Active compression-decompression resuscitation: Analysis of transmitral flow and left ventricular volume by transesophageal echocardiography in humans

摘要: Objectives. This study was designed to test the hypothesis that active compression-decompression cardiopulmonary resuscitation increase transmitral flow and end-decompression left ventricular volume over levels achieved with standard manual resuscitation. p]Background. Recently, incorporating compression decompression of chest has been demonstrated improve hemodynamic status in a canine model humans after cardiac arrest. Methods. The device applied midsternum five consecutive patients results compared sequentially (in random order) those Both techniques were performed at 80 compressions/min 1.5- 2-in. (3.8 5.1 cm) depth 50% duty cycle. Transesophageal echocardiographic data obtained each patient included velocity-time integral pulsed Doppler recordings two-dimensional images ventricle long-axis view. Planimetric measurements both end-compression end-decompression. Results. No difference observed between two (p = 0.81). Increased (active technique 81.3 ± 12.5 vs. 69.4 10.8, p < 0.05), stroke 32.6 6.8 17.6 5.2, 0.05) 15.8 4.3 7.8 2.3, found group. highly correlated (r 0.90). Conclusions. Improved flow, are seen resuscitation, suggesting biphasic cardiothoracic cycle flow. Active appears be beneficial adjunct