Experiments on animals have been carried out to investigate the hemodynamic changes during manual abdominal compression (AC) under conditions of heart fibrillation and acute heart failure. The possibility to increase the efficacy of left ventricular bypass (LVB) has been studied. Manual AC enhanced the pressure and blood flow in low-pressure compartments and increased aortic systolic and diastolic pressure. It has been also noted that LVB efficacy was increased in simultaneous assisted perfusion and abdominal compression. The first clinical data confirm the experimental findings.
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