Evidence
How we made the decision
Exceptionally, significant new evidence may mean an update of a guideline is agreed before the next scheduled check of the need for an update. The evidence might be a single piece of evidence, an accumulation of evidence or other published NICE guidance.
For details of the process and update decisions that are available, see ensuring that published guidelines are current and accurate in developing NICE guidelines: the manual.
Evidence
This surveillance report provides an overview of a Cochrane review published since the end of the search period for the NICE guideline (September 2012). The results of this Cochrane review, alongside topic expert feedback and previous surveillance evidence, were considered in detail to determine if there was an impact on the recommendations within the NICE guideline.
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