High-frequency alternating lung ventilation

Stuart R Hameroff, J. M. Calkins, C. K. Waterson, J. S. Kanel

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A new mode, high-frequency alternating lung ventilation (HFALV) is described and demonstrated in which the lungs are alternately pulsed. A fluidic oscillator may be used to deliver two pulsed gas streams, 180 degrees out of phase, to bronchial catheters placed via a double lumen endobronchial tube. Inspiratory phase of one lung thus coincides with expiratory phase in the other, and characteristic lateral rocking chest movement is observed. In six dogs, HFALV was compared to simultaneous pulsing of both lungs with comparable flow (18.5 l/min), frequency (144 min-1), and pulse wave shape. Arterial P(CO2) was significantly lower (P<0.001) with HFALV. Arterial P(CO2) was also 'found to increase linearly (r=-0.862, P<0.001) with distance of the catheters' distal tips from the dogs' carinae. Theoretical mechanisms and possible applications of HFALV are discussed.

Original languageEnglish (US)
Pages (from-to)237-239
Number of pages3
JournalAnesthesiology
Volume54
Issue number3
StatePublished - 1981

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Ventilation
Lung
Catheters
Dogs
Thorax
Gases

ASJC Scopus subject areas

  • Anesthesiology and Pain Medicine

Cite this

Hameroff, S. R., Calkins, J. M., Waterson, C. K., & Kanel, J. S. (1981). High-frequency alternating lung ventilation. Anesthesiology, 54(3), 237-239.

High-frequency alternating lung ventilation. / Hameroff, Stuart R; Calkins, J. M.; Waterson, C. K.; Kanel, J. S.

In: Anesthesiology, Vol. 54, No. 3, 1981, p. 237-239.

Research output: Contribution to journalArticle

Hameroff, SR, Calkins, JM, Waterson, CK & Kanel, JS 1981, 'High-frequency alternating lung ventilation', Anesthesiology, vol. 54, no. 3, pp. 237-239.
Hameroff SR, Calkins JM, Waterson CK, Kanel JS. High-frequency alternating lung ventilation. Anesthesiology. 1981;54(3):237-239.
Hameroff, Stuart R ; Calkins, J. M. ; Waterson, C. K. ; Kanel, J. S. / High-frequency alternating lung ventilation. In: Anesthesiology. 1981 ; Vol. 54, No. 3. pp. 237-239.
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