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Updated: Apr 25, 2026

Surgical Swine Model of Chronic Cardiac Ischemia Treated by Off-Pump Coronary Artery Bypass Graft Surgery
Published on: March 27, 2018
Optimism measured pre-operatively is associated with reduced pain intensity and physical symptom reporting after
Amy Ronaldson1, Lydia Poole1, Tara Kidd1
1Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, United Kingdom.
Objective:
Optimism is thought to be associated with long-term favourable outcomes for patients undergoing coronary artery bypass graft (CABG) surgery. Our objective was to examine the association between optimism and post-operative pain and physical symptoms in CABG patients.
Methods:
We assessed optimism pre-operatively in 197 adults undergoing CABG surgery, and then followed them up 6-8 weeks after the procedure to measure affective pain, pain intensity, and physical symptom reporting directly pertaining to CABG surgery.
Results:
Greater optimism measured pre-operatively was significantly associated with lower pain intensity (β=-0.150, CI=-0.196 to -0.004, p=.042) and fewer physical symptoms following surgery (β=-0.287, CI=-0.537 to -0.036, p=.025), but not with affective pain, after controlling for demographic, clinical and behavioural covariates, including negative affectivity.
Conclusions:
Optimism is a modest, yet significant, predictor of pain intensity and physical symptom reporting after CABG surgery. Having positive expectations may promote better recovery.
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