Systemic Hemodynamic Response to Aortic Unclamping Systemic Hemodynamic Response to Aortic Unclamping

Flowchart

AoX Passive Recoil
Distal to Clamp Passive Recoil Distal to Clamp Catecholamines
Increased (and Other
Vasoconstrictors) Catecholamines Increased  (and Other Vasoconstrictors) Impedance to
Increased Ao Flow Impedance to Increased  Ao Flow AoX Passive Recoil
Distal to Clamp Passive Recoil Distal to Clamp Passive Recoil
Distal to Clamp
Passive Recoil Distal to Clamp Catecholamines
Increased (and Other
Vasoconstrictors) Catecholamines Increased  (and Other Vasoconstrictors) Catecholamines
Increased (and Other
Vasoconstrictors)

Catecholamines Increased  (and Other Vasoconstrictors) Impedance to
Increased Ao Flow Impedance to Increased  Ao Flow Impedance to
Increased Ao Flow
Impedance to Increased  Ao Flow Catecholamines
Increased (and Other
Vasoconstrictors) Catecholamines
Increased (and Other
Vasoconstrictors)

Active
Venoconstriction
Proximal and
Distal to Clamp Active Venoconstriction Proximal and Distal to Clamp Increased R Art Increased  R Art Active
Venoconstriction
Proximal and
Distal to Clamp Active Venoconstriction Proximal and Distal to Clamp Active
Venoconstriction
Proximal and
Distal to Clamp


Active Venoconstriction Proximal and Distal to Clamp Increased R Art Increased  R Art Increased R Art Increased  R Art Active
Venoconstriction
Proximal and
Distal to Clamp Active
Venoconstriction
Proximal and
Distal to Clamp


Increased Preload Increased Preload Increased Contractility Increased Coronary Flow Increased  Coronary Flow If Coronary Flow
and Contractility
Increase If Coronary Flow and Contractility Increase If Coronary Flow
and Contractility
Do Not Increase If Coronary Flow and Contractility Do Not Increase Increased Contractility Increased Coronary Flow Increased  Coronary Flow Increased Coronary Flow Increased  Coronary Flow If Coronary Flow
and Contractility
Increase If Coronary Flow and Contractility Increase If Coronary Flow
and Contractility
Increase

If Coronary Flow and Contractility Increase If Coronary Flow
and Contractility
Do Not Increase If Coronary Flow and Contractility Do Not Increase If Coronary Flow
and Contractility
Do Not Increase

If Coronary Flow and Contractility Do Not Increase If Coronary Flow
and Contractility
Increase If Coronary Flow
and Contractility
Increase

CO Increased CO Increased CO Decreased CO Decreased Increased R Art Increased R Art Increased Afterload Increased Afterload Passive Recoil
Distal to Clamp Passive Recoil
Distal to Clamp
Impedance to
Increased Ao Flow Impedance to
Increased Ao Flow