Key result
During asphyxia-induced gasping, phrenic activity showed a conspicuous loss in high-frequency oscillation power and hypoglossal activity showed a significant reduction in power.
The transition from eupnea to gasping in rats is characterized by a significant loss of high-frequency oscillations in phrenic and hypoglossal nerve activity, reflecting respiratory network reconfiguration.
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No immediate implications for clinical asphyxia care; leaves open translational relevance of oscillation loss in gasping.
Marchenko et al. (2006) studied Respiratory motor output changes during gasping (n=9). Asphyxia-induced gasping vs. Eupnea (normal breathing) was evaluated on Changes in power spectral characteristics (MFO and HFO) of phrenic and hypoglossal nerve recordings. During asphyxia-induced gasping, phrenic activity showed a conspicuous loss in high-frequency oscillation power and hypoglossal activity showed a significant reduction in power.
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