The physiology of cerebral blood flow during cardiopulmonary resuscitation
نویسندگان
چکیده
منابع مشابه
Mechanisms of Blood Flow During Cardiopulmonary Resuscitation
Despite the widespread clinical appliciktion of cardiopulmonary resuscitation (CPR), the mechanism responsible for blood flow during this maneuver remains undefined, although it has been assumed that blood is squeezed from the heart by direct compression of the sternum. We studied the hemodynamics of CPR in 15 arrested dogs. During chest compression, pressures in the left ventricle, aorta, righ...
متن کاملMechanisms of blood flow during cardiopulmonary resuscitation.
Despite the widespread clinical appliciktion of cardiopulmonary resuscitation (CPR), the mechanism responsible for blood flow during this maneuver remains undefined, although it has been assumed that blood is squeezed from the heart by direct compression of the sternum. We studied the hemodynamics of CPR in 15 arrested dogs. During chest compression, pressures in the left ventricle, aorta, righ...
متن کاملCerebral blood flow during cardiopulmonary bypass.
In a study of the cerebral consequences of cardiopulmonary bypass (CPB), we have assessed cerebral blood flow (CBF) by intra-arterial Xenon 133 clearance, utilising a Novocerebrograph 10a, before, during and immediately following CPB. All patients (n = 51), under the care of a single surgical team underwent elective coronary revascularisation using a standardised anaesthetic and surgical protoc...
متن کاملPhysiology of blood flow during cardiopulmonary resuscitation. A transesophageal echocardiographic study.
BACKGROUND There are two competing theories of the mechanism of blood flow during cardiopulmonary resuscitation. The "cardiac pump" theory postulates that blood flows because the heart is squeezed between the sternum and the spine. The "thoracic pump" theory postulates that blood flows from the thorax because intrathoracic pressure exceeds extrathoracic vascular pressure and that flow is restri...
متن کاملCARDIOPULMONARY RESUSCITATION Determinants of blood flow to vital organs during cardiopulmonary resuscitation in dogs
Whether blood flow during cardiopulmonary resuscitation (CPR) results from intrathoracic pressure fluctuations or direct cardiac compression remains controversial. From modeling considerations, blood flow due to intrathoracic pressure fluctuations should be insensitive to compression rate over a wide range, but dependent on the applied force and compression duration. If direct compression of th...
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ژورنال
عنوان ژورنال: Canadian Journal of Anaesthesia
سال: 1988
ISSN: 0832-610X,1496-8975
DOI: 10.1007/bf03026922