Study Population
The present study was a quantitative research approach with a
cross-sectional study design. Patients were recruited from the
Cardiothoracic and Neurosciences Centre (CNC) out-patient department at
the All India Institute of Medical Sciences, New Delhi which is a
tertiary-care referral centre in North India. Individual informed
consent was obtained from all the participants at enrolment in the
study. Data was collected during hospital admission, two to seven days
prior to elective CABG surgery. One hundred and twenty-one patients were
included in the study. Study population included patients between 35 to
65 years of age with established CAD (double or triple vessel disease)
planned for elective CABG surgery. Patients undergoing emergency CABG
surgery or CABG surgery with valve replacement, patients with LV
dysfunction (LVEF < 30%), renal dysfunction and known
neuropsychiatric illnesses were excluded from the study. Baseline
demographic and clinical data was obtained from all the patients.