Abstract:Objective To observe the effect of light sedation based on remifentanil analgesia on the septic cardiomyopathy patients. Methods The present study was a single center retrospective cohort study. The septic cardiomyopathy patients administered into the central intensive care unit (ICU) were divided into the fentanyl group and the remifentanil group according to different analgesic strategy. The patients in the two groups were treated with dexmedetomidine based on light sedation (RASS score from -2 to +1). The parameters in the first day and the third day after administed into ICU, including serum C reactive protein (CRP), interleukin-6 (IL-6), cardiac troponin T (cTnT), N-terminal pro-brain natriuretic peptide (NT-proBNP), acute physiology and chronic health evaluation II (APACHE-II), sequential organ failure assessment (SOFA) and ICU stay time, were compared between the two groups. Results There was a significant positive correlation between cTnT, serum CRP and serum IL-6 in the first day after administered into ICU (r?=?0.682 and 0.613, P?=?0.001 and 0.000, respectively). Compared with the patients in the fentanyl group, the level of serum CRP, IL-6, cTnT and NT-proBNP significantly decreased in the remifentanil group (P?0.05) and their decreasing degree were more than above (P?0.05). The APACHE-II scores and SOFA scores in the remifentanil group were lower than those in the fentanyl group on third day after patients administered into ICU (P?0.05). The ICU stay time of the patients in the remifentanil group and the fentanyl group is (5.5?± 2.3) days and (8.3?±?4.6) days (P?=?0.014), respectively, and the difference was statistically significant (P?0.05). Conslusions The study shows that the light sedation based on remifentanil analgesia can alleviate the inflammatory response and the myocardial injury, and provided significant improvement in symptom severity and shorten the ICU stay time in the septic cardiomyopathy patients.