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 ΔFRC 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).
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Conti, G., Bufi, M., Antonelli, M. et al. Pressure support ventilation (PSV) reverses hyperinflation induced isorhythmic A-V dissociation. Intensive Care Med 15, 319–321 (1989). https://doi.org/10.1007/BF00263868
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DOI: https://doi.org/10.1007/BF00263868