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[Microcirculatory dysfunction after cardiac surgery: Interest of NIRS technology with two case reports]
J-B Bouchet1, E Durand, J Morel
1Service d'anesthésie-réanimation, hôpital Nord, CHU de Saint-Étienne, université Jean-Monnet, 42055 Saint-Étienne cedex 2, France.
Annales Francaises D'Anesthesie Et De Reanimation
|May 24, 2011
Summary
Near infrared spectroscopy (NIRS) can monitor microcirculatory dysfunction after cardiac surgery. Decreased StO(2) and reperfusion slope indicate early cardiac dysfunction, highlighting NIRS
Area of Science:
- Physiology
- Biomedical Engineering
- Medical Technology
Background:
- Microcirculatory dysfunction is observed following cardiac surgery using cardiopulmonary bypass.
- Assessing microcirculation is crucial for understanding patient outcomes post-cardiac surgery.
Observation:
- Two case studies monitored tissue oxygen saturation (StO(2)) and reperfusion slope using near-infrared spectroscopy (NIRS).
- An ischemic challenge was applied to assess microcirculatory response.
Findings:
- Both StO(2) and reperfusion slope were found to be early indicators of cardiac dysfunction.
- A decrease in StO(2) and reperfusion slope correlated with impaired cardiac function.
Implications:
- NIRS offers a valuable, non-invasive method for monitoring microcirculatory changes in real-time.
- These findings suggest NIRS can aid in the early detection and management of cardiac dysfunction post-surgery.
