Section 27
Chapter 26,855

Involvement of thoracic nerve afferents in the respiratory response to chest compression

Shannon, R.

Physiologist: 86


ISSN/ISBN: 0031-9376
DOI: 10.1016/0034-5687(79)90015-x
Accession: 026854842

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Chest compression elicits extravagal neural reflexes which can alter the respiratory pattern. Experiments were conducted to determine the source of the afferents responsible for the respiratory response to chest compression (CC). The effects of CC on VT, f TI (inspiratory tidal air residual), TE (expiratory tidal air residue), blood gases, end-tidal CO2 and blood pressure were studied in anesthetized, vagotomized dogs and cats. In dogs, thoracic wall afferents were eliminated by thoracic dorsal rhizotomies (TDR) and/or spinal blocks (SB). There were 2 different respiratory responses to CC. In 1(I). Tt decreased and TE increased, resulting in a decreased f. The 2nd (II) resulted in a decreased TI and TE.

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