Key result
Implantable loop recorders are a useful diagnostic tool for unexplained syncope, life-threatening ventricular tachyarrhythmias, and detecting atrial fibrillation after cryptogenic stroke.
Why the study?
What is the clinical usefulness of the implantable loop recorder in diagnosing arrhythmias and syncope?
What is the clinical usefulness of the implantable loop recorder in diagnosing arrhythmias and syncope?
The implantable loop recorder is a versatile and essential tool for diagnosing unexplained syncope, detecting atrial fibrillation after cryptogenic stroke, and monitoring arrhythmia recurrence.
Supports implantable loop recorder use in unexplained syncope and post-stroke AF detection; leaves open prospective trials on clinical outcomes.
Initially, an implantable loop recorder (ILR) was introduced to find the cause of unexplained syncope, palpitation, and dizziness. It is now considered as a test of choice when repeated Holter recordings, more-prolonged external event loop recordings, head-up tilt test, or electrophysiological study fails to reveal the cause of recurrent syncope. However, with the help of technical advancement such as automated QRS morphology analysis, auto-adjusting sensing threshold, improved noise rejection, increased battery longevity, and remote monitoring function, the ILR has begun to play an important role in the diagnosis of life-threatening ventricular tachyarrhythmias as well. In addition, ILR monitoring shows clear usefulness in detecting atrial fibrillations after cryptogenic stroke, in differentiating true syncope from epilepsy, and in assessing the recurrence rate of atrial fibrillation after radiofrequency ablation.
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Seung‐Jung Park (2015) conducted a review in Unexplained syncope, cryptogenic stroke, and atrial fibrillation. Implantable loop recorder (ILR) was evaluated. Implantable loop recorders are a useful diagnostic tool for unexplained syncope, life-threatening ventricular tachyarrhythmias, and detecting atrial fibrillation after cryptogenic stroke.
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