Could the Boston bowel preparation scale in colonoscopy help to predict an inadequate preparation in capsule endoscopy?

Aims To evaluate the Boston bowel preparation scale (BBPS) in the colonoscopy in patients who undergo a capsule endoscopy and analyze its relationship with the cleanliness in the capsule.

Methods A retrospective descriptive study of the capsule procedures performed in our hospital between 2021-22. The preparation in capsule endoscopy is categorized as adequate/inadequate according to the adequacy assessment of Brotz. [1]

Results Of the 143 capsule explorations, there is a previous colonoscopy and registration of the BBPS in 133 (93%). Of these 133 examinations, in 87 (65.4%) the preparation in the capsule was adequate, and in 46 (34.6%) inadequate.

In the procedures with adequate preparation, the mean BBPS value was 7.9, median 9, and mode 9. 50.6% of patients with adequate preparation had a previous colonoscopy with BBPS 9.

Meanwhile, in patients with inadequate preparation, 97.8% had the previous colonoscopy with BBPS≥6. The mean Boston value was 7.35, the median 7, and the mode 6.

Conclusions 1. In our series, although 97.8% of patients with inadequate preparation in capsule have a BBPS≥6, the mean and the median value of the BBPS was lower than in patients with adequate preparation ([Fig. 1] ).

Fig. 1

2. Half (50.6%) of the patients with adequate preparation in the capsule had a previous colonoscopy with excellent preparation (BBPS=9).

3. The value of the BBPS in the colonoscopy prior to the capsule endoscopy could be used as a predictor of the preparation in the capsule and thus take additional measures.

 

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Conflicts of interest

Authors do not have any conflict of interest to disclose.

• 1 Rondonotti E, Spada C, Adler S. et al. Small-bowel capsule endoscopy and device-assisted enteroscopy for diagnosis and treatment of small-bowel disorders: European Society of Gastrointestinal Endoscopy (ESGE) technical review. Endoscopy 2018; 50 (04) 423-446

Publication History

Article published online:
14 April 2023