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[The effect of beating heart intracardiac procedures on postoperative cognitive function and S100b release: analysis
Chuan-han Zhang1, Xian-hua Li, Lin Chen
1Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China. chzhang@tjh.tjmu.edu.cn
Insights
Beating heart surgery did not reduce early cognitive dysfunction or S100b release compared to cardiac arrest procedures. This study found no significant difference in outcomes between the two surgical methods for intracardiac procedures.
Area of Science:
- Cardiovascular Surgery
- Neuroscience
- Biochemistry
Background:
- Cardiac surgery can impact cognitive function and release biomarkers like S100b.
- Investigating minimally invasive techniques like beating heart surgery is crucial for patient outcomes.
Purpose of the Study:
- To compare the effects of beating heart versus cardiac arrest intracardiac procedures on postoperative cognitive function.
- To assess the impact of these surgical approaches on serum S100b levels.
Main Methods:
- Fifty-one patients (15-45 years) underwent intracardiac procedures under cardiac arrest or beating heart conditions.
- Neuropsychological tests and serum S100b measurements were performed preoperatively and postoperatively.
- Postoperative cognitive dysfunction (POCD) was defined by impairment in two or more cognitive tests.
Main Results:
- The incidence of POCD was similar between the arrested heart group (42.9%) and the beating heart group (34.8%).
- Serum S100b levels 24 hours post-surgery showed no significant difference between the two groups.
- No statistically significant difference was observed in cognitive function or S100b release between surgical methods.
Conclusions:
- Beating heart intracardiac procedures do not appear to decrease the incidence of early postoperative cognitive dysfunction.
- This surgical approach does not significantly reduce the release of the S100b biomarker.
- Current evidence suggests no advantage of beating heart over arrested heart procedures regarding early cognitive outcomes and S100b release.
Objective:
To investigate the effect of beating heart intracardiac procedures on postoperative cognitive function and S100b release.
Methods:
Fifty-one patients, aged 15 - 45, were divided into 2 groups to undergo intracardiac procedures under the conditions of cardiac arrest (n = 29, including 14 isolated valve replacement patients and 14 interauricular or interventricular septum repair patients) or beating heart (n = 23, all undergoing interauricular or interventricular septum repair). Before the operation and 7 days after the operation, a battery of neuropsychological tests, using trail making test, Wechsler memory scale, and Wechsler adult intelligence scale, was conducted. Forty healthy sex and age-matched volunteers underwent the same neuropsychological tests. The cognitive function impairment was evaluated by calculating the modified reliable change indices (MRCI). Cognitive function impairment in 2 or more items of the tests was defined as postoperative cognitive dysfunction (POCD. Blood samples were collected preoperatively and 24 h after cardiac surgery to measure the serum S100b by ELISA.
Results:
The incidence of POCD in the arrested heart group was 42.9%, not significantly different from that of the beating heart group (34.8%, P > 0.05). The concentration of serum S100b 24 hours after cardiac surgery of the beating heart group was 0.37 +/- 0.17 microg/L, not ignorantly different from that of the arrested heart group (0.35 +/- 0.18 microg/L, P > 0.05).
Conclusion:
Beating heart intracardiac procedures does not decrease the incidence of early cognitive dysfunction after cardiac surgery, and does not reduce the release of S100b.
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