Why the study?
Does low R-wave amplitude (< 5.0 mV) increase the risk of inappropriate ICD therapy in patients with transvenous ICD systems?
Does low R-wave amplitude (< 5.0 mV) increase the risk of inappropriate ICD therapy in patients with transvenous ICD systems?
Low R-wave amplitude (< 5.0 mV) in ICD patients, particularly those with progressive cardiac disorders like ARVC or sarcoidosis, is strongly associated with inappropriate shocks due to T-wave oversensing.
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Low R-wave amplitude was associated with inappropriate ICD shocks from T-wave oversensing; leaves open need for prospective validation before guiding device selection or programming.
Watanabe et al. (2006) studied this question.