BYpass surgery with Psychological And Spiritual Support

INTERVENTION: Interventions, psychological as well as spiritual, are manualised and applied to the patient according to his/her individual needs at least once pre‐operatively and at least once post‐operatively. The total number of intervention sessions and the duration of each session depends on each participant's need. Psychological interventions include hypnotherapeutic interventions, relaxation techniques and emotional support. Spiritual interventions include patient‐oriented conversations, intercessory prayer, Lords prayer, Lords supper, anointing or blessing. CONDITION: Coronary artery bypass surgery partially combined with valve surgery ; Surgery ; Coronary artery bypass surgery PRIMARY OUTCOME: Presence of any complication following surgery within hospital stay, and following three and six months after surgery. SECONDARY OUTCOME: 1. Patient mobility (measured with the two‐minute‐walking‐test) at discharge; 2. Patient satisfaction, assessed by the Client Satisfaction Questionnaire (CSQ‐8) at discharge; 3. Health‐related quality of life, assessed by the 12‐item Short Form (SF‐12) Health Survey at three‐ and six‐month follow‐up; 4. Wellbeing, assessed by a German Mood and Wellbeing scale (BFS) at discharge, three‐ and six‐month follow‐up; 5. Anxiety and depression, assessed by the Hospital Anxiety and Depression Scale (HADS) at discharge, three‐ and six‐month follow‐up; 6. Self‐reported pain, assessed by a Visual Analogue Scale (VAS) at discharge, three‐ and six‐month follow‐up INCLUSION CRITERIA: 1. Male and female patients aged 18 years or older 2. Scheduled for non‐emergency coronary bypass surgery partially combined with valve surgery