Abstract:Objective To analyze the efficacy of continuous renal replacement therapy (CRRT) combined with levocarnitine in the treatment of chronic renal failure complicated with acute heart failure.Methods A total of 104 patients with chronic renal failure complicated with acute heart failure admitted to our hospital from April 2017 to April 2020 were selected and divided into control group and experimental group according to random number table method. The control group received conventional treatment combined with levocarnitine, while the experimental group was additionally treated with CRRT. Blood oxygen, cardiac function, renal function, and serum levels of irisin, soluble growth stimulation expressed gene 2 (sST2), and interleukin-33 (IL-33) were compared between the two groups.Results Before the treatment, there was no difference in partial pressure of oxygen (PO2), partial pressure of carbon dioxide (PCO2), left ventricular end-systolic dimension (LVESD), left ventricular end-diastolic dimension (LVEDD), left ventricular ejection fraction (LVEF), blood urea nitrogen (BUN), serum creatinine (Scr), B-type natriuretic peptide (BNP), serum irisin, sST2 or IL-33 levels between the groups (P > 0.05). The overall effective rate of the experimental group was higher than that of the control group (P < 0.05). The difference of PO2 before and after the treatment was higher (P < 0.05), but that of PCO2 before and after the treatment was lower in experimental group compared with control group (P < 0.05). The differences of LVESD and LVEDD before and after the treatment in experimental group were lower than those in control group (P < 0.05), while the difference of LVEF before and after the treatment in experimental group was higher than that in control group (P < 0.05). The differences of BUN, Scr, and BNP before and after treatment were lower (P < 0.05), whereas those of serum irisin, sST2 and IL-33 levels before and after treatment were higher in experimental group in comparison to control group (P < 0.05).Conclusions CRRT combined with levocarnitine in the treatment of chronic renal failure with acute heart failure has good clinical efficacy, and can improve the cardiac and renal functions of patients. Thus, it is worthy of being more widely adopted in the clinical practice.