Effect of Inflation
- Volume displacement results in increased diastolic pressure (30%): 1
- Increases coronary perfusion pressure and flow 1
- Increases myocardial oxygen delivery 1
- Higher mean pressure increases renal and systemic perfusion 1
Effect of Deflation
- Decreased afterload 1, and thus systolic pressure (10%), immediately following deflation:
- Vacuum like effectpromotes forward flow and increases stroke volume 1
- Decreases end diastolic volume and ventricular wall stress 1
- Reduces myocardial oxygen demand 1
Overall Effects
- Improved ratio of myocardial oxygen supply to myocardial oxygen demand
- Improved myocardial performance and increased cardiac output (up to 20%) 1