Presence of chest tubes does not affect the hemodynamic efficacy of standard cardiopulmonary resuscitation

Table 2 Comparison of systolic and diastolic parameters between CCT-CPR and UCT-CPR

Parameter (mmHg)	CCT-CPR for 1st 3 min (n = 10)	UCT-CPR for 1st 3 min (n = 10)	p value	CCT-CPR for 2nd 3 min (n = 10)	UCT-CPR for 2nd 3 min (n = 10)	p value
Systolic aortic pressure (mmHg)	117 ± 69	105 ± 53	0.572	124 ± 161	104 ± 52	0.895
Diastolic aortic pressure (mmHg)	9 ± 8	11 ± 7	0.106	9 ± 8	11 ± 8	0.020
Systolic LV pressure (mmHg)	183 ± 72	164 ± 69	0.558	168 ± 77	162 ± 71	0.324
Diastolic LV pressure (mmHg)	9 ± 6	10.5 ± 7	0.102	8 ± 7	9 ± 7	0.229
Systolic RV pressure (mmHg)	184 ± 89	157 ± 83	0.075	171 ± 90	158 ± 85	0.032
Diastolic RV pressure (mmHg)	12 ± 7	12 ± 6	0.813	12 ± 6	12 ± 8	0.808
Systolic RA pressure (mmHg)	174 ± 87	149 ± 79	0.086	162 ± 91	151 ± 83	0.097
Diastolic RA pressure (mmHg)	11 ± 6	12 ± 6	0.658	11 ± 6	12 ± 6	0.333
dp/dt RV max. (mmHg/s)	747 ± 580	641 ± 500	0.544	698 ± 595	659 ± 545	0.162
dp/dt RV min. (mmHg/s)	− 657 ± 397	− 571 ± 354	0.781	− 603 ± 382	− 582 ± 370	0.313
dp/dt LV max. (mmHg/s)	751 ± 532	641 ± 500	0.813	687 ± 558	674 ± 508	0.808
dp/dt LV min. (mmHg/s)	− 681 ± 321	− 571 ± 354	0.453	−611 ± 325	− 615 ± 316	0.965

All variables are shown as mean ± standard deviation. Baseline indicates measurements before induction of cardiac arrest
CCT-CPR cardiopulmonary resuscitation with clamped chest tubes, UCT-CPR cardiopulmonary resuscitation with unclamped chest tubes, RA right atrium, RV right ventricle, LV left ventricle, max. maximum, min. minimum

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