Evidence for the ‘Cardiac Pump Theory’ in cardiopulmonary resuscitation in man by transesophageal echocardiography

Optimal position for external chest compression during cardiopulmonary resuscitation: an analysis based on chest CT in patients resuscitated from cardiac arrest

“…On the other hand, the thoracic pump theory suggests that the circulation is generated by the difference between the external and internal thoracic pressure when the chest is compressed, with the heart simply serving as a pathway for blood flow 15–17. Several recent studies using transoesophageal echocardiography have provided evidence that artificial circulation during CPR can be attributed to the direct compression of the heart, which supports the cardiac pump theory as the main circulatory mechanism during CPR 13 14 18 19. According to the cardiac pump theory, it is speculated that the left ventricle should be compressed as much as possible for most effective circulation.…”

Optimal position for external chest compression during cardiopulmonary resuscitation: an analysis based on chest CT in patients resuscitated from cardiac arrest

“…On the other hand, the thoracic pump theory suggests that the circulation is generated by the difference between the external and internal thoracic pressure when the chest is compressed, with the heart simply serving as a pathway for blood flow 15–17. Several recent studies using transoesophageal echocardiography have provided evidence that artificial circulation during CPR can be attributed to the direct compression of the heart, which supports the cardiac pump theory as the main circulatory mechanism during CPR 13 14 18 19. According to the cardiac pump theory, it is speculated that the left ventricle should be compressed as much as possible for most effective circulation.…”

What Is the Correct Depth of Chest Compression for Infants and Children? A Radiological Study

“…[5][6][7][8][9][10][11] We found that compressions at either the lower half of the sternum or the internipple line in the pediatric popu- (Table 2). This finding was different from previous research in adults in which compressions at either the lower half of the sternum or the internipple line led to compressions on the aorta rather than the heart.…”

Rescuer factors predict high-quality CPR—a manikin-based study of health care providers

“…A chest compression is a piston-like move to transfer perpendicular force to the patients' chest wall, which changes the intrathoracic and ventricular volume and pressure, resulting in blood flow in and out of the chest [15,16]. From a biomechanical point of view, one should press using upper body weight to increase the force of the compression.…”

Optimal position for external chest compression during cardiopulmonary resuscitation: an analysis based on chest CT in patients resuscitated from cardiac arrest

“…On the other hand, the thoracic pump theory suggests that the circulation is generated by the difference between the external and internal thoracic pressure when the chest is compressed, with the heart simply serving as a pathway for blood flow 15–17. Several recent studies using transoesophageal echocardiography have provided evidence that artificial circulation during CPR can be attributed to the direct compression of the heart, which supports the cardiac pump theory as the main circulatory mechanism during CPR 13 14 18 19. According to the cardiac pump theory, it is speculated that the left ventricle should be compressed as much as possible for most effective circulation.…”

What Is the Correct Depth of Chest Compression for Infants and Children? A Radiological Study

“…[5][6][7][8][9][10][11] We found that compressions at either the lower half of the sternum or the internipple line in the pediatric popu- (Table 2). This finding was different from previous research in adults in which compressions at either the lower half of the sternum or the internipple line led to compressions on the aorta rather than the heart.…”

Rescuer factors predict high-quality CPR—a manikin-based study of health care providers

“…A chest compression is a piston-like move to transfer perpendicular force to the patients' chest wall, which changes the intrathoracic and ventricular volume and pressure, resulting in blood flow in and out of the chest [15,16]. From a biomechanical point of view, one should press using upper body weight to increase the force of the compression.…”

Optimal position for external chest compression during cardiopulmonary resuscitation: an analysis based on chest CT in patients resuscitated from cardiac arrest

“…On the other hand, the thoracic pump theory suggests that the circulation is generated by the difference between the external and internal thoracic pressure when the chest is compressed, with the heart simply serving as a pathway for blood flow 15–17. Several recent studies using transoesophageal echocardiography have provided evidence that artificial circulation during CPR can be attributed to the direct compression of the heart, which supports the cardiac pump theory as the main circulatory mechanism during CPR 13 14 18 19. According to the cardiac pump theory, it is speculated that the left ventricle should be compressed as much as possible for most effective circulation.…”

What Is the Correct Depth of Chest Compression for Infants and Children? A Radiological Study

“…[5][6][7][8][9][10][11] We found that compressions at either the lower half of the sternum or the internipple line in the pediatric popu- (Table 2). This finding was different from previous research in adults in which compressions at either the lower half of the sternum or the internipple line led to compressions on the aorta rather than the heart.…”

Rescuer factors predict high-quality CPR—a manikin-based study of health care providers

“…A chest compression is a piston-like move to transfer perpendicular force to the patients' chest wall, which changes the intrathoracic and ventricular volume and pressure, resulting in blood flow in and out of the chest [15,16]. From a biomechanical point of view, one should press using upper body weight to increase the force of the compression.…”