Scientific Reports (Sep 2024)

Usefulness and safety of new ultrasmall-diameter colonoscope for cases with difficult insertion: a retrospective study

  • Rie Terada,
  • Ryoji Ichijima,
  • Aya Iwao,
  • Hiroshi Kinebuchi,
  • Yuta Okada,
  • Tomomi Sugita,
  • Kanako Ogura,
  • Akiko Haruta,
  • Hirofumi Kogure

DOI
https://doi.org/10.1038/s41598-024-72689-1
Journal volume & issue
Vol. 14, no. 1
pp. 1 – 6

Abstract

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Abstract Colonoscopies are widely available, but there are cases where insertion can be difficult, even for experienced endoscopists. EC-760XP/L, a new ultrasmall-diameter long scope, may be useful in such cases. This single-center retrospective study included 39 cases where colonoscope insertion was difficult even when previously conducted by an experienced endoscopist. The primary outcome was the cecal intubation time using EC-760XP/L compared to the time used in a previous examination with a standard scope. The secondary outcomes were the cecum intubation rate, intestinal cleanliness level, adenoma detection rate, polyp detection rate, sedative use rate, occurrence of adverse events, and pain experience. A comparison of cecal intubation times between EC-760XP/L and the standard scope showed that insertion times were significantly lower with EC-760XP/L (9.5 min) compared to the standard scope (19 min) (p < 0.01). The standard scope achieved cecal intubation in 30 cases (76.9%), whereas EC-760XP/L reached the cecum in all cases (p < 0.01). Pain was observed in 3 cases (8.3%) with the EC-760XP/L, which was significantly lower than the 22 cases (56.4%) with the standard scope (p < 0.01). In conclusion, EC-760XP/L proved to be useful in cases where colonoscope insertion was difficult.

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