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. 2016 May 31;18(2):121–128. doi: 10.5853/jos.2016.00150

Table 2.

Summary of studies/trials that investigated the incidence of atrial fibrillation detection following cryptogenic stroke

Study Sample size Study design Incidence of AF detection
EMBRACE trial n = 572 Randomized control study At 90 days: 16.1% of intervention group (non-invasive ambulatory electrocardiogram monitoring) vs. 3.2% of control group
CRYSTAL AF trial n = 441 Randomized control study At 6 months: 8.9% of intervention group (insertible cardiac monitor [ICM]) vs. 1.4% of control group
12 months: 12.4% of intervention group vs. 2% of control group
36 months: 30% of intervention group vs. 3% of control group
Ziegler et al. (2015) n = 1,247 Retrospective cohort analysis 30 days: 4.6% of patients with ICM
182 days: 12.2% of patient with ICM