Time-frequency analysis of heart rate variability in neonatal piglets exposed to hypoxia

Shiying Dong*, Mostefa Mesbah, Barbara E. Lingwood, John M. O'Toole, Boualem Boashash

*المؤلف المقابل لهذا العمل

نتاج البحث: Conference contribution

7 اقتباسات (Scopus)

ملخص

To determine whether the sympathetic nervous system plays any role in the inter-individual variation of cardiovascular response to hypoxia in newborns, neonatal heart rate variability (HRV) analysis was used to assess autonomic response during hypoxia in piglets. Due to the nonstationary nature of HRV signals and the inaccuracy in pre-defined neonatal HRV frequency bands using standard spectral methods, we applied time-frequency distribution analysis to assess neonatal HRV. Although sympathetic activity was initially enhanced to stimulate the cardiac compensation, it did not account for the variation of cardiovascular response since the power of low frequency component in HRV neither showed corresponding changes with the heart rate nor had any correlation with the brain injury. This may be attributed to immaturity of the neural pathway.

اللغة الأصليةEnglish
عنوان منشور المضيفComputing in Cardiology 2011, CinC 2011
الصفحات701-704
عدد الصفحات4
حالة النشرPublished - 2011
منشور خارجيًانعم
الحدثComputing in Cardiology 2011, CinC 2011 - Hangzhou, China
المدة: سبتمبر ١٨ ٢٠١١سبتمبر ٢١ ٢٠١١

سلسلة المنشورات

الاسمComputing in Cardiology
مستوى الصوت38
رقم المعيار الدولي للدوريات (المطبوع)2325-8861
رقم المعيار الدولي للدوريات (الإلكتروني)2325-887X

Other

OtherComputing in Cardiology 2011, CinC 2011
الدولة/الإقليمChina
المدينةHangzhou
المدة٩/١٨/١١٩/٢١/١١

ASJC Scopus subject areas

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