. Author manuscript; available in PMC: 2013 Nov 6.

Published in final edited form as: Intensive Care Med. 2011 Jul 8;37(10):10.1007/s00134-011-2304-3. doi: 10.1007/s00134-011-2304-3

Table 2.

Decrease in SV_RV during initial inspiration over a three-heartbeat period

	Apneic SV_RV (ml)	SV_RV decrease (ml)	SV_RV decrease (%)
V_t (ml/kg) (n = 6)
5	25.2 ± 9.5	−3.7 ± 1.0	15 ± 2
10	27.5 ± 8.3	−11.1 ± 7.7	38 ± 16
15	28.8 ± 8.2	−16.5 ± 6.7	56 ± 9
25	29.2 ± 9.5	−21.1 ± 10.2	70 ± 16
Increased ITP (n = 6)
Baseline	25.2 ± 7.9	−7.9 ± 3.0	35 ± 18
Thoraco-abdominal binding	26.7 ± 8.7	−11.7 ± 4.6	44 ± 14
Decreased cardiac contractility (n = 4)
Baseline	22.2 ± 4.5	−6.7 ± 2.8	31 ± 14
AVF	14.7 ± 1.6	−1.6 ± 0.5	11 ± 5

V_t tidal volume, SV_RV right ventricular stroke volume, ITP intrathoracic pressure, AVF acute ventricular failure