The Hypotension Prediction Index Versus Standard Advanced Haemodynamic Monitoring in Patients Undergoing Major Aortic Surgery

Exclusion Criteria

• •1. Emergency or urgent surgery
• •2. Pregnancy or breastfeeding or positive/uncertain pregnancy test
• •3. Haemodynamically significant valvular heart disease:
• •* Severe aortic stenosis (aortic valve area \< 1.5 cm\^2)
• •* Moderate to severe aortic regurgitation
• •* Moderate to severe mitral regurgitation
• •* Moderate to severe mitral stenosis
• •4. Severe heart failure with left ventricular ejection fraction \< 35%
• •5. Permanent atrial fibrillation (reduces accuracy of pulse contour analysis)
• •6. Inability to provide informed consent
• •7. Participation in another interventional trial that may influence haemodynamic management or study outcomes