Journal
HEART SURGERY FORUM
Volume 24, Issue 5, Pages E776-E780Publisher
FORUM MULTIMEDIA PUBLISHING, LLC
DOI: 10.1532/hsf.4073
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Funding
- Medical Science Research Project of Hebei Provincial Health Commission [20190890]
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The study demonstrated that dexmedetomidine can increase the expression level of Neuroglobin, improve cognitive function in elderly patients postoperatively, and reduce the incidence of postoperative cognitive dysfunction.
Background: To study the effect of dexmedetomidine (Dex) on the expression of Neuroglobin (Ngb) and postoperative cognitive function in elderly patients undergoing minimally invasive coronary artery bypass surgery. Methods: Forty patients, who underwent elective minimally invasive off-pump coronary artery bypass grafting in our hospital from January 2018 to December 2019, were randomly divided into the Dex group (N = 20) and control group (N = 20). Venous blood samples were taken to determine the expression level of Ngb in both groups. Mini mental status examination (MMSE) was used to detect the cognitive function of patients. Results: The expression level of Ngb in the Dex group was significantly higher than that in the control group at 6h after one-lung ventilation and postoperative 24h (P < .01). The MMSE score of the Dex group was significantly higher than the control group at postoperative 7 days and postoperative 30 days (P .01). Although with no statistical significance, the MMSE score of the Dex group was higher than the control group at postoperative 90 days (P .05). The incidence of postoperative cognitive dysfunction (POCD) in the Dex group was significantly lower than that in the control group at postoperative 7 days and postoperative 30 days (P < .05). Conclusion: Dex used in elderly patients undergoing minimally invasive coronary artery bypass graft surgery can effectively increase the expression level of Ngb and reduce the incidence of POCD.
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