A single‐center retrospective study comparing 1‐day and 3‐day low‐residue diets for bowel preparation

Abstract

A low-residue diet (LRD) is recommended as part of bowel preparation before a colonoscopy. However, the optimal duration of the LRD is unclear. A retrospective cross-sectional study was therefore conducted at E-Da Dachang Hospital. We compared bowel preparations using the Aronchick score and other quality metrics during two consecutive periods: May 2019 to December 2019 (3-day LRD) and January 2020 to August 2020 (1-day LRD). A total of 2823 patients were enrolled (1592 in the 3-day LRD group and 1231 in the 1-day LRD group). The most common bowel cleansing agent was sodium picosulfate and magnesium citrate (SPMC, 84.2%), followed by polyethylene glycol (PEG, 10.0%) and sodium phosphate (5.8%). Compared with patients in the 3-day LRD group, patients in the 1-day LRD group had higher SPMC use (88.1% vs 81.3%, P < .001) and supplemental laxative use (25.9% vs 19.3%, P < .001).The proportion of adequate bowel preparation (84.2% vs 85.1%, P = .563), cecal intubation rate, adenoma detection rate, and right-side adenoma detection rate were not significantly different between 1-day LRD and 3-day LRD groups. More advanced adenomas (5.9% vs 3.4%, P = .002) and sessile serrated lesions (8.9% vs 6.3%, P = .014) were observed in the 1-day LRD group. In addition, the types of laxatives (SPMC, sodium phosphate, and PEG) and the use of supplemental laxatives did not affect bowel preparation scores. In conclusion, a 1-day LRD led to bowel preparation similar to that achieved through a 3-day LRD regardless of the type of primary cleansing agent or the use of supplemental laxatives.

Revisiting bowel preparation: The quest for the optimal low‐residue diet duration

“…Notably, the 1‐day LRD group had a higher detection rate of advanced adenomas (5.9% vs. 3.4%, P = .002) and sessile serrated lesions (8.9% vs. 6.3%, P = .014). The choice of laxatives and the use of supplemental laxatives did not impact the quality of bowel preparation 14 . These findings align with updated guidelines and provide valuable insights for clinicians 9,11,14 …”

“…The choice of laxatives and the use of supplemental laxatives did not impact the quality of bowel preparation 14 . These findings align with updated guidelines and provide valuable insights for clinicians 9,11,14 …”

“…The choice of laxatives and the use of supplemental laxatives did not impact the quality of bowel preparation. 14 These findings align with updated guidelines and provide valuable insights for clinicians. 9,11,14 Despite the significant advancements in understanding the optimal duration of a 1-day LRD for bowel preparation before colonoscopy, there remain unanswered questions regarding its impact on hard-to-prepare patients.…”

“…14 These findings align with updated guidelines and provide valuable insights for clinicians. 9,11,14 Despite the significant advancements in understanding the optimal duration of a 1-day LRD for bowel preparation before colonoscopy, there remain unanswered questions regarding its impact on hard-to-prepare patients. Hard-to-prepare patients may require a longer duration of dietary restriction or additional interventions to overcome their specific challenges.…”

One‐day versus three‐day low‐residue diet bowel preparation regimens before colonoscopy: a meta‐analysis of randomized controlled trials

“…Two articles were not included in our analysis because they were not RCTs, but their conclusions are basically consistent with those of our metaanalysis. 23,24 A study containing post hoc analysis of a 1-day versus 3-day LRD suggested that a well-structured 3-day LRD is not superior to the 1-day LRD in terms of colon cleansing quality in patients with risk factors of poor bowel cleansing. 23 In a single-center retrospective study comparing 1-day and 3-day LRD for bowel preparation, a real-world study was conducted on LRD with different durations and found a 1-day LRD led to bowel preparation similar to that achieved through a 3-day LRD regardless of the type of primary cleansing agent or the use of supplemental laxatives.…”