Medical Journal of the Islamic Republic Of Iran
مجله پزشکی جمهوری اسلامی ایران
Med J Islam Repub Iran
Medical Sciences
http://mjiri.iums.ac.ir
2
journal2
1016-1430
2251-6840
8
10.18869/mjiri
14
8888
13
en
jalali
1383
6
1
gregorian
2004
9
1
18
2
online
1
fulltext
en
CORRECTED QT DISPERSION IN CHILDREN WITH ISOLATED UNCOMPLICATED MITRAL VALVE PROLAPSE
Pediatric
Pediatric
Original Research: Clinical Science
Original Research: Clinical Science
Mitral valve prolapse (MVP) is a relatively frequent valvular abnormality. In both
children and adults with MVP, an increased incidence of ventricular arrhythmias has
been reported. QT dispersion, defined as the difference in duration between the longest
QT interval and the shortest one, for a given set of electrocardiographic leads has
been proposed as a sign of regional difference in cardiac repolarization and as a marker
of increased risk of ventricular arrhythmias. This study was designed to compare the
corrected QT dispersion (QTD) in children with isolated uncomplicated prolapse with
a normal age-and sex-matched group of children. Twenty children with MVP (mean±SD
age: 8 ±5 years) and thirty normal children enrolled in the study. Corrected QT dispersion
was manually calculated on their surface electrocardiogram in all of them. QTD
was 3 9± 14.7 and 40± 15.2 milliseconds respectively. An unpaired Student t -test was
performed . There was no significant difference between the mean value of the two
groups (p value<O.O 1). The findings of our study, besides the reports of increased QT
dispersion in adults, suggest that increased QT dispersion in patients with MVP is a
time-evolved phenomenon and does not exist from the very early years of age.
Corrected QT dispersion, Mitral valve prolapse, Children.
107
110
http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-85&slc_lang=en&sid=1
ELAHEH
MALAKAN RAD
malakan_rad@Kaums.ac.ir
20031947532846003554
20031947532846003554
Yes
From the Department of Pediatrics, Kashan University of Medical Sciences. Kashan, !.R. Iran.
NADER
MOMTAZMANESH
20031947532846003555
20031947532846003555
No