An effective rectal administration method in the left semiprone position　

Satoshi Awazu, Nagasaki, Japan　  
 

  It was often observed that the rectosigmoid colon more nearly overlapped with the sigmoid-descending colon junction when the patient was placed in the left semiprone position in the single-contrast enema examination.

  Therefore, we considered that the rectosigmoid colon is located in the highest position while the sigmoid-descending colon junction is located in the lowest position and various kinds of drugs can be readily administered into the proximal colon in the left semiprone position. 

  Please refer to https://peerj.com/preprints/68v1/
                          peerj.com/preprints/68v1.pdf