Electrophysiologic cardiac function before and after surgery in children with atrioventricular canal

Anne Fournier, Ming Lon Young, Otto L. Garcia, Dolores F. Tamer, Grace S. Wolff

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

Thirty-two children with atrioventricular (AV) canal underwent electrophysiologic studies: 18 underwent preoperative studies at a median age of 3 years (range 6 months to 16 years); 14 underwent postoperative studies at a median age of 4 years (range 2 to 19); and 2 underwent both preoperative and postoperative matched studies. In the preoperative group the following abnormalities were observed: first-degree AV block in 5 patients (due to internodal conduction delay in 1, AV nodal conduction delay in 2 and normal intracardiac intervals in 2); internodal conduction delay but normal PR interval in 4; and disease of the sinus node in only 1. In the postoperative group the following abnormalities were observed: first-degree AV block in 9 (due to AV nodal conduction delay in 2, His-Purkinje system conduction delay in 1, upper normal intracardiac intervals in 3 and unidentified in 3); prolongation of the right ventricular apical activation time in 11 of 13 with right bundle branch block; abnormal sinus node function in 3; and abnormal AV nodal function in 4 (1 of whom had associated sinus node disease). Atrial and ventricular functions were normal in all preoperative and postoperative patients. Electrophysiologic dysfunction is rare in preoperative patients with AV canal; in postoperative patients electrophysiologic abnormalities occur in 38% and involve the sinus and AV nodes in 19 and 25%, respectively.

Original languageEnglish
Pages (from-to)1137-1141
Number of pages5
JournalThe American journal of cardiology
Volume57
Issue number13
DOIs
StatePublished - May 1 1986
Externally publishedYes

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Sick Sinus Syndrome
Sinoatrial Node
Atrioventricular Block
Atrial Function
Atrioventricular Node
Bundle-Branch Block
Ventricular Function

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Electrophysiologic cardiac function before and after surgery in children with atrioventricular canal. / Fournier, Anne; Young, Ming Lon; Garcia, Otto L.; Tamer, Dolores F.; Wolff, Grace S.

In: The American journal of cardiology, Vol. 57, No. 13, 01.05.1986, p. 1137-1141.

Research output: Contribution to journalArticle

Fournier, Anne ; Young, Ming Lon ; Garcia, Otto L. ; Tamer, Dolores F. ; Wolff, Grace S. / Electrophysiologic cardiac function before and after surgery in children with atrioventricular canal. In: The American journal of cardiology. 1986 ; Vol. 57, No. 13. pp. 1137-1141.
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