Mitral regurgitation, perioperative hemodynamic goals
Mitral regurgitation`
Heart rate/rhythm
Preload/contractility
Systemic and pulmonary vascular resistance
Heart rate/rhythm
- Low heart rates are deleterious: 80-100 beats/min (sinus rhythm) ideal range
- Patients often present with atrial fibrillation
Preload/contractility
- Maintain preload and contractility
Systemic and pulmonary vascular resistance
- Decrease in left ventricular afterload (decrease in systemic vascular resistance) can reduce the degree of regurgitation through the valve
- Pulmonary hypertension may occur with chronic mitral regurgitation (often combined with mitral stenosis) and require pharmacological treatment