Response:

摘要

I agree that the bowel cleansing scale used in the trial1 comparing oral sulfate solution (OSS) with sodium picosulfate plus magnesium citrate (SP+MC) is not validated. However, the scale definitions have substantial similarities to the Aronchick scale, and the scale has been accepted by the U.S. Food and Drug Administration (FDA) in pivotal trials.2,3 The key element in a bowel cleansing trial is blinding of the colonoscopists, which in this study was effective and complete. The blinded evaluations found that OSS produced superior cleansing compared with SP+MC.