Heart Diseases
Conditions
Keywords
Post-operative evolution, Accelerometer, Cardiac surgery, Accelerometry, Preoperative physical activity
Brief summary
Short term morbidity after elective cardiac surgery remains significant. Standard predictive models, considering simple patient demographics and clinical parameters, show limited efficiency in individual operative risk assessment. There is growing evidence about daily physical activity as a relevant indicator of preoperative frailty. Although cardiopulmonary exercise testing remains a gold standard, we are looking for more simple tools in order to identify patients with poor physical condition. Accelerometry may be an objective and reproductible method to measure physical activity at patient's home.
Detailed description
The aim of this study is to compare accelerometer-assessed preoperative physical activity between two groups of patients with different postoperative length of stay following elective cardiac surgery. In the future, accelerometry could be used to identify patients that may benefit from prehabilitation programs including exercise therapy before elective cardiac surgery.
Interventions
DEVICEAccelerometer
Patient will wear the accelerometer for 7 consecutive days to measure the level of physical activity.
Sponsors
Centre Hospitalier Universitaire de Saint Etienne
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
60 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Adult subject (≥ 60 years) awaiting elective cardiac surgery * Patients affiliated or entitled to a social security scheme * Patients who have received information about the study and have given their oral consent to participate
Exclusion criteria
* Pregnant woman, * Major limitations in physical activity for orthopedic or musculoskeletal reasons * Patients under judicial protection (curator or guardianship)
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Mean daily preoperative walking activity (average of steps/day over a period of 7 days) | Day: 7 | Measured by accelerometry. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Sleep time in hours per week (hours/week) | Day: 7 | Measured by accelerometry. |
| Moderate activity time in hours per week (hours/week) | Day: 7 | Measured by accelerometry. |
| Intense activity time in hours per week (hours/week) | Day: 7 | Measured by accelerometry. |
| Total energy expenditure evaluated over a 7 days (steps/day) | Day: 7 | Measured by accelerometry. |
| Low activity time in hours per week (hours/week) | Day: 7 | Measured by accelerometry. |
| Analysis of questionary Duke Activity Status Index (DASI) over a period of 7 days | Day: 7 | Questionary Duke Activity Status Index (DASI) estimates the maximum volume of oxygen used in one minute (VO2 Max) as well as its effort capacity in metabolic equivalent. It contains 11 items. The higher the score indicates better functional capacity. |
| Time of very intense activity in hours per week (hours/week) | Day: 7 | Measured by accelerometry. |
| Dosage of albumin (g/L) | Day: 7 | Measured by blood sample. |
| Dosage of prealbumin (g/L) | Day: 7 | Measured by blood sample. |
| Preoperative strength assessed by dynamometry (Kg) | Day: 14 | Measured by Hand Grip test. |
| Relationship between preoperative physical activity and duration of stay in intensive care | Months: 26 | Correlation between preoperative physical activity and duration of stay in intensive care. |
| Preoperative clinical outcome and duration of stay in intensive care | Months: 26 | Correlation between preoperative clinical outcome and duration of stay in intensive care. |
| Postoperative clinical outcome and duration of stay in intensive care | Months: 26 | Correlation between postoperative clinical outcome and duration of stay in intensive care. |
| Analysis of questionary Short Nutritional Assessment Questionnaire (SNAQ) over a period of 7 days | Day: 7 | Questionary Short Nutritional Assessment Questionnaire (SNAQ) evaluates nutritional status. The higher the score indicates an important nutritional support. |
Countries
France
Outcome results
None listed