کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
3035569 1579575 2007 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Autonomic nervous system activity in premature and full-term infants from theoretical term to 7 years
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Autonomic nervous system activity in premature and full-term infants from theoretical term to 7 years
چکیده انگلیسی

The premature population reaching theoretical term suffers from a major deficit in autonomic nervous system (ANS) activity, as can be seen from heart rate variability indices. Whether this autonomic function recovers in the long term is not yet established. Thus, we analyzed and compared ANS activity indices, at birth or at the time of the theoretical term, and at ages 2–3 and 6–7 years, in two populations: a group of 30 premature children and a reference group of 14 full-term age-matched newborns. Using Fourier Transform analysis, we studied 24-h ECG Holter recordings to establish heart rate variability indices: Ptot, VLF, LF, HF, ratio LF/HF, LFnu, HFnu. In the neonatal period, sympathetic and even more markedly, parasympathetic activities were very low in prematures compared to the reference full-term group. At ages 2–3 and 6–7 years, prematures had recovered and had similar ANS activity as the full-term group. These data suggest a fast ANS maturation in prematures during the two first years of life, with a higher speed of recovery for the parasympathetic arm. Furthermore, compared evolution shows a faster ANS maturation in premature. Potential mechanisms are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Autonomic Neuroscience - Volume 136, Issues 1–2, 30 October 2007, Pages 105–109
نویسندگان
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