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[Haemodynamic changes in infrarenal aortic aneurysm operations (author's transl)]
Der Anaesthesist
|April 1, 1982
Summary
Aortic cross-clamping during surgery for abdominal aortic aneurysm causes harmful hemodynamic changes. Continuous nitroglycerin infusion effectively reverses these effects, improving patient outcomes.
Area of Science:
- Cardiovascular Surgery
- Anesthesiology
- Vascular Surgery
Context:
- Abdominal aortic aneurysm repair often involves aortic cross-clamping.
- This procedure can lead to significant hemodynamic alterations.
- Close monitoring of cardiovascular function is crucial during surgery.
Purpose:
- To investigate the hemodynamic changes associated with infrarenal aortic cross-clamping.
- To evaluate the efficacy of nitroglycerin in reversing these changes.
Summary:
- Hemodynamic monitoring in 11 patients undergoing infrarenal aortic aneurysm repair revealed increased systemic vascular resistance, mean arterial pressure, and pulmonary capillary wedge pressure, alongside a decreased cardiac index after aortic cross-clamping.
- Heart rate and right atrial pressure remained largely unchanged.
- Continuous nitroglycerin infusion successfully reversed these adverse hemodynamic effects, increasing cardiac index.
Impact:
- Highlights the importance of meticulous hemodynamic monitoring during aortic cross-clamping to prevent cardiac complications.
- Demonstrates that nitroglycerin infusion is an effective intervention to manage hemodynamic instability caused by aortic cross-clamping.