Abstract—
The effect of dual-task cognitive training on neurophysiological parameters of patients with postoperative cognitive dysfunction (POCD) in the early postoperative period of coronary artery bypass grafting (CABG) under cardiopulmonary bypass was examined. The study involved 96 male patients who underwent CABG. All patients underwent a detailed neuropsychological and electroencephalogram (EEG) analysis before and after CABG. On day 2 or 3 after surgery, all patients were diagnosed with POCD and randomly divided into two groups: a group who received training (n = 54) and a group with no training (n = 42). From days 3–4 of the postoperative period, a daily course of dual-task training (simultaneous performance of cognitive and physical tasks) was carried out. Repeated diagnostics for POCD was carried out at the end of the training course, on days 8–11. It was demonstrated that patients who successfully completed the training course (with no POCD on days 8–11) showed a postoperative power decrease in θ1-rhythm, while in all patients with POCD, these indices increased compared to preoperative data. Topographic changes in θ1 rhythm were detected in the left parietal areas, which may be indicative of the impaired perfusion in these regions of the brain.
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Funding
The study was supported by the Ministry of Education and Science of the Russian Federation (basic topic no. 122012000364-5 dated January 20, 2022). There was no sponsor involvement in the study design; collection, analysis, and interpretation of the data; in writing of the report; or in the decision to submit it for publication.
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D.S. Kupriyanova, manuscript writing, collection and processing of the experimental data, statistical treatment. I.V. Tarasova, concept and design of the study, statistical treatment, writing and editing the manuscript. О.А. Trubnikova, concept and design of the study, editing the text of the manuscript, approval of the final version of the manuscript. A.S. Sosnina, collection and processing of the experimental data. I.N. Kukhareva, collection and processing of the experimental data. I.D. Syrova, collection and processing of the experimental data. O.L. Barbarash, critical analysis of intellectual content, approval of the final version of the manuscript.
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Statement of compliance with standards of research involving humans as subjects. All studies were carried out in accordance with the principles of biomedical ethics formulated in the Declaration of Helsinki of 1964 and its subsequent updates. The research program was approved by the Local Commission on Biomedical Ethics of the Research Institute for Complex Issues of Cardiovascular Diseases (Kemerovo). Each participant in the study provided a signed voluntary written informed consent after explaining the potential risks and benefits, as well as the nature of the upcoming study.
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Kupriyanova, D.S., Tarasova, I.V., Trubnikova, O.A. et al. Neurophysiological Parameters in Patients after Coronary Bypass Grafting Depending on the Success of Dual-Task Rehabilitation. Hum Physiol 49, 107–114 (2023). https://doi.org/10.1134/S0362119722700165
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DOI: https://doi.org/10.1134/S0362119722700165