Abstract:
:For more than a decade there has been considerable interest in the role of QT interval prolongation in the pathogenesis of sudden infant death syndrome. It has been proposed that the QT interval is a surrogate marker for autonomic instability and can be used to identify infants at risk for significant morbidity and mortality, including sudden infant death syndrome. We present the case of an infant that experienced a significant increase in his QTc, as detected by continuous QTc monitoring in the NICU after repositioning from a supine to prone position. This increase from a 413 ± 6 millisecond baseline average to 500 milliseconds was sustained for 2 hours and associated with clinically relevant apnea that ultimately required repositioning of the infant back to the supine position. Repositioning resulted in an immediate decrease of the QTc back to the previous baseline and termination of the apneic events. This case demonstrates an example of how the use of continuous QTc monitoring in the NICU setting may be used to detect QTc-accentuating factors in real time and identify situations that cause perturbations in an infant's autonomic nervous system.
journal_name
Pediatricsjournal_title
Pediatricsauthors
Ellsworth MA,Ulrich TJ,Carey WA,Colby CE,Ackerman MJdoi
10.1542/peds.2012-4005subject
Has Abstractpub_date
2013-12-01 00:00:00pages
e1690-3issue
6eissn
0031-4005issn
1098-4275pii
peds.2012-4005journal_volume
132pub_type
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