{
  "abstract": "Introduction Postoperative delirium (POD) is a common and serious complication after cardiac surgery, particularly in elderly patients, and is associated with adverse short- and long-term outcomes. Effective preventive strategies remain limited. Liraglutide, a glucagon-like peptide-1 receptor agonist, has demonstrated potential neuroprotective, anti-inflammatory and metabolic benefits, which may reduce the incidence of POD.Methods and analysis This is a single-centre, randomised, double-blind, placebo-controlled trial in elderly patients undergoing elective cardiac surgery. Participants will be randomised in a 1:1 ratio to receive liraglutide or placebo from the day before surgery until postoperative day 3. A total of 260 patients are planned to be enrolled in this study. The primary endpoint is the incidence of POD within 7 days, assessed using the Confusion Assessment Method (CAM) or CAM-intensive care unit. Secondary outcomes include delirium severity, neurocognitive and psychological function, cardiac function, clinical outcomes, major adverse cardiovascular events within 1 year and perioperative biomarker changes. Exploratory outcomes include functional MRI in selected subgroups and additional biomarker analyses.Ethics and dissemination The protocol has been approved by the Medical Ethics Committee of Nanjing Drum Tower Hospital. Written informed consent will be obtained from all participants. Findings will be disseminated in peer-reviewed journals and academic conferences.Trial registration number ChiCTR2500106943.",
  "authors": [
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Shengwei Bai"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University of Chinese Medicine Drum Tower Clinical College, Nanjing, China"
      ],
      "name": "Ming Wei"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University of Chinese Medicine Drum Tower Clinical College, Nanjing, China"
      ],
      "name": "Ying Wu"
    },
    {
      "affiliations": [
        "Department of Anesthesiology, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Xuewen Zhu"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Zheyun Wang"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Yan Wang"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Cuicui Zhu"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Yan Guan"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Dongjin Wang"
    },
    {
      "affiliations": [
        "Department of Cardio-Thoracic Surgery, Nanjing University Medical School Affiliated Nanjing Drum Tower Hospital, Nanjing, China"
      ],
      "name": "Wenxue Liu"
    }
  ],
  "title": "Preventive effect of liraglutide on postoperative delirium in elderly patients undergoing cardiac surgery: protocol for a single-centre, randomised, double-blind, placebo-controlled trial",
  "uid": "23e4f04c-2271-5b3f-abcc-ea113bc0a842"
}