Aggregate QRS Duration

**Semantic type:** Quantitative Concept

**Definition:** An aggregate QRS value based on the measurement of QRS intervals from multiple beats within a single ECG. The method of aggregation, which can vary, is typically a measure of central tendency such as the mean. (CDISC)

**Synonyms:** - QRS Duration, Aggregate - QRS Duration, Aggregate - QRS Duration, Aggregate - QRSAG - QRSAG