ST-segment monitoring can detect silent ischemia, which occurs in the absence of symptoms. Although the impact of ST-segment monitoring on patient outcomes is not known, when ST-segment monitoring is used it is imperative that accurate data are obtained.
Level I: Manufacturer’s recommendations only
Level II: Theory based, no research data to support recommendations; recommendations from expert consensus group may exist
Level III: Laboratory data, no clinical data to support recommendations
Level IV: Limited clinical studies to support recommendations
Level V: Clinical studies in more than one or two patient populations and situations to support recommendations
Level VI: Clinical studies in a variety of patient populations and situations to support recommendations
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