• Online Features  This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citation map  • Citing articles on Web of Science (1)  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

GEORGE BENZING III, MD

Am J Dis Child. 1976;130(5):467-468.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In 1920 Parkinson et al,¹ and in 1924 Cohn and Swift,² observed an association of acute rheumatic fever and prolongation of the PR interval of the electrocardiogram. Ziegler³ has noted that the PR interval is prolonged in 2% of normal children. Because the PR interval varies with age and heart rate, Mirowski et al⁴ devised the PR index to provide a standard by which the duration of the PR interval of a subject may be judged. A value greater than 1.0 is considered evidence of delay in atrioventricular (AV) conduction.

In 1965, the revised Jones criteria⁵ listed prolongation of the PR interval as one of the minor criteria used in establishing the diagnosis of rheumatic fever. Other conduction abnormalities may be observed. These include second-degree heart block, complete heart block, AV dissociation, and junctional rhythm. Clarke and Keith⁶ detected AV conduction abnormalities in 84% . . . [Full Text PDF of this Article]

Author Affiliations

CiteULike    Connotea    Delicious    Digg    Facebook    Reddit    Technorati    Twitter     What's this?