QT-interval dispersion in malnourished children

Clinical Cardiology
A J FuenmayorA M Fuenmayor

Abstract

Little is known about the electrocardiographic (ECG) QT interval and its variability in malnourished children. The study of the QT interval and its dispersion in malnourished children was undertaken to determine whether the QT interval and its variability are increased in these children. In 40 children (20 malnourished and 20 controls) aged 12.2 +/- 14.4 months (23 male) a conventional ECG was performed for computing heart rate, heart rate variability, corrected QT interval, and QT-interval dispersion. A blood sample was obtained for measuring hemoglobin, hematocrit, plasma protein, and plasma electrolytic concentrations. Corrected heart rate, heart rate variability, and QT Interval were similar in both groups. When compared with the control group, the malnourished children had greater corrected QT-interval dispersion, and that dispersion was more accentuated in the precordial leads. They also had repolarization abnormalities (flattened or inverted T waves and U waves). Hemoglobin, hematocrit, plasma protein, and plasma electrolytic concentrations were lower in the malnourished children. However, the ECG findings showed no statistically significant relationship with either the blood parameters, the severity or type of malnutrit...Continue Reading

References

Mar 1, 1988·The American Journal of Emergency Medicine·G D Kelen, J L Baker
Aug 1, 1994·Journal of Cardiovascular Electrophysiology·D J StattersA J Camm
Jul 1, 1994·The Journal of Pediatrics·E A SekulA K Percy
Aug 1, 1995·Journal of Cardiovascular Electrophysiology·S Sicouri, C Antzelevitch

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Citations

Feb 18, 2005·Cardiovascular Drugs and Therapy·Luigi CorvagliaGian Paolo Salvioli
Jan 27, 2005·Journal of the American College of Nutrition·José L OlivaresJesús Fleta
Sep 22, 2015·Frontiers in Pediatrics·Neeraj KumarKishour Kumar Digra
Oct 23, 2002·Healthcare Management Forum·Kevin BrazilBrian Guest
Jun 11, 2019·Clinical Pediatrics·Anita ChaphekarAmy B Middleman

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