Cardiac Surgical Procedures Clinical Trial
— CAESAROfficial title:
Perioperative Blood Glucose Variability and Autonomic Nervous System Activity in On-pump Cardiac Surgery Patients: Study Protocol of a Single-center Observational Study.
NCT number | NCT05454735 |
Other study ID # | 2021/616 |
Secondary ID | |
Status | Recruiting |
Phase | |
First received | |
Last updated | |
Start date | October 10, 2022 |
Est. completion date | December 1, 2023 |
On-pump coronary artery bypass graft (CABG) and valve replacement surgeries are high-risk procedures. Among the risk factors for postoperative complications, perioperative hyperglycemia and blood glucose variability have been reported to be associated with increased morbidity and mortality. The treatment of hyperglycemia using intravenous insulin infusion improves the prognosis in cardiac surgery patients. However, the determinants of postoperative blood glucose variability and the mechanisms leading to its deleterious impact are unknown. Thus, to date, there is no therapeutic intervention that could effectively prevent and treat the deleterious impact of glycemic variability on postoperative outcome. The purpose of the study is to evaluate whether perioperative alteration of the autonomic nervous system and preoperative blood glucose variability could be related to perioperative glycemic variability.
Status | Recruiting |
Enrollment | 120 |
Est. completion date | December 1, 2023 |
Est. primary completion date | September 1, 2023 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years to 80 Years |
Eligibility | Inclusion Criteria: - Planned cardiac surgery - Age = 18 years old and < 80 years old - Group 1: patients with known insulin-requiring type 2 diabetes mellitus undergoing planned on-pump coronary artery bypass surgery - Group 2: patients with known non-insulin-requiring type 2 diabetes mellitus undergoing planned on-pump coronary artery bypass surgery - Group 3: non-diabetic patients undergoing planned aortic valve replacement surgery - Group 4: non-diabetic patients undergoing planned on-pump coronary artery bypass surgery Exclusion Criteria: - Emergent surgery (less than 48 hours between anesthestetic consultation and surgery) - Combined surgery (coronary artery bypass graft associated with valve surgery, multiple valve replacement, surgery of the ascending aorta) - Extreme weight: body mass index (BMI) > 35 kg.m-2 or < 18 kg.m-2. - Off-pump coronary artery bypass graft surgery - Type 1 diabetes mellitus - Patient unable to consent - Pregnant and/or breastfeeding woman - Permanent preoperative chronic heart rhythm disorder - Pacemaker - Unstable patient condition in preoperative period - Expected life expectancy less than 48 hours. - Subject unlikely to cooperate in the study and/or low cooperation anticipated by the investigator. - Duration of continuous preoperative glycemic recording of less than 48 hours. |
Country | Name | City | State |
---|---|---|---|
France | Post operative intensive care unit of the cardiac surgery department | Besançon |
Lead Sponsor | Collaborator |
---|---|
Centre Hospitalier Universitaire de Besancon |
France,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Glycemic variability, measured by subcutaneous blood glucose continuous monitoring sensor, calculated by the coefficient of glycemic variability | Continuous blood glucose monitoring using a subcutaneous blood glucose continuous monitoring sensor (FreeStyle Libre Pro) | From 14 days before surgery (at least 48 hours before surgery) to 7 days after surgery | |
Secondary | Autonomic nervous system activity, measured by non-invasive continuous heart rate monitoring, calculated by measuring the R-R interval | Continuous non-invasive continuous heart rate monitoring using the MooKy HR memory device will allow the continuous measurement of the R-R interval and the R-R interval variability to quantify the activity of the autonomic nervous system. | From the day before surgery (at admission in the cardiac surgery department the day before surgery) to Day 3 after surgery | |
Secondary | Vasopressine blood level | Vasopressine blood level will be measured from blood samples to assess the relationship between blood glucose variability and endothelial dysfunction. | The day before surgery, at admission in the postoperative intensive care unit, at day 1 and at day 2 after surgery | |
Secondary | Autonomic nervous system activity | Compass 31 scale: the Compass 31 scale is a validated clinical scale that allows to identify the degree au autonomic nervous system dysfunction. | The day before surgery. | |
Secondary | Endocan blood level | Endocan blood level will be measured from blood samples to assess the relationship between blood glucose variability and endothelial dysfunction. | The day before surgery, and at admission in the postoperative intensive care unit, and at day 1 and at day 2 after surgery. | |
Secondary | 8-iso PGF2a urinary level | 8-iso PGF2a urinary level will be measured from urinary samples to assess the relationship between blood glucose variability and oxidative stress. | The day before surgery, and at admission in the postoperative intensive care unit, and at day 1 and at day 2 after surgery. | |
Secondary | IL-6 blood level | IL-6 blood level will be measured from blood samples to assess the relationship between blood glucose variability and systemic inflammation. | The day before surgery, and at admission in the postoperative intensive care unit, and at day 1 and at day 2 after surgery. | |
Secondary | IL-10 blood level | IL-10 blood level will be measured from blood samples to assess the relationship between blood glucose variability and systemic inflammation. | The day before surgery, and at admission in the postoperative intensive care unit, and at day 1 and at day 2 after surgery. | |
Secondary | TNF-alpha blood level | TNF-alpha blood level will be measured from blood samples to assess the relationship between blood glucose variability and systemic inflammation. | The day before surgery, and at admission in the postoperative intensive care unit, and at day 1 and at day 2 after surgery. | |
Secondary | Angiotensine blood level | Angiotensine blood level will be measured from blood samples to assess the relationship between blood glucose variability and endothelial dysfunction. | The day before surgery, and at admission in the postoperative intensive care unit, and at day 1 and at day 2 after surgery. |
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