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Correspondence
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Volume 329:1965-1966 December 23, 1993 Number 26
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Aortic-Valve Function during Cardiopulmonary Resuscitation

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To the Editor: Cardiac output during standard manual cardiopulmonary resuscitation (CPR) is 30 to 60 percent of the normal value1. A study in animals2 demonstrated improved systemic blood flow and increased coronary perfusion pressure during active compression-decompression CPR. In humans, a significantly higher systolic arterial pressure has been measured during active compression-decompression CPR than during standard CPR3. The newer technique produces negative intrathoracic pressure during the decompression phase, thereby improving venous return and transmitral left ventricular filling1,2,3 [see Cohen et al. elsewhere in this issue].

In an adult patient undergoing prolonged CPR after nearly drowning, we monitored aortic-valve . . . [Full Text of this Article]

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