• Colin Royse, Cheryl Remedios, and Alistair Royse.
• Department of Anaesthesia, The Royal Melbourne Hospital, Melbourne, Australia.
• Ann Thorac Cardiovasc Surg. 2007 Feb 1; 13 (1): 32-5.

BackgroundHigh thoracic epidural analgesia (HTEA) has been shown to reduce psychological morbidity in the early period following coronary artery bypass graft surgery (CABG). Our aim was to identify whether the effect persists in the longer term.Materials And MethodsPatients from a previous randomised study of HTEA for CABG were followed up 6 months to 3 years following surgery. The cardiac depression scale (CDS) was used to identify severity of depression.ResultsSixty-one of the original 78 patients were able to participate in the study. Eight point three percent of patients had CDS scores >100, consistent with severe depression (1 epidural patient, 4 control patients, P=0.353). After adjustment for time of follow-up, the CDS scores in patients who received HTEA were significantly lower (66+/-3.5) than patients who received intravenous morphine analgesia (79+/-3.5) P<0.05ConclusionThe use of HTEA results in a lower risk of depression 6 months or more following CABG.

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