Abstract
We present a first in human clinical trial of a new rectoscope that shows, by means of transillumination, the optimal point of transection of the rectum in oncologic surgery. The device was developed together with a team of engineers and was manufactured by 3D printing. Eighteen patients with a mean age of 71 years and a mean distance from the tumor to the anal margin measured by colonoscopy of 10.4±3.9cm and by MRI of 10±2.4cm were included in the trial. Transillumination was feasible in all cases, and the use of the rectoscope was safe, as no adverse events due to its use were recorded.
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