Cognitive Impairment Clinical Trial
Official title:
Effect of Dexmedetomidine on Serum Tau-217 Protein as a Biomarker for Post-operative Cognitive Dysfunction in Elderly Patients.
To assess the effect of Dexmedetomidine on serum Tau-217 protein and its relation to the incidence and severity of postoperative cognitive dysfunction in elderly patients undergoing major surgery under general anesthesia.
to assess the effect of dexmedetomidine on serum Tau-217 protein through measuring serum Tau-217 protein preoperative and postoperative period and comparing the 2 measurements , assessing the cognitive dysfunction in the elderly patients and comparing the correlation between the cognitive dysfunction with serum tau-217 level also assessing the neuroprotective effect of dexmedetomidine on postoperative cognitive dysfunction and its relation with serum Tau-217 level. ;
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