Does Low Birth Weight Affect P‐Wave and QT Dispersion in Childhood?

Akyüz, Aydın; Alpsoy, Şeref; Akkoyun, Dursun Çayan; Nalbantoğlu, Burçin; Ozdilek, Burcu; Donma, Mustafa Metın

doi:10.1111/pace.12223

Cited by 4 publications

(3 citation statements)

References 28 publications

(46 reference statements)

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“…In a slightly different population of term small-for-gestational-age infants, Akyuz et al could neither find any difference in QTd. 11 This suggest that the applicability of QTd as biomarker remains to be explored.…”

Section: Discussionmentioning

confidence: 99%

“…9,10 Finally, a study comparing QTc and QTd intervals between full term born cases with either a low birth weight (n = 50) or normal weight (n = 70) at an average age of 10 years could neither document significant differences. 11 Although the majority of the previously mentioned ECG studies were conducted at young adulthood (23.2, ±3.3 years and 18-33 years respectively), 7,8 we considered that the ECG observations, collected as part of the PREMATurity as predictor of children's Cardiovascular-renal Health (PREMATCH) study in former ELBW cases or term controls collected during pre-adolescence (age range 8-14 years) contribute to the available data on this specific aspect in former ELBW cases. 12…”

Section: Introductionmentioning

confidence: 99%

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QTc intervals are not prolonged in former ELBW infants at pre-adolescent age

et al. 2021

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BACKGROUND: Whether preterm birth is associated with cardiac conduction or repolarization abnormalities in later life is still poorly explored, with conflicting data on QTc prolongation in former extreme low birth weight (ELBW, <1000 g) infants. METHODS: Twelve lead electrocardiograms (ECG) at rest, collected in the PREMATurity as predictor of children's Cardiovascularrenal Health (PREMATCH) study in former ELBW cases and term controls during pre-adolescence (8-14 years) were analyzed on corrected QT time (QTc, Bazett) and QT dispersion (QTd). ECG findings were compared between groups (Mann−Whitney), and associations with clinical and biochemical findings were explored (Spearman). In ELBW cases, associations between QTc and perinatal characteristics (at birth, neonatal stay) were explored (Mann−Whitney, Spearman). RESULTS: QTc and QTd were similar between 93 ELBW cases and 87 controls [409 (range 360-465) versus 409 (337-460); 40 (0-100) versus 39 (0-110)] ms. Age, height, weight, or body mass index were not associated with the QTc interval, while female sex (median difference 11.4 ms) and lower potassium (r = −0.26) were associated with longer QTc interval. We could not observe any significant association between QTc interval and perinatal characteristics. CONCLUSIONS: There were no differences in QTc or QTd between ELBW and term controls in ECGs at rest in pre-adolescents.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

QTc intervals are not prolonged in former ELBW infants at pre-adolescent age

et al. 2021

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“…According to Vialle et al [ 57 ], QT-d and QTc-d were not related to age in children. The authors reported that QT dispersion did not change significantly with age and the mean value for the children aged from 5 days to 16 years was 36 ± 13.7 ms. Akyuz et al [ 58 ] evaluated children with low birth weight and with normal birth weight. The mean value for QTc-d was 29 ms in all children.…”

Section: Discussionmentioning

confidence: 99%

The normal electrocardiograms in the conscious newborn lambs in neonatal period and its progression

et al. 2015

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BackgroundVeterinary cardiology, especially electrocardiography, has shown major advancements for all animal species. Consequently, the number of ovine species used as experimental animals has increased to date. Few studies have been published on ovine systematic electrocardiography, particularly with respect to lamb physiology and neonatology. This study aimed to standardize the values of normal waves, complexes, and intervals of the electrocardiogram (ECG) in clinically Bergamasca healthy neonatal lambs, used as experimental animals. Serial computerized electrocardiography was performed in 10 male and 12 female neonates on the 1st, 7th, 14th, 21st, 28th, and 35th days of age. The following parameters were analyzed: heart rate and rhythm, duration and amplitude of waves, duration of intervals, and heart electrical axis.ResultsDuring the first 35 days of life, (1) the sinusal heart rhythm was predominant, (2) there was a progressive decrease in the heart rate and R and T wave amplitude, and (3) a progressive increase in the PR, QT, and RR intervals. Finally, we confirmed that various components of neonatal evolution were more discernible in the augmented unipolar leads (aVF), which we recommend should be preferentially used in future studies. No significant statistical alterations were observed between males and females in relation to the analyzed parameters.ConclusionsThe information assimilated in this study is anticipated to enhance the diagnosis of multiple congenital heart defects in Bergamasca lambs and could be implemented in studies that use ovine species as experimental models.

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