Usefulness of warm water and oil assistance in colonoscopy by trainees

Sung Chul Park, Bora Keum, Eun Sun Kim, Eun Suk Jung, Sehe Dong Lee, Sanghoon Park, Yeon Seok Seo, Yong Sik Kim, Yoon Tae Jeen, Hoon Jai Chun, Soon Ho Um, Chang Duck Kim, Ho Sang Ryu

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22 Citations (Scopus)


Background and Study Aims Success rate of cecal intubation, endoscopist's difficulty, and procedure-related patient pain are still problems for beginners performing colonoscopy. New methods to aid colonoscopic insertion such as warm water instillation and oil lubrication have been proposed. The aim of this study is to evaluate the feasibility of using warm water or oil in colonoscopy. Methods Colonoscopy was performed in 117 unsedated patients by three endoscopists-in-training. Patients were randomly allocated to three groups, using a conventional method with administration of antispasmodics, warm water instillation, and oil lubrication, respectively. Success rate of total intubation within time limit (15 min), cecal intubation time, degree of endoscopist's difficulty, and level of patient discomfort were compared among the three groups. Results Cecal intubation time was shorter in the warm water group than in the conventional and oil groups. Degree of procedural difficulty was lower in the warm water group, and patient pain score was higher in the oil lubrication group, compared with the other groups. However, there was no significant difference in success rate of intubation within time limit among the three groups. Conclusions The warm water method is a simple, safe, and feasible method for beginners. Oil lubrication may not be a useful method compared with conventional and warm water method.

Original languageEnglish
Pages (from-to)2940-2944
Number of pages5
JournalDigestive Diseases and Sciences
Issue number10
Publication statusPublished - 2010 Oct


  • Colonoscopy
  • Oil
  • Trainee
  • Warm water

ASJC Scopus subject areas

  • Physiology
  • Gastroenterology

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  • Cite this

    Park, S. C., Keum, B., Kim, E. S., Jung, E. S., Lee, S. D., Park, S., Seo, Y. S., Kim, Y. S., Jeen, Y. T., Chun, H. J., Um, S. H., Kim, C. D., & Ryu, H. S. (2010). Usefulness of warm water and oil assistance in colonoscopy by trainees. Digestive Diseases and Sciences, 55(10), 2940-2944.