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[The relationship between the deep body temperature and hemodynamics after open-heart surgery]
E Tabo1, T Kaminosono, G Hamami
1Department of Anesthesiology, Ehime University School of Medicine.
Masui. the Japanese Journal of Anesthesiology
|August 1, 1991
Summary
The forehead-sole deep body temperature difference can monitor circulation after heart surgery. A difference exceeding 4 degrees Celsius indicates a critical low cardiac index in patients.
Area of Science:
- Cardiovascular Physiology
- Surgical Monitoring
Context:
- Post-open-heart surgery patients require continuous hemodynamic monitoring.
- Assessing circulatory function is crucial for patient outcomes.
Purpose:
- To investigate the correlation between forehead-sole deep body temperature difference and hemodynamic parameters like cardiac index (CI) and systemic vascular resistance index (SVRI).
- To determine if deep body temperature difference can serve as a reliable indicator of circulatory status in post-cardiac surgery patients.
Summary:
- A study of 61 adult patients post-open-heart surgery found significant correlations between deep body temperature difference and CI (r=0.48) and SVRI (r=0.52).
- The deep body temperature difference was 1.8°C for CI ≥ 2.2 L/min/m² and 4.3°C for CI < 2.2 L/min/m².
- A deep body temperature difference greater than 4°C was associated with a CI below 2.2 L/min/m².
Impact:
- The study suggests that measuring the deep body temperature difference is a valuable, non-invasive method for monitoring circulatory function in post-operative cardiac patients.
- Establishing a critical threshold of 4°C for deep body temperature difference can aid in early detection of compromised circulation.