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Cognitive dysfunction following cardiovascular surgery
Manabu Sakurai1, Yoshiharu Takahara, Shigeyasu Takeuchi
1Division of Cardiovascular Surgery, Funabashi Municipal Medical Center, Funabashi, Chiba, Japan.
The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyobu Geka Gakkai Zasshi
|June 15, 2005
Summary
Age is the primary predictor of cognitive dysfunction after cardiovascular surgery, not cardiopulmonary bypass (CPB). This study evaluated cognitive changes and risk factors in patients undergoing cardiac procedures.
Area of Science:
- Cardiology
- Neurology
- Geriatrics
Background:
- Cardiovascular surgery can lead to perioperative cognitive dysfunction.
- Cardiopulmonary bypass (CPB) is a potential risk factor for cognitive impairment.
Purpose of the Study:
- To evaluate perioperative cognitive dysfunction in patients undergoing cardiovascular surgery.
- To identify risk factors for cognitive dysfunction, including the role of CPB.
Main Methods:
- 192 patients undergoing elective cardiovascular surgery were assessed pre- and postoperatively using the Hasegawa dementia scale.
- Patients were divided into two groups: Group A (postoperative cognitive dysfunction) and Group B (control).
Main Results:
- Older age and a higher prevalence of cerebrovascular disease risk factors were associated with cognitive dysfunction.
- No significant differences in CPB use, duration, or operation length were found between groups.
- Age was the sole significant predictor of postoperative cognitive dysfunction in multivariate analysis.
Conclusions:
- Cardiopulmonary bypass (CPB) may not significantly contribute to cognitive dysfunction after cardiovascular surgery.
- Advanced age is the primary identified risk factor for postoperative cognitive dysfunction.