Key result
Extended 4-year ILR monitoring yields an ~80% cumulative diagnostic rate in unexplained syncope.
Why the study?
The average diagnostic yield of implantable loop recorders in unexplained syncope is reported at 35% over less than 18 months, but the value of very prolonged observation is unclear.
Does very prolonged observation with an implantable loop recorder improve diagnostic yield in patients with unexplained syncope?
Cohort (n=157)
Does very prolonged observation with an implantable loop recorder improve diagnostic yield in patients with unexplained syncope?
Prolonging ILR monitoring up to 4 years significantly increases diagnostic yield in patients with unexplained syncope, with a quarter of diagnoses occurring after 18 months.
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May support extended ILR monitoring in unexplained syncope; leaves open effects on outcomes and cost-effectiveness.
Furukawa et al. (2011) conducted a cohort in Unexplained syncope (n=157). Very prolonged observation by implantable loop recorder (ILR) was evaluated on Cumulative diagnostic rate. Prolonging observation with an implantable loop recorder up to 4 years in patients with unexplained syncope yielded an estimated cumulative diagnostic rate of 80%.
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