David A. Rytand, M.D., F.A.C.P.; Gene R. Profant, M.D.
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Differentiation of atrial flutter from paroxysmal atrial tachycardia with block is especially difficult at relatively slow atrial rates, leading some to regard these two arrhythmias as identical. Difficulties persist even when the selected electrocardiographic lead demonstrates atrial activity clearly, undisturbed by ventricular complexes.
Classical continuous electrical activity of flutter may be revealed or exaggerated by obtaining the record at 20 to 30 mm/mv. Unfortunately, often one must deal with a standard record, the patient being unavailable for further study.
In such an instance, one may simulate electronic amplification by either of two simple optical methods. In the first, one glances
Rytand DA, Profant GR. Simple Optical Methods for the Recognition of Atrial Flutter.. Ann Intern Med. 1965;63:907–908. doi: 10.7326/0003-4819-63-5-907_3
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Published: Ann Intern Med. 1965;63(5):907-908.
Cardiology, Rhythm Disorders and Devices.
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Print ISSN: 0003-4819 | Online ISSN: 1539-3704
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