abnormality: It is likely your doctor saw an abnormality in the rhythm on your ecg. An echo will evaluate the anatomy of your heart to determine if a structural or valve abnormality is present and causing the arrhythmia. The holter monitor is used to obtain a 24 hour or longer electrical recording of your heart's activity, much like an ecg. It can then be reviewed for occurrences of arrhythmia's.
Answered 10/16/2013
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