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[Changes in serum lipid peroxide concentration in open heart surgery]
1Department of Anesthesiology, First Clinical Medical College, Xi'an Medical University.
Ma Zui Xue Za Zhi = Anaesthesiologica Sinica
|June 1, 1993
Summary
Open heart surgery patients showed lower serum lipid peroxide (LPO) levels during and after the procedure. Myocardial protection strategies likely contribute to these reduced LPO concentrations.
Area of Science:
- Biochemistry
- Cardiovascular Surgery
- Oxidative Stress
Context:
- Open heart surgery involves ischemia-reperfusion injury, leading to oxygen free radical release.
- This can cause post-operative complications like low cardiac output and arrhythmias.
- Monitoring serum lipid peroxide (LPO) offers insights into myocardial protection effectiveness.
Purpose:
- To quantify changes in serum lipid peroxide (LPO) concentrations during open heart surgery.
- To investigate the rhythm of these changes in relation to surgical events.
- To identify potential measures for effective myocardial protection.
Summary:
- Serum LPO concentrations were measured in 72 patients at multiple time points during open heart surgery.
- A fluorescent spectrophotometric method was employed to detect LPO variations.
- Intraoperative serum LPO levels were significantly lower than pre-induction levels (P < 0.01).
Impact:
- Findings suggest that myocardial protection methods, including hypothermia and hemodilution, may lower LPO concentrations.
- Serum LPO concentrations at the end of the procedure were not significantly different from pre-induction levels (P > 0.05).
- This study provides valuable data for understanding oxidative stress markers and optimizing cardiac surgical protection strategies.