Evaluation of coronary blood flow velocity during cardiac arrest with circulation maintained through mechanical chest compressions in a porcine model

Table 1 Measurements of central venous and arterial pressures, CPP and APV

Variable/time	Baseline	0-2 min	2-4 min	4-6 min	6-8 min	8-10 min
Min AP [mmHg]	101.1 ± 1.1	16.9 ± 2.3	14.1 ± 1.1	11.9 ± 1.2	8.5 ± 1.2	5.6 ± 1.3
Mean AP [mmHg]	115.7 ± 1.2	35.7 ± 3.3	38.0 ± 0.7	36.3 ± 1.4	33.8 ± 0.8	37.8 ± 1.3
Max AP [mmHg]	129.3 ± 1.5	65.9 ± 6.4	69.9 ± 0.8	68.0 ± 1.1	66.2 ± 0.9	65.6 ± 0.9
Min CVP [mmHg]	1.7 ± 0.5	1.9 ± 1.3	1.2 ± 0.2	1.1 ± 0.2	8.1 ± 0.2	1.0 ± 0.3
Mean CVP [mmHg]	3.5 ± 0.2	23.2 ± 1.7	23.7 ± 0.4	23.8 ± 0.8	24.8 ± 0.4	24.2 ± 0.6
Max CVP [mmHg]	5.2 ± 1.8	59.5 ± 8.4	67.9 ± 1.1	66.7 ± 1.7	69.7 ± 0.9	70.1 ± 1.2
CPP [mmHg]	98.0 ± 2.0	24.3 ± 1.4	24.1 ± 0.5	23.6 ± 1.3	21.5 ± 1.2	20.6 ± 1.5
APV [cm/s]	14.3 ± 1.0	20.0 ± 1.2	18.9 ± 0.5	17.8 ± 0.9	17.3 ± 0.9	16.0 ± 1.1

Baseline measurements and measurements during 0 - 2 min, 2 - 4 min, 4 - 6 min, 6 - 8 min and 8 - 10 min of mechanical chest compressions. AP = intrathoracic aortic pressure, CVP = Central Venous Pressure (right atrial pressure), CPP = calculated coronary perfusion pressure, APV = Average peak velocity. Data are presented as mean ± SD, n = 10.

ISSN: 1471-2261