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[Change of the cognitive function after open heart surgery]
A Konishi1, K Kikuchi, T Igarashi
1Department of Anesthesia, New Tokyo Hospital, Matsudo.
Masui. the Japanese Journal of Anesthesiology
|August 1, 1995
Summary
Cognitive decline after open heart surgery is common, particularly in older patients. Factors like age and pre-existing conditions significantly impact postoperative cognitive function and hospital stay.
Area of Science:
- Cardiovascular Surgery
- Neuroscience
- Geriatrics
Context:
- Open heart surgery patients (average age 61.7 years) were assessed for cognitive function changes.
- Hasegawa's Dementia Scale was used to evaluate cognitive status preoperatively and on postoperative days 1 and 7.
Purpose:
- To examine cognitive function changes following open heart surgery.
- To identify perioperative factors associated with postoperative cognitive decline.
Summary:
- 34% of patients experienced cognitive decline on postoperative day 1, with 10% still affected on day 7.
- Significant differences between non-decline and decline groups included age, transfusion volume, extubation time, preoperative complications, and postoperative cardiac index.
- Age was identified as a major factor, alongside general patient condition and cardiac function.
Impact:
- Cognitive decline is linked to increased length of hospitalization.
- Findings suggest age and patient's overall health status are critical in preventing postoperative cognitive dysfunction.