Table 1.

Haemodynamic measurements of the different rates of elevation during ACD + ITD CPR.

N = 24	Baseline				7 Minutes CPR				18 Minutes CPR
Rise Time Group	10-Minute	4-Minute	2-Minute	24-Seconds	10-Minute	4-Minute	2-Minute	24-Seconds	10-Minute	4-Minute	2-Minute	24-Seconds
AO Systolic	87±17	88±16	75±7	77±8	66±4	81±1*	85±14	55±9	69±13	79±27	80±20	74±24
AO Diastolic	73±15	74±15	68±30	63±7	45±2	55±20	59±14	42±12	48±14	55±28	59±22	52±19
ICP Diastolic	16±2	15±2	13±6	14±3	11±3	9±5	12±4	7±3	7±2	6±3	7±4	5±5
RA Systolic	1±5	3±5	5±0.9	4±4	56±4	74±13	59±15	70±13	65±14	73±12	57±13	70±18
RA Diastolic	1±6	4±5	11±15	4±4	7±3	4±3	10±6	6±2	7±5	3±3	9±8	7±6
CerPP Mean	64±15	66±17	62±8	59±8	39±4	53±14*	53±15	32±12	46±13	57±19	58±20	54±20
CorPP	72±20	70±17	73±8	67±5	38±3	51±20	48±17	30±11	40±14	52±28	50±20	45±15
ITP Diastolic	3±1	3±1	2±0.3	3±1	−4±1	−5±1	−4±2	−4±2	−3±1	−4±1	−5±3	−5±3
ETCO2 Mean	44±2	44±1	44±2	43±1	51±10	50±6	52±6	42±7	50±8	47±8	49±7	46±8

Values are mean ± standard deviation.

Abbreviations: active compression decompression (ACD), aortic pressure (Ao), cerebral perfusion pressure (CerPP), coronary perfusion pressure (CorPP), end tidal CO2 (ETCO2), intracranial pressure (ICP), intrathoracic pressure (ITP), right atrial pressure (RAP), systole or compression phase (sys), diastole or decompression phase (dias).

^*p≤0.05 when comparing 4-min vs 10-min controlled sequence elevation groups.