation is very low.

Conclusions:

• Terminal ileal intubation is not a necessary component of screening colonoscopy.
• Routine ileoscopy provides minimal diagnostic benefit in the context of screening.
• Endoscopic guidelines may need revision regarding mandatory ileal intubation.