Key Clinical Points Cryptogenic Stroke One quarter of patients with ischemic stroke have no
probable cause found after standard workup, including echocardiography, inpatient cardiac …

In about a quarter of ischaemic strokes the cause is undetermined, because the
investigation is incomplete or delayed, because there are multiple causes or because the …

Background and Purpose—Occult paroxysmal atrial fibrillation (AF) is found in a substantial
minority of patients with cryptogenic stroke. Identifying reliable predictors of paroxysmal AF …

IN this issue of the Journal, Lechat and colleagues1 show that contrast echocardiography
greatly increased the frequency with which patent foramen ovale was diagnosed in a series …

Background Atrial fibrillation is a leading preventable cause of recurrent stroke for which
early detection and treatment are critical. However, paroxysmal atrial fibrillation is often …

Strokes that remain without a definite cause even after extensive work‐up are classified as
cryptogenic. These constitute about 30–40% of all strokes. Stroke aetiology may remain …

Background and purpose Atrial fibrillation (AF) increases the risk of stroke fourfold and is
associated with a poor clinical outcome. Despite work‐up in compliance with guidelines, up …

BACKGROUND: Patients with atrial fibrillation (AF) are at increased risk for ischemic stroke.
In patients who have suffered a stroke, screening for AF is routinely performed only for a …

Cryptogenic (of unknown cause) ischaemic strokes are now thought to comprise about 25%
of all ischaemic strokes. Advances in imaging techniques and improved understanding of …

Cryptogenic, or unexplained, stroke is present in about 30%–40% of ischemic stroke
patients. Pursuing a stroke mechanism is important in such patients to better choose therapy …