Pressure support ventilation (PSV) reverses hyperinflation induced isorhythmic A-V dissociation.

Abstract:

:We report a case of hyperinflation induced isorythmic atrio-ventricular dissociation with circulatory failure in a patient with chronic obstructive pulmonary disease. The arrythmia was successfully treated by applying "pressure support ventilation" (PSV: 20 cmH2O) which, by decreasing the respiratory rate and increasing the expiratory time reduced the level of auto-PEEP. In order to explain this result the Authors recorded, in the same patient, the level of auto-PEEP and delta FRC obtained with Intermittent Positive Pressure Ventilation (IPPV), Intermittent Mandatory Ventilation (IMV) and PSV at the same gas exchange values. PSV showed a dramatic reduction of both these parameters. (Auto-PEEP: IPPV 12 cmH2O, IMV 17 cmH2O, PSV 7 cmH2O).

journal_name

Intensive Care Med

journal_title

Intensive care medicine

authors

Conti G,Bufi M,Antonelli M,Rocco M,Gasparetto A

doi

10.1007/BF00263868

subject

Has Abstract

pub_date

1989-01-01 00:00:00

pages

319-21

issue

5

eissn

0342-4642

issn

1432-1238

journal_volume

15

pub_type

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