APRV

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In the APRV (airway pressure release ventilation) is a introduced in 1987 and published by Stock, Downs and Frolicher ventilation mode .

APRV is the only ventilation mode that primarily supports expiration and not inspiration . A preselected airway pressure is generated at which the patient can breathe spontaneously.

history

APRV ventilation was originally described by Stock and Downs in 1987 as CPAP ventilation with an intermittent release phase. APRV starts at a pressure higher than the base pressure and follows with deflation to achieve tidal ventilation. In principle, APRV ventilation is a time-dependent change between two levels of positive airway pressure, with the main time being at the high level and a short exhalation to facilitate ventilation.

Control parameters

  • The lower pressure level depends on the severity of the oxygenation disorder.
  • Opening time: 0.5–3 s.
  • Number of opening phases: 5–15 / min., Depending on the degree of support required for ventilation and the elimination of CO 2

Individual evidence

  1. ^ H. Benzer: Therapy of respiratory failure. In: J. Kilian, H. Benzer, FW Ahnefeld (ed.): Basic principles of ventilation. Springer, Berlin a. a. 1991, ISBN 3-540-53078-9 , 2nd, unchanged edition, ibid 1994, ISBN 3-540-57904-4 , pp. 215-278; here: pp. 255–257.
  2. ↑ Airway pressure release ventilation . In: Critical Care Medicine . tape 15 , no. 5 , May 1987, ISSN  0090-3493 , pp. 459-461 , doi : 10.1097 / 00003246-198705000-00001 .
  3. ↑ M. Christine Stock, John B. Downs, Deborah A. Frolicher: Airway pressure release ventilation . In: Critical Care Medicine . tape 15 , no. 5 , May 1, 1987, ISSN  0090-3493 ( ovid.com [accessed May 18, 2018]).
  4. ^ P. Milo Frawley, Nader M. Habashi: Airway Pressure Release Ventilation: Theory and Practice . In: Aacn Clinical Issues: Advanced Practice in Acute and Critical Care . tape 12 , no. 2 , May 1, 2001, ISSN  1079-0713, ( ovid.com [accessed May 18, 2018]).
  5. ^ Dietrich Henzler: What on earth is APRV? In: Critical Care . tape 15 , January 31, 2011, ISSN  1364-8535 , p. 115 , doi : 10.1186 / cc9419 , PMID 21345265 , PMC 3222047 (free full text).