Objective:To explore the influencing factors of continuous renal replacement therapy(CRRT)after heart transplantation(HT).Methods:For this retrospective cohort study, the relevant clinical data were retrospectively reviewed for 145 recipients undergoing HT at No.7 Municipal People's Hospital from April 2018 to December 2022.They were assigned into two groups of non-CRRT(n=124)and CRRT(n=21). And t, χ2or rank-sum test was utilized for comparing baseline data, intraoperative and postoperative general conditions of two groups.Variables with P<0.05 in univariate analysis and significant indicators in previous studies were included in multivariate logistic regression analysis to analyze the influencing factors of CRRT post-HT.Receiver operating characteristic curve(ROC)was utilized for selecting the optimal predictive cut-off value. Results:Among them, 66 cases(45.52%)developed AKI and 21(14.48%)required CRRT.Through univariate analysis, preoperative estimated glomerular filtration rate(eGFR), erythrocyte count, platelet, hemoglobin, total bilirubin, intraoperative volume of blood loss, volume of blood transfusion, urine volume, operative duration, cardiopulmonary bypass time, postoperative mechanical ventilation time, ICU stay and postoperative acute kidney injury were compared.The inter-group differences were statistically significant( P<0.05). Further multivariate logistic regression analysis revealed that preoperative hemoglobin level( OR=0.869, 95% CI: 0.770-0.980, P=0.022), preoperative platelet count( OR=0.959, 95% CI: 0.925-0.993, P=0.019), intraoperative volume of hemorrhage( OR=1.004, 95% CI: 1.000-1.009, P=0.049), intraoperative urine volume( OR=0.997, 95% CI: 0.993-1.000, P=0.035), operative duration( OR=1.022, 95% CI: 1.000-1.044, P=0.047)and mechanical ventilation time( OR=1.036, 95% CI: 1.005-1.069, P=0.024)were the independent influencing factors of CRRT post-HT.ROC curve results indicated that area under curve(AUC)of operative duration, mechanical ventilation time and intraoperative volume of hemorrhage were 0.745(95% CI: 0.636-0.855), 0.835(95% CI: 0.735-0.934)and 0.669(95% CI: 0.506-0.830)with a sensitivity of 0.714, 0.857, 0.571 and a specificity of 0.710, 0.685, 0.895.And the cut-off values were 283.5 min, 25.46 h and 825 ml respectively. Conclusions:Hemoglobin level, preoperative platelet count, intraoperative volume of hemorrhage, urine volume, operative duration, mechanical ventilation time and intraoperative urine volume are independent influencing factors of CRRT post-HT.Operative duration >283 min, mechanical ventilation time >25.46 h and intraoperative volume of hemorrhage >825 ml have some predictive values for CRRT post-HT.

Objective To investigate the biochemical and routine blood parameters in hepatocellular carcinoma (HCC) patients with portal vein blood thrombus (PVBT) or portal vein tumor thrombosis (PVTT), as well as the expression level and clinical significance of inflammatory indices in patients with different types of PVBT. Methods A total of 51 HCC patients with PVBT and 37 HCC patients with PVTT who were diagnosed and treated in The Second Affiliated Hospital of Zhengzhou University from January 2016 to December 2020 were enrolled as PVBT group and PVTT group, respectively, and 50 HCC patients without portal vein thrombosis who were hospitalized during the same period of time were enrolled as control group. General clinical data and laboratory test results were collected from the three groups. The chi-square test or the Kruskal-Wallis rank sum test was used for comparison of categorical data between groups; a one-way analysis of variance was used for comparison of normally distributed continuous data between groups, and the Kruskal-Wallis rank sum test was used for comparison of non-normally distributed continuous data between groups. The receiver operating characteristic (ROC) curve was plotted to investigate the expression levels of albumin (Alb), C-reactive protein (CRP), erythrocyte sedimentation rate (ESR), and interleukin-6 (IL-6) in the PVBT group and the PVTT group, and the area under the ROC curve (AUC) was calculated to analyze their value in predicting different types of thrombosis. Results There were no significant differences in general data and conventional biochemical parameters between the three groups (all P > 0.05), while there were significant differences in the inflammatory indices Alb, CRP, ESR, and IL-6 between the three groups ( H =10.207, 24.465, 8.917, and 37.584, P =0.006, P < 0.001, P =0.012, and P < 0.001), and further analysis between two groups showed that the PVTT group had a significantly lower level of Alb and significantly higher levels of CRP, ESR, and IL-6 than the PVBT group and the control group, and the PVBT group had significantly higher levels of CRP and IL-6 than the control group (all P < 0.05). The ROC curve analysis showed that Alb, CRP, ESR, and IL-6 had an AUC of 0.659, 0.826, 0.679, and 0.873, respectively, in the PVTT group, as well as an AUC of 0.508, 0.635, 0.503, and 0.701, respectively, in the PVBT group. Conclusion HCC patients with PVTT tend to have high expression levels of the inflammatory indices IL-6, CRP, and ESR and a low expression level of Alb, and their predictive value decreases successively, while HCC patients with PVBT tend to have relatively low expression levels IL-6, CRP, and ESR and a relatively high expression level of Alb. IL-6 and CRP have a certain value in predicting PVBT, while ESR and ALB have little predictive value.