Endoscopia para la hemorragia aguda del tracto gastrointestinal superior no variceal: es cuanto antes mejor? Una revisión sistemática

CRD COMMENTARY:

This was a fairly well-conducted review. The aims were clearly stated and a fairly comprehensive literature search was undertaken. However, only English language publications were included and no attempt was made to locate unpublished data. A systematic procedure involving one or more reviewers was used to assess the relevancy of the retrieved articles, and the authors assessed the quality of the included trials. It was not stated how many of the reviewers extracted the data. Relevant details of most, but not all, of the included studies were presented in tabular format and described in the text. The actual results (i.e. effect size along with a measure of its variance or significance level) of the individual studies were not presented, only a description of the overall findings. It was also not stated whether significant findings related to statistical or clinical significance. Differences between the included studies were briefly discussed and a narrative synthesis of the results was appropriate.
The authors' conclusions, which took the poor quality of the included studies into consideration, appear to follow from the results.