Abstract：
:Investigations of compressive frequency, duty cycle, or waveform during CPR are typically rooted in animal research or computer simulations. Our goal was to generate a mechanical model incorporating alternate stiffness settings and an integrated blood flow system, enabling defined, reproducible comparisons of CPR efficacy. Based on thoracic stiffness data measured in human cadavers, such a model was constructed using valve-controlled pneumatic pistons and an artificial heart. This model offers two realistic levels of chest elasticity, with a blood flow apparatus that reflects compressive depth and waveform changes. We conducted CPR at opposing levels of physiologic stiffness, using a LUCAS device, a motor-driven plunger, and a group of volunteers. In high-stiffness mode, blood flow generated by volunteers was significantly less after just 2min of CPR, whereas flow generated by LUCAS device was superior by comparison. Optimal blood flow was obtained via motor-driven plunger, with trapezoidal waveform.
journal_name
Med Eng Physjournal_title
Medical engineering & physicsauthors
Eichhorn S,Spindler J,Polski M,Mendoza A,Schreiber U,Heller M,Deutsch MA,Braun C,Lange R,Krane Mdoi
10.1016/j.medengphy.2017.02.005subject
Has Abstractpub_date
2017-05-01 00:00:00pages
64-70eissn
1350-4533issn
1873-4030pii
S1350-4533(17)30057-7journal_volume
43pub_type
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journal_title：Medical engineering & physics
pub_type： 临床试验,杂志文章
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