We discovered a phenomenon whereby the rectosigmoid junction becomes
linear when the patient is moved from a left lateral to left semiprone
position and the colonoscope can be readily inserted into the sigmoid
colon.
Therefore, this phenomenon was applied to our conventional insertion method to determine whether the colonoscope looping rate in the sigmoid colon can be reduced.
Please refer to the following links:
https://peerj.com/preprints/535v1.pdf
http://dx.doi.org/10.7287/peerj.preprints.535v1
http://dx.doi.org/10.1016/j.gie.2011.11.005
Figure 1.
The phenomenon we discovered. The colonoscope tip reached the
rectosigmoid junction. When the endoscopist moved the patient from a
left lateral to left semiprone position with the colonoscope slightly
pushed with twisting to the left, the visual field broadened, both the
rectosigmoid junction and colonoscope simultaneously became linear, and
the colonoscope tip was readily inserted into the sigmoid colon. Rectosigmoid junction (▲).
Therefore, this phenomenon was applied to our conventional insertion method to determine whether the colonoscope looping rate in the sigmoid colon can be reduced.
Please refer to the following links:
https://peerj.com/preprints/535v1.pdf
http://dx.doi.org/10.7287/peerj.preprints.535v1
http://dx.doi.org/10.1016/j.gie.2011.11.005