Screening colonoscopy: The present and the future

Table 1 Strengths and weaknesses of air insufflation vs water insufflation

AI: Strengths	AI: Weaknesses	WI: Strengths	WI: Weaknesses
Distended bowel allows for better visualization	Increased pain on insertion	Increased ADR	Decreased visualization through fluid
More widely accepted	Increased postoperative pain	Decreased looping of bowel	Longer insertion time
Current teaching method	Increased sedation requirement	Decreased sedation requirement	Not widely accepted or utilized
Current patient preference	Increased risk of perforation	Increased cecal intubation rate

AI: Air insufflation; WI: Water insufflation; ADR: Adenoma detection rate.