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    Inflammation has been related to several somatic and psychological disorders and may moderate effects of psychological interventions. In the PSY-HEART trial patients benefitted from preoperative psychological interventions before undergoing coronary artery bypass graft surgery (CABG) and, if necessary, concomitant valvular surgery, compared to standard medical care. In this study we examined whether patients' baseline inflammatory status moderated the intervention effects. In a prospective three-arm randomized clinical trial with 6-months follow-up, 124 patients scheduled for CABG surgery alone or concomitant with valvular surgery were randomized to (i) standard medical care only (SMC) or two preoperative psychological interventions: (ii) CBT-based optimizing expectations (EXPECT) and an (iii) an active control group focusing on emotional support (SUPPORT). Available baseline CRP- (n = 79), IL-6- (n = 78), IL-8- (n = 78) and TNF-alpha-(n = 80) parameters were considered as potential moderators (CRP as a categorical and continuous moderator). Linear mixed model analyses were calculated to test whether baseline inflammatory levels moderated intervention effects on disability, mental and physical quality of life at 6 months after surgery. IL-8 moderated intervention effects on patients' disability and categorical CRP moderated intervention effects on mental quality of life. Follow-up tests indicated that EXPECT (and in part SUPPORT) led to lower postoperative disability and higher mental quality of life compared to SMC in patients with low baseline inflammatory markers. EXPECT indicated higher mental quality of life compared to SUPPORT in the high CRP subgroup. Patients in the SMC group had higher mental quality of life in the high CRP subgroup compared to the low CRP subgroup. Especially for patients with a lower inflammatory baseline status preoperative psychological interventions might be helpful to optimize long-term CABG surgery outcomes. Copyright © 2020 Elsevier Inc. All rights reserved.

    Citation

    Stefan Salzmann, Frank Euteneuer, Johannes A C Laferton, Meike C Shedden-Mora, Manfred Schedlowski, Rainer Moosdorf, Winfried Rief. IL-8 and CRP moderate the effects of preoperative psychological interventions on postoperative long-term outcomes 6 months after CABG surgery - The randomized controlled PSY-HEART trial. Brain, behavior, and immunity. 2021 Jan;91:202-211


    PMID: 33002633

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