Figure 3From: Positive outcome of average volume-assured pressure support mode of a Respironics V60 Ventilator in acute exacerbation of chronic obstructive pulmonary disease: a case report Standard deviation indicating variance in tidal volume during spontaneous-timed and average volume-assured pressure support therapy. ST: spontaneous/timed mode, AVAPS: average volume-assured pressure support, SD: spontaneous/timed mode.Back to article page