概述
Guidelines for the practice of endoscopy are developed
by the American Society for Gastrointestinal Endoscopy
by using an evidence based methodology. A literature
search is performed to identify relevant studies on the
topic. Each study is then reviewed for both methodology
and results. Controlled clinical trials are emphasized, but
information is also obtained from other study designs
and clinical reports. In the absence of data expert
opinion is considered. When appropriate, the guidelines
are submitted to other professional organizations for
review and endorsement. As new information becomes
available revision of these guidelines may be necessary.
These guidelines are intended to apply equally to all
who perform GI endoscopic procedures, regardless of
specialty or location of the service. Practice guidelines
are meant to address general issues of endoscopic
practice. By their nature they cannot encompass all
clinical situations. They must be applied in the appropriate
context for an individual patient. Clinical considerations
may justify a course of action at variance to
these recommendations.