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Current Concepts in Sick Sinus SyndromeII. ECG Manifestation and Diagnostic and Therapeutic Approaches
Nenad Belie, MD;
James V. Talano, MD
Arch Intern Med. 1985;145(4):722-726.
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| Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings. |
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Sinus node dysfunction, or sick sinus syndrome (SSS), is defined as a disorder of impulse formation within the sinus node and impulse conduction out of the node. The disorder of impulse formation not only involves the sinus node but also affects subsidiary pacemakers.1-3 Thus, the term SSS reflects a more diffuse disease of the specialized conduction system involving the atria, the atrioventricular node, and occasionally the common His bundle and the bundle branches. This disorder is not of a single cause but has a constellation of causes (Table 1, in part I). Electrocardiographic (ECG) manifestations may predate the development of symptoms by several years. Once symptomatic sick sinus node dysfunction develops, recovery is unlikely and medical or surgical intervention is required. We will discuss ECG manifestations of sinus node dysfunction, newer techniques available for diagnosis of sinus node dysfunction, and current medical and surgical therapy. With early clinical recognition
. . . [Full Text PDF of this Article]
Author Affiliations
From the Section of Cardiology, Northwestern University Medical School (Drs Belie and Talano) and Veterans Administration Lakeside Medical Center (Dr Belie), Chicago.
Footnotes
Accepted for publication Aug 1, 1984.
Reprint requests to Cardiology Graphics Laboratory, Northwestern Memorial Hospital, 250 E Superior, Chicago, IL 60611 (Dr Talano).
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