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Diagnosis of Atrial Fibrillation: Which Role for 24-Hour Holter Monitoring?

german translation / full article

The authors of the first referred study randomly assigned 572 patients 55 years of age or older, without known atrial fibrillation, who had had a cryptogenic ischemic stroke or TIA within the previous 6 months (cause undetermined after standard tests, including 24-hour electrocardiography [ECG]), to undergo additional noninvasive ambulatory ECG monitoring with either a 30-day event-triggered recorder (intervention group) or a conventional 24-hour monitor (control group). The primary outcome was newly detected atrial fibrillation lasting 30 seconds or longer within 90 days after randomization. Noninvasive ambulatory ECG monitoring for a target of 30 days significantly improved the detection of atrial fibrillation by a factor of more than five and nearly doubled the rate of anti coagulant treatment, as compared with the standard practice of short-duration. That ECG monitoring with an ICM was superior to conventional follow-up for detecting atrial fibrillation after cryptogenic stroke was confirmed in a second study (both published in the New England Journal of Medicine). However, another paper from Erlangen/Germany, tackles the question of AF diagnostics from a completely different point: The authors showed that measurement of the peripheral pulse (MPP) at the radial artery is a simple, noninvasive screening tool for paroxysmal atrial fibrillation (pAF) in patients after acute ischemic stroke. With a low rate of false-positive results, MPP offers an easy, ubiquitously available, noninvasive, first-step screening tool to guide ECG diagnostics for pAF after ischemic stroke.


(State: 16.06.2015)

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