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. Author manuscript; available in PMC: 2022 Aug 9.
Published in final edited form as: Resuscitation. 2020 Jan 21;149:162–169. doi: 10.1016/j.resuscitation.2019.12.011

Figure 1.

Figure 1.

a Study timeline for Protocol A and B. Pigs were studied with elevation rise times of 2-, 4-, and 10-minutes, respectively.

b Study timeline for Protocol C. Pigs were studied with elevation rise time of 24 seconds, without CPR prior to elevation of the head and thorax.

Abbreviations: active compression decompression (ACD) plus impedance threshold device (ITD), cardiopulmonary resuscitation (CPR), customized head and thorax elevation device (CED), ventricular fibrillation (VF), basic life support (BLS), advanced life support (ALS), return of spontaneous circulation (ROSC).

* When the pig was in the lowest CED elevation the heart was elevated 7 cm and the midbrain 10 cm.

** When the pig was in the highest CED elevation the heart was elevated 8 cm and the midbrain 22 cm.