학술논문
Respiratory effect to heartbeat fluctuations in neonates
Document Type
Conference
Author
Source
2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society Engineering in medicine and biology Engineering in Medicine and Biology Society, 2001. Proceedings of the 23rd Annual International Conference of the IEEE. 1:537-539 vol.1 2001
Subject
Language
ISSN
1094-687X
Abstract
Coherence between heartbeat and respiratory intervals of early neonates occurring for 4 days after birth was studied by the computer analysis. Patterns of the first-joint R-R interval histogram, relation between nth and (n + 1)th R-R interval, in neonates are classified into three. In the first pattern of a neonate, just after birth, the relation curve dispersed linearly on the histogram, and coherence between R-R interval power spectrum density (PSD) and breathing PSD shows peak. But, a couple of hours later, the relation of the joint interval histogram is grouped like a spot temporally and the coherence does not show peak. One more hour later, the relation curve begins to disperse linearly again and spreads widely as the time goes by. Then, peaks appear again in the coherence.